L - SCHEME
FULL TIME, SANDWICH & PART TIME
Course Code: 1030/2030/3030
L - SCHEME
DIRECTORATE OF TECHNICAL EDUCATION
GOVERNMENT OF TAMILNADU
Diploma in Electrical and Electronics Engineering
L – Scheme (with effect from 2011-2012)
Everything is changing – that too, at faster rate in Science and Technology. The adaptability to change
leads to Improvement and Development. In Technology front many concepts are becoming obsolete and new
concepts are coming in. With the tremendous developments in the field of Electronics, many thing that were
considered as impossible in the field of electrical engineering have become possible. Anything which is newly
invented and developed is becoming obsolete at the moment it is commercially launched. To cope up with this
situation, the educational systems must go on updating their curriculum at frequent intervals.
Conventional studies of Electrical Engineering include the areas such as Generation, Transmission,
Distribution, Design and Manufacture of Electrical machines. With the developments in nanotechnology, micromachining became possible and Energy Efficient Micro-Electro-Mechanical Machines were developed. A new
subject on ‘Special Electrical Machines’ is introduced in this L-scheme.
Electrical Energy has already become one of the basic needs of mankind. As the necessity increases,
scarcity arises. Yes the present Energy scenario is inability to match the Demand with the Supply. So proper
accountability of energy consumption is required. Energy conservation, Energy Management and Energy
Auditing play important roles in these days. The newly introduced ‘Electrical Estimation and Energy Auditing’
subject will be helpful to the students to acquire a comprehensive knowledge on the above said areas.
Diploma students are being employed as technicians in the industries and the industries use the recent
technology. To make the Diploma students employable, the curriculum must be in tune with the Latest
Technology..
In Medical Field with the introduction of many state-of-art equipments, presence of
Instrumentation Engineers in every Hospital became a mandatory requirement. In order to train the student in
the Instrumentation field subjects like ‘Transducers and Signal Conditioners’, ‘Bio-Medical Instrumentation Theory and Practical’ are introduced.
The present tend in Electronics is that to design, construct and test the performance of any circuit on
computers using appropriate software and then fabricate them using real components. To impart some skills
on simulation software, a practical subject on ‘Electrical Circuit Simulation’ is introduced.
All the above said requirements were considered and due emphasis was given to the recent
developments. Some of the obsolete portions were removed. This new curriculum is an attempt to make our
students to be more compatible to the
changing scenario in the field of Electrical Engineering and to make
them as efficient Technicians.
2|Page
DIPLOMA COURSES IN ENGINEERING/TECHNOLOGY
(SEMESTER SYSTEM)
(Implemented from 2011- 2012)
L – SCHEME
R E G U L A T I O N S*
*
Applicable to the Diploma Courses other than Diploma in Hotel Management & Catering
Technology and the Diploma Courses offered through MGR Film Institute, Chennai.
1. Description of the Course:
a. Full Time (3 years)
The Course for the Full Time Diploma in Engineering shall extend over a period of three academic
years, consisting of 6 semesters* and the First Year is common to all Engineering Branches.
b. Sandwich (3½ years)
The Course for the Sandwich Diploma in Engineering shall extend over a period of three and half
academic years, consisting of 7 semesters* and the First Year is common to all Engineering Branches.
The subjects of three years full time diploma course being regrouped for academic convenience.
During 4th and/or during 7th semester the students undergo industrial training for six months/ one year.
Industrial training examination will be conducted after completion of every 6 months of industrial training
c. Part Time (4 years)
The course for the Part Time Diploma in Engineering shall extend over a period of 4 academic years
containing of 8 semesters*, the subjects of 3 year full time diploma courses being regrouped for
academic convenience.
*
Each Semester will have 16 weeks duration of study with 35 hrs. /Week for Regular
Diploma Course and 18 hrs. / Week for Part-Time Diploma Course.
The Curriculum for all the 6 Semesters of Diploma courses (Engineering & Special Diploma Courses
viz. Textile Technology, Leather Technology, Printing Technology, Chemical Technology etc.) have
been revised and revised curriculum is applicable for the candidates admitted from 2011 – 2012
academic year onwards.
2. Condition for Admission:
Condition for admission to the Diploma courses shall be required to have passed in
The S.S.L.C Examination of the Board of Secondary Education, Tamilnadu.
(Or)
The Anglo Indian High School Examination with eligibility for Higher Secondary Course in Tamilnadu
(Or)
The Matriculation Examination of Tamil Nadu.
(Or)
3|Page
Any other Examinations recognized as equivalent to the above by the Board of
Secondary Education, Tamilnadu.
Note: In addition, at the time of admission the candidate will have to satisfy certain minimum
requirements, which may be prescribed from time to time.
3. Admission to Second year (Lateral Entry):
A pass in HSC ( Academic )# or ( Vocational ) courses mentioned in the Higher Secondary Schools in
Tamilnadu affiliated to the Tamilnadu Higher Secondary Board with eligibility for university Courses of
study or equivalent examination, & Should have studied the following subjects
Sl.
No
1.
2.
H.Sc Academic
Courses
All the
Regular and
Sandwich
Diploma
Courses
Diploma
Course in
Modern Office
Practice
Subjects Studied
Maths, Physics &
Chemistry
English & Accountancy
English &
Elements of Economics
English &
Elements of Commerce
H.Sc Vocational
Subjects Studied
Related subjects
Vocational subjects
Maths / Physics /
Related Vocational
Chemistry
Subjects Theory & Practical
English &
Accountancy,
English & Elements
of
Economics,
English &
Management
Principles
& Techniques,
English & Typewriting
Accountancy & Auditing,
Banking,
Business Management,
Co-operative
Management,
International Trade,
Marketing &
Salesmanship,
Insurance &
Material Management,
Office Secretary ship.
# Subject to the approval of the AICTE

For the Diploma Courses related with Engineering/Technology, the related / equivalent subjects prescribed
along with Practicals may also be taken for arriving the eligibility.

Branch will be allotted according to merit through counseling by the respective Principal as per communal
reservation.

For admission to the Textile Technology, Leather Technology, Printing Technology, Chemical Technology
and Modern Office Practice Diploma courses the candidates studied the related subjects will be given first
preference.

Candidates who have studied Commerce Subjects are not eligible for Engineering Diploma Courses.
4. Age Limit:No Age limit.
4|Page
5.
Eligibility for the Award of Diploma:
No candidate shall be eligible for the Diploma unless he/she has undergone the prescribed course of
study for a period of not less than 3 academic years in any institution affiliated to the State Board of
Technical Education and Training, Tamilnadu, when joined in First Year and two years if joined under
Lateral Entry scheme in the second year and passed the prescribed examination.
The minimum and maximum period for completion of Diploma Courses are as given
Below:
Diploma Course
Full Time
Full Time(Lateral Entry)
Sandwich
Part Time
6.
Minimum
Period
3 Years
2 Years
3½ Years
4 Years
Maximum Period
6 Years
5 Years
6½ Years
7 Years
Subjects of Study and Curriculum outline:
The subjects of study shall be in accordance with the syllabus prescribed from time to time, both in
theory and practical subjects. The curriculum outline is given in Annexure - I
7.
Examinations:
Board Examinations in all subjects of all the semesters under the scheme of examinations will be
conducted at the end of each semester.
The internal assessment marks for all the subjects will be awarded on the basis of continuous internal
assessment earned during the semester concerned. For each subject 25 marks are allotted for internal
assessment and 75 marks are allotted for Board Examination.
8.
Continuous Internal Assessment:
A. For Theory Subjects:
The Internal Assessment marks for a total of 25 marks, which are to be distributed as follows:
i) Subject Attendance
(Award of marks for subject attendance to each subject Theory/Practical will
be as per the range given below)
80%
84%
88%
92%
96%
ii) Test
-
83%
87%
91%
95%
100%
1
2
3
4
5
5 Marks
Mark
Marks
Marks
Marks
Marks
#
10 Marks
2 Tests each of 2 hours duration for a total of 50 marks are
to be conducted. Out of which the best one will be taken
05 marks
and the marks to be reduced to:
The Test – III is to be the Model test covering all the five
units and the marks so obtained will be reduced to :
Total
05 marks
10 marks
5|Page
WHEN TO
CONDUCT
MARKS
DURATION
Unit – I & II
End of 6th
week
50
2 Hrs
Unit – III & IV
End of 12th
week
50
2 Hrs
End of 16th
week
75
3 Hrs
TEST
UNITS
Test I
Test II
Model Examination - Compulsory
Covering all the 5 Units.
(Board Examinations-question paperpattern).
Test III
# - From the Academic year 2011-2012 onwards.
Question Paper Pattern for the Periodical Test :( Test - I & Test- II)
(OR)
14 Questions X 1 mark
……
14 marks
6 Questions X 6 marks
……
36 marks
3 Questions X 12 marks
Total
----------50 marks
-----------
iii) Assignment
10 Marks
For each subject Three Assignments are to be given each for 20 marks and the average marks scored
should be reduced for 10 marks
All Test Papers and Assignment notebooks after getting the signature with date from the students must
be kept in the safe custody in the Department for verification and audit. It should be preserved for 2
Semesters and produced to the flying squad and the inspection team at the time of
inspection/verification.
B. For Practical Subjects:
The Internal Assessment mark for a total of 25 marks which are to be distributed as follows:a)
Attendance
b)
Procedure/ observation and tabulation/
Other Practical related Work
Record writing
c)
TOTAL



:
5
: 10
: 10
----: 25
-----
Marks (Award of marks same
as theory subjects)
Marks
Marks
Marks
All the Experiments/Exercises indicated in the syllabus should be completed and the same to be
given for final Board examinations.
The Record for every completed exercise should be submitted in the subsequent Practical classes
and marks should be awarded for 20 for each exercise as per the above allocation.
At the end of the Semester, the average marks of all the exercises should be calculated for 20
marks and the marks awarded for attendance is to be added to arrive at the internal assessment
mark for Practical. (20+5=25 marks)
6|Page


9.
The students have to submit the duly signed bonafide record note book/file during the Practical
Board Examinations.
All the marks awarded for assignments, Tests and attendance should be entered in the Personal
Log Book of the staff, who is handling the subject. This is applicable to both Theory and Practical
subjects.
Communication and Life Skills Practical:
The Communication and Life Skills Practical with more emphasis is being introduced in IV Semester for
Circuit Branches and in V Semester for other branches of Engineering.
Much Stress is given on:

Monodic Communication

Dyadic Communication

Professional Communication

Pronunciation

Writing Resumes

Interview Techniques
Internal Assessment Mark
…..
25 Marks
10.
Project Work:
The students of all the Diploma Courses (except Diploma in Modern Office Practice) have to do a
Project Work as part of the Curriculum and in partial fulfillment for the award of Diploma by the State
Board of Technical Education and Training, Tamilnadu. In order to encourage students to do
worthwhile and innovative projects, every year prizes are awarded for the best three projects i.e.
institution wise, region wise and state wise. The Project work must be reviewed twice in the same
semester.
a) Internal assessment mark for Project Work & Viva Voce:
Project Review I
Project Review II
Attendance
…
…
…
10 marks
10 marks
05 marks(Award of marks same as theory Subject pattern)
----------Total
…
25 marks
-----------Proper record to be maintained for the two Project Reviews, and It should be preserved for 2 Semesters
and produced to the flying squad and the inspection team at the time of inspection/verification.
b) Allocation of Marks for Project Work & Viva Voce in Board Examinations:
Viva Voce
…
Demonstration/Presentation
…
25 marks
20 marks
-------------Total
…
45 marks
------------$
c) Written Test Mark (from 3 topics for 1 hour duration):
i)
Entrepreneurship
5 questions X 2 marks
=
10 marks
ii)
Environment Management
5 questions X 2 marks
=
10 marks
5 questions X 2 marks
=
10 marks
----30 marks
-----
iii) Disaster Management
7|Page
$-
Selection of Questions should be from Question Bank, by the External Examiner.
No choice need be given to the candidates.
Project Work & Viva Voce in Board
Examination
Written Test Mark (from 3 topics for 1 hour
duration)
--
45 Marks
--
30 Marks
TOTAL --
75 Marks
A neatly prepared PROJECT REPORT as per the format has to be submitted by individual
student during the Project Work & Viva Voce Board examination.
11.
Scheme of Examinations:
The Scheme of examinations for subjects is given in Annexure - II.
12.
Criteria for Pass:
1. No candidate shall be eligible for the award of Diploma unless he/she has undergone the prescribed
course of study successfully in an institution approved by AICTE and affiliated to the State Board of
Technical Education & Training, Tamil Nadu and pass all the subjects prescribed in the curriculum.
2. A candidate shall be declared to have passed the examination in a subject if he/she secures not
less than 40% in theory subjects and 50% in practical subjects out of the total prescribed maximum
marks including both the Internal Assessment and the Board Examinations marks put together,
subject to the condition that he/she secures at least a minimum of 30 marks out of 75 marks in the
Board Theory Examinations and a minimum of 35 marks out of 75 marks in the Board Practical
Examinations.
13.
Classification of successful candidates:
Classification of candidates who passed out the final examinations from April 2014 onwards (Joined in
first year in 2011-2012) will be done as specified below.
First Class with Distinction:
A candidate will be declared to have passed in First Class with Distinction if he/she secures not
less than 75% of the aggregate marks in all semesters put together except I and II semesters and
passes all the above semesters in the first appearance itself and completes all subjects including that of
I & II semesters within the stipulated period of study 3/ 3½/ 4 years(Full Time/Sandwich/Part Time)
without any break in study.
First Class:
A candidate will be declared to have passed in First Class if he/she secures not less than 60% of the
aggregate marks in all semesters put together except I & II semesters and completes all subjects
including that of the I & II semesters within the stipulated period of study 3/ 3½ / 4 years (Full
Time/Sandwich/Part Time) without any break in study.
Second Class:
All other successful candidates will be declared to have passed in Second Class.
The above mentioned classifications are also applicable for the Sandwich / Part-Time students who
passed out Final Examination from October 2014 /April 2015 onwards.
(both joined in First Year in 2011-2012)
8|Page
14.
Duration of a period in the Class Time Table:
The duration of each period of instruction is1 hour and the total period of instruction hours excluding
interval and Lunch break in a day should be uniformly maintained as 7 hours corresponding to 7 periods
of instruction (Theory & Practical).
-xXx-
9|Page
Chairperson
Thiru. Ramesh Chand Meena, I.A.S.,
Commissioner of Technical Education
Directorate of Technical Education
Chennai – 600 025.
Convener cum Coordinator
V.Subbaraj M.E, B.Tech.Ed
HOD / EEE & Vice-Principal
TamilNadu Polytechnic College
Madurai – 625 011
Committee Members
Sl
No.
1
Name, Designation and Address
Sl
No.
M.Arunachalam B.E
K.Sourirajan B.E.,Dip.T.T
HOD / Electrical
Govt. Polytechnic College
Coimbatore – 641 014
Principal
Theni Kammavar Sangam Polytechnic College
Theni Road, Koduvilarpatti, THENI – 625 534
6
V.Pandian M.E
2
3
4
5
Name, Designation and Address
HOD / Electrical
Govt. Polytechnic College
Bagayam Road, Vellore – 632 002
T.Marjari Theodore M.E
7
HOD / Electrical
IRT Polytechnic College
Tirunelveli – 627 007
K.Avinasilingam B.E
A.Sahayaraj B.E.,M.B.A.,M.Phil
Lecturer (Selection Grade) / Electrical
Govt. Polytechnic College
MELUR, Madurai District
Executive Engineer
Tamil Nadu Electricity Board
Thiruppathur
8
M.Ravi M.E
V.Ramprakash B.E
Lecturer / Electrical
Govt. Polytechnic College
Thuvakkudimalai Post
TRICHIRAPPALLI – 620 022
Managing Director
Industrial Electronics Corporation
K.Pudur, MADURAI – 625 007
9
SP.Alagappan B.E
Prof. S.Sivakumar M.E
Lecturer (Selection Grade) / Electrical
Annamalai Polytechnic College
Chettinad – 630 102
Associate Professor / Electrical
Thiagarajar College of Engineering
Madurai - 625 015
10
10 | P a g e
ANNEXURE-I
CURRICULUM OUTLINE
Diploma in Electrical and Electronics Engineering (Full Time)(1030)
L – Scheme
III SEMESTER
Subject
Code
HOURS PER WEEK
Theory
Practical
Total
Hours
Hours
Hours
SUBJECT
23031
Electrical Circuit Theory
5
---
5
23032
Electrical Machines - I
5
---
5
24031
Electronic Devices and Circuits *
5
--
5
23034
Electrical Circuits and Machines Practical
---
6
6
24034
Electronic Devices and Circuits Practical *
---
6
6
23036
Work Shop Practical
---
4
4
20001
Computer Applications Practical #
---
4
4
15
20
35
Total Hours
* Common with ECE branch
# Common with ALL branches
IV SEMESTER
Subject
Code
SUBJECT
Theory
Hours
HOURS PER WEEK
Practical
Total
Hours
Hours
23041
Electrical Machines - II
5
---
5
23042
Measurements and Instruments
5
---
5
24043
Digital Electronics *
5
---
5
23044
Transducers and Signal Conditioners
4
23045
Electrical Machines and Instrumentation
Practical
---
6
6
24046
Integrated Circuits Practical *
---
6
6
20002
Communication and Life Skill Practice #
---
4
4
19
16
35
Total Hours
* Common with ECE branch
4
# Common with ALL branches
11 | P a g e
V SEMESTER
Subject
Code
SUBJECT
Theory
Hours
HOURS PER WEEK
Practical
Total
Hours
Hours
23051
Power System – I
5
---
5
24052
Micro Controller *
5
---
5
23053
Special Electrical Machines
5
---
5
Elective Theory – I
5
---
5
23055
Electrical Circuits Simulation Practical
---
5
5
24056
Micro Controller Practical *
---
5
5
Elective Practical – I
---
5
5
20
15
35
Total Hours
* Common with ECE branch
ELECTIVE SUBJECTS
Any one of the following theory subject with the corresponding practical may be selected as
Elective-I
Elective Theory – I
Elective Practical – I
23071
Control of Electrical Machines
23074
Control of Electrical Machines Practical
23072
Programmable Logic Controller
23075
Programmable Logic Controller Practical
23073
Electrical Machine Design
23076
Electrical Machine Design Practical
12 | P a g e
VI SEMESTER
Subject
Code
HOURS PER WEEK
SUBJECT
Theory
Hours
Practical
Hours
Total
Hours
23061
Power System – II
6
---
6
23062
Electrical Estimation and Energy Auditing
5
---
5
Elective Theory – II
5
---
5
23064
Wiring and Winding Practical
---
4
4
23065
Computer Aided Electrical Drawing
---
6
6
Elective Practical – II
---
6
6
Project Work
---
3
3
16
19
35
23067
Total Hours
ELECTIVE SUBJECTS
Any one of the following theory subject with the corresponding practical may be selected as
Elective-II
Elective Theory – II
Elective Practical – II
23081 Power Electronics
23084
Power Electronics Practical
23082 Bio-Medical Instrumentation
23085
Bio – Medical Instrumentation Practical
24682 Computer Hardware and Networks @
24684
Computer Hardware and Networks
Practical @
@ Common with Information Technology
13 | P a g e
CURRICULUM OUTLINE
Diploma in Electrical and Electronics Engineering (Part Time)(3030)
L – Scheme
III SEMESTER
Subject
Code
SUBJECT
Theory
Hours
HOURS PER WEEK
Drawing Practical
Hours
Hours
Total
Hours
23031
Electrical Circuit Theory
4.5
---
---
4.5
23032
Electrical Machines - I
4.5
---
---
4.5
20016
Engineering Graphics - I
23034
Electrical Circuits and Machines Practical
---
---
3
3
23036
Workshop Practical
---
---
3
3
9
3
6
18
Total Hours
3
3
IV SEMESTER
Subject
Code
SUBJECT
Theory
Hours
HOURS PER WEEK
Drawing Practical
Hours
Hours
Total
Hours
24031
Electronic Devices and Circuits *
4.5
---
---
4.5
23044
Transducers and Signal Conditioners
4.5
---
---
4.5
20026
Engineering Graphics - II
---
3
---
3
24034
Electronic Devices and Circuits Practical *
---
---
3
3
20001
Computer Applications Practical #
---
---
3
3
9
3
6
18
Total Hours
* Common with ECE branch
# Common with ALL branches
14 | P a g e
V SEMESTER
Subject
Code
SUBJECT
Theory
Hours
HOURS PER WEEK
Practical
Total
Hours
Hours
23041
Electrical Machines - II
4
4
23042
Measurements and Instruments
4
4
24043
Digital Electronics *
4
4
23045
Electrical Machines and Instrumentation
Practical
3
3
24046
Integrated Circuits Practical *
3
3
6
18
Total Hours
12
* Common with ECE branch
VI SEMESTER
Subject
Code
SUBJECT
Theory
Hours
HOURS PER WEEK
Practical
Total
Hours
Hours
23051
Power System - I
4.5
---
4.5
23053
Special Electrical Machines
4.5
---
4.5
23055
Electrical Circuits Simulation Practical
---
3
3
23065
Computer Aided Electrical Drawing
---
3
3
20002
Communication and Life Skill Practical #
---
3
3
9
9
18
Total Hours
# Common with ALL branches
15 | P a g e
VII SEMESTER
Subject
Code
SUBJECT
Theory
Hours
HOURS PER WEEK
Practical
Total
Hours
Hours
24052
Micro Controller *
4
---
4
23062
Electrical Estimation and Energy Auditing
4
---
4
Elective Theory – I
4
---
4
Micro Controller Practical *
----
3
3
Elective Practical – I
----
3
3
12
6
18
24056
Total Hours
ELECTIVE SUBJECTS
Any one of the following theory subject with the corresponding practical may be selected as
Elective-I
Elective Theory – I
Elective Practical – I
23071
Control of Electrical Machines
23074
Control of Electrical Machines Practical
23072
Programmable Logic Controller
23075
Programmable Logic Controller Practical
23073
Electrical Machine Design
23076
Electrical Machine Design Practical
16 | P a g e
VIII SEMESTER
Subject
Code
23061
23064
23067
SUBJECT
Theory
Hours
HOURS PER WEEK
Practical
Total
Hours
Hours
Power System - II
4.5
---
4.5
Elective Theory – II
4.5
---
4.5
Wiring and Winding Practical
---
3
3
Elective Practical – II
---
3
3
Project Work
---
3
3
9
9
18
Total Hours
ELECTIVE SUBJECTS
Any one of the following theory subject with the corresponding practical may be selected as
Elective-II
Elective Theory – II
Elective Practical – II
23081
Power Electronics
23084 Power Electronics Practical
23082
Bio-Medical Instrumentation
23085 Bio – Medical Instrumentation Practical
24682
Computer Hardware and Networks @
24684 Computer Hardware and Networks
Practical @
@ Common with Information Technology
17 | P a g e
CURRICULUM OUTLINE
Diploma in Electrical and Electronics Engineering (Sandwich) (2030)
L – Scheme
III SEMESTER
Subject
Code
SUBJECT
Theory
Hours
HOURS PER WEEK
Practical
Total
Hours
Hours
23031
Electrical Circuit Theory
5
---
5
23032
Electrical Machines - I
5
---
5
24031
Electronic Devices and Circuits *
5
---
5
23042
Measurements and Instruments
4
---
4
23034
Electrical Circuits and Machines Practical
---
4
4
24034
Electronic Devices and Circuits Practical *
---
4
4
23036
Work Shop Practical
---
4
4
20001
Computer Applications Practical #
---
4
4
19
16
35
Total Hours
* Common with ECE branch
# Common with ALL branches
IV SEMESTER
Subject
Code
SUBJECT
HOURS PER WEEK
Theory
Practical
Total
Hours
Hours
Hours
23041
Electrical Machines - II
--
--
--
23045
Electrical Machines and Instrumentation
Practical
--
--
--
20002
Communication and Life Skill Practice #
--
--
--
23091
In plant Training
--
--
--
---
---
---
Total Hours
# Common with ALL branches
18 | P a g e
V SEMESTER
Subject
Code
HOURS PER WEEK
Theory
Practical
Total
Hours
Hours
Hours
SUBJECT
23051
Power System – I
5
---
5
24043
Digital Electronics *
5
---
5
23044
Transducers and Signal Conditioners
4
---
4
23053
Special Electrical Machines
4
---
4
Elective Theory – I
5
---
5
23055
Electrical Circuits Simulation Practical
---
4
4
24046
Integrated Circuits Practical *
---
4
4
Elective Practical – I
---
4
4
23
12
35
Total Hours
* Common with ECE branch
ELECTIVE SUBJECTS
Any one of the following theory subject with the corresponding practical may be selected as
Elective-I
Elective Theory – I
Elective Practical – I
23071
Control of Electrical Machines
23074
Control of Electrical Machines Practical
23072
Programmable Logic Controller
23075
Programmable Logic Controller Practical
23073
Electrical Machine Design
23076
Electrical Machine Design Practical
19 | P a g e
VI SEMESTER
Subject
Code
HOURS PER WEEK
Theory
Practical
Total
Hours
Hours
Hours
SUBJECT
23061
Power System – II
5
---
5
23062
Electrical Estimation and Energy Auditing
4
---
4
24052
Micro Controller *
5
---
5
Elective Theory – II
5
---
5
23064
Wiring and Winding Practical
---
4
4
24056
Micro Controller Practical *
---
4
4
23065
Computer Aided Electrical Drawing
---
4
4
Elective Practical – II
---
4
4
19
16
35
Total Hours
* Common with ECE branch
ELECTIVE SUBJECTS
Any one of the following theory subject with the corresponding practical may be selected as
Elective-II
Elective Theory – II
Elective Practical – II
23081
Power Electronics
23084
Power Electronics Practical
23082
Bio-Medical Instrumentation
23085
Bio – Medical Instrumentation Practical
24682
Computer Hardware and Networks @
24684
Computer Hardware and Networks
Practical @
@ Common with Information Technology
20 | P a g e
VII SEMESTER
Subject
Code
SUBJECT
Theory
Hours
HOURS PER WEEK
Practical
Total
Hours
Hours
23067
Project Work
---
---
---
23092
In Plant Training
---
---
---
---
---
---
Total Hours
21 | P a g e
ANNEXURE -II
SCHEME OF THE EXAMINATION
Diploma in Electrical and Electronics Engineering (Full Time)(1030)
L – Scheme
III SEMESTER
Minimum
for PASS
Duration of
Exam
(Hrs)
EXAMINATION MARKS
Internal
Board
AssessExam
Total
ment
Marks Marks
Marks
23031
Electrical Circuit Theory
25
75
100
40
3
23032
Electrical Machines - I
25
75
100
40
3
24031
Electronic Devices and Circuits *
25
75
100
40
3
23034
Electrical Circuits and Machines Practical
25
75
100
50
3
24034
Electronic Devices and Circuits Practical *
25
75
100
50
3
23036
Work Shop Practical
25
75
100
50
3
20001
Computer Applications Practical #
25
75
100
50
3
175
525
700
320
Subject
Code
SUBJECT
Total
* Common with ECE branch
# Common with ALL branches
22 | P a g e
SUBJECT
EXAMINATION MARKS
Internal
Board
AssessExam
Total
ment
Marks
Marks
Marks
Duration of
Exam
(Hrs)
Subject
Code
Minimum
for PASS
IV SEMESTER
23041
Electrical Machines - II
25
75
100
40
3
23042
Measurements and Instruments
25
75
100
40
3
24043
Digital Electronics *
25
75
100
40
3
23044
Transducers and Signal Conditioners
25
75
100
40
3
23045
Electrical Machines and Instrumentation
Practical
25
75
100
50
3
24046
Integrated Circuits Practical *
25
75
100
50
3
20002
Communication and Life Skill Practice #
25
75
100
50
3
175
525
700
310
Total
* Common with ECE branch
# Common with ALL branches
23 | P a g e
V SEMESTER
Minimum
for PASS
Duration of
Exam
(Hrs)
EXAMINATION MARKS
Internal
Board
AssessExam
Total
ment
Marks Marks
Marks
23051
Power System – I
25
75
100
40
3
24052
Micro Controller *
25
75
100
40
3
23053
Special Electrical Machines
25
75
100
40
3
Elective Theory – I
25
75
100
40
3
23055
Electrical Circuits Simulation Practical
25
75
100
50
3
24056
Micro Controller Practical *
25
75
100
50
3
Elective Practical – I
25
75
100
50
3
175
525
700
310
Subject
Code
SUBJECT
Total
* Common with ECE branch
# Common with ALL branches
ELECTIVE SUBJECTS
Any one of the following theory subject with the corresponding practical may be selected as
Elective-I
Elective Theory – I
Elective Practical – I
23071
Control of Electrical Machines
23074
Control of Electrical Machines Practical
23072
Programmable Logic Controller
23075
Programmable Logic Controller Practical
23073
Electrical Machine Design
23076
Electrical Machine Design Practical
24 | P a g e
EXAMINATION MARKS
Internal
Board
AssessExam
Total
ment
Marks
Marks
Marks
SUBJECT
Duration of
Exam
(Hrs)
Subject
Code
Minimum
for PASS
VI SEMESTER
23061
Power System – II
25
75
100
40
3
23062
Electrical Estimation and Energy Auditing
25
75
100
40
3
Elective Theory – II
25
75
100
40
3
23064
Wiring and Winding Practical
25
75
100
50
3
23065
Computer Aided Electrical Drawing
25
75
100
50
3
Elective Practical – II
25
75
100
50
3
Project Work
25
75
100
50
3
175
525
700
320
23067
Total
ELECTIVE SUBJECTS
Any one of the following theory subject with the corresponding practical may be selected as
Elective-II
Elective Theory – II
Elective Practical – II
23081
Power Electronics
23084 Power Electronics Practical
23082
Bio-Medical Instrumentation
23085 Bio – Medical Instrumentation Practical
24682
Computer Hardware and Networks @
24684 Computer Hardware and Networks
Practical @
@ Common with Information Technology
25 | P a g e
SCHEME OF THE EXAMINATION
Diploma in Electrical and Electronics Engineering (Part Time) (3030)
L-SCHEME
III SEMESTER
Minimum
for PASS
Duration
of Exam
(Hrs)
EXAMINATION MARKS
Internal Board
AssessExam
Total
ment
Marks
Marks
Marks
23031
Electrical Circuit Theory
25
75
100
40
3
23032
Electrical Machines - I
25
75
100
40
3
20016
Engineering Graphics - I
25
75
100
40
3
23034
Electrical Circuits and Machines Practical
25
75
100
50
3
23036
Workshop Practical
25
75
100
50
3
125
375
500
220
Subject
Code
SUBJECT
Total
SUBJECT
EXAMINATION MARKS
Internal Board
AssessExam
Total
ment
Marks
Marks
Marks
Duration of
Exam
(Hrs)
Subject
Code
Minimum
for PASS
IV SEMESTER
24031
Electronic Devices and Circuits *
25
75
100
40
3
23044
Transducers and Signal Conditioners
25
75
100
40
3
20026
Engineering Graphics - II
25
75
100
40
3
24034
Electronic Devices and Circuits Practical *
25
75
100
50
3
20001
Computer Applications Practical #
25
75
100
50
3
125
375
500
220
Total
* common with ECE Branch
# common with ALL branches
26 | P a g e
V SEMESTER
Minimum
for PASS
Duration of
Exam
(Hrs)
EXAMINATION MARKS
Internal Board
Assess- Exam
Total
ment
Marks Marks
Marks
23041
Electrical Machines - II
25
75
100
40
3
23042
Measurements and Instruments
25
75
100
40
3
24043
Digital Electronics *
25
75
100
40
3
23045
Electrical Machines and Instrumentation
Practical
25
75
100
50
3
24046
Integrated Circuits Practical *
25
75
100
50
3
Total
125
375
500
220
Subject
Code
SUBJECT
* Common with ECE branch
VI SEMESTER
Minimum
for PASS
Duration of
Exam
(Hrs)
EXAMINATION MARKS
Internal
Board
AssessExam
Total
ment
Marks
Marks
Marks
23051
Power System - I
25
75
100
40
3
23053
Special Electrical Machines
25
75
100
40
3
23055
Electrical Circuits Simulation Practical
25
75
100
50
3
23065
Computer Aided Electrical Drawing
25
75
100
50
3
20002
Communication and Life Skill Practical #
25
75
100
50
3
125
375
500
230
Subject
Code
SUBJECT
Total
* Common with ECE branch
# common with ALL branches
27 | P a g e
VII SEMESTER
Minimum
for PASS
Duration of
Exam
(Hrs)
EXAMINATION MARKS
Internal
Board
AssessExam
Total
ment
Marks
Marks
Marks
24052
Micro Controller *
25
75
100
40
3
23062
Electrical Estimation and Energy Auditing
25
75
100
40
3
Elective Theory – I
25
75
100
40
3
Micro Controller Practical *
25
75
100
50
3
Elective Practical – I
25
75
100
50
3
125
375
500
220
Subject
Code
24056
SUBJECT
Total
* Common with ECE branch
ELECTIVE SUBJECTS
Any one of the following theory subject with the corresponding practical may be selected as
Elective-I
Elective Theory – I
Elective Practical – I
23071
Control of Electrical Machines
23074
Control of Electrical Machines Practical
23072
Programmable Logic Controller
23075
Programmable Logic Controller Practical
23073
Electrical Machine Design
23076
Electrical Machine Design Practical
28 | P a g e
23061
23064
23067
SUBJECT
EXAMINATION MARKS
Internal
Board
AssessExam
Total
ment
Marks
Marks
Marks
Minimum
for PASS
Subject
Code
Duration of
Exam
(Hrs)
VIII SEMESTER
Power System - II
25
75
100
40
3
Elective Theory – II
25
75
100
40
3
Wiring and Winding Practical
25
75
100
50
3
Elective Practical – II
25
75
100
50
3
Project Work
25
75
100
50
3
125
375
500
230
Total
ELECTIVE SUBJECTS
Any one of the following theory subject with the corresponding practical may be selected as
Elective-II
Elective Theory – II
Elective Practical – II
23081 Power Electronics
23084 Power Electronics Practical
23082 Bio-Medical Instrumentation
23085 Bio – Medical Instrumentation Practical
24682 Computer Hardware and Networks @
24684 Computer Hardware and Networks
Practical @
@ Common with Information Technology
29 | P a g e
SCHEME OF THE EXAMINATION
Diploma in Electrical and Electronics Engineering (Sandwich Pattern) (2030)
L- SCHEME
23031
Electrical Circuit Theory
25
75
100
40
3
23032
Electrical Machines - I
25
75
100
40
3
24031
Electronic Devices and Circuits *
25
75
100
40
3
23042
Measurements and Instruments
25
75
100
40
3
23034
Electrical Circuits and Machines Practical
25
75
100
50
3
24034
Electronic Devices and Circuits Practical *
25
75
100
50
3
23036
Work Shop Practical
25
75
100
50
3
20001
Computer Applications Practical #
25
75
100
50
3
200
600
800
360
EXAMINATION MARKS
Internal
Board
AssessExam
Total
ment
Marks
Marks
Marks
Minimum
for PASS
SUBJECT
EXAMINATION MARKS
Internal
Board
AssessExam
Total
ment
Marks
Marks
Marks
Duration of
Exam
(Hrs)
Subject
Code
Minimum
for PASS
III SEMESTER
Total
* Common with ECE branch
# Common with ALL branches
Subject
Code
SUBJECT
Duration of
Exam
(Hrs)
IV SEMESTER
23041
Electrical Machines - II
25
75
100
40
3
23045
Electrical Machines and Instrumentation
Practical
25
75
100
50
3
20002
Communication and Life Skill Practice #
25
75
100
50
3
23091
In plant Training
25
75
100
50
3
30 | P a g e
V SEMESTER
Minimum
for PASS
Duration of
Exam
(Hrs)
EXAMINATION MARKS
Internal
Board
AssessExam
Total
ment
Marks
Marks
Marks
23051
Power System – I
25
75
100
40
3
24043
Digital Electronics *
25
75
100
40
3
23044
Transducers and Signal Conditioners
25
75
100
40
3
23053
Special Electrical Machines
25
75
100
40
3
Elective Theory – I
25
75
100
40
3
23055
Electrical Circuits Simulation Practical
25
75
100
50
3
24046
Integrated Circuits Practical *
25
75
100
50
3
Elective Practical – I
25
75
100
50
3
200
600
800
360
Subject
Code
SUBJECT
Total
* Common with ECE branch
ELECTIVE SUBJECTS
Any one of the following theory subject with the corresponding practical may be selected as
Elective-I
Elective Theory – I
Elective Practical – I
23071
Control of Electrical Machines
23074
Control of Electrical Machines Practical
23072
Programmable Logic Controller
23075
Programmable Logic Controller Practical
23073
Electrical Machine Design
23076
Electrical Machine Design Practical
31 | P a g e
VI SEMESTER
Minimum
for PASS
Duration of
Exam
(Hrs)
EXAMINATION MARKS
Internal
Board
AssessExam
Total
ment
Marks
Marks
Marks
23061
Power System – II
25
75
100
40
3
23062
Electrical Estimation and Energy Auditing
25
75
100
40
3
24052
Micro Controller *
25
75
100
40
3
Elective Theory – II
25
75
100
40
3
23064
Wiring and Winding Practical
25
75
100
50
3
24056
Micro Controller Practical *
25
75
100
50
3
23065
Computer Aided Electrical Drawing
25
75
100
50
3
Elective Practical – II
25
75
100
50
3
200
600
800
360
Subject
Code
SUBJECT
Total
* Common with ECE branch
ELECTIVE SUBJECTS
Any one of the following theory subject with the corresponding practical may be selected as
Elective-II
Elective Theory – II
Elective Practical – II
23081
Power Electronics
23084 Power Electronics Practical
23082
Bio-Medical Instrumentation
23085 Bio – Medical Instrumentation Practical
24682
Computer Hardware and Networks @
24684 Computer Hardware and Networks
Practical @
@ Common with Information Technology
32 | P a g e
SUBJECT
EXAMINATION MARKS
Internal
Board
Assess-ment
Exam
Total
Marks
Marks
Marks
Duration of
Exam
(Hrs)
Subject
Code
Minimum
for PASS
VII SEMESTER
23067
Project Work
25
75
100
50
3
23092
In Plant Training
25
75
100
50
3
Total
50
150
200
100
33 | P a g e
Diploma in Electrical and Electronics Engineering
Alternative Subjects for the K-Scheme to the L-Scheme
Subject
Code
Subject
Subject
Code
III SEMESTER
Subject
III SEMESTER
13031
Electrical Circuit Theory
23031
Electrical Circuit Theory
13032
Electrical Machines - I
23032
Electrical Machines - I
14031
Electronic Devices and Circuits
24031
Electronic Devices and Circuits
13034
Electrical Circuits and Machines
Practical
23034
Electrical Circuits and Machines Practical
14034
Electronic Devices and Circuits
Practical
24034
Electronic Devices and Circuits Practical
13036
Work Shop Practical
23036
Work Shop Practical
IV Semester
IV Semester
13041
Electrical Machines - II
23041
Electrical Machines - II
13042
Measurements and Instrumentation
23042
Measurements and Instruments
14041
Analog and Digital Electronics
24043
Digital Electronics
13045
Electrical Machines and
Instrumentation Practical
23045
Electrical Machines and Instrumentation
Practical
14044
Analog and Digital Electronics
Practical
24045
Digital Electronics & Linear Integrated
Circuits Practical
11011
English Communication Practical
20002
Communication and Life Skill Practice
V Semester
V Semester
13051
Power System – I
23051
Power System – I
14051
Microprocessor and Micro Controller
24052
Micro Controller
Elective Theory – I
Elective Theory – I
13071
Control of Electrical Machines
23071
Control of Electrical Machines
13072
Programmable Logic Controller
23072
Programmable Logic Controller
13073
Electrical Machine Design
23073
Electrical Machine Design
13054
Wiring and Winding Practical
23064
Wiring and Winding Practical (VI Semester)
14054
Micro Controller Practical
24056
Micro Controller Practical
Elective Practical – I
Elective Practical – I
13074
Control of Electrical Machines
Practical
23074
Control of Electrical Machines Practical
13075
Programmable Logic Controller
Practical
23075
Programmable Logic Controller Practical
13076
Electrical Machine Design Practical
23076
Electrical Machine Design Practical
34 | P a g e
Subject
Code
Subject
Subject
Code
VI Semester
Subject
VI Semester
13061
Power System – II
23061
Power System – II
13062
Electrical Estimation
23062
Electrical Estimation and Energy Auditing
Elective Theory – II
Elective Theory – II
13081
Power Electronics
23081
Power Electronics
14061
Computer Hardware and Networking
24682
Computer Hardware and Networks
14033
“C” Programming and OOPS
23065
Computer Aided Electrical Drawing
No Alternate
23065
Elective Practical – II
Computer Aided Electrical Drawing
Elective Practical – II
13084
Power Electronics Practical
23084
Power Electronics Practical
14064
Computer Hardware and Networking
Practical
24684
Computer Hardware and Networks Practical
14036
“C” Programming and OOPS Practical
13066
Project Work, Entrepreneurship,
Environment and Disaster
Management
No Alternate
23067
Project Work
35 | P a g e
SYLLABUS FOR DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING
L-SCHEME
Course Name
Subject Code
Semester
Subject Title
:
:
:
:
Diploma in Electrical and Electronics Engineering
23031
III Semester
ELECTRICAL CIRCUIT THEORY
TEACHING AND SCHEME OF EXAMINATION
No. of weeks per Semester : 16
Instruction
Subject
Electrical Circuit Theory
Hours /
Week
Hours /
Semester
5
80
Examination
Assessment marks
Board
Internal
Examination
25
75
Total
100
TOPICS AND ALLOCATION OF TIME
UNIT
TOPIC
TIME (Hours)
I
Fundamentals of Electric Circuit
15
II
Network Theorems
13
III
Single phase A.C Series Circuits
14
IV
Single phase A.C Parallel Circuits and Resonant Circuits
13
V
Three Phase A.C. Circuits
13
Revision and Test
12
Total
80
RATIONALE
Understanding the current flow characteristics, various Laws and theorems dealing with Electric Circuits
is very much essential to study a course in Electrical Engineering. This subject may be the introductory to the
Electrical Engineering but without a strong knowledge in this subject one cannot understand the other subjects
of Electrical Engineering. Based on this requirement, this subject is introduced in the Third Semester.
36 | P a g e
OBJECTIVES
To understand

Electric field, Capacitance, Basic electricity, DC circuits and related laws.

Network analysis, Basic theorems for dc circuits.

Single phase ac fundamentals, RLC series circuits.

Single phase ac parallel circuits and Resonance circuits.

