B.Sc. DEGREE EXAMINATION, NOVEMBER 2017
Aeronautical Science
BASIC ELECTRICITY AND ELECTRONICS
(Upto 2015 batch)
Time 3 Hours Maximum 75 Marks
Part A x 3 15)
Answer any five questions.
1. State and explain Ohm's law.
2. What is a DC generator?
3. State how single phase induction motor works.
4. Mention some applications of function generators.
5. How half wave rectifier works?
6. What is leakage factor?
7. Give the types of transistors.
8. Explain power loss in a transformer.
Part B x 12 60)
Answer all questions.
9. State and explain Kirchoffs law.
State and explain norton's theorem.
Or
Discuss nodal voltage analysis, mechanical analysis.
Sub. Code
24
CP-7856
2
Sp 1
10. What are the different types of generators? Explain
the characteristics of generators.
Or
Describe working of transformer and explain the
different types of single phase transformer.
11. Explain briefly slip torque characteristics of cage
and wound rotor.
Or
Briefly explain the construction and principle of
operations of induction motor.
12. What is UJT? Describe its construction and
characteristics mention its application.
Or
With necessary circuit diagram explain the
operation of multimeter, voltmeter and ammeter.
13. Explain the construction and working of a full wave
rectifier with neat circuit diagram. Calculate its
rectification efficiency.
Or
Write notes on:
Voltage regulator
SMPS
Transformer utility factor.
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