Three phase ac circuit fundamentals and three phase power measurement
37 | P a g e
23031. ELECTRICAL CIRCUIT THEORY
DETAILED SYLLABUS
Contents : Theory
Unit
Name of the Topic
Fundamentals of Electric Circuit
Basic concepts of current, emf, potential difference, power and energy
I
– circuit elements – energy sources.
Resistance - resistivity, temperature coefficient of resistance – Ohm’s
law – applications of Ohm’s law - series circuits – voltage division –
parallel circuits - current division – series and parallel circuits –
Kirchoff’s laws – Problems in the above topics.
Inductance – self and mutual inductance.
Electric Flux - Electric Flux Density – Electric field intensity – Electric
potential – Coulomb‘s laws of electrostatics – concept of capacitance
– relationship between Voltage, Charge and Capacitance – energy
stored in a capacitor – capacitance of parallel plate capacitor –
capacitors in series and in parallel – Problems in above topics.
II
III
Network Theorems
Network – Branches – Nodes – Mesh current and Node voltage
analysis – Voltage source and Current source transformations - Star
and Delta transformations – Thevenin’s Theorem - Norton’s Theorem,
Superposition Theorem and Maximum power transfer theorem.
(Problems in D.C Circuits only)
Single phase A.C Series Circuits
‘J’ Operator – rectangular and polar coordinates – Sinusoidal voltage
and current – instantaneous, peak, average and effective values –
form factor and peak factor (derivations for sine wave) – pure
resistive, inductive and capacitive circuits – RL, RC, RLC series
circuits – impedance – phase angle – phasor diagram – power and
power factor – power triangle – apparent power, active and
reactive power – problems on all the above topics.
Hours
Marks
15
15
13
15
14
15
13
15
Single phase A.C Parallel Circuits and Resonant Circuits
IV
a) Single phase A.C Parallel Circuits
Parallel circuits (two branches only) – conductance, susceptance and
admittance – problems.
b) Resonant Circuits
Resonance : Series resonance – Resonance Frequency – Resonance
Curves –Variation of current and voltage distribution in series RLC
circuit with frequency – Selectivity – ‘Q’ factor – Half power
frequencies – Bandwidth. Parallel resonance – Two branch parallel
circuits – Resonance frequency – Q Factor – problems.
38 | P a g e
Unit
V
Name of the Topic
Three Phase A.C. Circuits
Importance of 3 phase circuits – Star, Delta connections – Phase
sequence – Balanced load – Relation between voltages, currents of
line and phase values in star and delta connection – Problems in
balanced loads of star and delta connections – Measurement of 3
phase power using two wattmeter method (Derivation and Problems)
– Effects of unbalanced loads in Star and Delta systems
Hours
Marks
13
15
TEXT BOOK
Sl.No.
1.
Name of the Book
Electric Circuit Theory
Author
Dr.M.Arumugam
Dr.N.Premkumaran
Publisher
Khanna Publishers,
New elhi
REFERENCE BOOKS
Sl.No.
Name of the Book
Author
1.
Circuits and Networks
Analysis and Synthesis.
A. Sudhakar
Shyammohan S Palli
2.
Electric Circuits
Mahamood Nahvi
Joseph A Edminister
Publisher
Tata
McGraw
Hill
Education
Private
Ltd.,
Tata
McGraw
Hill
Education Private Ltd.,
39 | P a g e
ELECTRICAL CIRCUIT THEORY
MODEL QUESTION PAPER I
Time: 3 hours
Marks: 75
Note: Part A questions carry each 1 mark and answer any Fifteen questions.
Part B questions carry each 12 marks and answer all questions by selecting either “a” or “b”.
PART- A
01. State Ohm’s Law
02. State electric flux density.
03. Write the formula for capacitance of a parallel plate capacitor.
04. Define Self inductance.
05. What is a node?
06. Give the current equivalent of voltage source.
07. Write the expression for star to delta transformation
08. State the condition for maximum power transferred from source to load.
09. Define cycle
10. Convert 50 30 into rectangular form.
11. Define form factor
12. Draw the vector diagram for RC series circuit.
13. Define admittance
14. State the condition for series resonance
15. Define dynamic resistance
16. Define ‘Q’ factor
17. Define balanced load in three phase system
18. Define phase sequence
19. State the relationship between line voltage and phase voltage in star connected system.
20. Write the expression for power factor when the power of a three phase circuit is measured
by two wattmeter method
40 | P a g e
PART - B
21. a. Three resistors 12 ohm, 18 ohm and 36 ohm are connected in parallel. This parallel circuit is
connected in series with a resistor ‘R’. The whole circuit is connected is supplied at 60 Volt and it is
found that power developed in 12 ohm resistor is 48 watts. Determine the value of R and total power.
(12)
OR
b. 1. A circuit consists of two resistors 20 ohm and 30 ohm connected in parallel. They connected in
series with a resistor of 15 ohm. If the current through the 15 ohm resistor is 3 A, find the
current in the other resistors and supply voltage.
(6)
2. Show that Rt =R0 (1+α0t)
(6)
22. a. 1. Obtain Thevinin’s equivalent circuit at terminals AB of the circuit given below.
8
(6)
12 V
A
40 V
5
2
B
2. Reduce the given circuit into a single voltage source by using source transformation.
(6)
OR
b.
Find the power dissipated in the 10 Ω resistor using Node-Voltage method
(12)
41 | P a g e
23. a. 1. The alternating current passing through a circuit is given by 141.4 sin 314.2t. Find the values of
(a) r.m.s current, (b) the frequency (c) the instantaneous value of the current when t=0.02 second.
(6)
2. From the fundamental principle show that the R.M.S. value of a sinusoidal alternating
current is 0.707 times the maximum value.
(6)
OR
b. A current of 5A flows through a non-inductive resistance in series with a choking coil when
supplied at 250V, 50Hz. If the voltage across the resistance is 125V and across the coil 200V,
calculate (a) the impedance, reactance and resistance of coil (b) the power absorbed by the coil
and (c) the total power. Draw the vector diagram
(12)
24.
a. A circuit contains two impedances Z1 = (3 + J4) ohms and Z2 = (4 + J3) ohms in parallel and
Connected to 50V, 50 Hz supply. Determine the currents through impedances, total current,
Power and power factor.
(12)
OR
b. . A coil of 10 ohm and 0.4 Henry is in series with a capacitor of 40 mfd. A voltage of 200 volt at
variable frequency is applied to the circuit. At what frequency will the current be maximum?
Also calculate current, voltage across the coil and capacitor at this frequency.
(12)
25.
a.1. Derive the relation between the line and phase current in a delta connected circuit.
(6)
2. A balance delta connected load of (8+j6) ohms per phase is connected to a three phase
400V supply. Calculate the total power consumed. Also find out the readings of the
two wattmeters connected to measure power.
(6)
OR
b. A balanced load connected to a three phase supply comprises three identical coils in star.
The line current is 25 A, KVA input is 20, KW input is 11. Find the phase voltage, line
voltage, KVAr input, resistance and reactance of each coil of the load.
(12)
42 | P a g e
ELECTRICAL CIRCUIT THEORY
MODEL QUESTION PAPER II
Time: 3 hours
Marks: 75
Note: Part A questions carry each 1 mark and answer any Fifteen questions.
Part B questions carry each 12 marks and answer all questions by selecting either “a” or “b”.
PART - A
01. Define resistivity
02. Define Electric field.
03. Write the relationship between voltage, charge and capacitance.
04. State Kirchhoff’s current law.
05. Define network.
06. Draw the Norton’s equivalent circuit.
07. State the basis for node voltage analysis.
08. Write the expression for delta to star transformation
09. Define Amplitude10. What is the equation for a sinusoidal current of 25 Hz frequency having
a R.M.S. value of 40 amps?
11. Define power factor
12. State the relationship between voltage and current in a pure inductive circuit.
13. Define conductance.
14. Draw the admittance triangle.
15. Define bandwidth of RLC series resonance circuit.
16. State the condition for parallel resonance.
17. State the two types of three phase connections.
18. Write the expression for power in three phase system.
19. Write the relationship between line current and phase current in delta connected system.
20. Define unbalanced load in three phase system.
43 | P a g e
PART - B
21 a. A resistor of 10 ohm is connected in series with two resistors of 15 ohm arranged in parallel. What
resistance must be shunted across the parallel combination so that the total current taken shall be 1.5A
with 20V applied?
(12)
OR
b.1.An aluminium wire has a resistance of 3.6 ohm at 20°C. What is its resistance at 50°C, if the
temperature coefficient of resistance is 0.00403 at 20°C?
(6)
2..Derive an expression for energy stored in a capacitor.
(6)
22 a. By Mesh current method, determine the current in the 10 Ω resistor.
2
20 V
10 
5
(12)
1
5
40 V
OR
b.1.Using Norton’s theorem, find current through 6 ohm resistance.
2.
(6)
Determine the current through the 8 Ω resistor using superposition theorem.
(6)
44 | P a g e
23.
a. A circuit consists of a pure resistance and a coil in series. The power dissipated in the resistance is
500W and the drop across it is 100 V. The power dissipated in the coil is 100W and the drop across it is 50V.
Find the reactance and resistance of the coil and the supply voltage.
(12)
OR
b. Two coils A and B are connected in series across a 240V, 50 Hz supply. The resistance of A is 5
ohm and the inductance of B is 0.015H. If the input from the supply is 3KW and 2KVAr, find the inductance of A
and resistance of B.
(12)
24.
a. A circuit consists of a 10 ohm resistor, a 300 mfd capacitor, an inductor having an inductance of
0.96H all in parallel across a 200V, 25Hz supply. Calculate (a) the current in each branch (b) the total current
(c) the power factor of the complete circuit and (d) the total power.
(12)
OR
b. An inductive circuit of resistance 2 ohm and inductance of 0.01 H is connected to a 250V, 50Hz
supply. What capacitance placed in parallel will produce resonance? Also find the total current taken from the
supply, Q factor and dynamic resistance.
(12)
25.
a.
1. Derive the relation between the line and phase voltage in a star connected circuit.
(6)
2. List out the advantages of three phase system over single phase system.
(6)
OR
b.
With the aid of phasor diagram show that three phase power and power factor can
be measured by using two watt meters.
(12)
45 | P a g e
STATE BOARD OF TECHNICAL EDUCATION AND TRAINING, TAMIL NADU
SYLLABUS FOR DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING
L-SCHEME
Course Name
Subject Code
Semester
Subject Title
:
:
:
:
Diploma in Electrical and Electronics Engineering
23032
III Semester
Electrical Machines-I
TEACHING AND SCHEME OF EXAMINATION
No. of weeks per Semester : 16
Instruction
Subject
Hours /
Week
Hours /
Semester
5
80
Electrical Machines-I
Examination
Assessment marks
Board
Internal
Examination
25
75
Total
100
TOPICS AND ALLOCATION OF TIME
UNIT
TOPIC
TIME (Hours)
I
ELECTRO MAGNETISM
13
II
DC GENERATORS
15
III
DC MOTORS
14
IV
SINGLE PHASE AND THREE PHASE TRANSFORMER
13
V
MAINTENANCE OF DC MACHINES AND BATTERIES
13
REVISION AND TEST
12
TOTAL
80
RATIONALE
Electrical machines play vital role in every aspect of our life. They generate Electricity. All the
machineries in industries are driven by electrical motors. Therefore study of machines is must for any course
in Electrical Engineering. In this subject DC machines, Transformers and Batteries are introduced.
46 | P a g e
OBJECTIVES
 Magnetic circuits and Principle, Magnetic Materials, Inductions and Associated laws
 DC Generator Principle, construction, types of windings, Types of Generators
 Characteristics, Testing, efficiency and applications
 DC Motor Principle, Construction, types of winding, Types of Motors
 Characteristics, Testing, efficiency and application and starters
 Principle of Transformer, Construction, EMF Equations, Vector diagrams, losses, Regulation, Efficiency,
Auto transformer, Parallel operation and load sharing
 3-Φ Transformer connections, parallel operation, protective devices, cooling methods and tap changing
methods
 Maintenance of DC Machines, construction and active Materials of Acid and alkaline Batteries
47 | P a g e
23032 ELECTRICAL MACHINES-I
DETAILED SYLLABUS
Contents : Theory
Unit
Name of the Topic
Hours
Marks
13
15
15
15
ELECTRO MAGNETISM
Introduction - Magnetism - Magnetic Materials -Magnetic Field-
I
Magnetic Flux (Φ) - Laws of Magnetic Force (F) Magnetic field
strength (H) - Flux
Density (B) - [Intensity of Magnetisation (I)]
- Absolute and Relative Permeability of a Medium - Force on a Current
Carrying Conductor Lying in a Magnetic Field (Derivation) - Problems.
Definition - Concerning Magnetic Circuit - MMF, Amphere
Turns
(AT)
–
Reluctance
(R),
Permeance
(M),
Reluctivity,
Comparision B/W Magnetic and Electric Circuit - Problems in
Magnetic Circuits - Magnetic Hystersis, Eddy Current Losses - Lifting
Power of Electro Magnet and Energy Stored in Magnetic Field Faraday’s Law of Electromagnetic Induction - Len’s Law - Fleming’s
Left Hand and Right Hand Rule - Induced EMF (E) - Self Induction Mutual Induction - Statically, Dynamically Induced EMF.
DC-GENERATORS
II
Introduction - Construction and Principle of DC Generators Armature Windings - Important Terms about windings - Lap Winding
and Wave Windings - Development of Winding Diagram for 24 Slots
and 4 Poles Single Layer Lap & Wave Winding - Types of Generots Condition for Self Excitation - EMF Equation - Problems - Losses Power Stages - Efficiency - Problems - Characteristics of DC
Generator - No Load Characteristic - Load Characteristic for DC
Series, Shunt & Compound Generators - Armature Circuit Resistance
- Armature Reaction - Compensation of Armature Reaction Swinburne’s Test - Load Test (DC Shunt, Series and Compound
Generators) - Application of DC Generators.
48 | P a g e
Unit
Name of the Topic
Hours
Marks
14
15
13
15
DC-MOTORS
III
Introduction - Construction and Principle of Operation of DC
Motors - Significance of the Back EMF(Eb) - Voltage - Equation of a
Motors - Types of Motors - Torque (Derivation) - Armature Torque Shaft Torque - Problems - Speed of DC Motors - Torque - Speed
Relationship - Losses & Efficiency - Comparison of DC Shut & DC
Series Motors - Power Stages - Critical Resistance and Critical Speed
- Characteristics of DC Motor - Torque Vs Armature Current, Speed
Vs Armature Current, Speed Vs Armature Torque for DC Motors Speed Control of DC Motors - Armature Control & Field Control for
DC Motors - Load Test (DC Shunt, Series - Compound Motors) Commutation - Methods of Improving Commutation - Application of
DC Motors.
DC STARTERS:
Necessity of Starters – Construction and Working principles of
3 Point and 4 Point Starters
SINGLE PHASE TRANSFORMER:
IV
Introduction - Working Principle - Construction - EMF Equation
- Voltage Transformation Ratio - Transformer Rating - Problems - No
Load Vector Diagram - Problems - Transformer on Load - Transformer
With Resistance and Leakage Reactane - Vector Diagram on Load
(Different Power Factors) - Equivalent Circuits - OC and SC Test Regulation - Losses - Efficiency - Problems - Condition for Max
Efficiency - All Day Efficiency - Auto Transformer -Principle and
Advantages - Parallel Operation - Load Sharing.
THREE PHASE TRANSFORMER:
Construction - 3φ Transformer Connection - 3φ To 2 Phase
Conversion - Parallel Operation - Cooling Methods - Protective
Devices and Accessories (Conservator, Breather, Buckholz Relay &
Explosion Vent) - Necessity of Tap Changers - on Load & off Load
Tap Changers.
49 | P a g e
Unit
Name of the Topic
Hours
Marks
13
15
MAINTENANCE OF DC MACHINES:
Causes of Sparking in Commutators - Defects in Commutator
V
and Remedies - Resurfacing of Commutators and Brushes - Function
& Requirements - Brush Holder – Formation & Different Types Staggering of Brushes - Brush Pressure - Defects in Dc Armature
Winding - Growler.
STORAGE BATTERIES:
Faraday’s Law of Electrolysis - Primary and Secondary
Batteries - Classification of Secondary Batteries Based on their uses.
LEAD ACID BATTERY: Construction, Active Materials and Chemical
Chains - Electrical Characteristics of Lead Acid Cell, Battery Rating Indication of fully Charged Cell - Application of Lead Acid Battery Method of Charge System - Constant Current and Constant Voltage
System - Trickle Charging - Maintenance of Lead Acid Cell.
ALKALINE
BATTERY:
Nickel
Iron
and
Edison
Batteries
-
Construction, Active Material and Chemical Changes - Electrical
Characteristics - Comparision of Lead and Edison Cells.
TEXT BOOK
Sl.No.
1.
2.
3
Name of the Book
Electric Machines
Author
D P Kothari
I J Nagrath
A Course in Electrical B.L.Theraja
Engineering (Volume-2)
Electrical Machines
M.V. Desh Pande
Theory and Practice
Publisher
Tata McGraw Hill
Seventh reprint 2011
S.Chand & Co.
New Delhi
PHI Learning
New Delhi, 2011
REFERENCE BOOKS
Sl.No.
Name of the Book
1.
Electrical Machines
Theory and Practice
2.
Operation &
Maintenance Electrical
Equipment
(Volume 1 & Volume 2)
3.
Electrical Technology
Author
M.N.Bandyopadhyay
B.V.S. Rao
J.P.Gupta
Publisher
PHI Learning
New Delhi, 2011
Media promoters &
Publisher Private
Limited, Bombay
S.K.Kataria & Sons
New Delhi
50 | P a g e
MODEL QUESTION PAPER-I
PART- A
Answer any 15 questions out of 20 given questions. One mark for each question.
1. Define Magnetic flux (Φ)
2. State Laws of Magnetic Force (F)
3. State Fleming’s Left Hand Rule
4. Explain Mutual Induction
5. What is Lap winding?
6. What is the condition for self excitation?
7. Draw the circuit for DC series Generator
8. State any two application of DC compound generator
9. Define Back emf.
10. Write the Torque equation of a DC Motor
11. Explain Critical Resistance
12. State any two applications for a DC series motor
13. Why transformer rating is always in KVA?
14. Draw No Load Vector Diagram of a Single Phase Transformer.
15. What is the condition for Maximum efficiency?
16. Write any two advantages of Parallel Operation
17. What is the use of Silica Gel in Bucholz relay?
18. Write any two causes of sparking in commutators.
19. Define Secondary Battery
20. What are the indications of fully charged cell for Lead Acid Battery?
51 | P a g e
PART- B
21. Write short notes on the following:
A 1. Hystersis Losses & Eddy Current Losses
(6)
2. Explain statically Induced EMF with neat diagram
(6)
(OR)
B 1. Derive force on a current carrying conductor lying in a Magnetic field.
2. Define Magnetic field strength (H), flux density (B), Intensity of Magnetization (I)
22.
A. 1. Drive EMF equation of a DC Generator
(6)
(6)
2. A DC shunt Generator has the following data.
Load Current is 500A
Rated Voltage is 450V
Shunt fild resistance (Rsh) 120Ώ Armature resistance is 0.030 ohms
Find the Generated EMF.
(OR)
B. 1. Explain Load Characteristics of a DC shunt Generator
2. Explain the 3 components of a DC Machine
Field System
Commutator
23.
(6)
(6)
(6)
(6)
Yoke
A. 1. Explain working principle of operation of DC Motor
2. Develop the Torque equation of the DC Motor
(6)
(6)
(OR)
24.
B. 1. Explain commutation with neat diagram.
(6)
2. Explain 3 point starter with neat diagram
(6)
A.1. Explain working principle of Transformer
2. Explain open circuit test with neat diagram
(6)
(6)
(OR)
25.
B.1. Write about any two 3 phase transformer connection
(6)
2. Write short notes about Bucholz relay
(6)
A.1. Write common causes of sparking in commutators
(6)
2. Explain Staggering of Brushes
(6)
(OR)
B.1. What are Maintenance of Lead Acid Cell
(6)
2. Compare Lead Acid and Edison Cell
(6)
52 | P a g e
MODEL QUESTION PAPER-II
PART- A
Answer any 15 questions out of 20 given questions. One mark for each question.
1. Define Absolute and relative permeability
2. Define Ampere Turn (A.T)
3. State Len’s Law
4. Compare any two factors between Magnetic and Electric circuit
5. What is wave winding?
6. Explain separately excitation
7. Define Back pitch and Front pitch
8. What is an Armature?
9. Draw the Speed-Torque curve of a DC Motor
10. What are the Speed Control factors?
11. Draw the circuit diagram of a DC series Motor
12. Write any 2 application of DC Shunt Motor
13. Define Voltage transformation ratio
14. Define Regulation
15. What is Auto transformer?
16. What are the conditions for 2 single phase transformer parallel?
17. What is the function of Brush?
18. State Faraday’s Law Electrolysis.
19. What is the active material used in Nickel – Iron cell?
20. What is specific gravity of H2 SO4?
53 | P a g e
PART- B
21. a) Derive Lifting Power ‘P’ is equal to
B2A . Kg.Wt. by Neat Explanation.
19.62μ0
(OR)
b) Explain dynamically induced emf.
22.
a) Explain constructional details of a DC Generator
(OR)
b) Explain an Armature reaction with neat diagram
23.
a) Explain Armature control and field control method
(OR)
b) Explain 4 point starter with a neat diagram
24.
a) Explain Auto Transformer and also write advantages and disadvantages
(OR)
b) Write short notes on Load & Off Load Tap changes
25.
a) Explain Growler with neat diagram
54 | P a g e
STATE BOARD OF TECHNICAL EDUCATION AND TRAINING, TAMIL NADU
SYLLABUS FOR DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING
L-SCHEME
Course Name
Subject Code
Semester
Subject Title
:
:
:
:
Diploma in Electrical and Electronics Engineering
24031
III
Electronics Devices and Circuits
TEACHING AND SCHEME OF EXAMINATION
No. of weeks per Semester : 16
Instruction
Subject
Hours /
Week
Hours /
Semester
Electronic Devices and
5
80
Examination
Assessment marks
Board
Internal
Total
Examination
25
75
100
Circuits
TOPICS AND ALLOCATION OF TIME
UNIT
TOPIC
TIME (Hours)
I
Semiconductor and Diodes
14
II
Bipolar Junction Transistor
14
III
Transistor oscillators and FET and UJT
15
IV
SCR,DIAC,TRIAC,MOSFET and IGBT
13
V
Opto Electronic Devices and Wave shaping Circuits
14
Revision and test
10
Total
80
RATIONALE
Electronics decides all controlling activities of Electrical machines. Study of various Electronic devices
and the circuits incorporating these devices is very much essential. Therefore this subject is introduces. A
thorough knowledge of this subject will be useful in understanding other subjects in Electronics.
55 | P a g e
OBJECTIVES
On completion of the following units of syllabus contents, the students must be able to:

Study the working principle of PN junction diode and transistor

Understand the working principle of different types of rectifiers

Understand the different transistor configurations

Differentiate various types of amplifiers

Study the performance of special devices like UJT,FET

Study the performance of different transistor oscillators

Study the performance of SCR,DIAC, and TRIAC

Study the performance of MOSFET and IGBT

Know the construction and working principle of optoelectronic devices

Study the performance of solar cell

Explain the concept of wave shaping circuits

Study the working principle of clippers and clampers
56 | P a g e
24031 ELECTRONIC DEVICES AND CIRCUITS
DETAILED SYLLABUS
Contents : Theory
Unit
I
Name of the Topic
Semiconductor and Diodes:
Semiconductor – Definition - classification of semiconductor
Hours
Marks
14
15
-
Intrinsic - Extrinsic semiconductor - N type & P type -Drift current &
Diffusion current
Diodes-PN junction diode-Forward and Reverse bias characteristicsSpecification-Zener
diode-Construction
&
working
principle-
Characteristics-Zener break down-Avalanche break down-Zener diode
as a voltage regulator - Applications-Specifications
Rectifier-Introduction-Classification of Rectifiers-Half wave rectifierFullwave rectifier- Bridge rectifier – Efficiency – Ripple factor –
comparison - Applications – Filters –
C, LC, and PI Filters.
Bipolar Junction Transistor:
II
Transistor – NPN and PNP transistor – operation- Transistor as an
14
amplifier – Transistor biasing – Fixed bias, Collector base bias, Self
15
bias – CB, CE, CC Configurations – Characteristics – Comparison
between three configurations in terms of input impedence, Output
impedence, Current gain, Voltage gain – RC coupled amplifier – Load
characteristic analysis – Emitter follower and its application – Negative
feedback – Basic concept, effect of negative feedback, Types of
Negative feedback connections – Transistor as a switch
Transistor Oscillators and FET and UJT
III
Transistor- oscillator – Classifications – Condition for oscillations
(Basrkhausen critierion) – General form of LC oscillator – Hartley
15
15
Oscillator – Colpitts Oscillator – RC Phase shift oscillator, Crystal
oscillator.
Field Effect Transistor – Construction – Working principle of FET –
Difference between FET and BJT – Characteristics of FET –
Applications – FET amplifier(Common source amplifier).
UJT – Construction – Equivalent circuit – Operation – Characteristics
– UJT as a relaxation oscillator.
57 | P a g e
Unit
Name of the Topic
Hours
Marks
13
15
14
15
SCR, TRIAC, DIAC, MOSFET and IGBT
IV
SCR – Introduction – Working – Two transistor analogy of SCR – VI
Characteristics
–
SCR
as
a
switch,
Controlled
rectifier
–
Specifications.
TRIAC – Basic working principle – Characteristics – Speed control of
fan using DIAC and TRIAC.
DIAC – Construction – working – characteristics – DIAC as bidirectional switch.
MOSFET – Construction – characteristics – MOSFET as a switch –
CMOS basic concept.
IGBT – Basic principle – IGBT as a switch.
Opto Electronics Devices and waveshaping circuits
V
LDR, LED, 7 Segment LED, LCD, Opto coupler, Opto interrupter –
Infrared transmitter and receiver - Laser diode(Simple treatment) –
Solar cell – Avalanche Photo diode - Photo transistor.
Diode clipper – Types – Clamper circuits using Diode – Voltage
doubler, Astable, Monostable and Bistable operations using Transistor
– Schmitt Trigger.
TEXT BOOK
Sl.No.
1.
Name of the Book
Principle of Electronics
Author
V.K.Mehta
Publisher
S. Chand & Company ltd.
S.Sallaivahanan
2.
Electronics Devices &
Circuits
N.Suresh Kumar
Tata McGraw Publication
A.Vallavaraj
REFERENCE BOOKS
Sl.No.
1
2
3
4
Name of the Book
Electronics principles
Electronics Devices &
Circuits
Electronics Devices &
Circuits
Optical Fiber Communication
Author
Malvino
Allen Mottershed
Jacob Millman and
Halkies
Gerd Keiser
Publisher
Tata McGraw – Hill
Publication
Tata McGraw – Hill
Publication
Tata McGraw – Hill
Publication
Tata McGraw – Hill
Publication
58 | P a g e
24031 ELECTRONIC DEVICES AND CIRCUITS
Time : 3 Hrs.
PART A
MODEL QUESTION PAPER – I
Max Marks : 75
(15 x 1 = 15)
Answer any FIFTEEN questions
1. Give an example for donor impurity.
2. What is the cut in voltage for silicon diode?
3. What is the peak inverse voltage of full wave rectifier?
4. Name a component used for filtering.
5. Draw the symbol of NPN transistor.
6. What is the formula for current gain in common emitter configuration?
7. Which bias is normally used in applications?
8. What is the need for negative feedback?
9. What is the condition for oscillation?
10. What is the output frequency of Heartley oscillator?
11. Mention the relationship between the parameters of JFET.
12. State any two applications of UJT
13. Give an example for unidirectional switch.
14. Draw the symbol of TRIAC.
15. Name the terminals of DIAC.
16. Expand MOSFET.
17. In which bias, LED emits light?
18. Expand LASER.
19. What is the other name for Astable Multivibrator?
20. Draw the output waveform of negative clipper.
PART B
(5 x 12 = 60 Marks)
Note : i) Answer all Questions
ii) All sub divisions carry equal marks
21 A) Explain the operation of Zener diode and draw its characteristics. (OR)
B) Explain the operation of full wave rectifier and draw its output waveforms. List out
its applications.
22 A) i) Explain the operation of NPN transistor.
ii) Compare three different configurations of transistors. (OR)
B) Explain the operation of RC coupled amplifier and draw its frequency response.
23 A) i) Explain the operation of Hartley oscillator.
ii) Differentiate FET with BJT (OR)
B) Explain the construction and operation of UJT.
24 A) i) Explain SCR as a controlled rectifier.
ii) Discuss about the specifications of SCR. (OR)
B) Explain the operation of DE-MOSFET with neat diagram.
2 5 A) Explain the operation of Solar cell and Photo Transistor. (OR)
B) Explain the operation of Schmitt Trigger and draw its output waveform.
.
59 | P a g e
24031 ELECTRONIC DEVICES AND CIRCUITS
Time : 3 Hrs.
PART A
MODEL QUESTION PAPER – II
Max Marks : 75
(15 x 1 = 15)
Answer any FIFTEEN questions
1. Give an example for intrinsic semiconductor.
2. Draw the symbol of Zener diode
3. What is the efficiency of half-wave rectifier?
4. How many filtering components are used in pi filter?
5. In which region transistor has to be operated for faithful amplification?
6. What is the output impedance of common base configuration?
7. What is Q-point?
8. Name the types of feedback
9. What are the components used in tank circuit?
10. State the advantages of crystal oscillator.
11. Give an example for voltage controlled device.
12. What is the formula for intrinsic standoff ratio?
13. What is the family name of SCR?
14. How many terminals are present in TRIAC?
15. Expand DIAC.
16. What are the types of MOSFET?
17. Draw the symbol of LDR.
18. What is solar cell?
19. Draw the output waveform of negative clamper.
20. How many stable states are present in Astable Multivibrator?
PART B
(5 x 12 = 60 Marks)
Note : i) Answer all Questions
ii) All sub divisions carry equal marks
21 A) Explain the operation and characteristics of PN junction diode with suitable diagram. (OR)
B) Explain the operation of C and pi filter and draw its waveform.
22 A) i)
Explain the operation of transistor as an amplifier.
ii) Write short notes on fixed bias. (OR)
B) i)Explain the operation of emitter follower.
ii) Explain how transistor is used as a switch
23 A) i) Discuss about the conditions for oscillation..
ii) Explain the operation of RC phase shift oscillator. (OR)
B) Explain the working principle of JFET and draw its characteristics.
24 A) With neat diagram explain the working principle of SCR and draw the transistor
analogy of SCR. (OR)
B) i)Explain the operation of DIAC with its characteristics.
ii) Explain the construction details of MOSFET.
25. A) Explain the operation of i)Opto interrupter ii)avalanche photo diode. (OR)
B) Explain the operation of positive and negative clamper.
60 | P a g e
STATE BOARD OF TECHNICAL EDUCATION AND TRAINING, TAMIL NADU
SYLLABUS FOR DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING
L-SCHEME
Course Name
: Diploma in Electrical and Electronics Engineering
Subject Code
: 23034
Semester
: III
Subject Title
: ELECTRICAL CIRCUITS AND MACHIES PRACTICAL
TEACHING AND SCHEME OF EXAMINATION
No. of weeks per Semester : 16
Instruction
Subject
ELECTRICAL CIRCUITS
AND MACHIES
PRACTICAL
Hours /
Week
Hours /
Semester
6
96
Examination
Assessment marks
Board
Internal
Examination
25
75
Total
100
RATIONALE
Diploma programme
is a Technician Education and therefore skill development is an important
component in the Diploma programmes. To impart practical knowledge to the diploma students, practical
subjects are introduced for every corresponding theory subject. This subject is very much helpful in
understanding circuit connections and study the characteristics of electrical machines.
OBJECTIVES
On completion of this practical subject, the students will be able to
- Make the various circuit connections
-
Practically prove all the carious laws and theorems dealing with current flow
-
Understand the characteristics of electrical machines
-
Test the transformer and machines and find out their characteristic
-
Various speed control methods of electrical motors
61 | P a g e
23034 ELECTRICAL CIRCUITS AND MACHIES PRACTICAL
List of Experiments
(1) Verification of Superposition Theorem with two different DC voltages for a common load
(2) Verification of Thevenin’s Theorem with DC supply
(3) Verification of Maximum Power Transfer Theorem
(4) Construct RLC Circuit for Series Resonance and draw the Frequency versus Impedance curve
(5) Load Test on a single phase Transformer.
(6) Load test on a Three-Phase Transformer.
(7) Predetermination the efficiency and regulation of a single phase transformer by conducting OC and SC
tests.
(8) Find the equivalent circuit constants of a single phase transformer by conducting OC and SC tests.
(9) Connect two single phase transformer for parallel operation by
conducting Polarity test.
(10) No Load and Load characteristics of self-excited DC shunt Generator
(11) Load Characteristics of self-excited DC series Generator
(12) Load Characteristics of separately excited DC shunt Generator
(13) Load Test on DC shunt motor and draw the Performance Curves
(14) Load Test on DC series motor and draw the performance curve
(15) Predetermine the efficiency of DC machine by Swinburn’s test.
(16) Load Test on DC Compound Motor and draw the performance curve
(17) Speed Control of DC shunt motor by
(a) Armature Control Method
(b) Field Control Method
62 | P a g e
ELECTRICAL CIRCUITS AND MACHINES PRACTICAL
Sl.
No
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
LIST OF EQUIPMENTS
DC Shunt Motor 3 / 5 KW (or more) with loading arrangement
DC Series Motor 3 / 5 KW (or more) with loading arrangement
DC Compound Motor 3 / 5 KW (or more) with loading
arrangement
DC Shunt Generator 3 / 5 KW (or more) coupled with Prime
Mover
DC Series Generator 3 / 5 KW (or more) coupled with Prime
Mover
1 phase Transformer 1KVA (or more) 220V/110V
3 phase Transformer 1 KVA (or more) 440V/220V
1 phase Variac 15 Amps
3 phase Variac 15 Amps
Loading Rheostat 220V, 30A, Single phase loading Rheostat
Tachometer Analog type
Tachometer Digital
3 point starter / 4 point starter
Rheostat – various ranges 50Ω-100Ω,1300Ω-600Ω
DC Ammeter- various ranger 0-1,0-2,0-15,0-30 Amps
DC Voltmeter- various ranges 0-75V,0-150V, 0-300V,0-600V
Wattmeter-various ranges LPF 75/150/300/600 Volts
Wattmeter-various ranges UPF 75/150/300/600 Volts
Quantity
Required
1
1
1
1
1
3
1
3
1
2
2
1
6
10
10
10
2
2
63 | P a g e
STATE BOARD OF TECHNICAL EDUCATION AND TRAINING, TAMIL NADU
SYLLABUS FOR DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING
L-SCHEME
Course Name
Subject Code
Semester
Subject Title
:
:
:
:
Diploma in Electrical and Electronics Engineering
24034
III Semester
ELECTRONIC DEVICES AND CIRCUITS PRACTICAL
TEACHING AND SCHEME OF EXAMINATION
No. of weeks per Semester : 16
Instruction
Subject
Electronic Devices
and Circuits Practical
Hours /
Week
Hours /
Semester
6
96
Examination
Assessment marks
Board
Internal
Total
Examination
25
75
100
RATIONALE
Diploma programme is a Technician Education and therefore skill development is an important
component in the Diploma programmes. To impart practical knowledge to the diploma students, practical
subjects are introduced for every corresponding theory subject. This subject is very much helpful in
understanding circuit connections and study the characteristics of electronic devices
.
OBJECTIVES
On completion of this practical subject, the students will be able to
-
Make the various circuit connections involving electronic devices
-
Understand the characteristics of electronic devices
-
Test the performance characteristics of electronic devices
-
Various amplifier, oscillator circuits
64 | P a g e
24034 ELECTRONIC DEVICES AND CIRCUITS PRACTICAL
List of experiments to be conducted
Note: 1. All students may possess his own Multimeter and soldering iron
2. At least 10 experiments should be constructed using breadboard/soldering
3. Different value of components should be given for each batch of students
1.
2.
3.
4.
Identify and check the working condition of passive & active components and switches.
Construct and plot the VI characteristics of PN junction diode and find the cut-in voltage.
Construct and plot the VI characteristics of Zener diode and find the break down voltage.
Construct and plot the regulation characteristics (by varying either load or line voltage) of Half wave and
Full wave rectifier with and without filters
5. Construct and plot the regulation characteristics (by varying either load or line voltage) of Bridge
rectifier with and without filters.
6. Construct and draw the Input and output characteristics of CE Transistor configuration and find its input
& output resistance.
7. Construct and draw the frequency response of RC coupled amplifier and determine the 3-db bandwidth.
8. Construct and plot RC phase shift oscillator and find its frequency of oscillation by varying either R or
C.
9. Construct and plot the drain characteristics of JFET and find its pinch off voltage.
10. Construct and plot the frequency response of Common source amplifier and determine the 3-db
bandwidth.
11. Construct and plot UJT characteristics and find its Ip and Vv.
12. Construct and draw SCR characteristics and find its break over voltage.
13. Construct and plot the DIAC and TRIAC characteristics.
14. Construct a positive and biased diode clipper and draw the output waveforms.
15. Construct diode clampers and draw the output waveforms
16. Construct and draw LDR characteristics.
17. Construct and plot the VI characteristics of Photo transistor.
18. Construct A stable multi vibrator using transistors and draw the output waveform and also find its
frequency.
65 | P a g e
ALLOCATION OF MARKS
CIRCUIT DIAGRAM
:
20
CONNECTION
:
25
EXECUTION & HANDLING OF EQUIPMENT
:
15
OUTPUT / RESULT
:
10
VIVA – VOCE
:
05
___________________________________________________
TOTAL
:
75
EQUIPMENT REQUIRED:
S.NO
Name of the Equipments
Range
Required Nos.
1.
DC Regulated power supply
0-30V, 1A
10
2.
High Voltage Power Supply
0-250V, 1A
2
3.
Signal Generator
1MHz
4
4.
Dual trace CRO
20 MHz / 30MHz
5
5.
Digital Multi meter
-
10
6.
DC Voltmeter (Analog)
Different Range
15
7.
DC Ammeter (Analog)
Different Range
15
66 | P a g e
STATE BOARD OF TECHNICAL EDUCATION AND TRAINING, TAMIL NADU
SYLLABUS FOR DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING
L-SCHEME
Course Name
Subject Code
Semester
Subject Title
:
:
:
:
Diploma in Electrical and Electronics Engineering
23036
V Semester
WORKSHOP PRACTICAL
TEACHING AND SCHEME OF EXAMINATION
No. of weeks per Semester : 16
Instruction
Subject
WORKSHOP
PRACTICAL
Hours /
Week
Hours /
Semester
4
64
Examination
Assessment marks
Board
Internal
Total
Examination
25
75
100
RATIONALE :
Every student must have some knowledge on various machining processes involved in the production.
They must have tools-handling skills. To achieve these knowledge and skills a proper training in a workshop is
essential and therefore this practical subject is introduced.
OBJECTIVES :
On completion of this practical training at workshop, the student shall possess the following
skills
-
Identify the tools required for various jobs
-
To do simple turning, drilling, Knurling processes on a Lathe
-
To make most common types of joints using a welding machine
-
To know the functioning a Gas Welding Machine
67 | P a g e
23036 WORKSHOP PRACTICAL
DETAILED SYLLABUS
Content : Practical
Compulsory Exercises
I Lathe
Tools and Equipments
1) Plain turning
2) Step turning
3) Taper turning
4) Knurling
5) Drilling
6) Thread cutting
II Welding
Tools and Equipments
Making the following joints in MS flats of 6mm thick by arc welding
1) Lap joint
2) Butt joint
3) ‘T’ Fillet
4) ‘L’ Joint
Demonstration of Gas Welding
68 | P a g e
COMMON TO ALL BRANCHES
L - SCHEME
2011 - 2012
COMPUTER APPLICATIONS PRACTICAL
DIRECTORATE OF TECHNICAL EDUCATION
GOVERNMENT OF TAMILNADU
69 | P a g e
L-SCHEME
(Implements from the Academic year 2011-2012 onwards)
Course Name
:
COMMON TO ALL BRANCHES
Subject Code
:
20001
Semester
:
III Semester
Subject Title
:
COMPUTER APPLICATIONS PRACTICAL
TEACHING AND SCHEME OF EXAMINATION:
No of weeks per semester: 16 weeks
Subject Title
COMPUTER
APPLICATIONS
PRACTICAL
Instructions
Hours
Hours
/Week
/Semester
4 Hrs
64 Hrs
Examination
Marks
Internal
Assessme
nt
25
Board
Total
Examination
75
100
Duration
3 Hrs
RATIONALE:
The application of Computer knowledge is essential to the students of all disciplines of Engineering in
addition to their respective branch of study. The Computer Application Practical course facilitates the
necessary knowledge and skills regarding creating, working and maintaining the documents, analyzing the
data with charts manipulation of databases and presentation of documents with audio visual effects in a
computer.
The learning of internet provides students with unprecedented opportunities to obtain information engage in
discussion and liaise with individuals, organizations and groups world-wide. It provides the latest tools and
technologies in helping the students to fetch better employment.
OBJECTIVES:
On completion of the following exercises, the students must be able to

Understand the Windows operating systems

Familiarize and customize the desktop

Use the different facilities available in the word processor

Analyze the data sheet

Create and manipulate the database

Prepare PowerPoint presentation

Understand Internet concepts and usage of e-mail
70 | P a g e
GUIDELINES:

All the eighteen experiments given in the list of experiments should be completed and all the
experiments should included for the end semester practical examination.

The end semester practical examination question paper contains two questions-the first
question from section-I and the second question from section-II. Each question carries 35 marks
and viva voce carries 5 marks.

The computer systems should be 1:2 ratio for practical classes
ALLOCATION OF MARKS
1. Internal Assessment – 25 Marks
DESCRIPTION
MARKS ALLOTTED
Record with Printout
10
Assignment
5
Attendance
5
Model Examination
5
25 MARKS
Total
2. Board Examinations – 75 Marks
Content
Max. Marks
Section I
Section II
Writing steps
15
15
Execution of exercise
15
15
Result with Printout
5
5
Viva voce
Total
5
75 Marks
71 | P a g e
LAB EXERCISES
SECTION – I
WINDOWS
Introduction- History of Windows- screen saver and monitor resolution – Wallpaper setting- Folder manipulation
– properties of a folder – Recycle bin – Short cuts – Sorting Folder – Switching between Application – Copying
in CD/DVD settings – Recording Audio files.
Exercises
1.
a.
Installing screen saver and change the monitor resolution by 1280X960
2.
b.
c.
d.
e.
a.
Setting wall papers
Creating, moving, deleting and renaming a folder
Copy, paste and cut a folder/file
Displaying the properties for a file or folder
Restoring files and folders from Recycle bin
b.
Creating short cuts for folder/file
c.
Finding a file or folder by name
d.
Selecting and moving two or more files/folders using mouse
e.
Sorting folders/files.
a.
Copying files into CD/DVD
b.
Switching between applications
c.
Making the taskbar wider and hiding the taskbar
d.
Recording and saving an audio file
e.
Set/Change the date and time.
3.
72 | P a g e
WORD PROCESSING
Introduction – Menus – Tool bar – Create – Edit – Save – Alignment – Font Size – Formatting – Tables – Fill
Colors – Mail Merge – Page Setup - Preview – Water marking – Header – Footer – Clip art.
Exercises
4. Create the following table and perform the operations given below
ABC PVT. LTD.
Chennai
Production Summary of various Units in every Quarter
Unit
Product - ID
Jan-Mar
Apr-june
July-Sept.
Oct-Dec.
Unit - I
56
234.
50
74
125
Unit - II
142
236
126
175
251
Unit - III
213
541
216
60
43
Unit - IV
125
243
127
250
136
Unit - V
143
152
138
80
45

Arrange Unit name as left align and other columns as right align.

Use doubled Border to the Summary Title and fill with 15% gray colour.

Implement merging and splitting two or more cells

Give alternative fore colour for columns.

Print the above table.
5. Create a standard covering letter and use mail merge to generate the customized letters for applying to a
job in various organizations. Also, create a database and generate labels for the applying organizations.
6. Create a news letter of three pages with two columns text. The first page contains some formatting bullets
and numbers. Set the document background colour and add ‘confidential’ as the watermark. Give the
document a title which should be displayed in the header. The header/ footer of the first page should be
different from other two pages. Also, add author name and date/ time in the header. The footer should have
the page number.
73 | P a g e
SPREADSHEET
Introduction – Menus – Tool bar – Create – Edit – Save – Formatting cells – Chart wizard – Fill Colors –
Creating and using formulas – Sorting – Filtering.
Exercises
7. Create a result sheet containing Candidate's Register No., Name, Marks for six subjects. Calculate the total
and result. The result must be calculated as below and failed candidates should be turned to red.
Result is Distinction if Total >= 70 %
First Class if Total > = 60 % and < 70 %
Second Class if Total >= 50 % and < 60 %
Pass if Total >= 35 % and < 50 %
Fail otherwise
Create a separate table based on class by using auto filter feature.
8. Create a table of records with columns as Name and Donation Amount. Donation amount
should be formatted with two decimal places. There should be at least twenty records in the
table. Create a conditional format to highlight the highest donation with blue colour and
lowest donation with red colour. The table should have a heading.
9. Prepare line, bar and pie chart to illustrate the subject wise performance of the class for any one semester.
SECTION – II
DATABASE
Introduction – Menus – Tool bar – Create – Edit – Save – Data types – Insert – Delete – Update – View –
Sorting and filtering – Queries – Report – Page setup – Print.
Exercises
10. Create Database to maintain at least 10 addresses of your class mates with the following
constraints
 Roll no. should be the primary key.
 Name should be not null
11. Prepare a payroll for employee database of an organization with the following details:
Employee Id, Employee name, Date of Birth, Department and
Designation, Date of appointment, Basic pay, Dearness Allowance,
House Rent Allowance and other deductions if any.
Perform simple queries for different categories.
12. Design a pay slip for a particular employee from the above database.
74 | P a g e
PRESENTATION
Introduction – Menus – Tool bar – Create – Edit – Save – Slide transition – Insert image – Hyper link – Slide
numbers – View slide show with sound – Photo album – Clip art.
Exercises
13. Make a marketing presentation of any consumer product with at least 10 slides. Use
different customized animation effects on pictures and clip art on any four of the ten slides.
14. Create a Presentation on “Communication Skills” with three different slide transitions with
sound effect.
15. Create a photo album in PowerPoint.
INTERNET
Introduction – Browsers – Open a website – Email: Send, receive and delete – Email with Attachments Google
docs – Search Engines – Searching topics
Exercises
16. Create an e-mail id and perform the following

Write an e-mail inviting your friends to your Birthday Party.

Make your own signature and add it to the e-mail message.

Add a word attachment of the venue route

Send the e-mail to at least 5 of your friends.
17. Create a presentation on Google docs. Ask your friend to review it and comment on it. Use
“Discussion” option for your discussions on the presentation.
18. Find out the direction and distance about road travel from Delhi to Agra using the Internet search. Also
make a report of the Map and other details like place to stay and visit at Agra.
75 | P a g e
MODEL QUESTION PAPER
Year / Sem: II / III
Subject: COMPUTER APPLICATIONS PRACTICAL
Answer all the questions
1
Code: 20001
Max.Marks:75
Section - I
Prepare line, bar and pie chart to illustrate the subject wise performance of the class for
any one semester.
2
Section - II
Create an e-mail id and perform the following
 Write an e-mail inviting your friends to your Birthday Party.
 Make your own signature and add it to the e-mail message.

Add a word attachment of the venue route

Send the e-mail to at least 5 of your friends.
LIST OF EQUIPMENTS AND THE QUANTITY REQUIRED FOR A BATCH OF 30 STUDENTS
SOFTWARE REQUIREMENTS
Operating System
Windows XP or Windows Vista or Windows 7 / Linux
Office Package
Microsoft office 2000 or Office 2003 or Office 2007/Open Office
HARDWARE REQUIREMENTS
Desktop Computer System
with latest configuration
30 Nos
Power Backup (UPS)
10 KVA
Laser Printer
3 Nos

SAFETY PRECAUTIONS TO BE FOLLOWED BY STUDENTS
Do not touch, connect or disconnect any plug or cable without teacher’s permission

Don’t attempt to touch any live wires

Systems should be shutdown properly after completion of work
76 | P a g e
REFERENCES
TITLE
AUTHOR
PUBLISHER
Computer Applications
Dr.V.Karthikeyan
Learning Resource Centre,
Practical Manual
Mr.D.Arulselvan
Thiagarajar Polytechnic
Year of
Publication
2012
College, Salem- 636 005
Windows 7 in easy steps
Harshad kotecha
Tata McGrawHill
A First Course in Computer
Sanjay Sasena
Vikas Publications
MS Office – 2003
Ramesh Bangia
Kanna Book Publication
Introduction to Computers with
Alexis Leon &
Tata McGraw-Hill
MS-Office 2000
Mathews Leon
Mastering Microsoft Office
Gini Courter &
2000
Annette Marquis
2003
BPB Publications
2011
2009
2005
2002
1999
77 | P a g e
STATE BOARD OF TECHNICAL EDUCATION AND TRAINING, TAMIL NADU
SYLLABUS FOR DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING
L-SCHEME
Course Name
Subject Code
Semester
: Diploma in Electrical and Electronics Engineering
: 23041
: IV Semester
Subject Title
: Electrical Machines-II
TEACHING AND SCHEME OF EXAMINATION
No. of weeks per Semester : 16
Instruction
Subject
Electrical
Machines-II
Examination
Hours /
Week
Hours / Semester
5
80
Assessment marks
Board
Internal
Examination
25
75
Total
100
TOPICS AND ALLOCATION OF TIME
UNIT
TOPIC
TIME (Hours)
I
ALTERNATORS
14
II
PERFORMANCE OF AN ALTERNATOR
13
III
THREE PHASE INDUCTION MOTOR
15
IV
SINGLE PHASE INDUCTION MOTOR AND SYNCHRONOUS
MOTOR
V
MAINTENANCE OF AC MACHINES
13
REVISION AND TEST
12
TOTAL
13
80
RATIONALE
Electrical machines play vital role in every aspect of our life. They generate Electricity. All the
machineries in industries are driven by electrical motors. Almost all the electrical drives used in the industries
and domestic life are AC machines. Therefore study of AC machines is must for any course in Electrical
Engineering..
78 | P a g e
OBJECTIVES
To understand
 Alternator Principle, Construction, Types, EMF Induced and cooling
 Performance of an Alternator, Testing, Characteristics, parallel operation, Load sharing etc.,
 3-Φ Induction Motor, Principle, Construction, Types, Characteristics and Applications, starting Methods
 1-Φ Motor types, Construction, Characteristics and Applications
 Synchronous Motor, Starting, Construction, Characteristics Applications
 Maintenance of A/C Machines, Induction Motor Maintenance, Transformer Maintenance, Transformer
Earthing, Measurement of Earthing Resistance
79 | P a g e
23041 ELECTRICAL MACHINES-II
DETAILED SYLLABUS
Contents : Theory
Unit
I
Name of the Topic
ALTERNATORS
Hours
Marks
14
15
13
15
Basic Principle - Construction - Salient Pole Type and
Cylinderical Type, Advantages Rotating Type (Stationary Armatur) Damer Winding - Turbo Alternator - Types of Armature Winding Terms Used In Armature Winding - Single Layer, Double Layer, Full
Pitched, Fractional Pitched Winding, Slot Angle, Pitch Factor and
Distribution Factor (Derivation) - Simple Problems.
Effect of Pitch Factor on Harmonics – Advantages of Short
Chorded Winding – Methods of obtaining Sine Wave in Salient Pole
and Non-Salient Pole Alternators – EMF Equation – Problems –
Cooling of Alternator – Different Methods – Advantages of Cooling by
Using Hydrogen and its Merits – Alternator on Load.
PERFORMANCE OF AN ALTERNATOR
II
Causes for Voltage Drop in Alternators – Armature Resistance
– Armature Leakage Reactance – Armature Reaction – Synchronous
Reactance – Vector Diagram of a Loaded Alternator – Voltage
Regulation.
OC and SC Test - Direct Load Test - Determination of Voltage
regulation by Synchronous Impedence Method, Amphere Turn
Method and Zero Power Factor Method -Problems on Synchrouous
Impedence Method and Amphere Turn Method - Load Characteristics
of Alternators -Necessicity of Parallel Operation (Synchoronizing) of
Alternators - Dark
Lamp Method
- Bright
Lamp Method -
Synchroscope Method - Synchronizing Current -Synchronising Power
- Synchronising Torque - Effects of Changing Excitation of Alternators
- Load Sharing of Two Alternators - Alternators Connected to Infinite
Bus Bar.
80 | P a g e
Unit
Name of the Topic
Hours
Marks
15
15
13
15
6
15
THREE PHASE INDUCTION MOTOR:
III
Introduction - Construction - Comparison of Cage and Slipring
Induction Motor - Production of Rotating Magnetic Field in 3φ Principle of operation - Slip - Frequency of Rotor Current - Torque Starting Torque Derivation - Condition for Max Starting Torque - Rotor
EMF and Reactane Under Running Condition - Torque Under Running
Condition (Derivation) Problems - Slip Torque Characteristics Relations B/W Starting Torque and Full Load Torque Development of
Phasor Diagram - No Load & Block D Rotor Test - Development of
Approximate Equivalent Circuit - Circle Diagram - Speed Control - Emf
Method, Pole Changing Method, Rotor Resistane Method and Cading
Method - Starters - DOL, Rotor Resistance Starter, Star Delta Starter,
Auto Transformer Starter - Crawling and Gogging in Induction Motors Applications.
SINGLE PHASE INDUCTION MOTOR:
IV
Double Field Revolving Theory for Single Phase Induction
Motor - Construction, Principle of Working and Application of Split
Phase Motor, Capacitor Type Motors (Capacitor - Start and Capacitor
Start and Run Motor) - Applications.
SYNCHRONOUS MOTOR:
Construction and Principle of Synchronous Motor - Why
Syn.Motor is not Self Starting - Methods of Starting - Effects of
Excitation on Armature Current and Power Factor - Comparison B/W
Synchronous and Induction Motors - V Curve and Inverted Curve Applications of Synchronous Motors.
MAINTENANCE OF AC MACHINES
V
INDUCTION MOTORS: Common Troubles and Their Remedies for
Induction Motor Starters Single Phase Prevention Using Current
Operations - Relay – Installation and Commissioning - Points to be
Followed - Common Induction Motor Troubles and Their Remedies Causes of Noise and Vibration - Care of Bearing - Static Balancing Degreasing - Vacum Impregnation - Varnising - Drying out Process Effect of Unbalanced Supply on the Performance of Induction Motor Periodical Maintenance - Points to be Remembered.
81 | P a g e
V
TRANSFORMERS: Preliminary Inspection - Inspection on Arrival and
7
Before Installation - Measurement of Insulation Resistance - Drying
out - Qualities of a Good Transformer Oil - Transformer Oil Tester Methods of Oil Purification - Centrifugal Purifier - Stream Line Purifier Metasil Filter - Acidity and Acidity Test - Dismandling Procedure for
Distribution Transformer - Voltage Test, Continuity Test and Short
Circuit Test on Distribution Transformer.
Short Circuit Mechanical Forces - Importance of Bucholz Relay
- Bucholz Relay Testing - Bucholz Relay Gas Analyser Construction Gas Analysis by Colour of Gas by Using Gas Analyser - Common
Transformer Troubles and their causes - Transformer Noise - Earthing
- Measurement of Earth Resistance.
TEXT BOOK
Sl.No.
1.
Name of the Book
Electric Machines
2.
Electrical Machines
3.
Operation &
Maintenance Electrical
Equipment
(Volume 1 & Volume 2)
Author
D P Kothari
I J Nagrath
S.K.Batachariya
B.V.S. Rao
Publisher
Tata McGraw Hill
Seventh reprint 2011
Tata Mc Grow Hill Publishing
Company,
New Delhi
Media promoters & Publisher
Private Limited, Bombay
REFERENCE BOOKS
Sl.No.
Name of the Book
1.
A Text Book of
Electrical Technology
2.
3.
Electrical Machines
Theory and Practice
Electrical Machines
Theory and Practice
Author
B.L. Theraja
A.L. Theraja
Publisher
S.Chand & Co.
New Delhi
M.N.Bandyopadhyay
PHI Learning
New Delhi, 2011
M.V. Desh Pande
PHI Learning
New Delhi, 2011
82 | P a g e
MODEL QUESTION PAPER-I
PART- A
Answer any 15 questions out of 20 given questions. One mark for each question.
1. What type of rotor has been used in Turbo alternator?
2. Define fractional Pitched Winding
3. Write any two advantages of Short chorded winding
4. Define slot angle
5. Write the equation of voltage regulation
6. Define synchronous reactance
7. Draw the Load characteristic of an alternator
8. On what condition the switch should be closed by Dark lamp method?
9. What are the types of rotor?
10. What is the use of circle diagram?
11. What are different types of speed control in 3 phase induction motor?
12. Write the Slip Equation
13. What is the name used in the motor having the lowest rating than 1 HP?
14. Write any two applications of split phase induction motor
15. What is the principle of synchronous motor?
16. Write any two methods of starting of synchronous motor
17. What are common troubles in Induction Motor?
18. What are the types of Balancing?
19. Which instrument is used to measure the insulation resistance?
20. What is the B.D.V. value of good transformer oil?
83 | P a g e
PART-B
21.
5X12=60
a) Derive the EMF Equation of an Alternator
(OR)
b) What are the advantages of Hydrogen cooling method
22.
a) Draw neat circuit diagram and briefly explain open circuit and short circuit test.
(OR)
b) An alternator has the following data
1. Number of phases is 3
3. Number of poles is 10
5. Distribution factor is 0.965
7. flux per pole is 0.040 wb
9. Connection is star
2. Number of slots on the Armature is 90
4. Number of conductor per slot is 8
6. full pitched winding
8. speed of alternator is 600 rpm
Determine No Load Terminal Voltage
23.
a) Compare squirrel case and slip ring Induction Motor
(OR)
b) Explain No load and Blocked rotor test
24
a) Explain principle of working Split Phase Induction Motor
(OR)
b) Explain effect of excitation on armature current and power factor
25.
a) What are the causes of noise and vibration of an Induction Motor
(OR)
b) Explain any one method of Oil Purification
84 | P a g e
ELECTRICAL MACHINES-II
MODEL QUESTION PAPER-II
PART- A
Answer any 15 questions out of 20 given questions. One mark for each question.
1. Explain the term Double layer
2. Calculate the distribution factor for 48 slots 4 pole single layer 3 phase winding
3. Define Pitch factor
4. Write the EMF equation of an alternator
5. Write any two causes for voltage drop in alternator
6. What are the types to find voltage regulation in alternator?
7. What are the conditions for parallel operation of two alternators?
8. What is armature leakage reactance?
9. Draw the Slip-Torque characteristic curve
10. Which type of lamination is done by core in squirrel cage rotor?
11. What is the use of pole changing method?
12. Write any two applications of Induction Motor
13. What are the two types winding used in single phase motor?
14. What is the use of centrifugal switch?
15. Which type of Motor is used in Drilling Machine?
16. Write application of synchronous motor
17. Define single phasing
18. State any two installation procedure when an induction motor is installed.
19. What is mean by voltage test?
20. Define earthing
85 | P a g e
PART- B
21.
5X12=60
a) Explain the constructional details of stator and rotor of a salient pole
Alternator.
(OR)
b) Explain the methods adopted to obtain sine wave shape of emf induced in the alternator.
22.
a) Explain Armature reaction of an Alternator
(OR)
b) Briefly explain effect of change in excitation
23
a) Explain Rotating Magnetic Field produced by 3 phase 2 pole system
(OR)
b) Explain Rotor Resistance starter with a neat diagram
24.
a) Explain capacitor Start and Run Motor with a neat diagram
(OR)
b) Explain ‘V’ Curve and Inverted ‘V’ curve
25.
a) Explain continuity test and short circuit on distribution Transformer
(OR)
b) Explain Transformer Earthing and Measurement of Earth Resistance
86 | P a g e
STATE BOARD OF TECHNICAL EDUCATION AND TRAINING, TAMIL NADU
SYLLABUS FOR DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING
L-SCHEME
Course Name
: Diploma in Electrical and Electronics Engineering
Subject Code
: 23042
Semester
: IV Semester
Subject Title
: MEASUREMENTS AND INSTRUMENTS
TEACHING AND SCHEME OF EXAMINATION
No. of weeks per Semester : 16
Instruction
Subject
Measurement and
Hours /
Week
Hours /
Semester
5
80
Examination
Assessment marks
Board
Internal
Examination
25
75
Total
100
Instruments
TOPICS AND ALLOCATION OF TIME
UNIT
I
II
III
IV
V
TOPIC
Classification and Characteristics of Instruments
TIME (Hours)
15
Measurement of current Voltage and Resistance
15
Measurement of Power and Energy
12
Measurement of Power factor Frequency and Phase difference
13
Measurement of L,C and waveforms
13
Revision and Test
12
Total
80
RATIONALE
Measurement is the basic and Primary operation, the result of which is used only to describe the
system and hence treated as an independent operation. Automation of any kind begins with the measurement
of certain system parameters; In fact, industrial growth moves hand in hand with the growth of the
measurement of Science and technology. Therefore it is highly essential for Electrical students to study about
the measurement of various electrical parameters in a system and the construction and working of different
instruments used in measurement of such parameters.
87 | P a g e
OBJECTIVES
 To Define basic measurement terms.
 To learn about various operating forces and effects used in instruments.
 To study the construction and working of Moving coil and Moving Iron instruments, CT and PT,
and electrostatic voltmeter.

To understand the measurement of resistance. using different means.
 To study Single phase and Three phase power measurement using wattmeter.
 To study the construction and working of single phase, three phase energy meter and study about
calibration
 To study the construction and working of Power factor meters, and phase sequence indicators.
 To study about the frequency measurement using different types of frequency meters.
 To learn about the measurement of inductance and capacitance using bridges.
 To study about CRO and it’s applications.
88 | P a g e
23042 MEASUREMENTS AND INSTRUMENTS
DETAILED SYLLABUS
Contents : Theory
Unit
I
Name of the Topic
Classification and Characteristics of Instruments
Hours
Marks
15
15
15
15
12
15
General - Definition of Measurement – functions of Measurement
system (Indicating, Recording and controlling function) – Applications
of measurement systems – classification – Absolute and secondary
instruments – Indicating Recording and Integrating Instruments –
Analog and Digital – Definition of True value, accuracy, precision,
error and error correction – Instrument efficiency – Effects used in
instruments – operating forces – Deflecting, controlling and damping
forces – constructional details of moving system – Types of Supports
– Balancing – Torque weight ratio – control system (spring control and
gravity control) Damping systems – Magnets – pointers and scales.
MEASUREMENT OF CURRENT, VOLTAGE AND RESISTANCE
II
Types of Instruments – construction, working and torque equation of
moving coil, Moving iron, dynamometer type ( Shaded pole)
Instruments – Extension
of instrument range using shunts and
multipliers. (calculation, requirements and simple problems). Tong
tester – Electrostatic
voltmeter – Rectifertype instruments –
Instruments transformers CT and PT – Testing of CT and PT. Errors in
CT and PT – characteristics of CT and PT - Classification of
Resistance – measurement using conventional method – (Ammeter –
voltmeter method) Measurement of low resistance
using Kelvin’s
Bridge ohmmeter – measurement of Medium resistance using
Wheatstone bridge – High resistance using Meggar - earth resistance
– using Earth tester – Multimeters.
MEASUREMENT OF POWER AND ENERGY
III
Power in D.C and A.C Circuits – watt meters in power measurement –
Electrodynamometer type and LPF watt meters – Three phase power
measurement using Three phase wattmeter.
Measurement of Energy in AC circuits – Single phase and Three
phase energy meters construction and operation – Errors and Error
correction – Digital Energy meter – calibration using RSS meter.
and working.
89 | P a g e
Unit
Name of the Topic
Hours
Marks
13
15
13
15
MEASUREMENT OF POWER FACTOR, FREQUENCY AND PHASE
DIFFERENCE
IV
Power factor meters – single phase and Three phase Electro
dynamometer type – construction and working – phase sequence
Indicator – phase difference measurement using synchroscope –
Trivector meter – Merz price maximum demand Indicator.
Frequency measurement – Frequency meter – Weston type – Digital
Frequency meter – (Simplified Block diagram)
MEASUREMENT OF L,C AND WAVEFORMS
V
Measurement of Inductance – Maxwell’s Inductance bridge –
Andersons bridge – Measurement of capacitance using Schering
bridge.
CRO – Block diagram – CRT – Applications - Measurements of
voltage, frequency and phase difference using CRO - Time base
and synchronization – Dural trace CRO – Digital storage oscilloscope
– Block diagram
TEXT BOOK
Title
Author(S)
Publishers
Edition
A Course in Electrical
1. A.K. Sawhney
Dhanpat Rai & Co (P)
1993
and Electronics
2. Puneet Sawhney
Ltd., New Delhi
Measurements and
Instrumentation
REFERENCE BOOKS
S. N Title
1.
Electronic Instrumentation
Author(S)
Publishers
HS Kalsi
Tata Mc Graw Hill Publishing
Edition
2010
Co., Delhi
2.
3.
Modern Electronic
Albert D. Helfrick
Prentic – Hall of India (P) Ltd.,
Instrumentation and
William David
New Delhi
Measurement techniques
Cooper
Electronics and
Dr. S.K. Battachariya
Instrumentation
4.
1. Dr. Renu Vig
S.K. Kataria & Sons, New Delhi
6.
A course in Electrical and Umesh Sinha
Satya Prakashan,
Electronic
New Delhi
Measurement
2010
and Instrumentation
90 | P a g e
MODEL QUESTION - I
Time – Three hours
(Maximum Marks : 75)
[N.B – 1. Answer any 15 questions from Part A Each Question carries 1 mark.
2. Answer all questions in part B choosing either (A) OR (B) in each Questions (OR) choosing either
(A) (B) (OR) (C D) in each questions : Each Question in part B carries 12 Marks.
PART – A
15 X 1 = 15
1. Define Accuracy.
2. Mention the functions of measurement system.
3. What are the two essential requirements of moving systems?
4. Define error.
5. What are the two types of MI instruments?
6. State the use of tong tester.
7. Write the formula to find shunt resistance .
8. State the uses of multi meter.
9. What is meant by creep?
10. Differentiate power and energy.
11. Write the formula to find power in DC circuit and A.C circuit.
12. What is RSS meter?
13. What is maximum demand indicator?
14. What are the three quantities measured by Trivector meter?
15. Write the use of synchros cope.
16. List the types of power factor meters.
17. Name the bridge used for measurement of inductance.
18. What is time base as referred to CRO?
19. Name the fluorescent materials used in CRO screen.
20. List any two applications of CRO.
91 | P a g e
PART – B
21 (A).1
2
Explain spring control used in Instruments.
Explain Eddy current damping in Instruments with neat sketches.
(6)
(6)
(or)
(B).1
List various effects used in Instruments explain any one.
2. Explain three operating forces in Instruments.
(6)
(6)
22 ( A). Explain the construction and working of moving coil instruments
(PMMC Type) with neat sketch. Derive Torque equation.
(12)
(or)
(B) Explain with neat sketch the construction and working of Megger state it’s uses.
(12)
23 (A) Draw and explain the construction and operation of Electro dynamometer type Wattmeter
(12)
(B) Draw and explain the block diagram of Digital energy meter
24 (A) Explain the working of Merz Price MDI with neat diagram.
(12)
( 12)
(or)
(B) Explain the operation of Weston type frequency meter with neat diagram.
(12)
25
(A) 1. Show how inductance is measured using Anderson’s bridge
2.Draw the block diagram of CRO and explain
(6)
(6)
(or)
(B) 1. Show how unknown capacitance is measured using schering bridge
2.Draw the block diagram of Digital storage oscilloscope and explain
(6)
(6)
92 | P a g e
MODEL QUESTION - II
Time – Three hous
(Maximum Marks : 75)
[N.B – 1. Answer any 15 questions from Part A Each Question carries 1 mark.
2. Answer all questions in part B choosing either (A) OR (B) in each Questions (OR) choosing either
(A) (B) (OR) (C D) in each questions : Each Question in part B carries 12 Marks.
PART – A
15 X 1 = 15
1. Define True Value.
2. Define Instrument efficiency.
3. List three types of operating forces.
4. List the types of supports.
5. State the use of shunts.
6. Write the formula to find multiplier resistance.
7. Name the instrument used for measuring high resistance.
8. What are the errors in CT and PT?
9. How creep is overcome in energy meter?
10. State the unit of power and energy.
11. List the four Mechanizing in AC energy meter?
12. What is the purpose of lagplate in energy meter?
13. What is phase sequence indicator?
14. What are the three quantities measured by Trivector meter?
15. List the types of frequency meter.
16. What are the sources of synchronization?
17. Name the bridge used for the measurement of capacitance.
18. What are the applications of CRO?
19. Name the fluorescent material used in CRO screen.
20. State the difference between Dual trace CRO and ordinary CRO.
93 | P a g e
PART B
21 (A) Explain Airfriction damping and Fluid friction damping
(12)
(or)
(B) Explain spring control and gravity control
(12)
22 (A) With neat sketch explain the construction and operation of Attraction type MI
(12)
(or)
(B) With neat sketch explain the construction and working of Earth tester.
23 (A) With neat circuit explain the operation of single phase energy meter
(12)
(or)
(B) With neat sketch explain the working of LPF wattmeter
(12)
24 (A) With neat sketch explain the construction and operation of power factor meter.
(12)
(or)
(B) Draw the block diagram of Digital frequency meter and explain.
(12)
25 (A) 1. Draw and explain the working of CRT
(6)
2. Draw the circuit of Schering bridge and write the formula to find unknown
capacitance
(6)
(or)
( B).1.Draw the block diagram of Dual trace CRO and explain
(6)
2. Draw the circuit of Anderson bridge and write the formula to find unknown
inductance.
(6)
94 | P a g e
STATE BOARD OF TECHNICAL EDUCATION AND TRAINING, TAMIL NADU
SYLLABUS FOR DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING
L-SCHEME
Course Name
Subject Code
Semester
Subject Title
:
:
:
:
Diploma in Electrical and Electronics Engineering
24043
IV Semester
Digital Electronics
TEACHING AND SCHEME OF EXAMINATION
No. of weeks per Semester : 16
Instruction
Subject
Hours /
Week
Hours /
Semester
Digital Electronics
5
80
Examination
Assessment marks
Board
Internal
Total
Examination
25
75
100
TOPICS AND ALLOCATION OF TIME
UNIT
TOPIC
TIME (Hours)
I
Number System, Boolean Algebra, Logic Gates and Digital
Logic Families
14
II
Combinational Logic
14
III
Sequential Logic
14
IV
Memory Devices
13
V
Microprocessor - 8085
13
Revision - Test
12
TOTAL
80
RATIONALE
Today’s world is of Digital Electronics. Digital concept is fast and very much accurate compared with
analog systems. Study of Electronics means study of Digital Electronics. All the control, computing and
measurement activities are made of Digital Electronics. This subject is introduced to impart a fair knowledge of
digital circuits and systems.
95 | P a g e
OBJECTIVES

To understand various Number System.

To understand basic Boolean postulates and laws.

To understand the De-Morgan’s theorem.

To understand the concept of Karnaugh Map.

To Learn about logic Gates.

To Study about Boolean techniques.

To learn the different digital logic families

To learn arithmetic circuits-adder/subtractor, BCD adder.

To understand the encoder/decoder & MUX / DEMUX

To understand the concept of parity Generator, and checkers

To understand various types of flip-flops.

To understand various types of counters.

To understand various modes of shift registers.

To understand the concept of RAM & ROM and its types.

To understand the history and need of Microprocessor.

To understand the internal architecture details of 8085 Microprocessor.

To know the instruction set of 8085.

To draw the timing diagrams for typical instructions

To understand Interrupt Structure of 8085
96 | P a g e
24043 DIGITAL ELECTRONICS
DETAILED SYLLABUS
Contents : Theory
Unit
Name of the Topic
Hours
Marks
14
15
14
15
14
15
NUMBER SYSTEM AND BOOLEAN ALGEBRA
I
Binary, Octal, Decimal, Hexadecimal - Conversion from
one to another. Binary codes – BCD code, Gray code, Excess
3code.Boolean Algebra – Boolean postulates and laws. De-Morgan’s
theorem, Simplification of Boolean expressions using Karnaugh
map(up to 4-variables-pairs,quad,octets)- Don’t care conditions and
constructing the logic circuits for the Boolean expressions
LOGIC GATES AND DIGITAL LOGIC FAMILIES: GATES – AND,
OR, NOT, NAND, NOR, EX-OR, EX-NOR. Implementation of logic
functions using gates, Realization of gates using universal gates.
Simplification of expression using Boolean techniques, Boolean
expression for outputs. Digital logic families – TTL, CMOS, Logics and
their characteristics, comparison and applications, Tristate gate.
COMBINATIONAL CIRCUITS:
II
Arithmetic circuits. Binary – Addition, subtraction, 1’s and 2’s
complement. Signed binary numbers. Half Adder and Full Adder/ half
Subtractor and Full Subtractor. Encoder, Decoder- 3 to 8 decoder,
BCD to seven segment decoder. Multiplexer/Demultiplexer.BCD
adder, parity checker and generator.
– Interrupts (types & Priorities).
SEQUENITAL CIRCUITS
III
FLIP-FLOPS – SR, JK, T, D, JK- MS FF, Triggering of FF – edge &
level. COUNTERS – Asynchronous/ripple counter, Decade counter,
mod3, mod7 counter, Up – Down counter (4 bit), Synchronous
counter, Johnson counter, Ring counter, Single digit BCD counter.
REGISTERS - 4-bit shift register- Serial IN Serial OUT, Serial IN
parallel OUT, Parallel IN Serial OUT, Parallel IN Parallel OUT.
97 | P a g e
Unit
Name of the Topic
Hours
Marks
13
15
13
15
MEMORY DEVICES
IV
Classification of memories, RAM organization - Address Lines and
Memory Size, Read/write operations, Static RAM - Bipolar RAM cell,
Dynamic RAM, SD RAM, DDR RAM. Read only memory – ROM
organization, Expanding memory, PROM, EPROM, and
EEPROM.Flash memory.
MICROPROCESSOR – 8085
V
Evolution of microprocessor,8085 – Architecture, Instruction sets,
Addressing modes, memory mapped I/O and I/O mapped I/O and its
Comparison, Machine cycle – Opcode fetch, memory read, memory
write, I/O read, I/O write. Instruction cycle (Timing diagram) for LDA,
MOV r1, r2 instructions
TEXT BOOK
Sl.No.
1
2
Name of the Book
Principles of digital
electronics
Microprocessor
architecture, programming
and application
Author
K.Meena
Publisher
PHI – 2011
Wiley eastern limited.
Ramesh S. Gaonkar –
REFERENCE BOOKS
Sl.No.
Name of the Book
Digital principles &
Applications
Author
Albert Paul Malvino &
Donald P.Leach –
2
Digital Electronics
William H.Gothmann –.
3
Modern Digital Electronics
4
Introduction to
Microprocessor
1
R.P. Jain – TMH. Roger
Publisher
TMH.
Prentice Hall of India
McGraw – Hill – 1994.
L. Tokheim Macmillan
ADITYA P MATHUR
Tata- McGraw-Hill publishing
Company Limited
98 | P a g e
24043 DIGITAL ELECTRONICS
MODEL QUESTION PAPER - I
PART – A
15 X 1 = 15
Answer ANY FIFTEEN questions - ALL questions carry EQUAL marks
1. Convert (28)10 in to binary.
2. Construct the logic circuits AB + AB.
3. Define fan IN and fan OUT.
4. Simplify the expression by using Boolean techniques AB + AB +AB + AB
5. Define arithmetic circuits.
6. State MUX & DE- MUX.
7. Draw pattern of seven segment LED display.
8. Calculate the 1’s complement of 01101110.
9. Define Flip Flop.
10. State level triggering.
11. Difference between Synchronous & Asynchronous
12. What are modes available in shift register?
13. Mention the types of memory.
14. Differentiate ROM & PROM
15. Expand DDR RAM.
16. How many 8K memory is needed for creating 16K memory?
17. Define microprocessor.
18. What is a POP instruction?
19. State machine cycle.
20. Define Interrupt
PART – B
(5 X 12 = 60)
Answer all Questions
21 A i) Realization of all gates using NAND gates
[8]
ii) Convert (88)8 in to hexadecimal
[4]
OR
B i) State the De-Morgan’s theorem
[4]
ii) Simplify the following function using K-maps ∑ 0, 2,4,6,8,10,12,14
[8]
22 A i) Explain the operation of Half Subtractor
ii) Explain 3 to 8 decoder
[6]
[6]
OR
B i) State and explain parity checker and generator
ii) Write short notes on signed binary numbers.
23 A i) Explain Asynchronous counter
ii) Explain RS-FF
[8]
[4]
[8]
[4]
OR
B i) Explain JK-MSFF
ii) Draw & explain 4-bit shift register PISO
[6]
[6]
24 A i) Explain bipolar RAM cell
ii) Explain anti fuse technology
[8]
[4]
OR
B) Explain ROM organization
25 A) Explain the architecture of 8085 with neat diagram
OR
B) Draw and explain timing diagram for LDA address instruction
[12]
[12]
[12]
99 | P a g e
24043 DIGITAL ELECTRONICS
MODEL QUESTION PAPER - II
PART – A
15 X 1 = 15
ANSWER ANY FIFTEEN QUESTIONS- ALL question carry EQUAL marks
1. Convert (175)8 in to decimal.
2. State De- Morgan’s theorem.
3. Define Tristate gate
4. Draw the logic diagram for NOR gate.
5. Specify the 2’s complement of 11100111 of binary number.
6. How many address lines are in 1 to 16 de multiplexer
7. Define Propagation delay.
8. What is the basic gate of CMOS logic
9. Define the term Toggling condition
10. What is Mod-N counter?
11. Define Ring counter
12. Define combinational circuit
13. What is volatile memory
14. What important component is used for fabricating bipolar RAM Cell.
15. Define dynamic Ram
16. Expand EPROM.
17. What is program counter?
18. State PSW register
19. write any four addressing modes
20. write control & status signals
PART – B
Answer all Questions
21 A i) Convert the decimal number 75.82 to its equivalent octal, hexadecimal &
Binary numbers
ii) Constructing the logic diagram for this Boolean expression is
ABC + ABC+ABC+ABC+ABC
OR
B i) Simplify the given logic function by using Karnaugh simulate its
output F= ∑ (0,1,2,3,4,5,8,9,10,11,12)
ii) Explain don’t care condition
(05 X 12 = 60)
[8]
[4]
[8]
[4]
22 A i) With the logic diagram explain Full Adder
ii) With the diagram explain TTL NAND gate and its merits & De-merits
OR
B i) Explain the working operation of multiplexer with logic diagram
ii) With the diagram explain CMOS basic gates
[4]
[8]
23 A i) Draw the logic diagram of RS-FF and explain its operation
ii) With the logic diagram explain the operation of down counter
OR
c) Explain the Johnson Counter
d) Explain parallel IN parallel OUT shift registers
[6]
[6]
24 A i) Explain the working operation of Read/write operation
ii) Explain flash memory
OR
B i) Explain ROM organization
ii) Difference between Static & dynamic RAM
[8]
[4]
[6]
[6]
[8]
[4]
[8]
[4]
100 | P a g e
25 A i) Classification of instruction set based on their function with example
ii) Explain Interrupt and it’s various types
OR
B i) Draw the Timing diagram of MOV r1,r2
ii) Difference between memory mapped I/O and I/O mapped I/O
[6]
[6]
[8]
[4]
101 | P a g e
STATE BOARD OF TECHNICAL EDUCATION AND TRAINING, TAMIL NADU
SYLLABUS FOR DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING
L-SCHEME
Course Name
: Diploma in Electrical and Electronics Engineering
Subject Code
: 23044
Semester
: IV Semester
Subject Title
: TRANSDUCERS AND SIGNAL CONDITIONERS
TEACHING AND SCHEME OF EXAMINATION
No. of weeks per Semester : 16
Instruction
Subject
Transducers and Signal
conditioners
Hours /
Week
Hours /
Semester
4
64
Examination
Assessment marks
Board
Internal
Examination
25
75
Total
100
TOPICS AND ALLOCATION OF TIME
UNIT
I
II
III
IV
V
TOPIC
TIME (Hours)
Classification and Sensing elements
10
Passive Transducers
10
Active Transducers
10
Operational amplifiers.
11
Signal conditioners in Industrial Instrumentation
11
Revision and Test
12
Total
64
RATIONALE
Sensors and transducers are used in automation in construction, domestic appliances industries,
transport, space exploration, defence equipment, health services and other applications. Transducers have
achieved
substantial accuracy and control in Industrial automation, Transducers lie at the heart of
instrumentation; Hence it becomes imperative to study about the principles and applications of various types
of transducers in a single volume in Diploma level.
102 | P a g e
OBJECTIVES
 To understand the necessity and advantages of transducer.
 To learn about different types of transducers.
 To study the principle of working of resistive type passive transducers and it’s applications.
 To learn the operation and applications of capacitive and inductive transducer.
 To learn about various active transducers and their applications.
 To understand the concept of Digital encoding transducers.
 To know the concept of signal conditioning using op.amp
 To study the characteristics and various applications of op.amp.
 To understand the use of signal conditioners in Instrumentation.
 To learn about the selected applications of op.amp in Industrial Instrumentation.
103 | P a g e
23044 TRANSDUERS AND SIGNAL CONDITIONERS
DETAILED SYLLABUS
Contents : Theory
Unit
Name of the Topic
Hours
Marks
10
15
10
15
10
15
11
15
CLASSIFICATION AND SENSING ELEMENTS
I
General – Definition - Necessity - Types - classification based
on the principle of operation - Active and passive - Primary and
Secondary - Examples in each - Advantages - Primary sensing
elements - Bourden tubes. Bellows – Load cells – Thermistors –
Types – construction and operation of Metal Resistance thermometer
– Digital encoding transducer.
Passive Transducers
II
Resistive Transducer - Strain Gauge - construction and
working of Strain gauge - Strain gauge in measurement of
displacement - Capacitive transducer and its applications – Liquid
level measurement using capacitive transducers
- Inductive
transducer - Basic structure - proximity sensor - Measurement of
pressure using inductive transducer - Construction and operation of
LVDT, RVDT.
Active Transducers
III
Thermocouple - construction and principle - Measurement of
angular velocity using Tachogenerator - Piezoelectric transducers principle - measurement of pressure and vibrations - Hall effect
Transducer - photo voltaic transducers (solar cell) - photo conductive
transducer Measurement of radiation using Giger Muller tube.
IV
OPERATIONAL AMPLIFIERS
Block diagram - DC, AC signal conditioning - operational
amplifiers IC 741 – Pindetails – Important terms – characteristics of
Ideal op amp - inverting and Non inverting mode –Gain - Applications
of op. amps - Adders, Subtractor, Scale charger, integrator,
Differentiator, Voltage to current converter -
current to voltage
converters - Differential amplifiers - Comparators (inverting and non
inverting)
104 | P a g e
Unit
Name of the Topic
Hours
Marks
11
15
SIGNAL CONDITIONERS IN INDUSTRIAL
INSTRUMENTATION
V
Operational amplifier with capacitive transducer - Operational
amplifier as Instrumentation amplifiers – Bridge amplifier - active
filters using op.amp - LPF, HPF – LPF as integrator - HPF as
differentiator - Clipper, Clamper using op.amp. Successive
Approximation ADC - R - 2R ladder network DAC - wein bridge
oscillator using op.amp - op. amp as Zero crossing Detector.
TEXT BOOK
Sl.No.
Title
Transducers
and
Author
DVS Murty
Publisher
Edition
2009
PHI
Instrumentation
REFERENCE BOOKS
S. No Title
Author(S)
Publishers
Edition
D. Patranabis
PHI
2011
1.
Sensor and Transducers
2.
A Course in Electrical and
1. A.K. Sawhney
Dhanpat Rai & 1993
Electronics Measurements and
2. Puneet Sawhney
Co (P) Ltd., New
Instrumentation.
Delhi
3.
Measurement and Instrumentation
Arun. K
PHI
2010
4.
Operational Amplifiers and Linear
Robert F. Coughlin
PHI
1992
Integrated Circuits
Frederick F. Driscoll
Op. amp & Linear Integrated
Ramakant. A. Gayakwad
PHI
1992
5
Circuits
105 | P a g e
MODEL QUESTION-1
Time – Three hous
Maximum Marks : 75
[N.B – 1. Answer any 15 questions from Part A Each Question carries 1 mark.
2. Answer all questions in part B choosing either (A) OR (B) in each Questions (OR) choosing either
(A) (B) (OR) (C D) in each question. Each Question in part B carries 12 Marks.
PART – A
15 X 1 = 15
1. Define transducer
2. Mention the types of transducers.
3. Give an example for Active transducer.
4. Give two examples of Primary sensing elements
5. What is thermistor?
6. Expand LVDT and RVDT?
7. What is proximity sensor?
8. State any two applications of capacitive transducer
9. Distinguish between piezoelectric transducer and photo electric transducer.
10. Which device is used for the measurement of angular velocity?
11. Mention the principle of solar cell.
12. What do you mean by thermocouple?
13. Define signal conditioning.
14. List any two characteristics of ideal op. amp
15. What are the two types of comparators?
16. Define CMRR.
17. List different filters using op.amp.
18. Name the filter circuit that is used as an integrator.
19. What is clamper?
20. What do you mean by zero crossing detector.
106 | P a g e
PART – B
21
(A) 1. Briefly explain the classification of transducers. Give example in each.
2. Write short notes on Bourden tubes and bellows.
(6)
(6)
(or)
(B)1. State the necessity and advantages of transducers .
2.
22
(6)
Discuss about Thermistors.
(6)
(A) With neat sketches explain the operation of LVDT. List it’s uses.
(12)
(or)
(B) With neat sketches explain the operation of RVDT ; State it’s applications.
23
(12)
(A) Explain the construction and working of Piezo electric transducer with
neat sketch.
(12)
(or)
(B) Explain the construction and working of Geiger muller tube in radiation
measurement.
24
(12)
(A) 1. Explain the inverting mode operation of op. amp and derive equation for gain.
2. Show how op. amp can be used as an adder.
(6)
(6)
(or)
(B) 1. Draw and explain voltage to current converter using op. amp.
2. Show how op. amp is used as differential amplifier
25
.
(6)
(6)
(A) With neat circuit explain the operation of Successive approximation A/D
converter using op.amp.
(12)
(or)
(B) With neat circuit and waveforms explain the operation of Zero crossing
Detector using op. amp.
(12)
107 | P a g e
MODEL QUESTION 2
Time – Three hous
Maximum Marks : 75
[N.B – 1. Answer any 15 questions from Part A Each Question carries 1 mark.
2. Answer all questions in part B choosing either (A) OR (B) in each Questions (OR) choosing either
(A) (B) (OR) (C D) in each question. Each Question in part B carries 12 Marks.
PART – A
15 X 1 = 15
1. Give an example of passive transducer.
2. State any two advantages of transducer .
3. Define thermistor.
4. What are the types of thermistor.
5. What is proximity transducer?
6. State any two applications of strain gauge.
7. State the uses of LVDT.
8. Mention any one application of capacitive transducer.
9. State the principle of photo conductive transducer.
10. What is the basic principle of piezo electric transducer?
11. Name the devices used for measurement of Raidation
12. What do you understand by Hall effect?
13. Define slew rate.
14. Which IC is used as op. amp?
15. What is the value of bandwidth for ideal op.amp?
16. Write the formula to find output voltage of adder circuit using op.amp.
17. How many op. amps are used in Instrumentation amplifier?
18. What is clipper?
19. Which filter is used as differentiator?
20. What are the elements in Bridge amplifier?
108 | P a g e
PART – B
21 (A) With neat sketch, explain the construction and working of Metal Resistance
Thermometer
(12)
(or)
(B) With neat sketch, explain the operation of Digital encoding transducer.
(12)
22 (A) What is an Inductive transducer? Discuss how it is used in the pressure
measurement.
(12)
(or)
(B) What is the principle of capacitive transducers? How it is used in liquid level
measurement.
(12)
23 (A) 1.Write short notes on thermocouple
(6)
2.Draw and explain the measurement of angular velocity using tacho generator
(6)
(or)
(B) 1. Write short notes on photo voltaic transducer.
2. Draw and explain radiation measurement using Geiger muller tube.
(6)
(6)
24 (A) 1. Explain the non inverting mode operation of op. amp. Derive equation for gain
(6)
2. Show how op.amp can be used as an integrator.
(6)
(or)
(B) 1. Explain any one comparator using op.amp with circuit and waveforms
(6)
2. Show how op.amp can be used as a differentiator.
(6)
25 (A) With neat circuit diagram explain instrumentation amplifier using op. amp
(12)
(or)
(B) Draw the circuit of R. 2R ladder network DAC and explain its operation
(12)
109 | P a g e
STATE BOARD OF TECHNICAL EDUCATION AND TRAINING, TAMIL NADU
SYLLABUS FOR DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING
L-SCHEME
Course Name
: Diploma in Electrical and Electronics Engineering
Subject Code
: 23045
Semester
: IV Semester
Subject Title
: Electrical Machines and Instrumentation Practical
TEACHING AND SCHEME OF EXAMINATION
No. of weeks per Semester : 16
Instruction
Subject
Electrical Machines and
Instrumentation Practical
Hours /
Week
Hours /
Semester
6
96
Examination
Assessment marks
Board
Internal
Examination
25
75
Total
100
RATIONALE
Diploma programme
is a Technician Education and therefore skill development is an important
component in the Diploma programmes. To impart practical knowledge to the diploma students, practical
subjects are introduced for every corresponding theory subject. This subject is very much helpful in
understanding circuit connections and study the characteristics of electrical machines.
OBJECTIVES
On completion of this practical subject, the students will be able to
- Understand the characteristics of AC machines
-
Various speed control methods of electrical motors
-
Use various measuring instruments
-
Make various electrical measurements
-
Measure non-electrical measurements
110 | P a g e
23045 ELECTRICAL MACHINES AND INSTRUMENTATION PRACTICAL
DETAILED SYLLABUS
Contents : Practical
List of Experiments
(1) Predetermine the regulation of alternator by synchronous impedance method at (a) UPF
(b) 0.8 p.f lead (c) 0.8 p.f lag.
(2) Load Test on Three Phase Alternator
(3) Synchronizing of two alternators by Lamp method
(4)
Conduct Load Test on a single phase induction motor and plot the performance curve.
(5) Conduct Load Test on a three phase slip-ring induction motor and plot the performance curve.
(6) Find the equivalent circuit constants of a three phase induction motor by conducting No-Load and
Blocked-Rotor tests
(7) Draw the circle diagram for a three phase induction motor suitable by conducting tests and find the
efficiency at different loads.
(8) Demonstrate that power factor of an induction motor load is improved by connecting capacitor bank.
(9) Calibration of given Ammeter and Voltmeter and plot the error graph
(10)
Calibration of given Wattmeter and plot the error graph
(11)
Calibration of Three phase energy meter using Wattmeter and Stop Clock
(12) Find the winding resistance of alternator winding resistance using Wheatstone bridge.
(13)
Find the value of unknown capacitor using Schering’s bridge.
(14)
Find the value of unknown inductance BY Anderson Bridge.
(15)
Displacement measurement using LVDT.
(16)
Measurement of earth-resistance by using earth-test kit.
111 | P a g e
Scheme of Evaluation
Sl
No.
Activity of the Candidate
Maximum
Marks to be
awarded
1
Drawing Correct Diagram and writing Details of the
Components/Equipments/Machines used
15
2
Making the correct circuit connections
15
3
Conducting the Experiment
4
-
Following the correct procedure
-
Taking the appropriate readings
-
Following the appropriate safety procedure
25
Tabulation of Readings
Interpretation of Results
15
Graphical Representation (if required)
5
Viva-voce (Questions related to the given experiments
only)
5
Total Marks (External)
75
112 | P a g e
ELECTRICAL MACHINES AND INSTRUMENTATION PRACTICAL
Sl.
No.
LIST OF EQUIPMENTS
Quantity
Required
1
Synchronous Motor 3 / 5 HP (or more)
1
2
3 Phase Squirrel cage Induction motor 5 HP 440V/20A
1
3
1 phase Induction motor 1 HP 230V/0.5A
1
4
3 phase Slip ring Induction motor 5HP 440V/20A
1
5
AC Ammeter (0-2)A
2
6
AC Ammeter (0-15)A
2
7
AC Ammeter (0-10)A
2
8
AC Ammeter (0-5)A
5
9
DC Ammeter(0-2)A
3
10
AC Voltmeter (0-300)V
3
11
AC Voltmeter(0-600)V
6
12
Wattmeter (0-24)V,5A,10A
3
13
Wattmeter (0-60)V,5A,10A
7
14
Wattmeter (0-750)W wattmeter multi range 1500W10A,3000W-
1
15
Wheatstone bridge
2
16
Anderson Bridge
2
17
Schering Bridge
2
18
1 Phase Energy meter Calibration Induction Type
1
19
3 Phase Energy meter Calibration Induction Type
1
20
Earth Resistance Kit
2
21
LVDT Kit to measure Displacement
2
22
Load Cell calibration various Load arrangement
2
23
Alternator 1 phase
1
24
Alternator 3 phase
1
25
Tachometer Analog type
2
26
Tachometer Digital
1
27
Synchroscope
1
28
Frequency meter
2
29
PF meter (paver factor meter)
2
30
31
Single phase R.S.S meter
3 phase R.S.S meter
1
1
113 | P a g e
STATE BOARD OF TECHNICAL EDUCATION AND TRAINING, TAMIL NADU
SYLLABUS FOR DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING
L-SCHEME
Course Name
Subject Code
Semester
Subject Title
:
:
:
:
Diploma in Electrical and Electronics Engineering
24046
IV Semester
INTERGERATED CIRCUITS PRACTICAL
TEACHING AND SCHEME OF EXAMINATION
No. of weeks per Semester : 16
Instruction
Subject
INTERGERATED CIRCUITS
PRACTICAL
Hours /
Week
Hours /
Semester
6
96
Examination
Assessment marks
Board
Internal
Total
Examination
25
75
100
RATIONALE
Diploma programme
is a Technician Education and therefore skill development is an important
component in the Diploma programmes. To impart practical knowledge to the diploma students, practical
subjects are introduced for every corresponding theory subject. This subject is very much helpful in
understanding working of some important Linear and Digital Integrated Circuits.
OBJECTIVES
On completion of this practical subject, the students will be able to
-
Understand the functioning of Logic Gates
-
Make use of various Digital ICs
-
Understand the functioning of Counter circuits
-
Understand the functioning of Analog to Digital and Digital to Analog Converters
114 | P a g e
24046 INTERGERATED CIRCUITS PRACTICAL
DETAILED SYLLABUS
Contents : Pracical
1. Verification of truth table of OR, AND, NOT, NOR, NAND, EX-OR gates.
2.
Realization of basic gates using NAND & NOR gates.
3. Realization of logic circuit for a given Boolean expression..
4. Half adder, Full adder using discrete IC’s.
5. Half subtractor, full subtractor using discrete IC’s.
6. Construction and verification of truth table for Decoder/Encoder.
7. Multiplexer/De-multiplexer using discrete IC’s.
8. Parity generator and checker using discrete IC’s.
9. Construction and verification of truth table for RS, D, T, JK, flip-flop.
10. 4- bit ripple counter using FF
11. Single digit counter using 7490, 7475, 7447 & seven segment LED.
12. Construct and test digital data generator using shift registers.
13. Inverting Amplifier and Non inverting Amplifier with AC signal using OPAMP.
14. Integrator and Differentiator using Opamp
15. Summing amplifier & Differential amplifier using Opamp.
16. Astable and Monostable multivibrator using IC 555.
17. IC voltage regulator using IC 78XX, IC 79XX and LM317 for
1.2 v to 12v.
18. DAC using R-2R network, Binary weighted resistor network.
115 | P a g e
Scheme of Evaluation
Sl No.
Activity of the Candidate
Maximum
Marks to be
awarded
1
Drawing Correct Diagram and writing Details of the
Components/Equipments/Machines used
15
2
Making the correct circuit connections
15
3
Conducting the Experiment
4
-
Following the correct procedure
-
Taking the appropriate readings
-
Following the appropriate safety procedure
25
Tabulation of Readings
Interpretation of Results
15
Graphical Representation (if required)
5
Viva-voce (Questions related to the given experiments
only)
5
Total Marks (External)
75
116 | P a g e
DIPLOMA IN ENGINEERING/TECHNOLOGY
L - SCHEME
2011 - 2012
COMMUNICATION AND LIFE SKILLS PRACTICAL
DIRECTORATE OF TECHNICAL EDUCATION
GOVERNMENT OF TAMILNADU
117 | P a g e
L-SCHEME
(Implemented from the Academic year 2011-2012 onwards)
Course Name : DIPLOMA IN ENGINEERING/TECHNOLOGY
Subject Code : 20002
Semester
: IV or V SEMESTER
Subject Title : COMMUNICATION AND LIFE SKILLS PRACTICAL
TEACHING AND SCHEME OF EXAMINATION:
No. of Weeks per Semester: 16 Weeks
Examination
Instructions
Subject Title
Marks
Hours/
Week
COMMUNICATION
4 Hours
AND LIFE SKILLS
PRACTICAL
Hours/
Semester
Internal
Board
assessment Examination
64 Hours
25
75
Duration
Total
100
3 Hours
Topics and Allocation of Hours:
Sl.
No.
Section
No. of Hours
1
Part-A:Monodic Communication
16
2
Part-B:Dyadic Communication
16
3
Part-C:Professional Communication
16
4
Part-D:Life Skills
16
Total
64
118 | P a g e
RATIONALE
Nowadays, effective and errorfree communication is a basic need. Communication through English is
the order of the day for entry and survival in any corporate. Training in Monodic communication (one man
communication) Dyadic communication (a pair communication) and Professional communication (may be
Monodic, Dyadic or Group communication) is attempted through these practical modules. One can improve
one’s communication skills by enriching one’s vocabulary ,particularly active vocabulary and standard everyday
expressions and using them in various contexts. Practice alone, both on the campus and outside the campus,
can help a learner to grow proficient in the art of Communication.
Language is the most commonly used and effective medium of self-expression in all spheres of human life personal, social and professional. A student must have a fair knowledge of English language use and various
communicative functions. He/she must be able to pursue the present course of study and handle the future
jobs in industry. The objective of the course is to assist the diploma holders to acquire proficiency in monodic,
dyadic and professional communication skills and selective but most important life skills. At the end of the
course, the student will be able to communicate his ideas fearfree and errorfree, in social and professional
spheres of life and imbibe life skills.
SPECIFIC INSTRUCTIONAL OBJECTIVES
Communication is crucial as it influences every aspect of one’s personal development. Having a sound
grounding in reading and writing techniques allows a student to progress on to higher level literacy skills. Many
students struggle because their basic decoding is so inaccurate that advanced comprehension is difficult for
them. Because of their poor exposure and poor use of English language in various spheres of life they suffer
proper communication. They also tend to be ‘afraid’ of words and in turn they are not able to develop their
personal vocabulary. In otherwords, without solid literacy skills, the student’s prospects and life chances are
limited. It is a fact that Communication skills and Life Skills shapes one’s personality.
119 | P a g e
MONODIC COMMUNICATION
The student is able to:
1. Practise using departmental words and terminology in sentences.
2. Prepare and perform oral presentations.
3. Introduce oneself and others.
4. Deliver welcome address and vote of thanks.
5. Compere a program.
6. Describe the visuals.
7. Take notes, answer very short questions.
8. Comprehend an auditory/oral passage.
DYADIC COMMUNICATION
The student is able to:
1. Adopt various communicative functions.
2. Prepare and perform a dialogue.
3. Adopt the basics of telephone etiquette.
PROFESSIONAL COMMUNICAITON
The student is able to:
1. Prepare a resume.
2. Take part in a group discussion.
3. Communicate through body language.
4. Adopt the interview skills with professional presence.
5. Perform mock interview.
LIFE SKILLS
The student is able to:
1. Prepare for and deal with change.
2. Adopt motivation, goal-setting and self-esteem.
3. Adopt Teamwork skills.
4. Adopt Time management.
5. Adopt Emotional intelligence skills.
6. Assert Positively.
7. Adopt Interview etiquette.
8. Plan career.
9. Understand Strength, weakness (long term, short term).
120 | P a g e
LEARNING STRUCTURE
To enable the students to practise monodic communication, dyadic communication professional
communication and imbibe life skills through various modes of practical learning and assignments.
PROCEDURE
PRINCIPLES
CONCEPTS
FACTS
MONODIC
DYADIC
PROFESSIONAL
COMMUNICATION COMMUNICATION COMMUNICATION
Identifying various
platforms
Sharing opinions,
feeling, with or
without audience.
Oral presentation,
art of introduction,
enhancing the list
of active
vocabulary,
listening skills, note
taking skills,
describing skills.
Exposure to
dialogue situations,
exposure to
telephone
etiquette.
Understanding the
basic
communicative
functions.
Conversing with a
neighbour
Audio tapes,
compact disk,
mikes, various
contexts.
Exposure to
resume writing,
group discussion,
interviews.
LIFE SKILLS
Exposure to
selective life
skills/problem
solving skills.
Writing resume,
performing group
discussion, facing
interviews.
Imbibe and
practise the
selective life skills.
FAQ, Resume
models, Audio
tapes, compact
disk, mikes.
Stories,
anecdotes,
incidences, case
studies and
assignments.
121 | P a g e
COMMUNICATION AND LIFE SKILLS PRACTICAL
SYLLABUS
PART A: MONODIC COMMUNICATION
(16 hours/ periods)
a) Vocabulary enrichment: recording important words and terminology alphabetically connected to the
concerned department – playing antakshari.
b) Introducing oneself: using greeting phrases – opening and closing with courteous notes – supplying
personal information.
c) Introducing others: using greeting phrases – opening and closing with courteous notes – with
information.
d) Welcome address, vote of thanks and compering a program: keeping notes – and personal
information of the dignitaries – concerned.
e) Making an Oral Presentation: Preparing the presentation - Talking about people, animals and places
– Keywords technique and the rehearsal – Presentation outline – Performing the presentation –
answering the questions.
f) Oral description: a picture from an English magazine – a visual ad – a natural scene.
g) Auditory/Oral comprehension – small passage – small dialogue -very short story – note - taking skill.
h) News Caption: giving caption for a news item from an English daily.
PART B: DYADIC COMMUNICATION: COMMUNICATIVE FUNCTIONS (16 hours/ periods)
a) Dialogue: preparing and performing - Meeting people, exchanging greetings and taking leave – Giving
instructions and seeking clarifications – Thanking someone and responding to thanks - minimum seven
exchanges including the courteous openings and closings – ten common contexts.
b) Telephonic dialogue: telephonic etiquette - Answering the telephone and asking for someone –
Dealing with a wrong number – Taking and leaving messages – Making enquiries on the phoneordering for supply-bookings and arrangements-handling the complaints – calling for appointment.
PART C: PROFESSIONAL COMMUNICATION
(16 hours/ periods)
a) Group Discussion - Taking part in a Group Discussion – focus on team spirit.
b) Interview - Frequently asked questions in an interview – Mock interview - Body language.
c) Resume Writing – components.
PART D: LIFE SKILLS
a) Preparing for and dealing with change.
b) Motivation, goal-setting and self-esteem.
c) Teamwork skills.
d) Time management
e) Emotional intelligence skills
f) Career planning.
g) Assertive Skills.
h) Interview skills.
(16 hours/ periods)
122 | P a g e
References :1)
2)
3)
4)
Malcolm Goodale, Professional Presentations with VCD, Cambridge University Press
B.Jean Naterop and Rod Revell, Telephoning in English with 2 Audio CDs Cambridge University Press
Priyadarshi Patnaik, Group Discussion and Interview Skills with VCD, Cambridge University Press
Kamalesh Sadanand and Susheela Punitha, Spoken English: A Foundation Course for Speakers of
Tamil, Orient BlackSwan.
5) S. P. Dhanavel, English and Soft Skills, Orient BlackSwan
6) Robert Sherfield and et al, Developing Soft Skills, Pearson Education.
7) Poly Skills: A course in communication skills and Life skills, Cambridge University Press.
8) English and Communication Skills for Students of science and Engineering by S.P.Dhanavel , Orient
BlackSwan.
9) Speak Well, edited by Kandula Nirupa Rani, Jayashree and Indira,OrientBlackSwan.
10) Fifty ways to improve your telephoning and teleconferencing Skills by Ken Taylor -
123 | P a g e
COMMUNICATION AND LIFE SKILLS PRACTICAL
Model Question Paper – 1
Time: 3 hrs
Max Marks: 75
PART –A (35 Marks)
Monodic Communication:
1. Introduce one self
(5)
2. Use the mentioned words orally in sentence
(2x2 ½ =5)
3. Prepare and present a welcome address for your college annual day programme. (5)
4. Listen to the passage read out from the English daily of the week of the examination. Please note: No
prerecorded passage
(10)
5. Write a news caption for the passage given from the English daily.
(5)
6. a) Describe orally the visual or the picture found in the English daily of the week of the examination.
(5)
(Or)
b) Make an oral presentation about an animal.
PART – B (15 Marks)
Dyadic Communication:
1. Play antakshari of five pairs of departmental words with your partner.
2. Prepare and perform a dialogue with your partner on the given situation
(5)
(10)
(minimum seven exchanges)
Or
Prepare and perform a telephonic dialogue on a flight booking.
(minimum seven exchanges)
PART-C (25 Marks)
Professional Communication:
1. Form a group of six members and perform a discussion on the given theme.
(10)
2.Imagine you are V.Gokulraj ,a diploma holder. Prepare a resume for the post of supervisor in Oberoi
computers Ltd.Chennai.
(10)
Professional appearance: Interview etiquette-dress code- Body language
(5)
124 | P a g e
COMMUNICATION AND LIFE SKILLS PRACTICAL
Model Question Paper - 2
Time: 3 hrs
Max Marks: 75
PART –A (35 Marks)
Monodic Communication:
1. Introduce your friend S.Mohan an a excutive engineer to a group of audience.
2. Use the mentioned words in sentence orally.
(2x2 ½ =5)
3. Prepare and present a Vote of thanks in your college sports day programme.
4.
(5)
Listen to the passage read out from the English daily of the week of the examination. Please note: No
prerecorded passage
5.
(5)
(10)
Write a news caption for the passage given from the English daily.
(5)
6. a) Describe the visual or the picture found in the English daily of the week of the conduct of the
examination.
(5)
(Or)
b) Make an oral presentation about your polytechnic college.
PART – B (15 Marks)
Dyadic Communication:
1. Play antakshari of five pairs of your departmental words with your partner.
2. Prepare and perform a dialogue with your partner on the given situation
(5)
(10)
(minimum seven exchanges)
(Or)
Prepare and perform a telephonic dialogue on ordering the supply of a computer
(minimum seven exchanges)
PART-C (25 Marks)
Professional Communication:
1.Form a group of six members and perform a discussion on the given theme.
(10)
2. Imagine you are M.Kishore a diploma holder. Prepare a resume for the post of operating engineer in REC
Electricals Ltd.Madurai.
( 10)
3. Professional appearance: Interview etiquette-dress code- Body language
(5)
NOTES OF GUIDANCE
Role of the media:
To equip a learner with vocabulary, particularly active vocabulary and standard everyday expressions
125 | P a g e
,using English dailies and watching selective English T.V. channels both in the classroom and outside the
classroom is focused. Such a provision is recommended for the students to establish familiarity with the
English dailies and selective English T.V. channels.
Minimum two copies of two English dailies in the laboratory room (students can bring their own copies
also).Minimum two systems with net connection for information collection in the laboratory itself.
Synopsis of the news item:
During every lab work day, students must choose a news item from the English daily or weekly or
monthly, and write a synopsis of the chosen news item, in not more than five lines. The news item should be
pasted on the left page and synopsis on the right page (the chosen news item should not be politically, socially
or communally controversial). Students should exercise care in choosing the news items. Teachers have to
advise them on this aspect. This can be done outside the class hours also but every record exercise should
begin with the synopsis of news item of the date of the lab session.
For example, first lab exercise namely departmental vocabulary and antakshari is performed on
15/12/2011. The student should choose a news item from any English daily of 15/10/2011 and record the
synopsis on the right page (in not more than 5 lines) under the caption Synopsis of the news item of the
day/date 15/10/2011.There is no harm in repeating or copying the lines form the passage. The essence of the
passage should be there. The cutout news item for presenting the synopsis should be pasted on the left page
of the record notebook.
This is to be done with interest for developing one’s personality. This work does not carry any marks
but without which the record exercise should not be valued. This is the precondition for valuing the record
exercise. Each record exercise follows the synopsis of the chosen news item.
At the bottom of the synopsis, the student should record the dictionary meaning of atleast one
strange word found in the chosen news item. At the end of every month, a minimum of 10 Headlines of 10
different days i.e. one Headline a day from anyone English daily should be pasted on the right or left page of
the Record Note Book. (This work does not carry marks but this is the precondition for marking the record
exercises)
External examiner, before signing the record notebook, should verify whether the Newspaper works
were recorded/pasted in the record notebook.
Verbal communication in any language begins with sounds in isolation, union and word formation.
Learning everyday words and expressions is the primary factor. Grammar comes next. One can enrich one’s
every day vocabulary by reading English magazines and listening to or watching an English channel on
television. So an English laboratory should be equipped with a minimum of two copies of two English dailies
and English weeklies or monthlies.
Watching English channels helps the students improve their vocabulary and expressions. If there is a
provision, students may be permitted to watch selective, mind corruption free English channels (sports,
education, news, animal channels and so on) for at least 15 min. during the English lab sessions. This will
serve as motivation for the students and help them shed their inhibition.
126 | P a g e
What is antakshari? (Polar word game)
This game can be played on the stage by two or three students using the departmental words. Suppose Mr. A
belongs to Dept.of Electrical and Electronics and he says his departmental word ‘ ampere ‘Mr. B has to supply
a word beginning with the ending letter of Mr. A’s word. The word ampere ends with the letter ‘ e’ so Mr. B
says ‘ electrical ‘.Mr. A has to continue with the letter ‘ l ’. Like that five pairs of words are to be spoken.(Letter
ending only, not sound ending. ) Suppose departmental words are not available in some English letters like
‘ x ‘ ‘ y ‘ ‘ z ‘ the students may be permitted to use common words.
ANTAKASHARI ( Five Exchanges )
(Dept. of Mechanical Engineering.)
EXAMPLE:
Mr. A
1. Governor
2. Rack
3. Nut
4. Lathe
5. Naphtha
Mr. B
Reservoir
Kelvin
Tool
Emission
Anvil
127 | P a g e
Introducing oneself:
One is not expected to introduce one’s family. One or two sentences on his family will do. Care must be taken
to include general proficiency, titles and merits, awards possessing or secured in academic activities like paper
presentation, participation in inter polytechnic or intra polytechnic competitions, sports activity, forums like
NCC,NSS, hobby, ambition, strengths and weaknesses.
Introducing others – merits – credentials—one or two points on his family.
Vote of thanks / Welcome address.No doubt it should be all-covering but Focus should be on the important
persons/invitees/chief guest and the message of the speaker.
Description (pictures from English weekly/daily) Pictures may be displayed through projector or Magazine
cuttings may be used. Just five lines on the picture will do.
Auditory/oral comprehension: A Passage from any English daily of the week of the examination is to be read
out for two to three minutes in the end examination. Display of recorded passages can be used as an addition
in the class room. The use of pre-recorded passage discouraged in the end examination.
Oral presentation: Students must be encouraged to use English magazines and internet for collecting
information on the topic, noting keywords and use them in their presentation in his own language. One must be
able to talk extempore for 2 min on any topic, given a time of two minutes for organizing his/her thoughts. The
topics can be kept simple and general (current events of interest like sporting event for headline of the day). It
must be totally an oral activity without the aid of any other media.
News Caption: A news item ,without heading,of not more than ten lines from an English daily of the week of
the conduct of Examination is to be given. The caption may be a passive construction or a catchy phrase on
the given news item.
Face to face dialogue: Selective nine situations / topics are to be performed in the class room. (Minimum
seven exchanges with courteous openings and closings).
Telephonic dialogue: Selective seven situations to be given. (Minimum seven exchanges).
Resume writing: cover letter—the components of a resume like sender’s address, recipient’s address, career
objective to be explained.
Group Discussion: Topics of common interest, avoiding controversial ones, are to be given for discussion. A
group may consist of six members.
Students should be exposed to 44 phonemes (sounds) in English language and their symbols.
There shall be no question on this end examination.
128 | P a g e
COMMUNICATION SKILLS EXERCISES:1. Departmental Vocabulary alphabetically (using it in sentence, antakshari).Using the words orally in
sentences
2. Introducing oneself and others
3. Vote of thanks / Welcome address
4. Description (pictures from English weekly/daily)
5. Auditory/oral comprehension
6.
Oral presentation
7. Face to face dialogue
8. Telephonic dialogue
9. Resume writing
10. Group Discussion
Communication Skills:
Ten Marks for each exercise leading to a maximum of hundred marks in total.
The total marks to be reduced to an average of ten marks.
Texts of the performed activities to be recorded in the Record Note book. Synopsis of the news item of the
day/date is mandatory at the beginning of every record exercise.
Life Skills:
i) Preparing for and dealing with change.
j) Motivation, goal-setting and self-esteem.
k) Teamwork skills.
l) Time management
m) Emotional intelligence skills
n) Career planning.
o) Assertive Skills.
p) Interview skills.
Life skills are to be intensely inculcated through lectures, quotes, anecdotes and case studies. An excellent
awareness of the eight essential life skills is to be created through continuous internal assessment. Five
assignments in these topics are to be recorded in the record note book.
 A minimum of five assignments on five different topics.
 Each assignment to be assessed for twenty marks.
 The total marks to be reduced to an average of ten marks.
 All the topics to be covered in the lab.
129 | P a g e
TIME MANAGEMENT IN THE END EXAM.

For written part 30 min
Written part of the examination should be the first / beginning of the examination, monadic oral exam to
start during the written exam.

Written Part exercises:
auditory / oral comprehension.

Resume writing.

Giving news caption for the passage.

During the written examination time of 30 minutes, monodic communication examination may also take
place simultaneously.
MONODIC COMMUNICATION ( ONE MAN COMMUNICATION)
Oral part – 75 min.
Both internal and external examiners (simultaneously) are to examine the students.
Five minutes for each student. 15 students for external & 15 students for internal and within 75 minutes both
internal and external examiners complete the monadic communication exam.
DYADIC COMMUNICATION ( ONE PAIR COMMUNICATION)
 5 min for each pair.

15 pairs in total. 8 pairs for external and 7 pairs for internal examiner. (8x5=40 min) within 40 min both
internal and external examiners completes the dyadic communication exam.

The students examined by the external for monadic exam are to be examined by the internal for dyadic and
vice versa.
PROFESSIONAL COMMUNICATION
 30 min for group discussion.

6 members in each group.

5 min for discussion for each group.

Both internal and external examiners to supervise / examine simultaneously one group each.

Within fifteen minutes all the six groups to be examined.
130 | P a g e
LABORATORY REQUIREMENT
1. An echo-free room for housing a minimum of sixty students.
2. Necessary furniture and comfortable chairs
3. Public Address System.
4. A minimum of two Computers with internet access, with Audio for Listening Skill and related software
packages.
5. A minimum of Two different English dailies.
6. A minimum of one standard Tamil daily.
7. Headphone units – 30 Nos. with one control unit with a facility to play and record in Computer.
8. A minimum of Three Mikes with and without cords.
9. Colour Television (minimum size – 29”).
10. DVD/VCD Player with Home Theatre speakers.
11. Clip Chart, white board ,smart board.
12. Projector.
13. video camera.
14. Printer,Xerox,scanner machines desirable.
15. English Weeklies/monthlies/journals like ELTOI desirable.
16. Frozen thoughts –monthly journal for Lifeskills by Mr.Rangarajan / www.frozenthoughts.com
Mark Pattern
End Examination –
75 Marks
Monodic Communication – 35 Marks
Dyadic Communication –
15 Marks
Profession Communication – 20 Marks
Professional Appearance – 5 Marks
Internal Assessment
Communication skills Record Notebook
Life skills assignments
Attendance
25 Marks
10 Marks
10 Marks
5 Marks
131 | P a g e
COMMUNICATION AND LIFE SKILLS PRACTICAL
Allocation & Statement of Marks
Duration:3Hrs.
Name of the Candidate
Reg. No.
A. Monodic communication : 35 Marks
Introduction
(5 mks)
Use in
sentence
(5 mks)
Vote of
thanks /
welcome
address
(5 mks)
Description/
Auditory/Oral
Oral
comprehension
presentation
(10 mks)
(5 mks)
News
caption
(5 mks)
Total
(35 mks)
B. Dyadic communication: 15 Marks
Antakshari
(5 mks)
Dialogue
(10 mks)
Total
(15 mks)
C. Professional communication: 20 Marks
Group Discussion
(10 mks)
Resume
(10 mks)
Total
(20 mks)
D. Internal Assessment: 25 Marks
Record Notebook
Commn.skills (10 mks)
Assignments
Life Skills (10 mks)
E. Professional Appearance:
Total :
Internal examiner
Attendance
(5 mks)
Total
(25 mks)
/5 Marks
/100 Marks
External examiner
132 | P a g e
FACE TO FACE DIALOGUE TOPICS
1. Between Friends (On any acceptable topic).
2. Between a conductor and a passenger.
3. Between a doctor and a patient.
4. Between a Shopkeeper and a Buyer.
5. Between a Teacher and a Student.
6. Between a tourist and a guide.
7. In a Bank.
8 At a railway enquiry counter.
9. Lodging a complaint.
Note: A resourceful teacher may add a few more topics of common interest.
TELEPHONIC DIALOGUE TOPICS
1. Placing an order.
2. Making Enquiries.
3. Fixing appointments
4. Making a hotel reservation.
5. Dealing with a wrong number.
6. Travel arrangements.
7. Handling complaints.
133 | P a g e
MECHANICAL DEPARTMENTAL VOCABULARY FOR ANTAKASHARI AND USING IN
SENTENCES
EXAMPLE:
A:
1. Anvil – made of cast Iron used in foundry shop.
2. Axle – A metal rod that connects two wheels.
3. Alloy – alloy is a mixture of two or more metals.
4. Addendum – distance between top of gear teeth and pitch circle.
5. Annealing – It is a heat treatment process for softening the metals.
B:
1. Bearing – it is which supports the shaft.
2. Bolt – it is a type of fastener. Combined with screw.
3. Brake – it is used to halt an auto mobile vehicle.
4. Beed – steel wiring used in tyres to withstand stress.
5. Baffles – it is used to reduce noise, filter dust particles in auto mobile.
C:
1. Cam – it is a lobe like structure, which actuates the valve.
2. Crown – the slope like structure in the piston.
3. Calipers’ – they are measuring instruments.
4. Clutch – it is used to disengage and engage the fly wheel and main shaft.
5. Chamber – it is the distance between vertical line and tyre center line.
D:
1. Damper – it is a type of shock absorber, reduces the vibration.
2. Differential – it controls the speed of rotating wheel in the rear axis.
3. Diaphram – it is used to separate two layers.
4. Detonation – it is the continuous knocking with serious effect on cylinder head.
E:
1. Evaporator – it absorbs heat to vapourise liquid into air
2. Engine-the place where fuel is burnt and heat energy is converted. mechanical energy
3. Electrolyte-it is a liquid substance which is used to transfer current or any metal particle.
4. Emission-the release of burnt gas from automobile.
5. Elongation-the increase of dimension due to application of load.
F:
1. Filter-which is used to remove dust particles.
2. Friction-the resistance on wear occur due to rubbing of two metals.
3. Fly wheel-the wheel like structure used to balance the uneven weight in engine.
4. Fuel – it is a substance that burns with oxygen in the air.
5. Factor of safety - it is the safety limit after which the material will break down.
G:
1. Governor – it is used to control the flow of fuel according to load.
134 | P a g e
2. Gear – it is used to transmit power from one place to another.
3. Generator – it is used to generate power.
4. Gasket – it prevents the leakage and to provide sealing effect.
5. Goggle – the protective device used to guard the eyes.
H:
1. Hub – it is the center part of wheel.
2. Hammer – it is used to beat sheet metals.
3. Hydraulics – it deals with fluid for various function.
4. Hatching – it is used to highlight the parts in drawings.
5. Head stock – it is the main function unit of lathe.
I:
1. Ignition – it is the function by which fuel is burnt.
2. Injection – it is the process of spraying fuel into engine block.
3. Impeller – it is which converts kinetic energy into pressure energy.
4. Inventory – it is the place where raw materials are stored.
5. Idling – it is the condition at which the automobile engine at stationary state.
J:
1. Jig – it guides the tool and hold the job.
2. Jaw – it is teeth like structure used to hold work pieces.
3. Jog mode – Jog mode is used to give manual feed for each axis continuously.
4. Junk – it is known as waste material in industry.
5. Journal – It is a type of bearing.
K:
1. Keyway – it is a specific path made in shaft to joint parts.
2. Knocking – the sound produced due to Burning of uncompleted burnt fuel.
3. Kelvin – it is the degree of hotness.
4. Knurling – it is the process of lathe done to work piece to improve the gripness.
5. Knuckle joint – It is a type of joint used to connect two work pieces.
L:
1. Lubrication – process of reducing heat by applying cooling substances.
2. Layering – it is used to draw parts of a machine separately and combine together.
3. Lever – it is a supported arm used to engage gears.
4. Lathe – it is the father of machines used in turning operations.
5. Lead screw - it is the screw through which the carriage travels.
M:
1. Manometer – it is used to measure the pressure of fluids.
2. Milling – process of removing metal from work piece by rotating cutting tool.
3. Manifold – it is a passage made for flow of fuel in automobile.
4. Moulding – it is the process of passing hot liquid metal into mould made through sand.
5. Module – it is a metric standard used to identify or specify pitch.
135 | P a g e
N:
1. Nozzle – it is used to reduce the pressure and increases the velocity.
2. Nut – it is a type of fastener used to couple with screw.
3. Nomenclature – Dimensional property of specific part on component is notified by
nomenclature.
4. Neck – Distance between drills body and shank.
5. Naphtha – kind of inflammable oil.
O:
1. Orthography – it is the three dimensional view of an object.
2. Ovality – Elliptical shape of piston.
3. Over haul – it is the complete checking and servicing of a machine or vehicle.
4. Optimum temperature – suitable temperature condition for certain process on working.
5. Offset – it is by which the axis of certain job is defined.
P:
1. Pinion – a small gear is called pinion.
2. Pulley – A cylindrical object used to connect belt for transmitting power.
3. Pump – it is which transfers fluid from one place to another.
4. Piston – it is which transfer power from combustion chamber to connecting rod.
5. Port – it is the opening in two stroke engine for movement of fuel and exhaust.
Q:
1. Quilt – it is used to give automatic feed in machines.
2. Quality control – it is an inspection processl.
R:
1. Reaming – it is the operation used to finish inner surface of a hole.
2. Reservoir – it is used to store fuel or any liquid.
3. Rack – it is a spur gear with infinite radius.
4. Retainer – it is used to bring back to the original position.
5. Radiator – it is the part used in automobile for cooling water.
S:
1. Shackle – it is a rod connected to leaf spring.
2. Spring – it is a circular rod which compresses on load and retracts when released.
3. Strainer – it is used to remove micro particles.
4. Shock absorber - it is used to reduce vibration and give cushioning effect.
5. Suspension- it is used to absorb shocks and give cushioning effect.
T:
1. Tail stock – it is used in lathe to support the job.
2. Tool – it is a metal.removal device.
3. Torque – it is the twisting load given on a work piece.
4. Trimming – it s the process of removing excess metal .
5. Turning – it is a metal cutting process used to reduce diameter.
136 | P a g e
U:
1. Universal joint-it is used to connect propeller shaft and differential unit.
2. Universal divider head- it is used to index various components.
V:
1. Valve – valve is the part used in automobile for flow of fuel and exhaust to cylinder head.
2. Vent hole – it is the hole made in casting for ventilation purpose.
3. Vulcanizing – it is the process of adding carbon to rubber.
4. Vibration – it is caused due to the movement in an uneven surface.
5. Velocity-rate of change of displacement.
W:
1. Wheel-it is a circular object which rotates and moves the vehicle.
2. Wiper-it is used in wind shield to remove water droplets.
3. Work piece-it is the material in which various processes are done to make a component.
4. Wage-it is the amount paid to a worker for his work.
5. Washer-washer is a component used in fasteners to reduce gap.
Y:
1. Yawing-the turning of wind mill towards direction of air is called yawing.
2. Yoke-it is which holds the other end of spindle in milling machine.
3. Yield stress-It is the stress above which it will attain the breaking stress.
4. Young’s modulus-it is the ratio between stress and strain.
Pl.note: Suppose departmental words are not available in some English letters like
‘ x ‘ ‘ y ‘ ‘ z ‘ the students may be permitted to use common words. This is only an example.
Another student of Mechanical Engineering can have different sets of words under each letter of
the English alphabet.Like that there may be variety of sets. The most important point is that One
is not supposed to murmur but speak the words intelligibly in an audible manner. Swallowing the
words will deprive a student of winning a selection in an interview. In the same way, students of
other Departments can have different sets of words of their departments under each letter of the
English alphabet.
137 | P a g e
TELEPHONE LANGUAGE AND PHRASES IN ENGLISH
Answering the phone
" Good morning/afternoon/evening, Madras Enterprises, Premila speaking.”
" Who's calling, please?”
Introducing yourself
" This is Raghavan speaking.”
" Hello, this is Raghavan from Speak International.”
Asking for someone
" Could I speak to Mr. Raman, please?”
" I'd like to speak to Mr Raman, please.”
" Could you put me through to Mr Raman, please?”
" Could I speak to someone who …”
Explaining
" I'm afraid Mr. Raman isn't in at the moment”.
" I'm sorry, he's in a meeting at the moment.”
" I'm afraid he's on another line at the moment.”
" Putting someone on hold”
" Just a moment, please.”
" Could you hold the line, please?”
" Hold the line, please.”
Problems
" I'm sorry, I don't understand. Could you repeat that, please?”
" I'm sorry, I can't hear you very well. Could you speak up a little, please?”
" I'm afraid you've got the wrong number.”
" I've tried to get through several times but it's always engaged.”
" Could you spell that, please?”
Putting someone through
" One moment, please. I'll see if Mr Raman is available.”
" I'll put you through.”
" I'll connect you.”
" I'm connecting you now”.
Taking a message
" Can I take a message?”
" Would you like to leave a message?”
" Can I give him/her a message?”
" I'll tell Mr. Raman that you called”
" I'll ask him/her to call you as soon as possible.”
" Could you please leave your number? I shall ask him to get back to you.”
Pl.note: The above ones are samples only. A resourceful teacher may add more.
138 | P a g e
DAY-TO-DAY EXPRESSIONS ( For dialogues )
COMMON PARLANCE
How are you?
Fine. Thank you.
How are you?
Me too.
How do you do?
How do you do?
It’s good to see you again.
Glad to meet you.
Thank you.
Thanks very much.
Welcome.
Hello! How is everything?
Just fine. Thanks. What’s new?
Nothing much.
I’m pleased to meet you.
The pleasure is mine.
I’ve heard Paul speak about you often.
Only good things! I hope.
Look who’s here!
Are you surprised to see me?
Sure. I thought you were in Chennai.
I was, but I got back yesterday.
Sorry, May I help you?
So kind of you.
That’s so nice of you.
Nice talking to you.
Nice meeting you.
It’s getting late, and I’ve to go now.
Certainly. Come back soon.
In that case, I’ll be seeing you.
Fine.
Thank you.
Welcome
So long. See you later.
Take care. Bye.
Good-bye.
Could you tell me the time, please?
Certainly. It is 5.35 p.m.
My watch says 5.40 p.m.
Then your watch is five minutes fast.
Excuse me. Can you tell me the way to …?
May I come in?
How is the weather today?
It is pleasant. / sunny / rainy / warm /windy.
I am sorry, Can you repeat what you have said.
139 | P a g e
I am sorry, I can’t hear you properly.
It is not audible. Can you please repeat it?
Beg your pardon; I don’t get your words clearly.
How do you feel now?
Are you ok?
I am fine. And how about you?
I am fine. Thank you.
GROUP DISCUSSION
Let me begin with introducing this concept,
Well, this is to convey that
At the outset, I am here to convey
At this juncture, I would like to
May I intervene?
May I add?
Kindly permit me to say
If you could allow me to say
Let me add a few words
Let me first answer your question
Can you please allow me to convey
Excuse me; I would like to add further
On behalf of my colleagues,
On their behalf
Firstly/ secondly/ thirdly.
Finally/ conclusively/ at the end / Summing up
Eventually/ in the event of
In spite of / otherwise/ although/ though
Please Note:
 The above ones are samples only.

A resourceful teacher may add more.

A potential student may exhibit variety.
140 | P a g e
STATE BOARD OF TECHNICAL EDUCATION AND TRAINING, TAMIL NADU
SYLLABUS FOR DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING
L-SCHEME
Course Name
Subject Code
Semester
Subject Title
:
:
:
:
Diploma in Electrical and Electronics Engineering
23051
V Semester
POWER SYSTEM-I
TEACHING AND SCHEME OF EXAMINATION
No. of weeks per Semester : 16
Instruction
Subject
Hours /
Week
Hours /
Semester
Power System - I
5
80
Examination
Assessment marks
Board
Internal
Total
Examination
25
75
100
TOPICS AND ALLOCATION OF TIME
UNIT
TOPIC
TIME (Hours)
I
Generation of Electric Power
15
II
A.C. Transmission and HVDC Transmission
14
III
Line Insulators and Underground Cables
13
IV
Circuit Breakers and Over Voltage Protection
13
V
Protective Relays and Grounding
13
Revision & Test
12
TOTAL
80
RATIONALE
Energy is the basic necessity for the economic development of a country. As a matter of fact,
there is a close relationship between the energy used per person and his standard of living. The
greater the per capita consumption of energy in a country, the higher is the standard of living of its
people. The modern society is so much dependent upon the use of electrical energy that it has
become a part of our life.
So to have adequate knowledge in Electrical power generation and
transmission it becomes necessary to include this subject.
141 | P a g e
OBJECTIVES
To Understand

Conventional power plants-Layout and choice of site

Renewable energy sources and power generation

Grid system and Economics of power generation

A.C Transmission-Supports, conductors, Effects, Regulation and Efficiency

H.V.D.C Transmission

Line Insulators and underground cables

Circuit breakers, Fuses and Lightning arresters

Protective relays and grounding.
142 | P a g e
23051 POWER SYSTEM - I
DETAILED SYLLABUS
Contents : Theory
Unit
Name of the Topic
Hours
Marks
15
15
14
15
GENERATION OF ELECTRICAL POWER
I
Introduction-Conventional methods of power generations - schematic
arrangement and choice of site for Hydel,thermal,Nuclear power
plants-Advantages and Disadvantages-comparison of these power
plants.- Principle and types of co generation.
Schematic arrangement of Diesel, Gas, geothermal, pumped storage
schemes-Advantages and DisadvantagesRenewable Energy sources- Basic principle of
Geothermal, Ocean, Biomass and Tidal Energy sources.
Solar,Wind,
Grid or Inter connected system-Advantages of Inter connected
systems- Load Transfer through Inter connector-Load curves and
Load duration curves-connected load-Average load-Maximum
Demand
Factor- Plant
capacity factor-Load factor and its
significance-Diversity factor-Load sharing between base load and
peakload plants-Load Despatching centre stand-alone system
II
Fuel Cells - design and principle of operation – types of fuel cells –
comparison of fuel cells – efficiency – advantages - applications
A.C TRANSMISSION AND HVDC TRANSMISSION
A.C. Transmission:
Introduction-Typical Layout of A.C. Power supply scheme various
system of power Transmission-Advantages and Disadvantages of A.C
Transmission- High Transmission Voltage-Advantages-Economic
choice of Transmission voltage-Elements of a Transmission LineEconomic choice of conductor size-Kelvin's Law- Its limitation-over
Head Line-Conductor materials and their properties-Line supports-its
properties-Types of supports and their applications-spacing between
conductors-length of span-Sag in over head lines-Calculation of SagWhen the supports are at equal and unequal levels- Effect of wind and
ice loading over the line conductor Problems-constants of a
Transmission line- Transposition of Transmission lines-Skin EffectFerranti Effect-Corona- formation and coronaloss-Factors affecting
corona-Advantages and Disadvantages-Classification of O.H.
Transmission linesperformance of single
phase
short
Transmission line - voltage regulation and Transmission EfficiencyProblems.
143 | P a g e
Unit
Name of the Topic
Hours
Marks
13
15
13
15
H.V.D.C Transmission:
II
Advantages and Disadvantages of D.C Transmission-Layout Scheme
and principle of High Voltage D.C Transmission-D.C link
configurations (monopolar, Bipolar and Homopolar)-HVDC convertor
Station(Schematic diagaram only)-Comparision between constant
current and constant voltage HVDC systems.
LINE INSULATORS AND UNDERGROUND CABLES
III
Line Insulators:
Introduction-Line Insulator materials-Properties of Insulators-Typescauses of failure of Insulators-Testing of Insulators-Potential
Distribution over suspension Insulator string-String Efficiency methods of improving string Efficiency- problems.
Underground cables:
Introduction-Advantages and requirement of cables-construction- of a
three core cable-Insulating materials for cables- properties of
Insulating materials used in cables-classification of cables-cables for
three phase service-construction of Belted cable, screnned cable,
Pressure cables-Laying of under ground cables-Direct laying,Draw-insystem, solid system- Advantages and Disadvantages-Grading of
cables- capacitance grading, Inter sheath grading (No derivation and
Problems)-cable faults-O.C, S.C and Earth faults- Murray loop test for
fault location.
CIRCUIT BREAKERS AND OVER VOLTAGE PROTECTION
IV
Switch gear-Essential features of Switch gear-faults in a Power
system (definition only).
Circuit Breakers
Basic principle of circuit Breaker -Arc Phenomenon-methods of Arc
extinction-Arc voltage -Restriking voltage and recovery voltage-Rate
of rise
of
restriking voltage-current chopping-Interruption of
capacitive current -resistance switching-C.B
ratings - Breaking
capacity, making capacity, short time rating - Auto reclosing in
circuit Breakers - Classification of C.B.S - construction, working
principle , merits and Demerits of Air Blast C.B, SF6 and vacuum
C.B-Maintenance schedule for circuit breakers.
D.C breaking -Problems of D.C breaking-Schematic for HVDC C.Bproducing current zero.
Fuses-Desirable characteristics-Fuse Element materials-current rating
of fuse elements-fusing current-Cut off current-L.V fuses-Rewirable
fuse, HRC cartridge fuse, HRC fuse with tripping device -H.V. fusescartridge type, liquid type and metal clad-fuses-Comparision of fuse
and circuit breaker.
144 | P a g e
Unit
Name of the Topic
Over voltage protection:
IV
Hours
Marks
13
15
Voltage surge- causes of over voltage-Lightning-Types of lightning
strokes -Direct stroke, Indirect stroke-Harmful Effects of lightning Protection against lightning-Earthing screen, Overhead
ground
wires, Lightning arrestersExpulsion
type, Gapless arrester.
PROTECTIVE RELAYS AND GROUNDING
V
Protective relays:
Basic principled-Fundamental requirements of protective relayingPrimary and back up Protection-relay characteristics-relay timing Instantaneous relay -Inverse time relay and Definite time lag relayInverse
definite
minimum
time
relayclassification of relays-Construction, Principle of operation and
applications of Induction type over current relay Directional and Nondirectional), Distance relay, Differential relay, Negative sequence
relay, Induction type reverse power relay, Earth leakage relay. Static
relays- Basic elements of static relay - Schematic diagram and
operating principle of smart protective relays - current, Impedance,
directional, reactance and Mho relays.
Grounding:
Introduction-Equipment grounding-system grounding-ungrounded
Neutral system-Necessity of Neutral grounding -methods-solid
grounding, Resistance grounding Reactance grounding, Resonant
grounding-Earthing Transformer.
TEXT BOOK
Sl.No.
Name of the Book
1
Principles of Power
Author
V.K.Mehta,
Publisher
Edition
S. Chand & Co, Reprint 2007
New Delhi
145 | P a g e
REFERENCE BOOK
Sl.No.
1
2
3
Name of the Book
Electrical Power System
A Course in Electrical
Power
Electrical Power
Author
CL Wadhawa
Soni, Gupta
S.L Uppal,
Publisher
New Age International, New
Delhi (Fourth Edition, 2000)
Dhanpath Rai &Co (P) Ltd, New
Delhi
Khanna Publishers, New Delhi
4
A Course in Electrical
Power
J.B. Gupta,
Kaison Publishing House
(Reprint 2004)
5
HVDC Power Transmission
System & Technology
KR. Padiyar,
New Age International, New
Delhi (Reprint 2005)
6
7
8
Electrical Power System
Planning
Digital Protection –
Protective Relaying from
Electromechanical to
Microprocessor
Power System Protection
and Switchgear
A.S.Pabla,
LP Singh
B Ram & DN
Viswakarma,)
MacMillan India Ltd, New Delhi
New Age International (Second
Edition 1997)
TMH 1995 (Reprint 2000
146 | P a g e
MODEL QUESTION PAPER – 1
Time: 3 Hrs
Note: (i)
(ii)
Max. Marks: 75
Part ‘A’ Questions carry 1 mark each and answer for any 15 questions.
Part ‘B’ questions carry 12 marks each and answer all questions by
selecting ‘either’ or ‘OR’
PART ‘A’
1.
What are the conventional sources to general Electrical power?
2.
What is the purpose of surge tank?
3.
Give any two disadvantages of hydroelectric power plant.
4.
What is meant by stand-alone system?
5.
List the elements of a transmission line.
6.
Give any two limitations of Kelvin’s law.
7.
Give the types of line supports.
8.
Write the span lengths allowable for R.C.C. Poles.
9.
What is skin effect?
10.
Name the types of Insulators.
11.
Give any four reasons for failure of Insulators.
12.
Give any three properties of Insulating materials used in cables.
13.
Name the methods of laying underground cable
14.
What is switch gear?
15.
What are the factors responsible for the maintenance of arc between the
contacts?
16.
Give any three advantages of SF6 circuit breaker.
17.
What is the function of a fuse?
18.
What is static relay?
19.
What is meant by Primary protection?
20.
What is meant by grounding?
147 | P a g e
PART ‘B’
21
a. Draw and explain the schematic arrangement of thermal power plant
OR
b. List and explain the advantages of interconnected system.
22
a. Derive an expression for the sag in a transmission line conductor
suspended between two supports at the same level.
(OR)
b. Explain how to find the regulation and efficiency of short transmission lines.
23
a.1. Bring out the reasons for the failure of Insulator.
2. Explain any two methods to improve the string efficiency.
(OR)
b.1. Explain the construction of belted cable
2. Explain capacitance grading of U.G. Cables
24.
a. Explain the construction and working principle of sulphur hexa fluoride
circuit breaker and state its advantages.
(OR)
b. Explain the construction and working of HRC fuse with tripping device
25.
a. Explain the construction and working principle of earth leakage relay
(OR)
b. With necessary diagram explain resistance grounding.
148 | P a g e
MODEL QUESTION PAPER – 2
Time: 3 Hrs
Note: (i)
(ii)
Max. Marks: 75
Part ‘A’ Questions carry 1 mark each and answer for any 15 questions.
Part ‘B’ questions carry 12 marks each and answer all questions by
selecting ‘either’ A or B
PART ‘A’
1.
Give the renewable energy sources for generating Electrical power.
2.
What is meant by grid?
3.
What is meant by Tariff?
4.
State Kelvin’s law
5.
Give the properties of conductor materials used for O.H. transmission
6.
What is ferranti effect?
7.
Give any two advantages of suspension Insulators.
8.
What is string efficiency?
9.
Name the types of pressure cable.
10.
Name the types of grading of cables.
11.
What is symmetrical faults in power system?
12.
What is meant by Recovery voltage?
13.
What is short time rating?
14.
Write the desirable characteristics of fuse.
15.
List the fundamental requirements of relay
16.
What is meant by backup protection?
17.
List the types of Neutral grounding
18.
Give the types of static relays.
19.
List the effects of ungrounded Neutral.
20.
What is static relay?
149 | P a g e
PART ‘B’
21
a.
Draw and explain the schematic diagram of nuclear power plant.
(OR)
22
b.
A generating station has a maximum demand of 50 mw. Given the
following data, calculate the cost per unit delivered. Capital cost – Rs.
95x105. Annual cost of fuel and oil Rs. 9x105 Taxes, wages and salaries – Rs. 6 x 105
Rate of Interest and depreciation – 10% Annual Load factor -50%
a.
State and explain Kelvin’s law
(OR)
23
b.
Compare constant current and constant voltage HVDC systems
a.
Explain the various methods of testing of insulators.
(OR)
24
b.
Explain different types of laying of cables.
a.
Explain the construction and working principle of vacuum Circuit breaker
(OR)
25
b.
Explain the construction and working of expulsion type lightning arrester.
a.
Explain the construction and working principles of directional over current relay.
(OR)
b.
Explain the construction and working principle of Earthing transformer
150 | P a g e
STATE BOARD OF TECHNICAL EDUCATION AND TRAINING, TAMIL NADU
SYLLABUS FOR DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING
L-SCHEME
Course Name
: Diploma in Electrical and Electronics Engineering
Subject Code
: 24052
Semester
: V Semester
Subject Title
: MICROCONTROLLER
TEACHING AND SCHEME OF EXAMINATION
No. of weeks per Semester : 16
Instruction
Subject
Hours /
Week
Hours /
Semester
5
80
MICROCONTROLLER
Examination
Assessment marks
Board
Internal
Examination
25
75
Total
100
TOPICS AND ALLOCATION OF TIME
UNIT
TOPIC
TIME (Hours)
I
Architecture & Instruction set of 8051
16
II
Programming Examples
12
III
I/O and Timer
14
IV
Interrupt and Serial Communication.
14
V
Interfacing Techniques.
16
Revision and Test
8
Total
80
RATIONALE
Controlling all the machineries are realized through Electronics. Without Electronics controlling
the machines, devices, systems are not possible. Microcontroller is the most reliable, cost effective
and flexible for all control activities. It plays major role in Machines, domestic gadgets, automobiles
etc. Here is an attempt to introduce the familiar Intel 8051 microcontroller with some programming
examples.
151 | P a g e
OBJECTIVES
On completion of the following units of syllabus contents, the students must be able to
.. Explain Architecture of 8051 Microcontroller.
.. Explain the functions of various registers.
.. Understand interrupt structure of 8051.
.. Understand serial data communication concepts.
.. Understand the programming techniques.
.. Explain various addressing modes.
.. Write simple programs using 8051.
.. Understand the block diagram and control word formats for peripheral devices.
.. Understand how to interface with RS232C.
.. Understand how to interface with 8255.
.. Understand various application of 8051 Microcontroller
152 | P a g e
24052 MICROCONTROLLER
DETAILED SYLLABUS
Contents : Theory
Unit
I
II
III
Unit
IV
V
Name of the Topic
Architecture & Instruction set of 8051:
Comparison of Microprocessor and Microcontroller - Block diagram of
Microcontroller –Functions of each block.
Pin details of 8051 – ALU –ROM – RAM – Memory Organization of
8051 - Special function registers – Program Counter – PSW register –
Stack - I/O Ports – Timer – Interrupt – Serial Port – Oscillator and
Clock - Clock Cycle – State - Machine Cycle – Instruction cycle –
Reset – Power on Reset – Overview of 8051 family
Instruction set of 8051 – Classification of 8051 Instructions - Data
transfer instructions –– Arithmetic Instructions – Logical instructions
–Branching instructions – Bit Manipulation Instructions.
Programming Examples :
Assembling and running an 8051 program –Structure of Assembly
Language –Assembler directives - Different addressing modes of
8051 – Programmes – Multibyte Addition – 8 Bit Multiplication and
Division – Biggest Number / Smallest Number – Ascending order /
Descending order – BCD TO HEX Conversion – HEX TO BCD
Conversion –HEX TO ASCII Conversion – ASCII TO Binary
Conversion – Square Root of a Given Number – LCM – GCD – Odd
Parity Generator – Even Parity Generator - Time delay routines
I/O and Timer :
Bit addresses for I/O and RAM – I/O programming – I/O bit
manipulation programming – Programming 8051 Timers – Timer 0
and Timer 1 registers – Different modes of Timer – Mode 0
Programming – Mode 1 Programming - Mode 2 Programming - Mode
3 Programming - Counter programming – Different modes of Counter
– Mode 0 Programming – Mode 1 Programming - Mode 2
Programming - Mode 3 Programming.
Name of the Topic
Interrupt and Serial Communication:
Basics of Serial programming – RS 232 Standards - 8051 connection
to RS 232 – 8051 Serial Communication Programming –
Programming the 8051 to transfer data serially - i Programming the
8051 to Receive data serially – 8051 Interrupt s – Programming
Timer Interrupts – Programming external hardware interrupts –
Programming the serial communication interrupt – Interrupt priority in
8051
Interfacing Techniques :
IC 8255 – Block Diagram – Modes of 8255 - IC 8253 – Block Diagram
– Modes of 8253 - Interfacing external memory to 8051– 8051
interfacing with the 8255 – (Programs are to be written in Assembly for
the following interfacing applications) Relays and opto isolators –
Sensor interfacing – ADC interfacing – DAC interfacing - Keyboard
interfacing – Seven segment LED Display Interfacing - LCD display
interfacing – Stepper Motor interfacing – DC motor interfacing - PWM
– DS12887 RTC Interfacing.
Hours
Marks
16
15
12
15
14
15
Hours
Marks
14
15
16
15
153 | P a g e
TEXT BOOK
Sl.No.
1
Name of the Book
8051 Microcontroller by
Author
Publisher
Kenneth J.Ayala.
REFERENCE BOOKS
Sl.No.
Name of the Book
Author
1
Microcontrollers, Principles
and Applications
Ajit pal
2
8051 Microcontroller and
Embedded Systems using
Assembly and C
Mazidi, Mazidi and
D.MacKinlay,
Publisher
PHI Ltd 2011.
Pearson Education Low
Price Edition 2006
154 | P a g e
24052 - MICROCONTROLLER
Model question paper – I
Time : 3 Hrs.
Part – A
Max. Marks: 75
15x1=15
Note : Answer any 15 Questions. – All Questions carry equal marks
1.
2.
3.
4.
5.
6.
7.
8.
9.
What is Microcontroller?
Mention the number of bytes in internal RAM and internal ROM of 8051?
State any two differences between microprocessor and microcontroller.
When 8051 is reset, all interrupts are disabled. How to enable these interrupts?
What are the instructions used to access external RAM.
List the Addressing modes in 8051?
What is meant by assembler directives?
List any four assembler directives.
Calculate the reload value of timer 1 for achieving a baud rate of 4800 in 8051 for a crystal
frequency of 11.0592 MHz.
10. Mention the timers of 8051.
11. Mention the operating modes of 8051 timers
12. Mention the control registers related to timer/counters of 8051
13. How will you double the baud rate in 8051?
14. List the interrupts available in 8051?
15. What is meant by interrupt priority in 8051?
16. What is the function of SMOD bit in PCON register?
17. Write the BSR control words to set PC0 and to reset PC4 in 8255.
18. What is the instruction used to transfer a data byte between microcontroller and 8255.
19. Define a stepper motor.
20. Give the normal 4 step sequence.
Part – B
5x12 = 60
Note : i) Answer all Questions choosing.
ii) All sub divisions carry equal marks.
21 A) Draw and explain the block Diagram of 8051 microcontroller
(Or)
B) i) List the special function registers with their addresses and explain anyone of them
ii) Draw and explain the Structure of Internal RAM of 8051
22 A) Write an assembly language program to arrange the given set of ‘n’ numbers in ascending
order
(Or)
B) Explain the various addressing modes in 8051 with examples.
23 A) Explain in details about the programming of 8051 timer
(Or)
B) Write a program to generate square wave of 50 Hz frequency on pin P1.2 using timer 0 interrupt.
Assume crystal = 11.0592 MHz
24 A) Explain about the programming of 8051 serial port
(Or)
B) Explain the functions of each bit of Serial Control Register (SCON) and Power Control Register
(PCON)
in detail.
25 A) Explain about 8051 interfacing with 8255
(Or)
B) Explain about stepper motor interfacing with 8051
155 | P a g e
24052 - MICROCONTROLLER
Model question paper – II
Time : 3 Hrs.
Part – A
Max. Marks: 75
15x1=15
Note : Answer any 15 Questions. – All Questions carry equal marks
1. Give the PSW setting for masking register bank 2 as default register bank in 8051
Microcontroller?
2. Define the clock cycle of 8051.
3. Define the machine cycle of 8051.
4. Define the instruction cycle of 8051.
5. How can you perform multiplication using 8051 Microcontroller?
6. What is the operation carried out when 8051 executes the instruction MOVC A, @A + DPTR?
7. Write a delay routine for 1 millisecond using timer 0 of 8051 for 12 MHz crystal frequency.
8. List the addressing modes of 8051.
9. What is the function of C/T bit of TMOD register?
10. Find the timer’s clock frequency for the crystal frequency of 11.0592 MHz
11. What is the function of C/T bit of TMOD register?
12. State the function of timer flag TF in TCON register.
13. List the serial modes. ?
14. What is the function of REN bit in SCON register?
15. What is the function of SMOD bit in PCON register?
16. State the two methods of serial data communication.
17. Define a transducer.
18. Define step angle.
19. What is meant by signal conditioning?
20. Define DAC.
Part – B
5x12 = 60
Note: i) Answer all Questions choosing.
ii) All sub divisions carry equal marks.
21 A) Explain with neat sketch memory organisation of 8051.
(Or)
B) Draw the pin diagram of 8051 and explain the function of each pin.
22 A) Write an assembly language program (ALP) for multi-byte addition
(Or)
B) Write an ALP for finding maximum number in an array.
23 A) Explain the TMOD register and TCON register
(Or)
B) Explain the steps to program the timer in mode 1 and mode 2.
24 A) Write the steps involved in programming 8051 to transfer and receive data serially.
(Or)
B) Explain the interrupt priority in 8051.
25 A) Explain ADC interfacing with 8051.
(Or)
B) Explain seven segment LED display interfacing with 8051.
156 | P a g e
STATE BOARD OF TECHNICAL EDUCATION AND TRAINING, TAMIL NADU
SYLLABUS FOR DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING
L-SCHEME
Course Name
: Diploma in Electrical and Electronics Engineering
Subject Code
: 23053
Semester
: V Semester
Subject Title
: SPECIAL ELECTRICAL MACHINES
TEACHING AND SCHEME OF EXAMINATION
No. of weeks per Semester : 16
Instruction
Subject
Hours /
Week
Hours /
Semester
5
80
SPECIAL ELECTRICAL
MACHINES
Examination
Assessment marks
Board
Internal
Examination
25
75
Total
100
TOPICS AND ALLOCATION OF TIME
UNIT
TOPIC
TIME (Hours)
I
PERMANENT MAGNET SYNCHROUNOUS MOTORS
14
II
SWITCHED RELUCTANCE MOTORS
14
III
STEPPER MOTORS
14
IV
PERMANENT MAGNET BRUSHLESS DC MOTORS
13
V
OTHER SPECIAL MACHINES
13
Revision/Test
12
Total
80
RATIONALE
For a long time, the conventional electrical machines are being taught. Large number of
special type electrical machines were developed. They are different from the conventional machines
in terms of design, energy efficiency, size, performance etc. They are largely used in the industrial
environment. In order to impart some knowledge on these machines, this subject is introduced.
157 | P a g e
OBJECTIVES
- To review the fundamental concepts of permanent magnets and the operation
of permanent magnet brushless DC motors.
- To introduce the concepts of permanent magnet brushless synchronous motors
and synchronous reluctance motors.
- To develop the control methods and operating principles of switched reluctance
motors.
- To introduce the concepts of stepper motors and its applications.
- To understand the basic concepts of other special machines.
158 | P a g e
23053 SPECIAL ELECTRICAL MACHINES
DETAILED SYLLABUS
Contents : Theory
Unit
I
II
III
IV
V
Name of the Topic
Hours
PERMANENT MAGNET SYNCHROUNOUS MOTORS
Principle of operation – EMF and Torque equations - Phasor diagram Power
controllers – Torque speed characteristics – Digital controllers –
Constructional features, operating principle and characteristics of
synchronous reluctance motor.
SWITCHED RELUCTANCE MOTORS
Constructional features –Principle of operation- Torque prediction –
Characteristics- Power controllers – Control of SRM drive- Sensorless
operation of SRM – Applications.
STEPPER MOTORS
Constructional features –Principle of operation –Types – Torque
predictions – Linear and Non-linear analysis – Characteristics – Drive
circuits – Closed loop control – Applications.
PERMANENT MAGNET BRUSHLESS DC MOTORS
Fundamentals of Permanent Magnets- Types- Principle of operationMagnetic circuit analysis-EMF and Torque equations- Characteristics
and control
OTHER SPECIAL MACHINES
Principle of operation and characteristics of Hysteresis motor – AC
series motors – Linear motor – Permanent magnet DC and AC
motors, Applications.
Marks
14
15
14
15
14
15
13
15
13
15
TEXT BOOKS
Sl
No
Title
Author(s)
Publishers
Edition &
year
1
Brushless magnet and Reluctance motor
drives
T.J.E. Miller
Clarendon press
London
1989
2
Switched Reluctance motor drives
R.Krishnan
CRC press
2001
3
Stepping motors and their
microprocessor controls
T.Kenjo,
Oxford University
2000.
press, New Delhi
159 | P a g e
REFERENCE BOOKS
Sl
No
1
Title
Author(s)
Publishers
2
Permanent magnet and Brushless
DC motors
Electric motor drives
T.Kenjo and
S.Nagamori
R.Krishnan
3
Electric machines
4
Electric Machinery and Transformers
D.P.Kothari
and
I.J.Nagrath
Irving
L.Kosow
Clarendon press,
London
Prentice hall of
India
Tata Mc Graw hill
publishing
company
Pearson Education
Edition &
year
1988
2002
Third
Edition
2004
Second
Edition
2007
160 | P a g e
23035 SPECIAL ELECTRICAL MACHINES
MODEL QUESTION PAPER - II
Time : 3 hrs
Max. Marks : 75
Note :- (1) Part A Questions carry 1 Mark each and answer for any 15 Questions
(2) Part B Questions carry 12 marks each and answer all, questions by choosing either or
PART - A
15 X 1 = 15
1. State the difference between permanent magnet motor and pure reluctance motor?
2. Write down the torque equation of permanent magnet synchronous motor?
3. What type of supply is given for permanent. magnet synchronous motor.
4. List any one application of synchronous reluctance motor.
5. State any two advantages of switched reluctance motor.
6. What is the principle of switched reluctance motor?
7. Give any two applications of SRM.
8. Give the relationship between fundamental switching frequency and speed of SRM.
9. Define step angle as applied to stepper motor.
10. What is hybrid stepper motor?
11. Draw the dynamic characteristics of stepper motor?
12. Mention few application of stepper motor.
13. Draw the demagnetization characteristic curve of permanent magnet.
14. What are the disadvantages of brushless DC motor as compared to - PMDC commutator
motor.
15. Give the emf equation of permanent magnet brushless DC motor.
16. Mention any two applications of permanent magnet brushless DC motor.
17. Which type of supply is used in Hysterisis motor?
18. where is linear motor used ?
19. Mention the application of a.c series motor?
20. State the principle of permanent magnet D.C motor.
161 | P a g e
PART - B
21. (A) Derive from the first principles the emf equation of permanent magnet synchronous motor.
(12)
(or)
(B) Bring out the equation for electromagnetic torque in permanent magnet synchronous
motor.
(12)
22. (A) Explain how static torque is produced in switched Reluctance motor.
(12)
(or)
(B) With neat sketch explain the construction and principle of operation of SRM. (12)
23. (A) Draw the block diagram of closed loop control of stepper motor and explain.
(12)
(or)
(B) Explain atleast any five applications of stepper motor.
(12)
24. (A) Draw the magnetic equivalent circuit of PMBLDC motor and Discuss on various
parameters therein
(12)
(or)
(B) With neat sketches and waveforms explain the operation of Brushless DC motor with 180°
and 120° magnet arcs.
(12)
25. (A) With neat sketches explain the principle of operation and characteristics of hysteris motor.
(or)
(B) Write short notes on
(12)
1. Permanent magnet AC motor.
2. Linear motor.
162 | P a g e
23053 SPECIAL ELECTRICAL MACHINES
MODEL QUESTION PAPER - II
Time : 3 hrs
Max. Marks : 75
Note :(1) Part A Questions carry 1 Mark each and answer for any 15 Questions
(2) Part B Questions carry 12 marks each and answer all, questions by choosing
either or 'OR'
PART - A
15 X 1 = 15
1. State any two properties of synchronous reluctance motors.
2. Give the emf equation of permanent magnet synchronous motor.
3. Mention any two advantages of pure reluctance motor.
4. State any one typical application of permanent magnet synchronous motor
5. What do you mean by switched Reluctance motor?
6. Draw the Torque - Speed characteristics of SRM.
7. Mention any two draw backs of switched reluctance motor.
8. List any two applications of SRM.
9. State the principle of stepper motor.
10. Define holding torque as applied to static characteristics of stepper motor.
11. Mention different types of stepper motor
12. List any two applications of stepper motor.
13. Name the materials used for permanent magnet.
14. Draw the BH curve of permanent magent
15. What are the satient features of brushless D.C motor?
16. Write down the torque equation of Brushless D.C motor.
17. What is the type of supply used in permanent magnet a.c. motor?
18. What is linear motor?
19. Give an application of permanent magnet D.C motor.
20. State the principle of hysteresis motor?
163 | P a g e
PART - B
21. (A) With neat sketch explain the constructional features and operating principle of
permanent magnet synchronous reluctance motor.
(12)
(or)
(B) Draw the explain the phasor diagram of permanent magnet synchronous motor.
(12)
22. (A) With neat sketches explain the constructional features and working principle of
SRM.
(12)
(or)
(B) Draw and explain SRM drive circuits for 3 phase SRM.
(12)
23. (A) Draw the block diagram of closed loop. control of stepper motor and explain.
(12)
(or)
(B) Explain in detail the construction and operation of stepper motor.
(12)
24. (A) (1) Bring about EMF and Torque equation of permanent magnet brushless
D.C motor.
(6)
(2) Draw and explain Torque speed characteristics of brushless DC motor.
(6)
(or)
(B) Draw the schematic of controller for brushless D.C motor and explain its functions.
(12)
25. (A) Briefly explain the principle of operation and characteristics of Hysterisis motor.
Mention its
applications.
(12)
(or)
(B) Write short notes on
(12)
1. Linear motor.
2. A.C series motor
164 | P a g e
STATE BOARD OF TECHNICAL EDUCATION AND TRAINING, TAMIL NADU
SYLLABUS FOR DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING
L-SCHEME
Course Name
Subject Code
Semester
Subject Title
:
:
:
:
Diploma in Electrical and Electronics Engineering
23071
V Semester
Control of Electrical Machines
TEACHING AND SCHEME OF EXAMINATION
No. of weeks per Semester : 16
Instruction
Subject
Control of Electrical
Machines
Hours /
Week
Hours /
Semester
5
80
Examination
Assessment marks
Board
Internal
Total
Examination
25
75
100
TOPICS AND ALLOCATION OF TIME
UNIT
TOPIC
TIME (Hours)
I
Control Circuit Components
14
II
DC Motor Control Circuits
13
III
AC Motor Control Circuits
14
IV
Programmable Logic Controller
13
V
Industrial Control Circuits
14
Revision and Test
12
Total
80
RATIONALE
Various control operations are to be performed on the
electrical machines
to suit the
industrial requirements. Technician are mainy employed to look after the control panels. To make our
students employable, they have to be trained in using various control components and circuits. This
subject fulfils that requirement.
165 | P a g e
OBJECTIVES
To understand

Electrical control circuit elements including various types of industrial switches, relays, timers,
solenoids, contactors and interlocking arrangement.

DC motor control circuits for acceleration control, speed control, direction control, braking
control and jogging using contactors.

AC motor control circuits for acceleration control, speed control, direction control, braking
control and jogging using contactors.

Basics of programmable logic controller.

Different control circuits for industrial applications.
166 | P a g e
23071 CONTROL OF ELECTRICAL MACHINES
DETAILED SYLLABUS
Contents : Theory
Unit
I
II
III
IV
V
Name of the Topic
Hours
Control Circuit Components
Switches – Push button, selector, drum, limit, pressure,
temperature (Thermostat), float, zero speed and Proximity
switches. Relays – Voltage relay, dc series current relay,
frequency response relay, latching relay and phase failure relay
(single phasing preventer). Over current relay – Bimetallic thermal
14
over load relay and Magnetic dash pot oil filled relay. Timer –
Thermal, Pneumatic and Electronic Timer. Solenoid Valve,
Solenoid type contactor (Air Break Contactor), Solid State Relay,
Simple ON-OFF motor control circuit, Remote control operation
and interlocking of drives.
DC Motor Control Circuits
Current limit acceleration starters – Series relay and counter EMF
starters - Definite Time acceleration starters – Field failure
protection circuit – field acceleration protection circuit – field
deceleration circuit. Jogging control, dynamic braking control,
reversing control and plugging control circuits, Speed control using
UJT&SCR.
AC Motor Control Circuits
Motor current at start and during acceleration – No load speed and
final speed of motor – DOL starter – Automatic auto transformer
starter (open circuit and closed circuit transition) – Star/Delta
starter (semi automatic and automatic) – Starter for two speed,
two winding motor – Reversing the direction of rotation of
induction motor – Plug stopping of the motor – Dynamic braking –
Three step rotor resistance starter for wound induction motor –
Secondary frequency acceleration starter.
Programmable Logic Controller
PLC –Definition – Requirements of PLC – Advantages over relay
logic – components of PLC – Programming the PLC – Program
loader – How the PLC operates – Additional capabilities of PLC –
Ladder logic diagram – Symbols for common logic and sequence
components in a ladder diagram – Ladder logic diagram for DOL
starter, star/delta starter and fluid filling operation – Typical low
level language instruction set for a PLC – Input module (schematic
and wiring diagram) – Output module(schematic and wiring
diagram) – PLC scan.
Industrial Control Circuits
Planner machine – Contactor control circuit – Logic control circuit
– Skip hoist control – Automatic control of a water pump – Control
of electric oven – Control of air compressor – Control of over head
crane – Control of conveyor system – Control of elevator –
Trouble spots in control circuits – General procedure for trouble
shooting.
Marks
15
13
15
14
15
13
15
14
15
167 | P a g e
TEXT BOOK
Sl.No.
1.
2.
Name of the Book
Control of Electrical
Machines.
Explosing Programmable
Logic controllers with
application.
Author
S.K. Bhattacharya
Pradeep Kumar
Srivastava.
Publisher
New Age International
Publishers, New Delhi
BPB Publications
168 | P a g e
CONTROL OF ELECTRICAL MACHINES (ELECTIVE THEORY I)
MODEL QUESTION PAPER I
Time: 3 hours
Marks: 75
Note: Part A questions carry each 1 mark and answer any Fifteen questions.
Part B questions carry each 12 marks and answer all questions by selecting either “a” or “b”.
Part- A
01. State some relays used in the control circuit.
02. What is ON delay timer?
03. State the advantage of solid state relay.
04. What is the purpose of zero speed switch?
05. Define the term current limit acceleration.
06. What is the necessity for field acceleration protection circuit?
07. What are the precautions to be taken for D.C. motor reversing control?
08. What is meant by inching?
09. What is closed circuit transition?
10. Draw the control circuit for DOL starter.
11. What is plug stopping?
12. Draw the current speed charterstics of an AC motor during acceleration.
13. Define PLC.
14. What are the requirements of PLC
15. What are the additional capabilities of PLC?
16. Define PLC scan.
17. What is planer machine?
18. State any one of the method of heat control of oven.
19. Name any two trouble spots in a control circuit.
20. How do you reverse the direction of rotation of a three phase induction motor?
169 | P a g e
Part-B
21. a) 1) Explain the constructional details of solenoid type Contactor with a neat sketch.
(6)
2) Draw the schematic diagram of solid state relay.
(6)
OR
b) 1) What is single phasing? What are the effects of single phasing.
2) Explain with circuit diagram the principle of operation of single phasing preventer.
22) a) 1) Explain the principle of dynamic braking on d.c. motor.
2) Explain with a neat diagram the speed control of D.C motor using Diac and SCR.
(6)
(6)
(6)
(6)
OR
b) Draw and explain the control circuit of definite time acceleration starter with field
failure protection and field acceleration protection arrangements.
(12)
23) a) Explain the operation with a control circuit how dynamic Braking is done in cage
induction motor.
(12)
OR
b) Explain with a control circuit the working of a automatic 3 stepped rotor
resistance starter for wound rotor Induction motor.
24) a) 1) What are the advantages of PLC over relay logic.
2) Develop a ladder logic diagram for star Delta starter and explain.
(12)
(6)
(6)
OR
b) Draw the block diagram of PLC system and explain the Input/ output
module with schematic diagram
25) a) Explain the control circuit of Skip hoist with neat sketch
OR
b) Explain with a neat sketch, the control of a conveyor system by
sequential starting of conveyor motors.
(12)
(12)
(12)
170 | P a g e
CONTROL OF ELECTRICAL MACHINES (ELECTIVE THEORY I)
MODEL QUESTION PAPER II
Time: 3 hours
Marks: 75
Note: Part A questions carry each 1 mark and answer any Fifteen questions.
Part B questions carry each 12 marks and answer all questions by selecting either “a” or “b”.
Part- A
01. What is float switch?
02. What is OFF Delay timer?
03. What is relay?
04. State the use of bimetallic strip.
05. Define definite time acceleration.
06. What is plugging?
07. Define Jogging.
08. How will you reverse the direction of rotation of a DC Motor?
09. What is meant by dynamic braking?
10. Define open circuit transition.
11. Which motor is started by using secondary frequency acceleration starter.
12. Mention the starter which is suitable for staring a 3 HP 3 phase IM.
13. Define Input module.
14. What are the applications of PLC?
15. Draw the block diagram of PLC.
16. What is program loader?
17. Which switch is used in automatic control of over head pressure tank?
18. How variation in temperature is achieved in electric oven?
19. What is the function of pressure switch in air compressor?
20. Which switch is used to stop the lift at different floors?
171 | P a g e
PART-B
21. a) 1) Explain the following: (i) Electronic timer (ii) zero speed switch.
(6)
2) Draw the control circuit of electrical interlock and mechanical interlock and
explain briefly.
(6)
OR
b) 1) Draw a neat sketch of Pneumatic timer and explain principle of operation.
(6)
2) Explain in detail about frequency response relay.
(6)
22) a) Explain with a neat diagram, the working of counter EMF starter.
(12)
OR
b) 1) Explain with neat circuit diagram the speed control Circuit using UJT and SCR?
23)
(6)
2) Draw the field acceleration protection control circuit.
(6)
a) Draw the two speed two winding control circuit of an induction motor and explain.
(12)
OR
b) Draw the control circuit for auto transformer starter of closed circuit
transition and explain.
(12)
24) a) Develop ladder logic diagram for star-delta starter and explain the working.
(12)
OR
b) 1) Briefly explain the various processes carried out in a PLC scan with
neat sketches.
(6)
2) Name the different methods of programming a PLC and explain
any one method.
(6)
25) a) Draw and explain the logic control circuit of a Planner machine.
(12)
OR
b) With neat sketch, explain the operation of automatic control of air compressor.
(12)
172 | P a g e
STATE BOARD OF TECHNICAL EDUCATION AND TRAINING, TAMIL NADU
SYLLABUS FOR DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING
L-SCHEME
Course Name
Subject Code
Semester
Subject Title
:
:
:
:
Diploma in Electrical and Electronics Engineering
23072
V Semester
PROGRAMMABLE LOGIC CONTROLLER (Elective – I)
TEACHING AND SCHEME OF EXAMINATION
No. of weeks per Semester : 16
Instruction
Subject
Hours /
Week
Hours /
Semester
5
80
PROGRAMMABLE
LOGIC CONTROLLER
Examination
Assessment marks
Board
Internal
Total
Examination
25
75
100
TOPICS AND ALLOCATION OF TIME
UNIT
TOPIC
Introduction to Programmable Logic Controller
12
Input and Output Modules
14
PLC Programming
14
Networking
14
Data Acquisition Systems
14
I
II
III
IV
V
TIME (Hours)
Revision and Test
Total
12
80
RATIONALE
Industries are going for automation to reduce their product cost to sustain their market among
customers. Industrial automation with newer technology reduces human presence for any process. It
leverages different electronic equipments to control different parameter of any industrial process.
Programmable logic controllers plays an important role in industrial automation. There are wide scope
for diploma holders in installation, testing and maintenance of PLC based automatic process control
industries.
173 | P a g e
OBJECTIVES
To understand
• Evolution, internal structure, interface modules, advantages and market available PLCs.
• Various types of input and output modules.
• Input sensors.
• Various PLC programming methods, basic instructions like ON,OFF, timer, counter,
latched and unlatched outputs.
• Simple PLC ladder programs for starters, filling plants.
• PLC networking, industrial standard communication networks.
• SCADA system hardware and software.
174 | P a g e
23072 PROGRAMMABLE LOGIC CONTROLLER
DETAILED SYLLABUS
Contents : Theory
Unit
I
II
III
IV
V
Name of the Topic
Hours
Introduction to Programmable Logic Controller
PLC evolution – hardwire control system compared with PLC
system advantages of PLCs – criteria for selection of suitable PLC - Block
12
diagram of PLC – principle of operation – CPU – memory
organization – I/O modules – Input types – Logic, Analog – pulse
train – expansion modules – power supplies to PLC – modular PLCs
- list of various PLCs available
Input and Output Modules
Input Modules
Discrete input module – AC input module – DC input module –
sinking and sourcing – sensor input – special input modules –
14
Sensors – limit switch, reed switch, photo electric sensor, inductive
proximity sensor – Input Addressing scheme in important
commercial PLCs.
Output modules
Discrete output module – TTL output module – Relay output –
Isolated
output module – surge suppression in output – Analog outputs –
open collector output. Output Addressing scheme in important
commercial PLCs.
PLC Programming
Symbols used – relays and logic functions – OR, AND, Comparator
Programming Devices – programming methods – STL and CSF,
14
FBD and Ladder methods – simple instructions – Programming NC
and NO contacts - EXAMINE ON and EXAMINE OFF instructions online, offline methods– Latch and Unlatch outputs – pulse edge
evaluation – timer instructions – on-delay and off-delay timer.
Counter instructions – UP / DOWN counters – Timer and Counter
applications. Program control instructions – Data manipulating
instructions – Math instructions. converting simple relay ladder
diagramm into PLC relay ladder diagram – PID and PWM functions.
Sample PLC implementations for Automatic Star-Delta Starter and 4
- floor Lift system.
Networking
Levels of industrial control – types of networking – network
communications – principles – transmission media – Field Bus –
introduction, concepts, international field bus standards –
14
Networking with TCP / IP Protocol – Network architecture – Physical
addressing – LAN technologies – Ethernet – Token Ring – Subnetting – subnet mask – transport layer – ports – socketsnetwork
services – file transfer protocol.
Data Acquisition Systems
Computers in Process control – Data Loggers – Data acquisition
systems (DAS) – Alarms – Direct Digital Control (DDC) 14
Characteristics of digital data – Controller software – Computer
Process interface for Data Acquisition and control –Supervisory
Digital Control (SCADA) -introduction and brief history of SCADA –
SCADA Hardware and software
Marks
15
15
15
15
15
175 | P a g e
TEXT BOOK
Title
Introduction to
Programmable Logic
Controller
Author(s)
Gary Dunning
Publishers
Thomson Delmar
learning
Edition
REFERENCE BOOKS
Sl.No
1
2
3
4
Title
Programmable Logic
Controllers; Principles
and applications
Exploring Programmable
Logic Controllers with
applications
Programmable Logic
Controllers
Programmable Logic
Controllers; Principles
and applications
Author(s)
Jhon W Webb
Ronald A Rels
Publishers
PHI LearningPvt
Ltd
Edition
2012
Srivastava
BPB Publishers
2012
Vijay R Yadhav
Khanna
Publishers
NIIT
2010
NIIT
176 | P a g e
MODEL QUESTION PAPER I
Time – Three hours
Maximum Marks : 75
[N.B – 1. Answer any 15 questions from Part A Each Question carries 1 mark.
2. Answer all questions in part B choosing either (A) OR (B) in each
Question. Each Question in part B carries 12 Marks.
Part A
1. State the use of PLC.
2. List the various types of PLC.
3. What is the function of analog input module?
4. Draw the symbol of Float switch
5 List the four major parts of PLC
6 State the purpose of input output interface.
7. Mention the output address scheme of Siemens Micro PLC
8. List the various types of input devices connected with a PLC
9. Draw the symbol for PLC comparator
10. When NO contact becomes NC contact in a relay.
11. List the different types of programming methods of PLC
12. State the uses of counter in a PLC
13. Mention some transmission media.
14. Which field bus is required with distributed control system?
15. What is communication protocol?
16. What are the classification of network.
17. Expand DAS .
18. Expand SCADA .
19. Write any two advantage of SCADA.
20. Write about Direct Digital Controller
Part B
21. A) Discuss in detail about advantages of PLC over hardwired system.
(or)
B) Draw the basic block diagram of PLC and give brief account on each block.
22. A) Draw the discrete input module and explain the operation.
(or)
B) Discuss in detail about various output module of PLC.
23. A) Explain ON delay and OFF delay timer instructions with simple examples.
(or)
B) Develop relay logic diagram of star delta starter and convert it into logic diagram
24. A) Draw a typical architecture of industrial control system showing field bus and
explain?
(Or)
B) Give a note on: i) Ethernet ii) Transport layer
25. A) What do you understand by DAS. Discuss its function with simple real time
example.
(or)
B) Discuss in detail about SCADA software.
177 | P a g e
PROGRAMMABLE LOGIC CONTROLLER
MODEL QUESTION PAPER II
Time – Three hours
Maximum Marks : 75
[N.B – 1. Answer any 15 questions from Part A Each Question carries 1 mark.
2. Answer all questions in part B choosing either (A) OR (B) in each
Question. Each Question in part B carries 12 Marks.
Part A
1 . List some standard PLCs available in market..
2. Mention the function of CPU in PLC.
3 What is the function of analog output module?
4. What are types of IC Memory used in PLC?
5. Draw the symbol of limit switch.
6. Name the component in isolation section
7. List the various types of output devices connected with a PLC
8. State the advantages of photo electric sensors
9. Mention the different types of timer values.
10. Which function is needed for process control instrumentation?.
11. What are the commonly used timers?
12. What is input scan?
13. Mention any two international field bus standard
14. What is the necessity of file transfer protocol?
15. What are the requirements of field bus?
16. What is the function of transport layer?
17. State the uses of data acquisition system.
18. Expand SCADA.
19. What do you understand by data logging?
20. State two characteristics of digital data controller.
Part B
21
A) Discuss in detail about PLC operation.
(or)
B) Explain the memory organization of standard PLCs
22. A) Discuss about AC input module.
(or)
B) Draw the discrete output module and explain the operation.
23. A) What are the counting operation available in standard PLCs? Explain them.
(or)
B) Develop ladder logic control for 4 floor lift system and explain.
24. A) Discuss about various layers in Communication protocol
(or)
B) Give a note on: Field level communication protocol.
25. A) Explain the operation of a Data acquisition systems with a generalized block diagram
.
(or)
B) What do you understand by SCADA system? Give a brief account on it
178 | P a g e
STATE BOARD OF TECHNICAL EDUCATION AND TRAINING, TAMIL NADU
SYLLABUS FOR DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING
L-SCHEME
Course Name
: Diploma in Electrical and Electronics Engineering
Subject Code
: 23073
Semester
: V Semester
Subject Title
: ELECTRICAL MACHINE DESIGN (ELECTIVE THEORY – 1)
TEACHING AND SCHEME OF EXAMINATION
No. of weeks per Semester : 16
Instruction
Subject
Hours /
Week
Hours /
Semester
5
80
Examination
Assessment marks
Board
Internal
Examination
Total
ELECTRICAL MACHINE
DESIGN (ELECTIVE
25
75
100
THEORY – 1)
TOPICS AND ALLOCATION OF TIME
UNIT
TOPIC
TIME (Hours)
I
Electrical Machine Design – Basic Consideration
12
II
Magnetic Circuit Calculations
12
III
Design of Transformer
14
IV
Design of dc machines
14
V
Design of ac machines
16
Tests and Revisions for above Units
12
Total
80
RATIONALE
Through out the country there are many electrical industries and manufacturing different kinds
of electrical machines like transformers, DC generators, DC motors, AC motors, and alternators.
Their rating starts from hundreds of WATTS / VA to few KW / KVA or even in MW / MVA. These
Industries have R&D center, Diploma or Graduate engineers as R&D engineers for product
development. Hence it is necessary to include electrical machine design as one of the subject at
diploma level courses.
179 | P a g e
OBJECTIVES
To understand
 Static and Rotating Electrical Machine specifications, materials, losses and effects of
temperature rise.
 Magnetic force, magnetic force gap, teeth and leakage flux in static and rotating electrical
machines.
 Designing of single phase, three phase transformer, core and coil.
 Designing of dc machines.
 Designing of 3phase induction motor and 3phase synchronous machines.
180 | P a g e
23073 ELECTRICAL MACHINE DESIGN (ELECTIVE THEORY – 1)
DETAILED SYLLABUS
Contents : Theory
Unit
I
II
III
IV
V
Name of the Topic
Electrical Machine Design – Basic Consideration
Design definition – Design consideration – limitation –
constructional elements of Transformers and rotating machines –
constructional materials of electrical machines – conducting
magnetic and insulating materials standard specification – general
design process – main dimensions of rotating machines –
electrical and magnetic losses – temperature – rise – class of duty
– limits of temperature rise.
Magnetic Circuit Calculations
Magnetic circuits of DC machines, round rotation AC
machines, salient poles AC machines and Transformer - Specific
magnetic and electrical loading – Factor influencing the specific
and magnetic loading – Magnetic leakages – magnetering curves
– calculation of magnetizing force for the air gap of rotating
machines and for teeth – leakage flux – leakage reactance –
armature slot leakage reactance
Design of Transformer
Important considerations – core and shell types – distribution
transformers and power transformers – core section – clearance –
yoke section – main dimension – single phase core type
transformers – three phase core type transformer – output
coefficient - voltage per turn – specific magnetic and electric
loading of transformer – Winding design – cross over, helix, disc
helix.
Design of dc machines
Important design consideration – number of poles – advantages
of large number of poles - air gap – armature slot – current
density – field system – commutator – design of large dc motor.
Specific magnetic and electric loading of dc machines.
Design of ac machines
AC machine design consideration – power
equation – separation of diameter and length – problems. Three
phase induction motor – important design consideration –
standard frames and stampings – gap length – flux density –
current density – power factor – efficiency – slot combination –
winding - design of 3 phase induction motors. Three phase
synchronous machines – important design consideration – radial
gap length – stator slot – stator coil – rotor construction – design
of 3 phase synchronous machines.
Hours
Marks
12
15
12
15
14
15
14
15
16
15
181 | P a g e
TEXT BOOK
Title
Author(s)
Course in electrical
machine design
Publishers
A.K.Sawhney
Edition
Dhanrai publishing
company
REFERENCE BOOKS
Sl.No
1
2
3
4
5
6
Title
principles of Electrical
Machine Design
Principles of Electrical
Machine Design
Design of Electrical
Machine
Electrical Machine Design
Electrical Machine Design
Performance and Design
of AC Machine
Author(s)
S.K.Sen
R.K.Agarwal
Mittle V.N
A.Nagoor Kani
C.Eswarlal
M.G.Say
Publishers
Edition
Oxford & IBH
S.K.Kataria &
Sons
Standard Book –
House
RBA Publications
Sonaversity
CBS Publisher &
Distributor
182 | P a g e
ELECTRICAL MACHINE DESIGN (ELECTIVE THEORY I)
MODEL QUESTION PAPER I
Part-A
Answer Any 15 Questions out of 20 given Questions
One Mark for Each question
1. List important specification of a DC machine
2. In which transformer Oil deteriorates faster.
3. Which shaft type is generally used in Water wheel generators.
4. What do you understand by the term continuous rating ?
5. Define leakage coefficient.
6. Mention the factors that affect the voltage regulation transformer and rotating machines.
7. In which machines, the air gap is minimum along the direct axis and increases as the pole tip
is approached.
8. What are the effects of leakage flux in electrical machines.
9. Why power transformers are designed to have maximum efficiency at or near full load
10. Mention the factors that affect the voltage regulation in transformer
11. Why distribution transformers are designed to have low leakage reactance
12. State the use of Distribution transformers.
13. Define specific magnetic loading.
14. What are the important considerations in selecting no of poles in DC machine?
15. Write the formula for the frequency of flux reversal in armature.
16. Mention the current density of small wire wound armature.
17. Why die-cast aluminum rotor bars are employed?
18. What is the effect of using a large air gap on the performance of an induction motor?
19. Mention the type of air gap in Turbo alternator.
20. State the factor that governs Diameter in ac machines.
Part-B
Answer either (A) or (B) of each Questions
12 Mark for Each question
21. A) What are the important deign and construction elements of a transformer?Discuss about them.
(or)
B) Discuss in detail about magnetic materials used for machine design.
22.A) Explain in detail about rotating machine leakage reactance.
(or)
B) Discuss about magnetizing force for teeth.
23.A) Estimate the main dimensions including winding conductor area of a 3-phase, Δ-Y core type
transformer rated at 300 kVA, 6600/440 V, 50Hz. A suitable core with 3-steps having a
circumscribing circle of 0.25 m diameter and a leg spacing of 0.4 is available. Emf per turn =
8.5V, δ= 2.5 A/mm², Kw =0.28, Sf=0.9 (stacking factor).
(or)
B) Discuss about helix type transformer winding.
24. A) Arrive the power equation of dc generator and dc motor.
(or)
B) Enumerate the advantages of large number of poles in dc machine.
25. A) Mention the important design considerations of3 phase induction motor& discuss about them.
(or)
B) Determine approximate values for the stator bore and the effective core length of a 55 KW,
415 V, three phase, star connected, 50 Hz four pole induction motor. Efficiency = 90%;power
factor =0.91; winding factor = 0.955.Assume suitable data wherever necessary.
183 | P a g e
ELECTRICAL MACHINE DESIGN (ELECTIVE THEORY I)
MODEL QUESTION PAPER II
Part-A
Answer ANY 15 Questions out of 20 given Questions
One Mark for Each question
1. What happens to resistivity of steel when silicon is added.
2. State two types of major classification of machine duty.
3. Compare the conducting property of copper and aluminum.
4. What is the function of core in electrical machines?
5. Define specific magnetic loading.
6. Mention the two components of armature leakage flux.
7. Define specific electrical loading.
8. What are parts of magnetic circuit in a rotating machine.
9. Which ducts are used in core for cooling purpose for number of steps 6 and above.
10.Why distribution transformers are designed to have maximum efficiency at loads quite lower than
full
load
11. What is window space factor.
12. Name the different types of windings used in transformers.
13. Which material is used for commutator?
14. Write average flux density in dc machine.
15. Why the brushes of machine are made of carbon?
16. List some of the advantages of choosing large number of poles in dc machine.
17. Write the value of the gap density of induction motor for general purpose.
18. Which type of construction is suitable for large motor?
19. Discuss the factor that determine the chose of air gap in an induction motor.
20. In which machines, the air gap is minimum along the direct axis and increases as the pole tip is
approached.
Part-B
Answer either (A) or (B) of each Questions
12 Mark for Each question
21 A) What are the important design and construction elements of rotating machines? Discuss
about them.
(or)
B) Enumerate the component losses in a transformer and rotating machine.
22. A) Discuss about magnetizing force for teeth.
(or)
B) Explain in detail about transformer leakage reactance.
23. A) Derive the power equation of 1 phase core type transformer.
(or)
B) Show that for minimum total I2 loss in a transformer, current densities of primary and
secondary should be approximately equal.
24 .A) Find the main dimensions of a 200kw, 250V, 6 pole, 1000 rpm generator. The maximum value
of flux density in the gap is 0.87 Wb/m² and the ampere conductors per meter of armature periphery
are 31000. The ratio of pole arc to pitch is 0.67 and the efficiency is 91 percent. Assume the ratio of
length of core to pole pitch =0.75.
(or)
B) What are the considerations to be taken into account in the choice of number and dimensions
of slots for a dc machine? Discuss about them.
25. A) Derive the power equation of ac generator and motor.
(or)
B) Mention the important design considerations of 3 phase synchronous machines and discuss
about them.
184 | P a g e
STATE BOARD OF TECHNICAL EDUCATION AND TRAINING, TAMIL NADU
SYLLABUS FOR DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING
L-SCHEME
Course Name
Subject Code
Semester
Subject Title
:
:
:
:
Diploma in Electrical and Electronics Engineering
23055
V Semester
ELECTRICAL CIRCUITS SIMULATION PRACTICAL
TEACHING AND SCHEME OF EXAMINATION
No. of weeks per Semester : 16
Instruction
Subject
Electrical Circuits Simulation
Practical
Hours /
Week
Hours /
Semester
5
80
Examination
Assessment marks
Board
Internal
Examination
25
75
Total
100
RATIONALE
All the Engineering applications are simulated through computers. They are tested and then
built using real components for commercial implementation. Simulation softwares are available for all
Engineering fields. Hers is an attempt to impart the knowledge of using simulation software for
realizing some of the Electrical and Electronics circuits for the Diploma students.
OBJECTIVES
On completion of this practical subkect, the students will be able to
-
Know the various aspects of a simulation software
-
Simulate and test the simple electrical and electronics circuits
-
Simulate and test the wave generating circuits
-
Simulate and prove the simple theorems
-
Simulate and test the performance characteristics of converters
-
To design and verify the results of various electric circuits using simulation software
(MATLAB)
185 | P a g e
23055 ELECTRICAL CIRCUITS SIMULATION PRACTICAL
DETAILED SYLLABUS
Contents : Practical
List of Experiments
(1) Square wave generation
(2) Sawtooth wave generation
(3) Triangular wave generation
(4) Sign wave generation
(5) Step response of RL & RC series circuits
(6) Verification of superposition theorem
(7) Verification of Norton’s theorem
(8) Verification of Thevenin’s theorem
(9) Simulation of half wave rectifier
(10) Simulation of full wave rectifier
(11) Simulation of single phase, half wave converter using SCR with R-load
(12) Simulation of single phase, semi converter with RL load
(13) Simulation of single phase full converter with RL load
(14) Simulation of 6 step Voltage Source Inverter supplying R-load
S.No
1
2
3
LIST OF EQUIPMENTS
PC – Pentium Dual Core
MATLAB 7.5 - Multi user
UPS 5KVA with half an Hour battery back up
Quantity Required
30
1
1
Allocation of Marks
Circuit Diagram (Manual Drawing)
Development & Simulation
Print out
Viva
Total
– 20 Marks
– 35 Marks
– 10 Marks
– 10 Marks
– 75 Marks
186 | P a g e
STATE BOARD OF TECHNICAL EDUCATION AND TRAINING, TAMIL NADU
SYLLABUS FOR DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING
L-SCHEME
Course Name
Subject Code
Semester
Subject Title
:
:
:
:
Diploma in Electrical and Electronics Engineering
24056
V Semester
MICROCONTROLLER PRACTICAL
TEACHING AND SCHEME OF EXAMINATION
No. of weeks per Semester : 16
Instruction
Subject
MICROCONTROLLER
PRACTICAL
Hours /
Week
Hours /
Semester
5
80
Examination
Assessment marks
Board
Internal
Examination
25
75
Total
100
RATIONALE
Controlling all the machineries are realized through Electronics. Without Electronics controlling
the machines, devices, systems are not possible. Microcontroller is the most reliable, cost effective
and flexible for all control activities. It plays major role in Machines, domestic gadgets, automobiles
etc. Here is an attempt to impart practical skill to use the familiar Intel 8051 microcontroller for some
simple applications.
OBJECTIVES
On completion of the following units of syllabus contents, the students must be able to
.. Use micro controller kits for simple applications
.. programme the 8051 controller to do simple arithmetic and logical operations
.. Understand serial data communication concepts.
.. Understand how to interface the devices
.. To use microcontroller for simple control applications
187 | P a g e
24056 MICRO CONTROLLER PRACTICAL
DETAILED SYLLABUS
Contents: Practical
List of Experiments
PROGRAMMING EXPERIMENTS
Minimum 12 Experiments are to be conducted
1. Introduction of Microcontroller Kit
2. Addition, Subtraction
3. Multi-byte addition
4. Multiplication and Division of two numbers
5. Finding the maximum value in an array
6. Arranging the given data in Ascending order
7. BCD to Hex conversion
8. Hex to BCD conversion
9. Hex to ASCII
10. ASSCII to Binary
11. Square Root of an given number
12. Least Common Multiple
13. Greatest Common Divisor
14. Parity bit generation
15. Program using I/Os in port 1
16. Program using timer / Counter.
17. Program using interrupt
188 | P a g e
INTERFACING WITH APPLICATION BOARDS
Minimum Six Experiments are to be conducted
1. Digital I/O
2. Matrix keyboard
3. Seven segment LED displays
4. . LCD Displays
5. . Traffic light
6. . 8 bit ADC and 8 bit DAC
7 . STEPPER MOTOR CONTROL
8 . DC motor control
9 . Lift control
10. Sending data through serial port between controller kits
11. Printer Interfacing with Microcontroller kit
Equipments Required
1
8051 Microcontroller Kit
18
2
Digital I/O Interface Board
1
3
3. Matrix keyboard Interface Board
1
4
Seven segment LED display Interface Board
1
5
LCD Display Interface Board
1
6
. Traffic light Interface Board
1
7
8 bit ADC and 8 bit DAC Interface Board
1
8
STEPPER MOTOR CONTROL Interface Board
1
9
DC motor control Interface Board
1
11
Lift control Interface Board
1
12
Sending data through serial port between controller kits
1
13
Printer Interface Interface Board.
1
189 | P a g e
STATE BOARD OF TECHNICAL EDUCATION AND TRAINING, TAMIL NADU
SYLLABUS FOR DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING
L-SCHEME
Course Name
Subject Code
Semester
Subject Title
:
:
:
:
Diploma in Electrical and Electronics Engineering
23074
V Semester
Control of Electrical Machines Practical
TEACHING AND SCHEME OF EXAMINATION
No. of weeks per Semester : 16
Instruction
Subject
Control of Electrical Machines
Practical
Hours /
Week
Hours /
Semester
5
80
Examination
Assessment marks
Board
Internal
Examination
25
75
Total
100
RATIONALE
Various control operations are to be performed on the
electrical machines
to suit the
industrial requirements. Technician are mainly employed to look after the control panels. To make
our students employable, they have to be trained in using various control components and circuits.
This subject fulfils that requirement.
OBJECTIVES
On completion of this practical subject the students will be able to

Make use of various types of control circuit elements like industrial switches, relays, timers,
solenoids, contactors and interlocking arrangement.

Construct various types of automatic starters for electrical motors

Construct control circuits for braking, jogging, reversing operations

To make use of PLCs for control applications

To program PLCs for controlling the motors
190 | P a g e
23074 CONTROL OF ELECTRICAL MACHINES PRACTICAL
List of Experiments
(1) Perform breakdown test and determine the dielectric strength of transformer oil
(2) Conduct acidity test on transformer oil
(3) Test the timing characteristic of thermal overload relay
(4) Wire and test the control circuit for jogging in cage motor
(5) Wire and test the control circuit for semi-automatic star-delta starter
(6) Wire and test the control circuit for automatic star-delta starter
(7) Wire and test the control circuit for dynamic braking of cage motor
(8) Wire and test the control circuit for two speed pole changing motor
(9) Wire and test the control circuit for automatic Rotor resistance starter
(10) Conduct test on speed control of DC motor using SCR
(11) Test the working of single phase preventer
(12) Wire and test the DOL starter using PLC
(13) Wire and test the Star-Delta starter using PLC
(14) Wire and test the control circuit for jogging, forward and reverse operations using PLC
(15) Wire and test the single phase preventer using PLC
(16) Wire and test the control circuit for automatic Rotor resistance starter using PLC
191 | P a g e
CONTROL OF ELECTRICAL MACHINES PRACTICAL
S.No
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
LIST OF EQUIPMENTS
Transformer oil Tester Kit
Acidity test kit
Thermal Overload Relay Tester
Control circuit for Jogging of 3 phase IM
Control Circuit for Semi-automatic Star –delta Starter
Control circuit for Automatic star-delta starter
Control circuit for dynamic braking of cage motor
control circuit for two speed pole changing motor
control circuit for automatic Rotor resistance starter
Speed control of DC motor using SCR
control circuit for single phase preventer
control circuit for DOL starter using PLC
control circuit for Star-Delta starter using PLC
Control circuit for jogging, forward and reverse
operations using PLC
Control circuit for single phase preventer using PLC
Control circuit rotor resistance starter using PLC
PLC
Quantity
Required
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
Scheme of Evaluation
Sl No.
Activity of the Candidate
Maximum
Marks to be
awarded
1
Drawing Correct Diagram and writing Details of the
Components/Equipments/Machines used
15
2
Making the correct circuit connections
15
3
Conducting the Experiment
4
-
Following the correct procedure
-
Taking the appropriate readings
-
Following the appropriate safety procedure
25
Tabulation of Readings
Interpretatin of Results
15
Graphical Representation (if required)
5
Viva-voce (Questions related to the given
experiments only)
5
Total Marks (External)
75
192 | P a g e
STATE BOARD OF TECHNICAL EDUCATION AND TRAINING, TAMIL NADU
SYLLABUS FOR DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING
L-SCHEME
Course Name
Subject Code
Semester
Subject Title
:
:
:
:
Diploma in Electrical and Electronics Engineering
23075
V Semester
Programmable Logic Controller Practical
TEACHING AND SCHEME OF EXAMINATION
No. of weeks per Semester : 16
Instruction
Subject
Hours /
Week
Hours /
Semester
5
80
Programmable Logic
Controller Practical
Examination
Assessment marks
Board
Internal
Total
Examination
25
75
100
23075 PROGRAMMABLE LOGIC CONTROLLER PRACTICAL
List of Experiments
(1) DOL Starter with single phasing prevention
(2) Changeover switch implementation with interlocking
(3) Star Delta starter
- single phasing prevention
- Adjustable star-delta transfer time
- Pre-settable Overload trip time
(4) Automatic Load transfer
- transfers load from one phase to another when one phase in a 3
- ph. system fails
- automatically restores when power is resumed
- time delays are effected to prevent action during short time failure
(5) Industrial sliding door automation
- Sequencing
- Open ¼ th Full width
- Wait for next go command
- Next open full
- wait for a time and close full
193 | P a g e
(6) Fire Alarm
- Multiple alarms
- sound alarm 1
- if not acknowledged, sound alarms 1 and 2
- similarly go upto 4 alarms
(7) Conveyor Belt sorting
- storing to left bin
- storing to right bin
- storing to exit bin
(8) Three floor Hoist controller
- Sequencing
- floor level detection
- Gate safety latch
(9) Burglar scare random lighting in building with variable timing
- The lights in each room are switched on at pre-determined intervals
and switched off at pre-determined time. The lighting is shifted from
area to area randomly to scare the burglars with a false fear of
presence of people.
(10) Analog input to PLC as a set of value for a comparator function block
- The output is multilevel illumination control. The input setting is by
means of a potentiometer in an analog input to the PLC. The
outputs turn on several groups of lamps to obtain desired level of
illumination.
(11) Heater control with PID function of the PLC
- A 1000 W water heater is controlled using the PID function of the
PLC. The temperature transducer is a Temperature transmitter with
4 to 20 mA output and Pt 100 Probe
(12) Round Table - Liquid filling System
Dropping of Reagents into test tubes. The feedback is from a
potentiometer. The program must ensure that the end limits of the
pot are never reached by carefully balancing the clockwise and
anti-clockwise revolution.
(13) Sequential timer for educational institute
Timings are alterable by supervisor while program is running. Pre andpost – Holiday sequence selectable
(14) PC monitoring of PLC operation. RS232 or USB communication for
status display of inputs and outputs..
194 | P a g e
(15) Slow speed motor control using PWM function of the PLC
- Slow speed 12V DC 18W Permanent Magnet Motor with a fly wheel is
controlled
with the PWM output and a feedback from a low resolution encoder
(16) Testing of RC snubber component for protection of PLC output from a
highly inductive components like solenoids or relays.
List of equipments
Sl.No
1
2
3
4
5
6
7
8
9
19
11
12
13
14
15
16
Name of the equipments
PLC with suitable No of I/O (various brands, Computer
interface cables software etc)
Push button switch limit switch, reed switch, photo electric
sensor, inductive proximity sensor Capacitive proximity sensor
PLC Power supply (SMPS if necessary)
DOL Starter
440V, 16A Contactor 3P,2NO+2NC
440V, 16A Contactor 4P,2NO+2NC
230V, 16A Contactor 3P,2NO+2NC
Industrial sliding door automation model
Conveyor Belt sorting model
Three floor Hoist controller model
Analog input to PLC (Addon blocks if needed)
LAMP LOAD for Burglar scare random lighting in building with
variable timing
Heater control with PID function of the PLC- 1000 W water
heater with accessories
Round Table - Liquid filling System (simple model)
Electric bell (230V Operation)
Slow speed 12V DC, Low Watt Permanent Magnet Motor
Quantity
5
5 Each
Required No
2No
5 No
2No
5N0
1 No
1 No
1 No
1 No
1 No
1 No
2 NO
1No
195 | P a g e
STATE BOARD OF TECHNICAL EDUCATION AND TRAINING, TAMIL NADU
SYLLABUS FOR DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING
L-SCHEME
Course Name
: Diploma in Electrical and Electronics Engineering
Subject Code
: 23076
Semester
: V Semester
Subject Title
: Electrical Machine Design Practical
TEACHING AND SCHEME OF EXAMINATION
No. of weeks per Semester : 16
Instruction
Subject
Hours /
Week
Hours /
Semester
Electrical Machine Design
Practical
5
80
Examination
Assessment marks
Board
Internal
Total
Examination
25
75
100
23076 ELECTRICAL MACHINE DESIGN PRACTICAL (Elective practical I)
List of Experiments
1. By simple experiment, verify the magnetic laws using Coil, permanent magnet and
Galvanometer.
2. Verify the rotating magnetic field with stator and ball.
3. Measure magnetic flux using flux meter.
4. Using Crawler test the windings.
5. Design a 1 phase 1 KVA ,230/15V core type transformer and assemble the core.
6. Design a 1 phase 1KVA, 230/15V shell type transformer and assemble the core.
7. Design 3 phase 1 KVA transformer and assemble winding, core, etc.,
8. Design 3 phase 1 KVA transformer (delta/star connected) and wind one coil set.
9. Design armature for 5 KWdc machine and insert one coil set.
10. Design field pole for 5 KWdc machine and assemble one pole and insert in the body.
11. Assemble the given dc machine (pole, inter pole, armature, commutator, brush etc).
12. Design and assemble ceiling fan.
13. Design and assemble a 3 HP induction motor.
14. Design and assembled 3phase 3HP synchronous motor.
15. Dismantle and assemble a 3 phase wound rotor induction motor.
16. Design and assembled 1phasesalient pole 5KVA alternator.
196 | P a g e
23076 ELECTRICAL MACHINE DESIGN PRACTICAL (Elective practical II)
List of Equipments Required
1. Permanent Magnets
-
2 Nos
2. Galvanometers
-
2Nos
3. Flux meter
-
1No
4. Growler
-
1No
5. 3Phase induction motor stator with winding
-
1No
6.1KVA Single phase 230/15 loading Transformer
-
1No
7. 1KVA 3 phase Transformers
-
3Nos
-
12Kg
-
9Nos
8. 5KW DC armature without winding
-
1No
9. 5KW DC machine with inter poles
-
2Nos
-
2sets
11. 5KVA Single phase alternator
-
1No
12. 3phase 3HP wound rotor induction motor
-
2Nos
13. Celling Fans
-
2Nos
14. Motor coil winding machines
-
2Nos
1. Circuit Diagram
-
20marks
2. Connection
-
20marks
3. Readings Taken & Tabulation
-
10marks
4. Calculation & Result and Graph if any
-
20marks
5. Viva
-
5marks
-
75marks
1. Design Particulars / Theory behind exercises
-
30marks
2. work menship & finishing / carrying of the test & finding the result
-
40marks
3. Viva
-
5marks
(or)
E & I type stampings for 1KVA Transformer
Primary Coils & Secondary Coils for 1KVA Transformer
10. Stator with winding, rotor and end covers with
bearing of a 3HP cage induction motor
Allocation of Marks
For exercises requiring circuit diagram and connection
Total
For other exercises
197 | P a g e
Total
-
75marks
STATE BOARD OF TECHNICAL EDUCATION AND TRAINING, TAMIL NADU
SYLLABUS FOR DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING
L-SCHEME
Course Name
Subject Code
Semester
Subject Title
:
:
:
:
Diploma in Electrical and Electronics Engineering
23061
VI Semester
Power System - II
TEACHING AND SCHEME OF EXAMINATION
No. of weeks per Semester : 16
Instruction
Subject
Hours /
Week
Hours /
Semester
Power System - II
6
96
Examination
Assessment marks
Board
Internal
Total
Examination
25
75
100
TOPICS AND ALLOCATION OF TIME
UNIT
TOPIC
TIME (Hours)
I
Distribution
18
II
Industrial Drives
16
III
Electric Traction
16
IV
Illumination
18
V
Electric Heating & Welding
16
Revision & Test
12
TOTAL
96
RATIONALE
Distribution system is that part of power system which distributes power to the consumers for
utilisaion. So to have adequate knowledge in distribution and utilization of Electrical energy it
becomes necessary to include this subject.
OBJECTIVES
To Understand
 Substation arrangements
 Distribution -classification and scheme of connection
 Drives-Suitability for different applications
 Track Electrification-Traction mechanics
 Traction motors and control
 Illumination -Design of lighting scheme-sources of light
 Electric Heating- Different methods.
 Electric furnaces and Temperature control
 Electric welding and welding equipments
198 | P a g e
23061 POWER SYSTEM - II
DETAILED SYLLABUS
Contents : Theory
Unit
I
Name of the Topic
DISTRIBUTION
Substation:
Introduction-Sub stations-classification of sub stations-Indoor and out
door S.S - Gas insulated S.S-comparisions-Layout 110/11KV Sub
station and 11KV/400V Distribution Substation- sub station
equipments-Busbar- Types of busbar arrangement -Advantages and
Disadvantages.
Hours
Marks
18
15
16
15
16
15
Distribution:
Distribution system-Requirements of a Distribution system-parts of
Distribution system-Classification of Distribution systems-comparision
of different distribution systems (A.C and D.C) -A.C Distribution Types-connection schemes of Distribution system-A.C Distribution
calculations-Calculation of voltage at load points on single phase
distribution systems (With concentrated load only)- Distribution fed at
one end, both ends and ring mains-problems- Three phase, four wire,
Star connected unbalanced load circuit- Problems-consequence of
Disconnection of Neutral in three phase four wire system (illustration
with an example)
UNIT II - INDUSTRIAL DRIVES
II
Introduction-Electric drive- Advantages-parts of Electric drivesTransmission of power-Types of Electric drives-Individual, group and
multimotor drives - Advantages and disadvantages of Individual and
group drive -Factors governing the selection of motors-Nature and
classification of load Torque-Matching of speed Torque characteristics
of load and motor-Standard ratings of motor- classes of load duty
cycles-Selection of motors for different duty cycles-Selection of motors
for specific application-Braking- Features of good braking systemTypes of Braking-Advantages of- Electric braking-Plugging,Dynamic
and Regenerative braking-As applied to various motors.
ELECTRIC TRACTION
III
Introduction-Traction systems-Advantages and Disadvantages of
Electric Traction.
System of Track Electrification:
Methods of supplying power-Rail connected system and over head
system-O.H. equipments-contact wire, catenary and droppers- current
collection gear for OHE-Bow and pantograph collector-Different
systems of Track Electrification-Advantages of singlephase low
frequency A.C. system-Booster Transformer-Necessity- Methods of
connecting B.T-Neutral sectioning.
Traction Mechanics:
Units and notations used in Traction mechanics-Speed time curve for
different services - simplified speed time curve-Derivation of
maximum speed-crest speed, Average speed, Schedule speed
(definitions only)-Tractive effort and power requirement- Specific
energy output- specific energy consumption.
199 | P a g e
Unit
Name of the Topic
Traction motors and control:
Desirable characteristics of Traction motors-Motors used for
Traction purpose-Methods of starting and speed control of D.C
Traction motors-Rheostatic Control-energy saving with plain rheostatic
control- series-parallel control- Energy saving with series parallel
starting - Shunt Transititon -Bridge-Transition- Drum control-contactor
type bridge Transition controller - Metadyne control-multiple unit
control -Regenerative braking.
Hours
Marks
18
15
16
15
Recent trends in Electric Traction-Magnetic Levitation (MEGLEV)Suspension systems
IV
ILLUMINATION
Introduction - Definition and units of different terms used in
illumination-plane Angle, Solids angle, Light,. Luminous flux,
Luminous Intensity, Luminous Efficacy candle power, Lumen,
Illumination, M.S.C.P, M.H.C.P, M.H.S.C.P- Reduction factor,
Luminance, glare Lamp efficiency. Space-height ratio, Depreciation
factor
Utilization factor, waste light factor, Absorption factor,
Beam factor, Reflection factor- Requirements of good lighting systemLaws of Illumination-problems. Types of lighting scheme- Factors to
be considered while designing lighting scheme- Design of lighting
Scheme (Indoor and outdoor)- Problems- Lighting systems- Factory
lighting, Flood lighting, Street lighting.
V
Sources of light-Arc lamp, Incandescent lamp, Halogen Lamp, Sodium
vapour lamp, High pressure mercury vapour lamp, Fluorescent Tube Stroboscopic Effect - Energy saving lamps (C.F.L and L.E.D lamps)- Energy saving consideration for fluorescent lamp.
ELECTRIC HEATING AND WELDING
Electric Heating
Introduction -Advantages of Electric heating-modes of heat transferclassifiction of Electric Heating - Power frequency electric heatingDirect and Indirect
resistance heating-Infrared heating-Arc
heating –High frequency Electric heating-Induction heating –Eddy
current heating and Dielectric heating.
Electric furnaces:
Resistance furnace-Requirements of Heating elements-commonly
used heating element materials-Resistance furnace for special
purposes-Temperature control of
resistance furnace-Arc furnace -Direct and Indirect Arc furnaceTemperature control of Arc furnace-Reasons for employing low
voltage and high current supply -Induction furnace-Direct and Indirect
core type Induction furnace-coreless Induction furnace-Power supply
for coreless Induction furnace.
Electric welding:
Introduction-Types of Electric welding-Requirements of good weldPreparation of work -Resistance welding- Butt welding, Spot welding,
Seam welding, Projection
welding and Flash welding-Arc
welding-Carbon Arc welding,metal Arc welding, Atomic hydrogen Arc
welding, Inert
gas metal arc welding-Comparision between
Resistance and Arc welding. Radiation welding -Ultrasonic welding,
Electron beam
welding, LASER beam welding-Electric welding
equipments (A.C. and D.C).
200 | P a g e
REFERENCE BOOKS
Sl.No.
1
2
3
4
5
6
7
8
Name of the Book
A Course in Electrical
Power
Electric Power,
A Textbook
Power
in
Author
JB Gupta
SL Uppal
Electric
Modern Electric Traction
Electrical
Power
Distribution System
Soni & Gupta,
H Partab,
AS Pabla,
Fundamentals of Electrical GK Bubey,
Drives
Utilization of Electric Power
NV Suryanarayana,
Electric Drives
Publisher
Katson Publishing House,
New Delhi
Khanna Publishers, New
Delhi
Dhanpat Rai & Sons, Delhi
Vedam Subramaniam,
Dhanpat Rai & Sons, New
Delhi
Tata McGraw Hill
Publishing Co, New Delhi
Narosa Publishing House,
New Delhi
Tata McGraw Hill
Publishing Co, New Delhi
New Age International,
New Delhi
201 | P a g e
MODEL QUESTION PAPER – 1
Time: 3 Hrs
Note: (i)
(ii)
Max. Marks: 75
Part ‘A’ Questions carry 1 mark each and answer for any 15 questions.
Part ‘B’ questions carry 12 marks each and answer all questions by
selecting ‘either’ or ‘OR’
PART ‘A’
1.
What is Indoor Substation?
2.
Name the types of busbar arrangement.
3.
List any two advantages of Ring busbar system
4.
Write the use of Instrument transformer in substation.
5.
Give any two advantages of Electric drives.
6.
What is multi motor drive?
7.
What is continuous rating?
8.
Give any two advantages of Electric braking.
9.
Give any two requirements of Ideal traction system
10.
What are the methods of supplying power to electric traction?
11.
What is tractive effort?
12.
Give any two advantages of regenerative braking
13.
Define space height ratio
14.
Define Depreciation factor
15.
Define Illumination
16.
What is stroboscopic effect?
17.
Give any two advantages of Electric heating
18.
What is meant by direct resistance heating?
19.
Give any two requirements of heating elements
20.
What are the types of Arc welding
202 | P a g e
PART ‘B’
21
a.
b.
22
a.
b.
23
a.
b.
c.
d.
24
a.
b.
25.
a.
b.
Diagrammatically represent the layout of a typical 110 KV / 11 KV substation
with all details.
(OR)
Compare the volume of conductor materials required in Three phase, four wire
system with D.C. two wire with one conductor earthed.
Explain with necessary sketch, matching of speed – Torque characteristics of
load and motor.
(OR)
Explain how regenerative braking is applied to D.C.Series and shunt motor.
List the disadvantages of single phase low frequency A.C. traction system.
Write short notes on Pantograph collector
(OR)
With an illustration explain the function of Booster Transformer in traction.
Explain plain Rheostatic method of starting D.C. traction motors.
State and prove two laws of illumination
(OR)
Explain with a sketch working of sodium vapour lamp.
With a neat sketch explain ajax-wyatt vertical core type furnace
(OR)
Explain Electron beam welding
203 | P a g e
MODEL QUESTION PAPER – 2
Time: 3 Hrs
Note: (i)
(ii)
Max. Marks: 75
Part ‘A’ Questions carry 1 mark each and answer for any 15 questions.
Part ‘B’ questions carry 12 marks each and answer all questions by
selecting ‘either’ or ‘OR’
PART ‘A’
1.
What is outdoor substation?
2.
List any two advantages of double busbar arrangement.
3.
Classify the distribution system based on character of service voltage
4.
What is Power factor correction substation?
5.
What is individual drive?
6.
Name any two types of enclosures used in drives
7.
What is Intermittent rating?
8.
What is meant by plugging?
9.
Write any two advantages of Electric Traction.
10.
What is Neutral section?
11.
What is adhesive weight?
12.
What is the purpose of catenary in overhead equipments?
13.
What is luminous efficacy?
14.
What is the advantage of C.F.L. over fluorescent tube?
15.
Give any two requirements of good lighting system.
16.
What is meant by semi-direct lighting?
17.
What is convection mode of heat transfer?
18.
List any two applications of dielectric heating.
19.
Give any two materials used for Heating element?
20.
What type of D.C. Generator is used in welding and why?
204 | P a g e
PART - B
21
a.
b.
22
23
24
a.
Explain different types of drives used in Industrial loads.
(OR)
b.
Choose the motor suitable for the following applications. Give reasons
for your choice.
(i) Cement mill(ii) Belt conveyors (iii) Centrifugal pump
(iv) Lift and hoists
(v) Rolling mill (vi) Paper mill
a.
Derive from basic principles for the crest speed using trapezoidal speed
time curve, State all your assumptions clearly with relevant units.
(OR)
b.
Explain contactor type bridge transition controller.
a.
b.
What are the requirements of good lighting system
Explain stroboscopic effect and how it is eliminated in fluorescent tube light.
(OR)
Explain the principle of an incandescent lamp.
Explain the factors to be considered while designing lighting schemes.
c.
d.
25
Draw and explain double bus bar arrangement and list its advantages
(OR)
A single phase distributor has loop resistance of 0.3 ohm and a
reactance of 0.4 ohm. The far end of the distributor has a load current of 80 A and
power factor 0.8 lagging at 220 V. The mid-point ‘C’ of the distributor has a load
current of 50 A at power factor 0.707 lagging with reference to voltage ‘C’. Calculate
the sending end voltage and power factor.
a.
b.
Explain Dielectric heating and Eddy current heating
(OR)
Write short notes on (i) butt welding (ii) Spot welding (iii) Seam welding
(iv) projection welding (v) Flash welding
205 | P a g e
STATE BOARD OF TECHNICAL EDUCATION AND TRAINING, TAMIL NADU
SYLLABUS FOR DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING
L-SCHEME
Course Name
Subject Code
Semester
Subject Title
:
:
:
:
Diploma in Electrical and Electronics Engineering
23062
VI Semester
ELECTRICAL ESTIMATION AND ENERGY AUDITING
TEACHING AND SCHEME OF EXAMINATION
No. of weeks per Semester : 16
Instruction
Subject
Hours /
Week
Hours /
Semester
5
80
ELECTRICAL ESTIMATION
Examination
Assessment marks
Board
Internal
Examination
25
75
Total
100
AND ENERGY AUDITING
TOPICS AND ALLOCATION OF TIME
UNIT
I
II
III
IV
V
TOPIC
TIME (Hours)
Systems of Internal Wiring, Wire size, Fuses, Earthling and
Testing of installation
Domestic, Commercial and Industrial Installation Estimate
14
General Aspects of Energy Auditing
15
13
Squirrel Cage Motors
Transformers and Cables
Lighting and Pumping Systems
13
13
REVISION AND TEST
12
TOTAL
80
206 | P a g e
23062 ELECTRICAL ESTIMATION AND ENERGY AUDITING
DETAILED SYLLABUS
Contents : Theory
Unit
I
Name of the Topic
Systems of Internal Wiring, Wire size, Fuses, Shock, Earthling
Hours
Marks
and Testing of installation
Conventional symbols for various wiring items, accessories etc.
A brief study of important Indian Electricity Rules (1956)
14
15
13
15
Internal wiring, Wire size, Fuses, Shock
Wiring systems - Types of wiring - points to be considered for
selection of wiring - comparison - Looping back system and Joint box
system and tree system - Position of switches, cutouts, main switch
board, sub-distribution boards. Considerations for selecting wire size size of conductors/cable used for Domestic installation, Service
connection, Distributors- Power rating of some important house holds
electrical appliances – selection of Fuses.
Earthing and Testing of Installation
Necessity - different methods - pipe earthing and plate earthing
- materials required - requirements of good earth electrode neutral
wire - difference between neutral wire and earth wire - connection with
earth - value of earth resistance and factors on which it is dependent points to be remembered while providing earth - ELCB system Earthing of domestic fitting and appliances - Industrial Earthning Substation Earthing.
Insulation Resistance test between earth and conductor and
between conductor - Leakage test - Insulation Resistance of motors
and other equipment - Factors to be considered for checking electrical
installations - Testing of wiring installation: introduction, verification of
polarity, effectiveness of earthing, insulation resistance, earth
resistance- periodical testing - testing of UG cable - Guidelines for
installation of fitting switches, light, fans, earthing of appliances and
electrical machines.
Domestic, Commercial and Industrial Installation Estimate
II
Conditions and Requirements for Domestic, Commercial and
Industrial Installation - steps to be followed in preparing electrical
estimate (domestic, industrial and agricultural installation)
207 | P a g e
Unit
Name of the Topic
Hours
Marks
15
15
13
15
Estimate the quantity of material required for
(1) Residential single bed room Flat (1BHK).
(2) Industrial power wiring having 4 or 5 machines.
(3) Erection of one no. 15hp induction motor in Saw mill / Flour mill.
(4) Irrigation Pump motor (5hp) wiring.
(5) Computer centre having 10 computers, a/c unit, UPS, light and fan.
(6) Street Light service having 12 lamp light fitting
General Aspects of Energy Auditing
Introduction - Types of Energy Auditing - Benefits of Energy
III
Audit - Requirements to conduct Energy Audit - Methodology for
Energy Audit - Energy Audit Report – Energy Conservation Building
Code.
Squirrel Cage Motors
Operation of Induction Motor - Special Design feature for high
efficiency motor - Torque - Speed Characteristics - Operating
parameters of motor - Losses - Measurement of efficiency Determination of energy saving - determination of Load - Assessment
of economic feasibility - choice of energy efficient motor - Effect of
variation of voltage on the performance of motor - effect of load
variations on efficiency and power factor - unbalanced phase voltage
- insulation system.
Transformers and Cables
IV
Transformers
Introduction - Transformer Losses - Fixed Losses - Load
Losses. Evaluation of Transformer Losses - Case Studies - reduction
in Transformer Losses. Energy Conservation Building Code mandatory requirements - maximum allowable power transformer
losses.
HT and LT Cabels
Introduction- Selection of Cable - Construction - Insulation inner sheath - armouring - outer sheath - specifications - TestsInstallation. Economics in selection of cables.
208 | P a g e
Unit
Name of the Topic
Hours
Marks
13
15
Edition
Year
First
2010
Lighting and Pumping Systems
V
Lighting Systems
Colour Rendering Index (CRI), Aspects of Lighting System
Designing. Installed Load Efficacy Ratio. Various means for Energy
Saving - use of natural day light - reduction in light fixture - high
efficiency lamps and luminaries - effect of reduction in supply voltage electronic ballasts - timers and occupancy sensors - Fluorescent tube
lights - CFL lamps - Lighting Control - Exterior Lighting control Interior Lighting power - Installed Interior Lighting Power - Exterior
Lighting Power.
Pumping Systems
Centrifugal Pumps - Pumping System characteristics - static
head vs Flow. Pump curves - pump operating point - Factors affecting
pump performance - Matching pump and system head-flow
characteristics - effect of over sizing the pump - energy loss in
throttling. Efficient pumping system operation - effect of speed
variation - effects of impeller diameter change - pump suction
performance. Flow Control Strategies - pump control by varying
speed - Pumps in parallel switched to meet demand- Stop/Start
Control - Flow Control Valve - By-pass control - Fixed Flow reduction Variable Frequency Drives. Energy Conservation Opportunities in
Pumping Systems.
TEXT BOOK
Sl
No.
Title
Author(s)
Publishers
Electrical Wiring,
Estimating and Costing
Dr.S.L.Uppal.
Khanna Publishers.
1
2
Electrical Design
Estimating and Costing.
K.B.Raina &
S.K.Battacharya.
Rajiv Shankar.
3
Energy Auditing in
Electrical Utilities
New age
international (p)
limited. Publishers
Viva Books
ENERGY
ENGINEERING AND
MANAGEMENT
AMLAN
CHAKRABARTI
4
PHI Learning Pvt Ltd
Second
Printing
2011
209 | P a g e
23062 ELECTRICAL ESTIMATION AND ENERGY AUDITING
Model question paper – I
Time : 3 Hrs.
Max. Marks: 75
Note: Part A questions carry each 1 mark and answer any Fifteen questions.
Part B questions carry each 12 marks and answer all questions by selecting either “a” or “b”.
Part – A
1.What are the various types of wiring used in wiring installation? Explain any one briefly .
2.What are the factors to be considered while determining the size of conductors?
3.State the difference between Neutral and Earth wires?
4.Describe the method of plate earthing ?
5.What is meant by testing of installation ? Explain any one of the testing?
6.Explain the points to be remembered while providing earth.
7.Write a note on guidelines for installation of switches ,lights &fans
8. Differentiate between Domestic and Industrial consumers.
9. What is Energy Audit?
10. What are the different types of Energy Audit?
11. What are the points covered in an Energy Audit Report?
12. Classify the Loads for induction motors in the industries with examples
13. What are the various losses in Transformer ?
14. What are the aspects to be considered in slectiong the Cables
15. Differentiate between Powrer cables and Control Cables.
16. What are the different tests conducted on calbles ?
17. Distinguish between Lux and Lumens
18. Compare CFL lamps with other lamp types in terms of energy saving.
19. Draw the Characteristics curves of a pumping system.
20. What are the effects of over sizing the Pumps ?
PART- B
21.a. Explain in detail Looping Back, Joint Box and Tree systems with diagrams.
OR
b. Explain the requirements of a good earthing system.
22. a. .A residential building is to be electrified with surface PVC conduit concealed type of wiring
Give the schedule of material. The details of fittings are as follows:
210 | P a g e
Name of the
Room
Size
No. of Tube
lights
No . of Fans
Drawing
Room
Kitchen
5m*6m
2
1
No. of
ordinary
lamps
1
No .of
Plugs
2m*4m
1
1
-
1
Bed Room
Bath Room
Toilet
4m*4m
1m*1m
1m*1m
1
-
1
-
1
1
1
1
1
-
1
Assume necessary data as per IE rules and mentioned them clearly.
OR
b .Workshop of size 25m*10m . A 15HP, 400V,50 Hz induction motor has to be installed for
running a saw mill. Estimate the quantity of materials required with their specification. Assume
surface metal conduit wiring and necessary data as per the IE rules.
23.a. Explain the Methodology for Energy Audit
OR
b. A 50 KW induction motor with 86% present full load efficiency is being considered for
replacement by an 89% efficiency motor. What will be the savings in Energy if the motor
works for 6000 Hrs. per year and cost of energy is Rs.4.50/KWh?
24. a. Which of the following Transformers is preferable ?
Life of both the transformers is 15 years and the transformer remains on load for 8500 Hrs. in
a year. Energy cost is Rs.5.25.
Purchase Price
No Load Losses
Load Losses
Efficiency at rated Capacity
Transformer-I
Rs. 3 Lacs
1650 W
9500 W
70 %
Transformer-II
Rs.3.15 Lacs
1450 W
7500 W
70 %
OR
b. Explain the Economics involved in the Selection of Cables.
25. a. Explain the Characteristics of Different types of Lamps.
OR
b. Explain Energy conservation opportunities in pumping systems.
211 | P a g e
23062 ELECTRICAL ESTIMATION AND ENERGY AUDITING
Model question paper – II
Time : 3 Hrs.
Max. Marks: 75
Note: Part A questions carry each 1 mark and answer any Fifteen questions.
Part B questions carry each 12 marks and answer all questions by selecting either “a” or “b”.
Part – A
1.Describe the method of measuring insulation resistance of an installation?
2.What is meant by wiring &Explain any two methods of wiring?
3.Explain any two types of fuses used in electrical installation?
4.What is service connection? Explain how underground service connections are given to the
consumer?
5. What are the requirements for a domestic electrical installation ?
6. Briefly explain the steps involved in preparing electrical estimate for industrial consumers.
7. Differentiate between Commercial and Industrial consumers.
8. List the exclusive aspects of industrial electrical installations.
9. What are the benefits from Energy Audit?
10. What is the significance of knowing Energy Costs?
11. What are the effects of load variation on efficiency of induction motors?
12.. Define Service Factor in motors.
13. What is the significance of Transformer losses in Energy savings ?
14. List any three points for energy savings in Transformers
15. What is called Colour Rendering Index (CRI) ?
16. Define Lamp Circuit Efficacy
17. What is the effect of reduction in supply voltage on energy consumption ?
18. What is the effect of impeller diameter change in a centrifugal pump ?
19. Write three points for energy savings in cables
20. What is the significance of Insulation types in the energy saving in cables
PART – B
21. a. Explain the various factors to be considered in selecting the wire size of conductors/cables
used for domestic installations.
OR
b. State the importance of Insulation Resistance. Explain Insulation Resistance test between
earth and conductor and between conductors.
212 | P a g e
22.a. A Residential single bed room flat is to be electrified with PVC conduit concealed type of wiring
.Estimate the quantity of materials required with specifications. The details of the fittings are
as follows:
Room
Size
No. of tube
light points
No. of
ceiling fans
Hall
Bed Room
Kitchen
Bath Room
Toilet
5.0m*6.0m
4.0m*4.0m
4.0m*2.0m
1.5m*1.5m
1.5m*1.5m
2
1
1
-
1
1
-
No. of
ordinary light
points
1
1
1
1
1
No .of Plug
points
2
1
1
-
b. Prepare an Estimate for installing a 5 HP irrigation pump motor.
23. a. Discuss in detail the scope of Energy Audit.
OR
b. Explain the various factors to be considered for energy saving in induction motors.
24. a. Explain the ways to reduce Transformer Losses.
OR
b. Explain the various parameters to be specified and their significance while ordering for a cable.
25. a. Explain the aspects of Lighting System Designing
OR
b. Explain the various parameters to be considered in evolving an energy efficient pumping
system.
213 | P a g e
STATE BOARD OF TECHNICAL EDUCATION AND TRAINING, TAMIL NADU
SYLLABUS FOR DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING
L-SCHEME
Course Name
Subject Code
Semester
Subject Title
:
:
:
:
Diploma in Electrical and Electronics Engineering
23081
VI Semester
Power Electronics
TEACHING AND SCHEME OF EXAMINATION
No. of weeks per Semester : 16
Instruction
Subject
Hours /
Week
Hours /
Semester
5
80
Power Electronics
Examination
Assessment marks
Board
Internal
Examination
25
75
Total
100
TOPICS AND ALLOCATION OF TIME
UNIT
TOPIC
TIME (Hours)
I
Thyristor family, trigger and commutation circuits
14
II
Phase controlled rectifiers
14
III
Choppers and Inverters
14
IV
Control of DC Drives
13
V
Control of AC Drives
13
Revision/Test
12
Total
80
RATIONALE :
Developments in Electronics have their own impact in other fields of Engineering. Today all
the controls and drives for the electrical machines are formed by electronic components and there are
many electronic devices available to handle eclectic power in terms Kilo-Amps and Kilo-Volts. This
subject gives a comprehensive knowledge base about the devices and circuits used in electrical
power control.
214 | P a g e
OBJECTIVES:
On completion of these units, the student should be able to:






























Explain the characteristics of Thyristor family.
Draw the SCR trigger circuits.
Explain the working of trigger circuits.
Draw the commutation circuits.
Explain the operation of commutation circuits.
Explain the principle of advanced trigger circuit using IC TCA 785.
State the applications of trigger and commutation circuits.
Explain the operation of microcontroller based trigger circuit.
Familiarize the phase controlled rectifier.
Know the applications of the phase controlled rectifier.
Draw and describe the working of half wave controlled rectifier circuit with R and R L load.
Draw and explain the working of single phase semi converter bridge and Single phase full
Converter Bridge for RL load.
Draw and explain the operation of single phase and three phase full converter with RL load.
Familiarizes the dual converter.
Familiarizes the twelve pulse converter.
Study the complete protection of converter circuits.
Understand the working choppers and inverters.
Know the applications of choppers and inverters.
Explain the various types of choppers with circuit diagram.
Describe the various methods of inverters with circuit diagram.
Understand the control of DC Drives.
Know the various methods of speed control of DC drives.
Learn the different types of power factor improvement in phase controlled Converter.
Study the closed loop control of DC drives.
Familiarize the control of AC drives.
Know the torque - speed characteristics of three phase induction motor.
Study the speed control of three phase induction motor.
Study the speed control of three phase induction motor using micro computer based PWM.
Understand the closed loop control of AC drive.
Know the operation of single phase and three phase cyclo converter.

Understand the micro controller based fault diagnosis in three phase thyristor converter circuits.

Study the need of DSP based motor control.
215 | P a g e
23081 POWER ELECTRONICS
DETAILED SYLLABUS
Contents : Theory
Unit
I
II
III
IV
Name of the Topic
Thyristor family, trigger and commutation circuits
Thyristor family (Review) SCR rating and their importance - circuit,
working characteristics and applications of SCR, DIAC, TRIAC, IGBT
and MOSFET, only symbols of SCS,SUS, SBS, LASCR and GTO.
Gate trigger circuits – Requirements – Types of triggering circuits –
Pulse transformer in trigger circuits – R firing – RC firing –
Synchronised UJT firing (Ramp triggering) – IC based advance
triggering circuits for SCR & TRIAC (using IC TCA 785) –
Microcontroller based Trigger circuits, Block diagram & flow chart.
Commutation circuits – SCR turn off methods – Natural commutation
– Forced commutation – class A, class B, class C, class D, class E
and class F.
Unit II – Phase controlled rectifiers
Introduction – Application of phase controlled rectifier – Explanation of
half wave controlled rectifier with resistive, Inductive loads – Effect of
free wheeling diode – single phase semi converter controlled bridge
with R load, RL load - single phase fully controlled bridge with RL load
– Input power factor – Three phase half controlled bridge with RL load,
Three phase fully controlled bridge with RL load – Single phase dual
converter – Twelve pulse converter – power factor improvements,
classification – Extinction angle – control of single phase converter –
Reactive power of converter – Complete protection of thyristors
against surge current, surge voltage, dv/dt, di/dt protection in three
phase bridge circuit.
Choppers and Inverters
Choppers – Introduction – applications – principle of chopper –
control strategies – chopper circuit classification – step up chopper –
Morgan chopper – Jones chopper – chopper using MOSFET – DC to
DC converter without Isolation, Buck, Boost, Buck Boost, Cuk
converters – DC to DC converter with Isolation three configurations,
Fly back, Forward, Push Pull converters.
Inverters – Introduction – Applications – classifications - parallel
inverter – Half bridge inverter, Full bridge inverter – Modified MC
Murray full bridge inverter, MC Murray Bedford full bridge inverter –
Three phase bridge inverter under 180° mode, 120° mode operations
– pulse width modulated inverters, (single pulse, multiple pulse,
sinusoidal pulse) UPS, online , offline - Control circuit for SMPS.
Control of DC Drives
Introduction – History of DC drive – applications – basic DC motor
speed equation – operating region – armature voltage control- field
current control – constant torque and constant HP regions – circuit
diagram, output waveforms and output equation of – separately
excited DC motor in – a) Single phase full converter drives b) Single
phase dual converter drives c) Three phase semi converter drives –
power factor improvement in phase controlled converter – phase
angle control – semi converter operation of fully controlled converter –
Asymmetrical firing – DC chopper for series motor drive – Four
quadrant control of DC Motor – DC to DC converter using MOSFET
and IGBT – Block diagram, Explanations of closed loop control of DC
drives - phase locked loop control of DC drives – Microprocessor
based closed loop control of DC drives.
Hours
Marks
14
15
14
15
14
15
13
15
216 | P a g e
Unit
V
Name of the Topic
Contorl of AC Drives
Introduction – Applications – Torque speed characteristics of three
phase induction motor – speed control of Induction Motor – Stator
Voltage control – Variable frequency control – necessity of maintaining
V/F ratio constant scalar and vector control of drives (Tacho) – Rotor
resistance control
Inverters for variable voltage and variable frequency control – Speed
control by rotor resistance for slip ring Induction motors – Static
scherbius drive (slip power recovery scheme) - closed loop control of
AC drive block diagram – Micro computer based PWM control of
Induction Motor – introduction to cyclo converter with simple circuit.
Various Fault Diagnosis in Three phase thyristor converters using
Micro controller – converter circuit – phase failure detecting circuit,
Detection of thyristor on-off status and short circuit condition.
ASICs for motor control applications –Need for DSP based motor
control – Motor control peripherals
Hours
Marks
13
15
TEXT BOOK
Sl. No.
1
Name of the Book
Power Electronics
Author
MD Singh
KB Dhanchandaniata
Publisher
McGraw
Hill
Publishing
Company
New
Delhi
seventeenth reprint 2005
REFERENCE BOOKS
Sl.
No.
Name of the Book
Author
Publisher
Mohan Underland
Robbins
G K Dubey
2
Power Electronics – Converter
Applications and Design
Fundamentals of Electrical
Drives
Fundamentals of Power
Electronics
S Rama Reddy
3
Power Electronics
Power Electronics
Dr P S Bimhra
P C Sen
Power Electronics
Muhammad
H.Rashid
Power Electronics
M.S. Jamil Asghar
Power Electronics Devices &
Circuits
Power electronics principle and
applications
V. Jagannathan
John Wiley and Sons,
NewYork 2nd Edition
Narosa Publishing House,
New Delhi Fourth reprint
2004.
Narosa Publishing House,
New Delhi, First Reprint
2002.
Khanna Phublisher- 1991
Tata McGraw Hill Publishing
Company New Delhi, 24th
repriny 2005
Prentice-Hall of India Pvt.
Ltd. New Delhi- 110001. 3rd
Edition-2005.
E.E. Edition PHI, 7th print
July 2009
E.E. Edition 2nd Edition.
Josep vithayathil
TMH edition.
1
4
5
6
7
8
9
217 | P a g e
POWER ELECTRONICS
Model Question Paper -1
Part A - Answer any fifteen Questions
15 x 1 = 15 Marks
1. Draw the symbol of MOS controlled Thyristor.
2. Define holding current of SCR.
3. Explain dv/dt rating.
4. What is class- B commutation?
5. What are the effects of free wheeling diode?
6. Define input power factor.
7. What is Extinction angle control of single phase converter?
8. What do you mean by complete protection of thyristor?
9. Define Chopper.
10. What are the applications of Chopper?
11. How many SCR’s are used in parallel inverter?
12. What is the use of UPS?
13. Write the basic DC motor speed equation.
14. What are the advantages of power factor improvement?
15. What is the meaning of Asymmetrical firing?
16. What are the advantages of Microprocessor based DC- drive?
17. What is a Cyclo converter?
18. What are the advantages of AC drive?
19. What is the role of Microcontroller in fault diagnosis?
20. What is the abbreviation of ASIC?
218 | P a g e
Part B - Answer all the Questions
5 x 12 = 60 Marks
21 A) 1. Explain the concept of gate turn off Thyristor – GTO.
2. Explain synchronized trigger circuit with waveforms.
(Or)
B) 1. With a block diagram explain the IC based advanced triggering circuits for SCR &
TRIAC using TCA 785.
2. Explain the concept of Microcontroller based trigger circuit with a block diagram.
22. A) 1. Explain half wave controlled rectifier with resistive load.
2. Draw and explain the complete protection of Thyristor circuit.
(Or)
B) 1. Explain fully controlled bridge with resistive load.
2. Derive the concept of reactive power of converters.
23. A) 1. Explain MORGAN chopper with suitable circuit and waveforms.
2. Explain completely the modified MC-Murray full bridge inverter.
(Or)
A) 1. Explain CUK converter with circuit diagram.
2. Explain sinusoidal pulse width modulated inverter with suitable circuit.
24.
A) 1. Explain three phase semi converter drive with waveforms.
2. Explain DC to DC converter with MOSFET circuits.
(Or)
B) 1. Explain single phase dual converter drives.
2. With block diagram explain Microprocessor based closed loop control of DC drive.
25.
A) 1. Explain with circuit diagram the slip power recovery scheme.
2. Explain various fault diagnosis in three phase converter using Micro controller.
(Or)
B) 1. Explain with circuit of a single phase to single phase cycloconverter.
2. Explain the concept of ASIC’s for motor control applications.
219 | P a g e
POWER ELECTRONICS
Model Question Paper – 2
Part A – Answer any fifteen questions
15x1 = 15 Marks
1. Draw the symbol of MOSFET.
2. Define Latching current.
3. Explain di/dt rating.
4. What is class D commutation?
5. What is firing angle of SCR?
6. Write two applications of phase controlled rectifier.
7. RC snubber is used for what protection?
8. What is overlap angle?
9. What is a step down chopper?
10. What is Time Ratio Control?
11. What are the applications of inverter?
12. What is online UPS?
13. What is armature control of DC Motor?
14. What are the applications of DC drive?
15. What is closed loop control?
16. What are the advantages of Microprocessor based control of DC Motor?
17. In what motor rotor resistance control is used?
18. What is slip power recovery scheme?
19. Mention two Motor control peripherals.
20. Expand D S P.
Part B – Answer all the questions
21
5x12 = 60 Marks
a) Explain the working and characteristics of TRIAC.
b) Explain the concept of Natural commutation with circuit diagram.
(or)
c) Explain RC firing with suitable circuit.
d) Explain the concept of class B, class D commutations.
22 a) Explain semi converter bridge circuit with RL load.
b) Explain the concepts of power factor improvements.
(or)
c) Explain three phase half controlled bridge converter with RL Load.
d) Write a short note on dv/dt , di/dt , short circuit protections.
23 a) Explain Jones chopper with suitable circuit and waveforms.
b) Explain sinusoidal pulse width modulated inverter.
(or)
c) Explain MC-Murray Bedford full bridge inverter circuit.
d) Explain Buck Boost DC to DC converter without isolation.
24 a) Explain the principles of armature voltage control and field current control of DC drive.
b) With suitable block diagram explain phase locked loop control of DC drives
(or)
c) Explain separately excited DC Motor speed control with single phase full converter drive.
d) Explain with block diagram the closed loop control of DC drives.
25 a) With suitable diagram explain the speed control of three phase Induction Motor.
b) Explain Micro computer based PWM control of Induction Motor.
(or)
c) Explain the Induction motor speed control circuit in variable frequency control method.
d) Explain the need for DSP based motor control.
220 | P a g e
STATE BOARD OF TECHNICAL EDUCATION AND TRAINING, TAMIL NADU
SYLLABUS FOR DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING
L-SCHEME
Course Name
Subject Code
Semester
Subject Title
:
:
:
:
Diploma in Electrical and Electronics Engineering
23082
VI Semester
BIO MEDICAL INSTRUMENTATION
TEACHING AND SCHEME OF EXAMINATION
No. of weeks per Semester : 16
Instruction
Subject
Hours /
Week
Hours /
Semester
5
80
BIO MEDICAL
INSTRUMENTATION
Examination
Assessment marks
Board
Internal
Examination
25
75
Total
100
TOPICS AND ALLOCATION OF TIME
UNIT
TOPIC
TIME (Hours)
I
Physiological & Clinical Measurement
14
II
Bio - Medical Recorders
14
III
Therapeutic Instruments
14
IV
Bio – Telemetry And Patient Safety
14
V
Modern Imaging Techniques
14
Revision/Test
10
Total
80
RATIONALE
Recent advances in medical field have been fuelled by the instruments developed by the
Electronics and Instrumentation Engineers.
diagnostic systems are few names
Pacemakers, Ultrasound Machine CAT, Medical
which have been contributed by engineers. Now health care
industry uses many instruments which are to be looked after by instrumentation engineers. This
subject will enable the students to learn the basic principles of different instruments/equipment used
in the health care industry. The practical work done in this area will impart skill in the use, servicing
and maintenance of these instruments/equipment. Proficiency in this area will widen the knowledge
and skill of diploma holders in the field of biomedical instrumentation.
221 | P a g e
OBJECTIVES
After learning this subject, the student will be able to understand about

The generation of Bio potential and its measurement using various Electrodes.

The measurement of Blood pressure.

The measurement of Respiration rate.

The principle of operation of ECG recorders

The principle of operation of EEG & EMG recorders

The working principle of Audio meter.

The principle of operation of pacemakers.

The basic principle of Dialysis.

The principle of operation of Endoscopy.

The working principle of telemetry.

The basic principle of Telemedicine.

The basic principle of various types of lasers.

The basic principle of CT Scanners.

The principle of operations of various Imaging techniques used in medical field.

The various method of accident prevention
222 | P a g e
23082 BIO MEDICAL INSTRUMENTATION
DETAILED SYLLABUS
Contents : Theory
Unit
I
II
III
IV
Name of the Topic
PHYSIOLOGICAL & CLINICAL MEASUREMENT
Elementary ideas of cell structure, heart and circulatory system,
control nervous system, Musclo-skeletal system, Respiratory system
Body temperature and reproduction system. Bio – potential and their
generation – resting and action potential – propagation of action
potential.
Electrodes – Micro – Skin – surface – needle electrodes
Measurement of Blood pressure (direct, indirect) – instantaneous flow
(Electro magnetic flow meter, ultrasonic blood flow meter) – blood pH
Measurement of Respiration rate – lung volume – heart rate –
Temperature (body temperature & Skin temperature)
Chromatography, Photometry, Flurometry.
BIO - MEDICAL RECORDERS:
Electro cardiograph (ECG) – Lead system – ECG electrodes – ECG
amplifiers – ECG recording units – analysis of ECG curves.
Nervous system – EEG recorder – 10-20 lead system – recording
techniques – EEG wave types – Clinical use of EEG – brain tumour
Electro – myograph (EMG) – EMG waves – measurement of
conduction velocity – EMG recording techniques – Electro –
retinograph (ERG) Audiometer – principle – types – Basics
audiometer working
THERAPEUTIC INSTRUMENTS:
Cardiac pacemaker – classification – External pace makers –
implantable pacemaker – pacing techniques – programmable
pacemaker – power source of implantable pacemakers (Hg batteries,
nuclear batteries, Lithium cells) Cardiac defibrillators – types – AC –
DC defibrillators Heart lung machine – Oxygenators – Blood pumps –
peristaltic pump – Heart valves – Problems of artificial heart valves.
Dialysis – Hemo dialysis – peritoneal dialysis. Endoscopy – principle
of working and applications
BIO – TELEMETRY AND PATIENT SAFETY:
Introduction – physiological – adaptable to bio – telemetry –
components of a bio telemetry system – application of telemetry in
patient care – problems associated with implantable telemetry.
Fluid balance – electrolytic balance – acid base balance.
Physiological efforts of electric current – Micro and macro shock –
leakage current – shock hazards from electrical equipment.
Methods of Accident Prevention – Grounding – Double Insulation –
Protection by low voltage – Ground fault circuit interrupter – Isolation
of patient connected parts – Isolated power distribution system.
Safety aspects in electro surgical units – burns, high frequency current
hazards, Explosion hazards
Telemedicine – Introduction – working – applications
Hours
Marks
14
15
14
15
14
15
14
15
223 | P a g e
Unit
Name of the Topic
Hours
Marks
MODERN IMAGING TECHNIQUES:
LASER beam properties – block diagram – operation of CO2 and
NDYag LASER – applications of LASER in medicine .
X ray apparatus – block diagram – operation – special techniques in
X-ray imaging – Tomogram – computerized Axial tomography –
Ultrasonic imaging techniques – Echo cardiography – Angiography –
CT scanner - Magnetic resonance imaging techniques
V
15
14
REFERENCE BOOKS
Sl.No.
1
2
3
4
5
Name of the Book
Biomedical Instrumentation
and
measurement
Medical Electronics
Medicine and Clinical
Engineering
Handbook of Bio – Medical
Instrumentation.
Introduction to Medical
Electronics.
Author
Leslie Cromwell –
Fred.J. Weibell,
Kumara doss
Jacobson and
Webstar
Publisher
R. S. Khandpur
B.R. Klin
224 | P a g e
23082 BIO MEDICAL INSTRUMENTATION
Model Question Paper-1
[ N.B – (1) Answer any 15 questions in PART A & either (a) OR (b) of each
question in PART B.
(2) Each question carries 1 (one) mark in PART A & 12 marks in PART B
PART A
1. Define action potential.
2. What is meant by respiration rate?
3. What is the use of electrodes?
4. Define pH.
5. State the purpose of RL electrode in ECG.
6. What do you mean by brain tumor.
7. What is an audiometer?
8. What is EMG test?
9. What is fibrillation?
10. Give the types of blood pump.
11. What is a cardiac pacemaker?
12. What is a hemodialyser?
13. Whish tissue has less percent of water content?
14. What is fluid balance?
15. What is biotelemetry?
16. Define macro shock.
17. Mention any two properties of laser beam.
18. What is electrocardiography?
19. State the application of computerized axial tomography.
20. What is angiography?
225 | P a g e
PART B
21. A) 1. Write short notes on micro electrode.
2. Explain about the lung volume measurement.
(or)
B) 1. Discuss about direct method of blood pressure measurement.
2. Explain about chromatographic technique for analyzing various constituents present
in blood samples.
22. A) 1. Analyze the waveforms obtained in ECG.
2. Explain the working of ERG with neat block diagram.
(or)
B) 1. Explain the 10-20 lead system used in EEG with neat sketch.
2. Explain about the basic block diagram of audiometer.
23. A) 1. Differentiate internal & external pacemaker.
2. Discuss about operation of heart lung machine.
(or)
B) 1. Explain the working of dc defibrillator with a neat diagram.
2. Briefly discuss about the working of endoscopy with a neat diagram.
24.
A) 1. Explain the various components of biotelemetry.
2. Explain in detail about the various methods of accident prevention.
(or)
B) 1. Explain the physiological effects of electrical current in detail.
2. Write down the safety aspects in surgical unit.
25.
A) 1. Explain the application of laser in medicine.
2. Write briefly about ultrasonic imaging technique.
(or)
B) 1. Explain the working of a X- ray machine with block diagram.
2. Explain the basic block diagram of Magnetic Resonance Imaging technique.
226 | P a g e
23082 BIO MEDICAL INSTRUMENTATION
Model Question Paper-2
Note : (1) Answer any 15 questions in PART A & either (a) OR (b) of each question in
PART B.
(2) Each question carries 1 (one) mark in PART A & 12 marks in PART B
PART A
1.What are the salts responsible for action and nesting potential?
2.What is blood PH?
3.What instrument is used to analysis the working of brain?
4. Define respiration rate and lung volume
5.What is speech audiometry ?
6.Give one application of Audiometer?
7.What is fibrillation?
8.State one problem associated with implementable telementry.
9.What is the use of RL electrode in ECG?
10.What is macro shock? Enumerate the application of artificial heart valve.
11.Write short notes on telemedicine.
12.Trace a normal ECG waveform and range the salient points?
13.What do you meant by dialysis? And state various methods .
14. Show the different brain waves with their frequency
15. What do you mean by heart rate?.
16.Differentiate micro and macro shock.
17. What is Fluid balance ?
18. List the various special techniques in X-ray imaging.
19. Mention any four medical application of LASER?
20. What is the application of computerised axial tomography?
PART-B
21.a. Explain the different types of electrode used to measure bio potential.
OR
b.Draw the block diagram of Electromagnetic flow meter and explain its construction and
application w .r. t biomedical.
227 | P a g e
22. a. Draw the block diagram of ECG and explain its working.
OR
b. How conduction velocity muscle is measured.
23..a. What is a pace maker ? List and explain the various power sources used for
pace marker?
OR
implantable
b. Draw the block diagram of heart machine and explain its working.
24. a. List the various method of accident prevention and explain each.
OR
b. Draw the block diagram of Biotelementry system and explain.
25. a. Explain the operation of CO2 LASER.
OR
b. Explain the working of magnetic resonance using a block diagram.
228 | P a g e
DIRECTORATE OF TECHNICAL EDUCATION
GOVERNMENT OF TAMILNADU
L – SCHEME
(Implements from the Academic Year 2012-2013 onwards)
Course Name
: Diploma in Information Technology
Course Code
: 1046
Subject Code
: 24682
Semester
: VI Semester
Subject Title
: COMPUTER HARDWARE AND NETWORKS
TEACHING AND SCHEME OF EXAMINATION:
No. of Weeks per Semester: 16 Weeks
Instructions
Subject
Examination
Marks
Hours /
Hours /
Week Semester
COMPUTER
HARDWARE
AND
NETWORKS
5
Hours
Internal
Board
Assessment Examination
80 Hours
25
75
Total
100
Duration
3 Hours
Topics and Allocation of Hours:
Sl. No
Unit-I
Topics
Time (Hours)
14 Hours
Unit-II
MOTHERBOARD COMPONENTS AND MEMORY
STORAGE DEVICES
I/O DEVICES AND INTERFACE
Unit-III
TROUBLE SHOOTING OF DESKTOP AND LAPTOPS
14 Hours
Unit-IV
COMPUTER NETWORK DEVICES AND OSI LAYERS
14 Hours
Unit-V
802.X AND TCP/IP PROTOCOLS
14 Hours
Revision and Examinations
10 Hours
Total
14 Hours
80 Hours
RATIONALE
Maintaining and servicing the computers, laptops and peripherals are essential requirements
of the computer students. The clear understanding of computer network devices and protocols are
also taught in this subject.
229 | P a g e
OBJECTIVES:
On completion of the following units of syllabus contents, the students can

Identify the major components that make up the system unit.

Understand the principle of operations of Keyboard, mouse and Displays.

Study about the specification of I/O Ports of all I/O devices like serial, parallel, USB – Game
port, Blue tooth and IP Connectors

Understand the technology of high quality multiple color graphic output devices like Dot
matrix, Inkjet, Laser, Line, MFP and computer system.

Understand the operations to Power Supply devices.

Know the use of diagnostic Software.

Identify the major components of Laptop.

Troubles shoot the problems in Laptop.

Understand the concept of data communication.

Discuss the advantages and disadvantages of different network topologies.

Compare different network classifications based on different category.

Know the use of different network devices.

Understand the different layers of OSI and their functions.

Compare different LAN protocols.

Identify the protocols used in TCP /IP and compare with OSI model.

Use of IP addressing and TCP/ IP protocols briefly.
230 | P a g e
DETAILED SYLLABUS
Content : Theory
Unit No.
Name of the Topic
Hours
I
MOTHERBOARD COMPONENTS AND MEMORY STORAGE
DEVICES
1.1 Introduction: Parts - Mother board, expansion slots, memory,
2 Hrs
power supply, drives and front panel and rear panel connectors –
Hardware, Software and Firmware.
1.2 Processors: Architecture and block diagram of multicore
Processor, Features
(Concepts only)
of
new processor(Definition
only)-chipsets
1.3 Bus Standards Overview and features of PCI, AGP, USB,
PCMCIA, Processor BUS - High Speed Bus
2 Hrs
2 Hrs
1.4 Primary Memory: Introduction-Main Memory, Cache memory –
DDR2- DDR3, RAM versions – 1TB RAM – DirectRDRAM
2 Hrs
1.5 Secondary Storage: Hard Disk – Construction – Working Principle
– Specification of IDE, Ultra ATA, Serial ATA; HDD Partition Formatting. Troubleshooting hard disk drives.
3 Hrs
1.6 Removable Storage: CD&DVD construction – reading & writing
operations; CD-R,CD-RW; DVD-ROM, DVD-RW; construction and
working of DVD Reader / Writer.
Blue-ray: Introduction – Disc Parameters – Recording and Playback
Principles – Solid state memory devices.
II
3 Hrs
I/O DEVICES AND INTERFACE
2.1 Keyboard and Mouse: Keyboard: Signals – operation of
membrane and mechanical keyboards–troubleshooting; wireless
Keyboard. Mouse- types, connectors, operation of Optical mouse and
2 Hrs
Troubleshooting.
2.2 Printers: Introduction – Types of printers– Dot Matrix, Inkjet, Laser,
4 Hrs
line printer, MFP (Multi Function Printer), Thermal printer - Operation –
Construction – Features and Troubleshooting
231 | P a g e
2.3 I/O Ports: Serial, Parallel, USB, Game Port, Bluetooth interface, IR
connector, fire ware, Signal specification problems with interfaces.
2.4 Displays and Graphic Cards: Panel Displays– Principles of LED,
LCD and TFT Displays. SVGA Port signals – common problems and
solutions.
2 Hrs
2 Hrs
1 Hr
2.5 Modem: Working principles – Broadband modems only (USB) common problems and solutions
3 Hrs
2.6 Power Supply: Servo Stabilizers, online and offline UPS - working
principles; Surge suppressors and spike isolators. SMPS: Principles of
Operation and Block Diagram of ATX Power Supply, connector
specifications.
III
MAINTENANCE AND TROUBLE SHOOTING OF DESKTOP AND
LAPTOPS
3.1 Bios-setup: Standard CMOS setup, Advanced BIOS setup, Power
management, advanced chipset features, PC Bios communication –
upgrading BIOS, Flash BIOS -setup.
3 Hrs
3.2 POST: Definition – IPL hardware – POST Test sequence – beep
codes and error messages.
2 Hrs
3.3 Diagnostic Software and Viruses: Computer Viruses –
Precautions – Anti-virus Software – identify the signature of viruses –
Firewalls and latest diagnostic software’s.
2 Hrs
3.4 Laptop: Difference between laptop and desktop- Types of laptop –
block diagram – working principles–configuring laptops and power
settings - SMD components, ESD and precautions.
2 Hrs
3.5 Laptop components: Adapter – types, Battery – types and basic
problems, RAM– types, CPU – types, Laptop Mother Board - block
diagram, Laptop Keyboard –Mouse and Touchpad - Ports.
2 Hrs
3.6 Installation and Troubleshooting: Formatting, Partitioning and
IV
Installation of OS – Trouble Shooting Laptop Hardware problems Preventive maintenance techniques for laptops.
3 Hrs
COMPUTER NETWORK DEVICES AND OSI LAYERS
4.1 Data Communication: Components of a data communication –
4 Hrs
Data flow: simplex – half duplex – full duplex; Networks – Definition Network criteria – Types of Connections: Point to point – multipoint;
Topologies: Star, Bus, Ring, Mesh, Hybrid – Advantages and
Disadvantages of each topology.
232 | P a g e
4.2 Types of Networks : LAN – MAN – WAN – CAN – HAN – Internet
– Intranet –Extranet ,Client-Server, Peer To Peer Networks.
3 Hrs
4.3 Transmission Media : Classification of transmission media Guided – Twisted pair, Coaxial, Fiber optics; Unguided – Radio
waves – Infrared – LOS – VSAT – cabling and standards
4.4 Network devices : Features and
concepts of Switches –
Routers(Wired and Wireless) – Gateways.
4.5 Network Models : Protocol definition - standards - OSI Model –
3 Hrs
2 Hrs
2 Hrs
layered architecture – functions of all layers.
V
802.X AND TCP/IP PROTOCOLS
5.1 Overview of TCP / IP : OSI & TCP/IP – Transport Layers Protocol
– connection oriented and connectionless Services – Sockets –
TCP & UDP.
2 Hrs
5.2 802.X Protocols : Concepts and PDU format of CSMA/CD (802.3)
– Token bus (802.4) – Token ring (802.5) – Ethernet – type of Ethernet
(Fast Ethernet, gigabit Ethernet) – Comparison between 802.3, 802.4
and 802.5
5.3 Network Layers Protocol: IP –Interior Gateway Protocols (IGMP,
3 Hrs
4 Hrs
ICMP, ARP, RARP Concept only).
5.4 IP Addressing : Dotted Decimal Notation –Subnetting &
Supernetting – VLSM Technique-IPv6 (concepts only)
5.5 Application Layer Protocols: FTP– Telnet – SMTP– HTTP –
DNS – POP.
2 Hrs
3 Hrs
TEXT BOOKS:
1.
2.
3.
4.
5.
6.
7.
8.
9.
IBM PC and CLONES, B.Govindrajalu, Tata McGrawhill Publishers, IBM PC and CLONES
Computer Installation and Servicing, D.Balasubramanian, Tata McGraw Hill
Computer Installation and Servicing
The complete PC upgrade and Maintenance, Mark Minasi, BPB Publication, The complete PC
upgrade and Maintenance
Troubleshooting, Maintaining and Repairing PCs, Stephen J Bigelow ,Tata MCGraw Hill
Publication ,Troubleshooting Maintaining and Repairing PCs
Upgrading and repairing laptops, Scott Mueller, QUE Publication, Upgrading and repairing
laptops
Data Communication and networking, Behrouz A.Forouzan, Tata Mc-Graw Hill, New Delhi,
Data and Computer Communications, William Stallings, Prentice-Hall of India, Eighth Edition
Computer Networks, Andrew S.Tanenbaum, Prentice-Hall of India, New Delhi,
233 | P a g e
REFERENCE BOOKS:
1. Computer Networks,Achyut Godbole,Tata Mc-Graw Hill -New Delhi
2. Principles of Wireless Networks– A unified Approach, Kaveh Pahlavan and Prashant
Krishnamurty, Pearson Education, 2002
234 | P a g e
COMPUTER HARDWARE AND NETWORKS
MODEL QUESTION PAPER – 1
Time: 3 Hrs
Max. Marks: 75
PART – A
Marks 15 x 1 = 15
Note : Answer any 15 Questions. – All Questions carry equal marks
1. What is a Chipset?
2. Define: Direct RDRAM.
3. What is the Secondary Storage?
4. Give any two features of PCI.
5. Expand the term LED.
6. What are membrane and mechanical keyboard?
7. Define: Blue tooth interface.
8. List out the types of printers.
9. Define: BIOS.
10. List out the types of adapter.
11. Give the types of RAM.
12. Define: Power Management.
13. What is the data communication?
14. Define: Data Flow.
15. Expand the term: MAN.
16. What are the types of transmission media?
17. Give an example for connection-oriented protocol.
18. Expand the term: POP.
19. What is subnetting?
20. Define socket.
235 | P a g e
PART – B
Marks 5 x 12 = 60
Note : Answer all Questions.
21. A.1. Explain in detail about the architecture of Multi core Processor with neat
diagram.
(OR)
B.1. Explain the Processor Bus.
2. Explain the working principles of CD-R.
22. A.1. Write the signal specification problems with interfaces.
2. Explain the operation of optical mouse.
(OR)
B. Explain the working principle of modem.
23. A.1. Write about SMD Components.
2. What are the signatures of viruses?
(OR)
B. What is POST? List out the tests performed by POST
24. A. Explain in detail about OSI model with neat diagram.
(OR)
B. Explain in detail about Network devices.
25. A. Explain in detail about TCP and UDP.
(OR)
B. Discuss about 802.X protocols with neat diagram.
***
236 | P a g e
COMPUTER HARDWARE AND NETWORKS
MODEL QUESTION PAPER – 2
Time: 3 Hrs
Max. Marks: 75
PART – A
Marks 15 x 1 = 15
Note : Answer any 15 Questions. – All Questions carry equal marks
1. What is the other name of motherboard?
2. Define: BUS.
3. Define: processor.
4. What is the use of ultra ATA?
5. What is parallel port?
6. Define: Spike Isolator.
7. Expand the term UPS.
8. What is Multi Function Printer?
9. What is CMOS?
10. What are the types of error messages?
11. Give an example for anti-virus software.
12. What is ESD?
13. Give any two advantages of star topology.
14. What is an adaptive routing?
15. What is half duplex?
16. What is VSAT?
17. What is connectionless protocol?
18. Expand: IGMP.
19. What is supernetting?
20. What is DNS?
237 | P a g e
PART – B
Marks 5 x 12 = 60
Note : Answer all Questions.
21. A.1. How will you format the hard disk?
2. Draw and explain the USB.
(OR)
B. Discuss the format and version of DVD-ROM.
22. A.1. Explain in detail about SVGA.
2. Write the working principle of LCD.
(OR)
B. Explain the working of wireless keyboard with block diagram.
23. A. How will you upgrade BIOS?
(OR)
B.1. Draw the block diagram of laptop motherboard and explain it.
2. Write down the steps involved in OS installation.
24. A. With neat diagram explain the types of networks.
(OR)
B. Discuss about unguided transmission media with neat diagram.
25. A.1. With neat diagram explain about TELNET.
2. Explain in detail about SMTP.
(OR)
B.1.With neat diagram explain about VLSM technique.
2.Write short notes on IPV6.
238 | P a g e
STATE BOARD OF TECHNICAL EDUCATION AND TRAINING, TAMIL NADU
SYLLABUS FOR DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING
L-SCHEME
Course Name
Subject Code
Semester
Subject Title
:
:
:
:
Diploma in Electrical and Electronics Engineering
23064
VI Semester
WIRING & WINDING PRACTICAL
TEACHING AND SCHEME OF EXAMINATION
No. of weeks per Semester : 16
Instruction
Subject
Hours /
Week
Hours /
Semester
Wiring and Winding Practical
4
96
Examination
Assessment marks
Board
Internal
Total
Examination
25
75
100
RATIONALE
To provide hands on experience in Electrical wiring and winding it becomes necessary to
include this subject.
OBJECTIVES
At the end of this practical subject the students should be able to

Execute the wiring to control three lamps Individually

Execute the stair case wiring for G+n floors

Execute the emergency alarm circuit

Execute the wiring to connect a single phase motor with main switch , D.O.L starter and
M.C.B

Execute the wiring to connect a 3 phase Induction motor with main switch, star/delta starter
and E.L.C.B.

Execute the wiring for 1 phase service connection with necessary items.

Execute the wiring to control lamps (Sodium vapour lamp, mercury vapour lamp, Fluorescent
Tube and Neon sign lamp) with a provision of fuse/ M.C.B/Electronic chock / switches

Execute the wiring for test board with necessary items.

Know the consequences of disconnection of Neutral in 3 phase 4 wire system.

Execute the Tunnel wiring

Prepare winding for potential Transformer and No volt coil with the knowledge of Design.

Give end connections for 3 phase Induction motor winding.
239 | P a g e
23064 WIRING & WINDING PRACTICAL
Contents : Practical
List of Experiments
WIRING
1.
Control three lamps individually providing MCB to protect the circuit.
2.
Execute the stair case wiring for G+3 floors.
3.
Execute the Emergency alarm circuit with a provision of 3 bells in series to ring together
when any one of the 3 push button is pressed .
4.
Execute the wiring using single phase main switch, Single phase D.O.L starter and
miniature C.B to install single phase Induction motor.
5.
Execute the wiring using Three phase main switch, Star/delta starter and Earth Leakage
C.B to install 3phase Induction motor with a provision for arrangement to trip ELCB when
fault occurs.
6.
Execute the wiring for service connection with single phase Energy meter cutout, main
switch, 4way D.B, Indicator lamp and connect a load on any one sub circuit.
7.
Execute the wiring for connecting sodium vapour and mercury vapour Lamp with single
phase supply.
8.
Execute the Fluorescent Tube light connection with Electronic choke and test it. Also
measure the voltage across the tube light fitting.
9.
Construct a simple model (with minimum 3 Blocks)to know the usage of Neon tube circuit
in advertisement .
10.
Prepare a test board with necessary supply provision, Indicator lamp, fuse unit to test
electrical appliances.
11.
In a 3 phase, 4 wire system, connect two lamps in different ratings between R-Phase to
Neutral and y-phase to Neutral respectively. Disconnect the Neutral using SPST switch.
Note the changes occur in two lamps.
12.
Execute the Tunnel wiring at least for four lamps fixed at equal intervals successively.
WINDING
13.
Design and wind 230/12-0-12 volt, 500mA Transformer and test it.
14.
Design and wind a Novolt coil used in starter.
15.
Wind and insert the coils for ceiling fan motor (minimum 2 coils)
16.
Give end connection for a 3 phase Induction motor winding for a 2 pole/ 4 pole
operations and runit. Measure the No load current and speed..
240 | P a g e
Equipment / Materials required
Sl.No.
Description
Specification
250 V, 5A
Qty
1
SPST Flush type switch
15 Nos.
2.
Batten Lamp holder
10 Nos.
3.
Round block
20 Nos.
4.
Switch board
20 cm x 15 cm
1 No.
10 cm x 10 cm
15 Nos.
5.
M.C.B.
250 V, 10 A, 2 pole
2 Nos.
6.
Push button switch
250 V, 5A
5 Nos.
7.
2 plate ceiling rose
250 V, 5A
10 Nos.
8.
Electric bell
250 V, 5A
3 Nos.
9.
Single phase D.P.I.C. Main switch
250 V, 16A
3 Nos.
10.
Single phase D.O.L. Starter
250 V, 10 A
1 No.
11.
Three phase T.P.I.C. Main switch
500 V, 30 A
2 Nos.
12.
Star / delta starter
440 V, 5 H.P.
1 No.
13.
E.L.C.B.
500 V, 30 A
1 No.
14.
Single phase, 2 wire watt-hour meter
250 V, 15A, 50 hz
1 No.
15.
Cut out
16 A
1 No.
16.
Single phase, 4 way distribution Box
250 V, 15 A
1 No.
17.
Mercury vapour lamp with accessories
1 set
18.
1 set
40 W
20.
Sodium vapour lamp with accessories
Fluorescent tube light with electronic
choke and holder
Neon tube lamp (any sign)
21.
Two way flush type switch
250 V, 5A
22.
Wooden box
30 cm x 15 cm
23.
PVC pipe
1”
Required qty
24
Saddle clips
Required qty
25.
Coppor wire
26.
1” junction box
1”
2.5 sq.mm.
1.5 sq.mm
One way
Two way
Three way
27.
Screws
19.
1 set
3 blocks
10 Nos.
1 No.
Required qty
Required qty
Required qty
241 | P a g e
28.
Bare copper wire
2.5 sq. mm
Required qty
29.
Lamps (C.F.L. or Incandescent)
Different ratings
Required qty
Transformer core:
30.
31
EI60 type stampings of 0.35 mm
thickness
Readymade bobbins (EI60/21)
55 Nos.
Required qty
25 SWG
36 SWG
37 SWG
38 SWG
32.
Winding coil (copper)
33
Varnish
34.
Winding machine
1 No.
35.
Ceiling fan (motor)
1 No.
36.
Single phase induction motor
Three phase squirrel cage induction
motor
37.
Required qty
Required qty
0.5 H.P. 50 Hz, 240 V
1 No.
3 H.P., 500 V, 50 Hz
2
Nos.
Allocation of marks
1.
2.
3.
4.
Wiring diagram /Design
Execution
Result
Viva-voce
Total marks
-
20 marks
40 marks
10 marks
05 marks
-
75 marks
242 | P a g e
STATE BOARD OF TECHNICAL EDUCATION AND TRAINING, TAMIL NADU
SYLLABUS FOR DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING
L-SCHEME
Course Name
Subject Code
Semester
Subject Title
:
:
:
:
Diploma in Electrical and Electronics Engineering
23065
VI Semester
COMPUTER AIDED ELECTRICAL DRAWING PRACTICAL
TEACHING AND SCHEME OF EXAMINATION
No. of weeks per Semester : 16
Instruction
Subject
Hours /
Week
Hours /
Semester
6
80
COMPUTER AIDED
ELECTRICAL DRAWING
PRACTICAL
Examination
Assessment marks
Board
Internal
Examination
25
75
Total
100
RATIONALE
Drawing boards and drawing papers are not at all used for engineering drawing. All the
drawings are made on computers using appropriate software. There are many advantages of
computer aided drawing over traditional drawing. This subject is introduced in order to impart skill of
making computer aided electrical drawing.
OBJECTIVES
At the end of the semester the student must be able to draw
• 2D diagrams using Auto CAD
• Symbols widely used in Electrical and Electronics circuits
• Starter circuits and winding diagrams
• The line diagrams of substations
• The simple basic diagrams for laboratory circuits
243 | P a g e
23065 COMPUTER AIDED ELECTRICAL DRAWING PRACTICAL
Contents : Practical
List of Experiments
DRAWING - ELECTRICAL SYMBOLS
01. Draw the symbols for machines : Armatures, Alternators, Field winding
- Shunt, Series and Compound, Transformers, Auto Transformers
02. Draw the symbols for components :Resistor, Capacitor, Inductor,
Diode, Transistor, FET, SCR, UJT, TRIAC, DIAC, Gates AND, OR,
NOT, NAND, NOR, EXOR
03. Draw the symbols used in circuits : Relays, contactors, fuses, main
switch, electric bell, earth, antenna, DPST, DPDT, TPST, Neutral link
04. Draw the symbols for instruments : Ammeter, Voltmeter, Wattmeter,
Energy meter, Frequency meter, Power factor meter, Timers, Buzzers
DRAWING - ELECTRICAL CONNECTION DIAGRAMS
01. Draw the panel wiring diagram of two shunt generators in parallel.
02. Draw the panel wiring diagram of two single phase alternators in parallel.
03. Draw the winding diagram of lap connected DC armature with commutator connections and
brush positions.
04. Draw the winding diagram of wave connected DC armature with commutator connection
and brush positions.
05. Draw the mush winding diagram of a three phase induction motor.
06. Draw the concentric winding diagram of a single phase induction motor.
07. Draw the control circuit of jogging.
08. Draw the control circuit of automatic rotor starters.
09. Draw the connection diagram of ON load tap changer.
10. Draw the circuit of three phase transformers in parallel.
11. Draw the connections of three point starter.
12. Draw the connections of automatic star - delta starter.
13. Draw the connections of direct on line starter.
14. Draw the single line diagram of 110 KV / 11 KV receiving substation
244 | P a g e
NOTE FOR EXAMINERS
1. Five symbols should be asked from exercise 1 to 4 with at least one from each
2. One sketch should be asked from exercise 5 to 18.
3. Printed output of the given symbols and sketch is to be evaluated
MODEL QUESTION
I Draw the symbol of Inductor, Power factor meter, DIAC, Buzzer, Alternator
10 marks
II Develop the Drawing for the connection of ON load tap changer in AutoCAD.
Take the Printed output.
60 marks
III Viva – Voce
05 marks
245 | P a g e
STATE BOARD OF TECHNICAL EDUCATION AND TRAINING, TAMIL NADU
SYLLABUS FOR DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING
L-SCHEME
Course Name
: Diploma in Electrical and Electronics Engineering
Subject Code
: 23084
Semester
: VI Semester
Subject Title
: POWER ELECTRONICS PRACTICAL
TEACHING AND SCHEME OF EXAMINATION
No. of weeks per Semester : 16
Instruction
Subject
POWER ELECTRONICS
Hours /
Week
Hours /
Semester
6
80
Examination
Assessment marks
Board
Internal
Examination
25
75
Total
100
PRACTICAL
RATIONALE
AC to DC conversion, DC to AC inversion, Voltage and Current controls,
Voltage to
Frequency conversion with high voltage supplies became possible with the introduction of Power
Electronic Devices. Without these operations the electric drives are useless in these days. This
subject is introduced to impart practical skills to the students in using some important power
electronic devices and circuits.
OBJECTIVES
On completion of the following experiments, the students must be able to

To draw the characteristics of SCR

Get the knowledge about the trigger circuit

Draw the input/output waveform using semi converter controlled bridge and FCB

Know the performance of lamp control using DIAC-TRIAC

Learn the various techniques used for turn-off of Thyristor

Learn the half wave controlled rectifier with R- Load

Draw the waveform of parallel inverter

Draw the output waveform of DC chopper

Learn the concept of single phase to single phase cyclo converter

Measure the output voltage of step up chopper.

Find the performance of speed control of universal motor

Understand the concept of closed loop control of AC motor (microprocessor controlled PWM

Know the performance of speed control of DC motor by varying firing angle

Understand the concept of closed loop control of DC motor using microprocessor

Draw the output waveform of DC chopper using MOSFET/IGBT
246 | P a g e
23084 POWER ELECTRONICS PRACTICAL
List of Experiments
1. Characteristics of SCR and marking important parameters.
2. Line synchronized Ramp trigger circuit using UJT with AC load.
3. Lamp control circuit using DIAC – TRIAC.
4. SCR commutation circuits (Class B & Class D)
5. Single phase semi controlled bridge with R- Load
6. Single phase fully controlled bridge with RL- Load
7. Half wave controlled rectifier with R- Load.
8. DC chopper control circuit using thyristor (any one).
9. Construct and test the step up chopper.
10. PWM based step down DC chopper using MOSFET/IGBT.
11. Single phase Single pulse / Sinusoidal PWM inverter using MOSFET/IGBT.
12. SMPS using MOSFET/IGBT.
13. DC shunt motor speed control circuit (open loop)
14. Universal motor control circuit using TRIAC.
15. Open loop speed control of Single phase AC motor.
16. Single phase parallel inverter using MOSFET/IGBT
17. Single phase to single phase cyclo converter.
247 | P a g e
Scheme of Evaluation
Sl No.
Activity of the Candidate
Maximum
Marks to be
awarded
1
Drawing Correct Diagram and writing Details of the
Components/Equipments/Machines used
15
2
Making the correct circuit connections
15
3
Conducting the Experiment
4
-
Following the correct procedure
-
Taking the appropriate readings
-
Following the appropriate safety procedure
25
Tabulation of Readings
Interpretation of Results
15
Graphical Representation (if required)
5
Viva-voce (Questions related to the given experiments
only)
5
Total Marks (External)
75
248 | P a g e
STATE BOARD OF TECHNICAL EDUCATION AND TRAINING, TAMIL NADU
SYLLABUS FOR DIPLOMA IN ELECTRICAL AND ELECTRONICS ENGINEERING
L-SCHEME
Course Name
: Diploma in Electrical and Electronics Engineering
Subject Code
: 23085
Semester
: VI Semester
Subject Title
: BIO MEDICAL INSTRUMENTATION PRACTICAL
TEACHING AND SCHEME OF EXAMINATION
Name of Subject
No. of weeks per Semester : 16
Instruction
Examination
Assessment marks
Hours /
Hours /
Internal
Board
Total
Week
Semester
Exam
BIO MEDICAL
INSTRUMENTATION PRACTICAL
6
80
25
75
100
RATIONALE
Recent advances in medical field have been fuelled by the instruments developed by the
Electronics and Instrumentation Engineers.
diagnostic systems are few names
Pacemakers, Ultrasound Machine CAT, Medical
which have been contributed by engineers. Now health care
industry uses many instruments which are to be looked after by instrumentation engineers. This
subject will enable the students to learn the basic principles of different instruments/equipment used
in the health care industry. The practical work done in this area will impart skill in the use, servicing
and maintenance of these instruments/equipment. Proficiency in this area will widen the knowledge
and skill of diploma holders in the field of biomedical instrumentation.
249 | P a g e
ELECTIVE PRACTICAL - II
23085 BIO – MEDICAL INSTRUMENTATION PRACTICAL
List of Experiments
1. Operation and function of all the controls of hospital X-Ray machine (visit at hospital)
2. Operation and function of all the controls of dental X-Ray machine (Visit to Hospital)
3. Identification of different block/sub system of circuits in X-Ray machine
4. Measurement of skin contact impedance and technique to reduce it.
5. Observe its wave shape on CRO the output of blood pressure transducers body temperature
transducers and pulse sensors
6. Use of sphygrmanometer for measurement of blood pressure
7. Concept of ECG system and placement of electrodes
8. Measurement of leakage currents with the help of safety tester
9. PH measurement of given biological sample
10. Concept of EMG system and placement of electrode
11. Measurement of respiration rate using thermistor
12. Concept of EEG system and placement of electrode
13. Identification of different types of PH electrodes
250 | P a g e
STATE BOARD OF TECHNICAL EDUCATION & TRAINING, TAMILNADU
L – SCHEME
(Implemented from the academic year 2012 - 2013 onwards)
Course Name
:
Diploma in Electrical and Electronics Engineering.
Subject Code
:
24684
Semester
:
VI Semester
Subject Title
:
COMPUTER SERVICING AND NETWORK PRACTICAL
SCHEME OF INSTRUCTION AND EXAMINATION
No. of weeks per semester: 16 weeks
Instructions
Subject
COMPUTER
SERVICING
AND NETWORK
PRACTICAL
Examination
Hours /
Week
Hours /
Semester
Internal
Assessment
Board
Examination
Total
6
64
25
75
100
RATIONALE
The course aims at making the students familiar with various parts of computers and laptops
and how to assemble them and the different types of peripherals desired. In addition, the course will
provide the students with necessary knowledge and skills in computer and laptop software installation
and maintenance and to make him diagnose the software faults. This subject also gives the
knowledge and competency to diagnose the problems in computer hardware and peripherals and
also gives the knowledge for trouble shooting for systematic repair and maintenance of computers
and laptops
OBJECTIVES
On completion of the following exercises, the students must be able to
 Know the various indicators, switches and connectors used in Computers.
 Familiarize the layout of SMPS, motherboard and various Disk Drives.
 Configure Bios set up options.
 Install various secondary storage devices with memory partition and formatting.
 Know the various types of printer installation and to handle the troubleshooting ability.
 Acquire the practical knowledge about the installation of various devices like scanner, web
camera, cell phone and bio-metric devices.
 Assemble PC system and checking the working condition.
 Installation of Dual OS in a system.
 Identify the problems in Computer systems, software installation and rectification also.
 Assembling and disassembling of Laptop to identify the parts and to install OS and configure
it.
 Enable to perform different cabling in a network.
 Configure Internet connection and use utilities to debug the network issues.
 Configure router for any topology
251 | P a g e
LAB EXERCISES
PART A – COMPUTER SERVICING PRACTICALS
1 Identification of System Layout.
a) Front panel indicators & switches and Front side & rear side connectors.
b) Familiarize the computer system Layout: Marking positions of SMPS,
Motherboard,
FDD, HDD, CD, DVD and add on cards.
c) Configure bios setup program and troubleshoot the typical problems using BIOS
utility.
2 HARD DISK
a) Install Hard Disk.
b) Configure CMOS-Setup.
c) Partition and Format Hard Disk.
d) Identify Master /Slave / IDE Devices.
e) Practice with scan disk, disk cleanup, disk De-fragmenter, Virus Detecting and
Rectifying Software.
3
a)
b)
Install and Configure a DVD Writer and a Blu-ray Disc writer.
Recording a Blank DVD and Blu-ray Disc.
4 Printer Installation and Servicing:
a) Head Cleaning in dot matrix printer
b) Install and configure Dot matrix printer and Laser printer
c) Troubleshoot the above printers.
d) Check and connect the data cable connectivity
5 Install and configure Scanner, Web cam, Cell phone and bio-metric device with system.
Troubleshoot the problems
6 Assemble a system with add on cards and check the working condition of the system and
install OS.
7 Dual OS Installation
8 Assembling and Disassembling of Laptop to identify the parts and to install OS and
configure it.
252 | P a g e
PART B – COMPUTER NETWORK PRACTICALS
Do the following Cabling works in a network
9
a) Cable Crimping
b) Standard Cabling c ) Cross Cabling
connector crimping
d) IO
e) Testing the crimped cable using a cable tester
Configure Host IP, Subnet Mask and Default Gateway in a system in LAN (TCP/IP
Configuration).
10
Configure Internet connection and use IPCONFIG, PING / Tracert and Netstat utilities
to debug the network issues
11
Interface two PCs using Peer To Peer network using connectivity devices – Switch
and Router in a LAN and share the Drives and Folders.
12
Transfer files between systems in LAN using FTP Configuration, install Print server in
a LAN and share the printer in a network.
13
Configure DNS to establish interconnection between systems and describe how a name
is mapped to IP Address
14
Install and configure Network Devices: HUB, Switch and Routers
15
Install and Configure Wired and Wireless NIC and transfer files between systems in
LAN and Wireless LAN.
PART C ( NOT FOR EXAMINATION)
Visit Any industry/ Institute ( Engineering colleges, University campus etc., ) and study the
following:

Type and configuration of client PCs and OS

Type and configuration of Server and Domains Used

Type of Networking ( Topology and medium used)

Different Network devices used ( Switches, Routers, Access points etc.,)

Different types of peripherals used

Applications used by the user.
Prepare a detailed report of about 4 to 5 pages and include in the lab record.
253 | P a g e
SCHEME OF VALUATION
Procedure Writing – One Question from
PART - A
Procedure Writing – One Question from
PART - A
Executing program (PART – A)
Executing program (PART – B)
Result with printout ( PART – A)
Result with printout ( PART – B)
VIVA - VOCE
TOTAL
10 Marks
15 Marks
15 Marks
20 Marks
5 Marks
5 Marks
5 Marks
75 Marks
COMPUTER SERVICING AND NETWORK PRACTICAL - REQUIREMENTS
PART A – COMPUTER SERVICING PRACTICAL
1.
2.
Hardware Requirements :
 Computer with Pentium / Core processors with add on cards – 36Nos
 Hard disk drive
- 06 Nos
 CD Drive
- 06 Nos
 DVD Writer
- 06 Nos
 Blank DVD
- 50 Nos
 Blank Blu-ray disk
- 50 Nos
 Head cleaning CD
 Dot matrix Printer
- 06 Nos
 Laser Printer
- 06 Nos
 Digital Camera
- 02 Nos
 Web Camera
- 02 Nos
 Scanner
- 02 Nos
 Blue tooth device and cell phone
- 02 Nos
 Bio-metric device
- 02 Nos
 Laptop
- 18Nos
Software Requirements:
 Windows XP operating system
 Linux operating system
 Disk Manager (for the purpose of partition and format)
 Norton or E-Trust Antivirus software
 Scandisk
 DVD Writer S/W
 CD Burning S/W (Ahead Nero or latest S/W)
 Blu-ray Burning S/W
254 | P a g e
PART B – COMPUTER NETWORK PRACTICAL
Tools Requirement
1.
 Crimping Tool
 Network Cables
Equipment Requirement
 Modem
 Laser Printer
2.
 Hub
 Router
 Switch
System Requirement
 Pentium Systems
3.
with on board Ethernet Card (NIC)
Software Requirement
 Windows 2000 or 2003 or LINUX Server.
 OS Windows XP with service pack
 Drivers Software
- 06 Nos
- 01 No
- 01 No
- 01 No
- 01 No
- 01 No
- 18 Nos
4.
255 | P a g e
. L – SCHEME
(Implemented from the academic year 2012 - 2013 onwards)
Course Name
Subject Code
Semester
Subject Title
:
:
:
:
Diploma in Information Technology.
23067
VI Semester
PROJECT WORK
TEACHING AND SCHEME OF EXAMINATIONS:
No. of Weeks per Semester : 16 Weeks
Subject
PROJECT WORK
Instruction
Hours/
Hours/
Week
Semester
3
Examination
Assessment Marks
Internal
Board
Total
Exam
48
25
75
100
Minimum Marks for Pass is 50 out of which minimum 35 marks should be obtained out of 75 marks in
the board Examination alone.
OBJECTIVES:

Implement the theoretical and practical knowledge gained through the curriculum into an
application suitable for a real practical working environment preferably in an industrial
environment

Get exposure on industrial environment and its work ethics.

Understand what entrepreneurship is and how to become an entrepreneur.

Learn and understand the gap between the technological knowledge acquired through
curriculum and the actual industrial need and to compensate it by acquiring additional
knowledge as required.

Carry out cooperative learning through synchronous guided discussions within the class in key
dates, asynchronous document sharing and discussions, as well as to prepare collaborative
edition of the final project report.

Understand the facts and importance of environmental management.
Understand and gain knowledge about disaster management
INTERNAL ASSESSMENT:
The internal assessment should be calculated based on the review of the progress of the work done
by the student periodically as follows.
Detail of assessment
Period of assessment
th
Max. Marks
First Review
6
week
10
Second Review
14th week
10
Attendance
Entire semester
5
Total
25
256 | P a g e
EVALUATION FOR BOARD EXAMINATION:
Details of Mark allocation
Marks for Report Preparation, Demo, Viva-voce
Marks for answers of 15 questions which is to be set by the
external examiner from the given question bank consisting of
questions in the following three topics Entrepreneurship, Disaster
Management and Environmental Management. Out of fifteen
questions five questions to appear from each of the above topics
i.e. 5 questions x 3 topics = 15 questions
15 questions x 2marks = 30 Marks
Total
Max Marks
45
30
75
DETAILED SYLLABUS
ENTREPRENEURSHIP, ENVIRONMENTAL & DISASTER MANAGEMENT
1. ENTREPRENEURSHIP
1.1
Introduction – Entrepreneur - characteristics of Entrepreneur - contributions of an
Entrepreneur - functions of entrepreneur - Barriers to entrepreneurship - Roll of
government in Entrepreneurial development.
1.2
Small scale industries (SSI) - SSI role in country’s economic growth – importance of SSI starting of an SSI - Government organization and Non-governmental organizations
supporting SSI - DIC,NSIC,SIDO,KVIC, Development banks and their objectives - role of
commercial banks in assisting SSI - Women entrepreneurs and opportunities – Subsidy
and concessions to Small Scale Industries.
2. ENVIRONMENTAL MANAGEMENT
2.1
Introduction – Environmental Ethics – Assessment of Socio Economic Impact –
Environmental Audit – Mitigation of adverse impact on Environment – Importance of
Pollution Control – Types of Industries and Industrial Pollution.
2.2
Solid waste management – Characteristics of Industrial wastes – Methods of Collection,
transfer and disposal of solid wastes – Converting waste to energy – Hazardous waste
management Treatment technologies.
2.3
Waste water management – Characteristics of Industrial effluents – Treatment and
disposal methods – Pollution of water sources and effects on human health.
2.4
Air pollution management – Sources and effects – Dispersion of air pollutants – Air
pollution control methods – Air quality management.
2.5
Noise pollution management – Effects of noise on people – Noise control methods.
257 | P a g e
3. DISASTER MANAGEMENT
3.1
Introduction – Disasters due to natural calamities such as Earthquake, Rain, Flood,
Hurricane, Cyclones etc – Man made Disasters – Crisis due to fires, accidents, strikes etc
– Loss of property and life..
3.2
Disaster Mitigation measures – Causes for major disasters – Risk Identification – Hazard
Zones – Selection of sites for Industries and residential buildings – Minimum distances
from Sea – Orientation of Buildings – Stability of Structures – Fire escapes in buildings Cyclone shelters – Warning systems.
3.3
Disaster Management – Preparedness, Response, Recovery – Arrangements to be
made in the industries / factories and buildings – Mobilization of Emergency Services Search and Rescue operations – First Aids – Transportation of affected people – Hospital
facilities – Fire fighting arrangements – Communication systems – Restoration of Power
supply – Getting assistance of neighbors / Other organizations in Recovery and
Rebuilding works – Financial commitments – Compensations to be paid – Insurances –
Rehabilitation.
LIST OF QUESTIONS
1. ENTREPRENEURSHIP
1. Define the term Entrepreneur.
2. What is Entrepreneurship? Explain.
3. List the various stages of decisions an entrepreneur has to make before reaching the goal of
his project.
4. What is innovation?
5. State briefly the role of an entrepreneur in the economic growth of a country.
6. List the characteristics of an Entrepreneur.
7. What are the critical elements of an Entrepreneur?
8. State the major functions of an Entrepreneur.
9. What are barriers to Entrepreneurship?
10. Define Small Scale Industry.
11. What are the qualities of Entrepreneur?
12. What are the benefits of Entrepreneur?
13. What are the various SSI that can flourish in your district?
14. Identify the infrastructural needs for an industry.
15. What are the various agencies involved in the establishment and development of various SSI?
16. Name some of the agencies funding SSI.
17. Explain the roles played by Government in Entrepreneural development.
18. What are the various concessions and incentives available for a SSI.
19. Name some consumer products with wide demand that can be manufactured by a SSI?
20. What is feasibility study?
21. What is the importance of SSI?
22. What is DIC? State its functions.
23. What is NSIC? State its functions.
258 | P a g e
24. What is SIDO? State its functions.
25. Name the Development Banks in India working towards Entrepreneurial
development.
26. State the role of commercial bank in assisting SSI sector.
27. What are the different phases of Entrepreneurial Development programme?
28. What is an Industrial Estate?
29. What are the facilities available in an Industrial Estate?
30. Identify the various training agencies associated with SSI.
31. List the governmental agencies from whom you shall get financial assistance for a SSI.
32. What is KVIC? State its objectives.
33. Name some state finance corporations.
34. What are the steps involved in preparing a feasibility report?
35. What are the factors to be considered regarding raw materials for a SSI?
36. What are the features of a SSI?
37. What are the advantages of becoming an Entrepreneur?
38. Name the Organizations offering assistance for the development of Women entrepreneurs.
39. State the business opportunities for Women entrepreneurs.
40. State the different subsidies given to SSI’s.
2. ENVIRONMENTRAL MANAGEMENT
1.
What is the responsibility of an Engineer-in-charge of an Industry with respect to Public Health?
2.
Define Environmental Ethic.
3.
How Industries play their role in polluting the environment?
4.
What is the necessity of pollution control? What are all the different organizations you know,
which deal with pollution control?
5.
List out the different types of pollutions caused by a Chemical / Textile / Leather / Automobile /
Cement factory.
6.
What is meant by Hazardous waste?
7.
Define Industrial waste management.
8.
Differentiate between garbage, rubbish, refuse and trash based on their composition and
source.
9.
Explain briefly how the quantity of solid waste generated in an industry could be reduced.
10.
What are the objectives of treatments of solid wastes before disposal?
11.
What are the different methods of disposal of solid wastes?
12.
Explain how the principle of recycling could be applied in the process of waste minimization.
13.
Define the term ‘Environmental Waste Audit’.
14.
List and discuss the factors pertinent to the selection of landfill site.
15.
Explain the purpose of daily cover in a sanitary landfill and state the minimum desirable depth
of daily cover.
16.
Describe any two methods of converting waste into energy.
259 | P a g e
17.
What actions, a local body such as a municipality could take when the agency appointed for
collecting and disposing the solid wastes fails to do the work continuously for number of days?
18.
Write a note on Characteristics of hazardous waste.
19.
What is the difference between municipal and industrial effluent ?
20.
List few of the undesirable parameters / pollutants anticipated in the effluents from oil refinery
industry / thermal power plants / textile industries / woolen mills / dye industries / electroplating
industries / cement plants / leather industries (any two may be asked)
21.
Explain briefly the process of Equalization and Neutralization of waste water of varying
characteristics discharged from an Industry.
22.
Explain briefly the Physical treatments “Sedimentation” and “Floatation” processes in the waste
water treatment.
23.
Explain briefly when and how chemical / biological treatments are given to the waste water.
24.
List the four common advanced waste water treatment processes and the pollutants they
remove.
25.
Describe refractory organics and the method used to remove them from the effluent.
26.
Explain biological nitrification and de-nitrification.
27.
Describe the basic approaches to land treatment of Industrial Effluent.
28.
Describe the locations for the ultimate disposal of sludge and the treatment steps needed prior
to ultimate disposal.
29.
List any five Industries, which act as the major sources for Hazardous Air Pollutants.
30.
List out the names of any three hazardous air pollutants and their effects on human health.
31.
Explain the influence of moisture, temperature and sunlight on the severity of air pollution
effects on materials.
32.
Differentiate between acute and chronic health effects from Air pollution.
33.
Define the term Acid rain and explain how it occurs.
34.
Discuss briefly the causes for global warming and its consequences
35.
Suggest suitable Air pollution control devices for a few pollutants and sources.
36.
Explain how evaporative emissions and exhaust emissions are commonly controlled.
37.
What are the harmful elements present in the automobile smokes? How their presence could
be controlled?
38.
What is the Advantage of Ozone layer in the atmosphere? State few reasons for its destruction.
39.
Explain the mechanism by which hearing damage occurs.
40.
List any five effects of noise other than hearing damage.
41.
Explain why impulsive noise is more dangerous than steady state noise.
42.
Explain briefly the Source – Path – Receiver concept of Noise control.
43.
Where silencers or mufflers are used ? Explain how they reduce the noise.
44.
Describe two techniques to protect the receiver from hearing loss when design / redress for
noise control fail.
45.
What are the problems faced by the people residing along the side of a railway track and near
to an Airport? What provisions could be made in their houses to reduce the problem?
260 | P a g e
3. DISASTER MANAGEMENT
1.
What is meant by Disaster Management? What are the different stages of Disaster
management?
2.
Differentiate Natural Disasters and Man made Disasters with examples.
3.
Describe the necessity of Risk identification and Assessment Surveys while planning a project.
4.
What is Disasters recovery and what does it mean to an Industry?
5.
What are the factors to be considered while planning the rebuilding works after a major disaster
due to flood / cyclone / earthquake? (Any one may be asked)
6.
List out the public emergency services available in the state, which could be approached for
help during a natural disaster.
7.
Specify the role played by an Engineer in the process of Disaster management.
8.
What is the cause for Earthquakes? How they are measured? Which parts of India are more
vulnerable for frequent earthquakes?
9.
What was the cause for the Tsunami 2004 which inflicted heavy loss to life and property along
the coast of Tamilnadu ? Specify its epicenter and magnitude.
10.
Specify the Earthquake Hazard Zones in which the following towns of Tamilnadu lie:
Chennai (b) Nagapattinam (c) Coimbatore (d) Madurai (e) Salem.
11.
Which parts of India are experiencing frequent natural calamities such as (a) heavy rain fall (b)
huge losses due to floods (c) severe cyclones
12.
Define basic wind speed. What will be the peak wind speed in (a) Very high damage risk zone
– A, (b) High damage risk zone, (c) Low damage risk zone.
13.
Specify the minimum distance from the Sea shore and minimum height above the mean sea
level, desirable for the location of buildings.
14.
Explain how the topography of the site plays a role in the disasters caused by floods and
cyclones.
15.
Explain how the shape and orientation of buildings could reduce the damages due to cyclones.
16.
What is a cyclone shelter ? When and where it is provided ? What are its requirements ?
17.
What Precautionary measures have to be taken by the authorities before opening a dam for
discharging the excess water into a canal/river ?
18.
What are the causes for fire accidents ? Specify the remedial measures to be taken in buildings
to avoid fire accidents.
19.
What is a fire escape in multistoried buildings ? What are its requirements ?
20.
How the imamates of a multistory building are to be evacuted in the event of a fire/Chemical
spill/Toxic Air Situation/ Terrorist attack, (any one may be asked).
21.
Describe different fire fighting arrangements to be provided in an Industry.
22.
Explain the necessity of disaster warning systems in Industries.
23.
Explain how rescue operations have to be carried out in the case of collapse of buildings due to
earthquake / blast / Cyclone / flood.
24.
What are the necessary steps to be taken to avoid dangerous epidemics after a flood disaster?
25.
What relief works that have to be carried out to save the lives of workers when the factory area
is suddenly affected by a dangerous gas leak / sudden flooding ?
26.
What are the difficulties faced by an Industry when there is a sudden power failure? How such a
situation could be managed?
(a)
261 | P a g e
27.
What are the difficulties faced by the Management when there is a group clash between the
workers? How such a situation could be managed?
28.
What will be the problems faced by the management of an Industry when a worker dies
because of the failure of a mechanical device due to poor maintenance? How to manage such
a situation ?
29.
What precautionary measures have to be taken to avoid accidents to labourers in the Industry
in a workshop / during handling of dangerous Chemicals / during construction of buildings /
during the building maintenance works.
30.
Explain the necessity of medical care facilities in an Industry / Project site.
31.
Explain the necessity of proper training to the employees of Industries dealing with hazardous
products, to act during disasters.
32.
What type of disaster is expected in coal mines, cotton mills, Oil refineries, ship yards and gas
plants?
33.
What is meant by Emergency Plan Rehearsal? What are the advantages of such Rehearsals?
34.
What action you will take when your employees could not reach the factory site because of
continuous strike by Public Transport workers?
35.
What immediate actions you will initiate when the quarters of your factory workers are suddenly
flooded due to the breach in a nearly lake / dam, during heavy rain?
36.
What steps you will take to avoid a break down when the workers union of your Industry have
given a strike notice?
37.
List out few possible crisis in an organization caused by its workers? What could be the part of
the middle level officials in managing such crisis?
38.
What types of warning systems are available to alert the people in the case of predicted
disasters, such as floods, cyclone etc.
39.
Explain the necessity of Team work in the crisis management in an Industry / Local body.
40.
What factors are to be considered while fixing compensation to the workers in the case of
severe accidents causing disability / death to them?
41.
Explain the legal / financial problems the management has to face if safely measures taken by
them are found to be in adequate.
42.
Describe the importance of insurance to men and machinery of an Industry dealing with
dangerous jobs.
43.
What precautions have to be taken while storing explosives in a match/ fire crackers factory?
44.
What are the arrangements required for emergency rescue works in the case of Atomic Power
Plants?
45.
Why residential quarters are not constructed nearer to Atomic Power Plants?
************
262 | P a g e
23091 INDUSTRIAL TRAINING –I & 23092 INDUSTRIAL TRAINING –II
Guide Lines
1. Introduction
The main objective of the sandwich Diploma Course is to mould a well rounded technician
acclimated with industrial environment while being a student in the institution.
The Sandwich Diploma Course study is pursued by students, in 7 semesters of 3½ years
duration, the subjects of 3 years - Full Time Diploma Course being regrouped for academic
convenience.
While in the 4th semester students under Industrial Training for 6 months (December through
May). They also do course work in the institution for one day in a week, while in the 7th semester they
undergo another spell of 6 months (June through November) industrial training.
The Apprenticeship (Amendment) Act 1973 is followed in regulating the Industrial training
procedure for Sandwich Course.
I SEM
II SEM
III SEM
IV SEM
V SEM
VI SEM
VII SEM
Institutional Study
Industrial Training
Industrial Training Period
First Spell
Second Spell
- IV Semester (December - May)
- VII Semester (June - November)
2. Attendance Certification
Every month students have to get their attendance certified by industrial supervisor in the
prescribed form supplied to them. Students have also to put their signature on the form and submit it
to the institution supervisor. Regularity in attendance and submission of report will be duly considered
while awarding the internal marks.
3. Training Reports
The students have to prepare two types of reports;
• Weekly report in the form of diary to be submitted to the concerned staff in charge of
the institution. This will be reviewed while awarding Internal marks.
• Comprehensive report at the end of each spell which will be used for Board
Examination.
263 | P a g e
3.1 Industrial Training Diary
Students are required to maintain the record of day - to- day work done. Such record is called
Industrial training Diary. Students have to write these reports regularly. All days for the week should
be accounted for clearly giving attendance particulars (Presence, Absence, Leave, and Holidays etc).
The concern Industrial supervisor is to check periodically these progress reports.
3.2 Comprehensive Training Report
In addition to the diary, students are required to submit a comprehensive report on training
with details of the organization where the training was undergone after attestation by the supervisors.
The comprehensive report should be incorporating study of plant/ product /process/ construction
along with intensive in-depth study on any one of the topics such as processes, methods, tooling,
construction and equipment, highlighting aspects of quality, productivity and system. The
comprehensive report should be completed in the last week of
Industrial training. Any data, drawings etc should be incorporated with the consent of the
Organization.
4. Scheme of Evaluation
4.1 Internal Marks
First review (during 3rd month)
Second review (during 5th month)
Attendance
: 10 marks
: 10 marks
: 05 marks (Awarded same as in Theory)
Total
: 25 marks
4.2 Board Examination
Presentation about Industrial Training
Comprehensive Training Report
Viva-voce
: 20 marks
: 30 marks
: 25 marks
Total
: 75 marks
-QQQ-
264 | P a g e
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement