Reg. No.
B.E. B.Tech. DEGREE EXAMINATION, MAY 2017
Second Semester
Civil Engineering
01UEE206- BASIC ELECTRICAL AND ELECTRONICS ENGINEERING
(Common to Mechanical Engineering)
(Regulation 2013)
Duration: Three hours Maximum: 100 Marks
Answer ALL Questions.
PART A (10 x 2 20 Marks)
1. What are the limitations of ohm's law?
2. Define the principle of moving iron instrument for attraction type.
3. What is meant by transformation ratio?
4. List out the type of single phase induction motors?
5. Give the applications of Zener diode.
6. What is meant by uncontrolled rectifiers?
7. Compare analog and digital signals.
8. What are the basic properties of Boolean algebra?
9. Write the advantages of optical fibre communication.
10. Define the logic operation AND and OR gates with Boolean equation.
PART B x 16 80 Marks)
11. A line voltage of 400 V is applied to three phase star connected identical
impedances each containing of a 4 Ω resistance in series with 3 Ω inductive
reactance. Find line current total power supplied.
Question Paper Code: 31326
2
31326
Explain the construction details and principle of operation of an attraction
type moving iron instrument.
Or
Compare PMMC and MI Instruments.
Explain the principle and operation of dynamometer type wattmeter and
derive deflecting torque. Write advantages and disadvantages.
12. Explain the working and principle of single phase transformer.
Explain the construction and working principle of any two type of single
phase Induction motors with neat diagram.
Or
With neat sketches, Explain the working principle and the construction of DC
motor. Also derive the torque and speed equation.
13. Explain the half wave and full wave rectifier with neat circuit diagram and wave
forms.
Or
Explain the various characteristics of BJT in common emitter configuration with
neat diagram.
14. Draw a full adder using logic gates . Explain the truth table with expression
of sum and carry.
Explain in detail about R.S flip flop and flip flop.
Or
Write in detail about Analog to Digital converter and Full adder with necessary
diagram.
15. With the help of block diagram describe the working of a satellite
communication and it's short due on earth station receiver.
Or
Write a short note on amplitude modulation and frequency modulation.
Explain the basis of fiber optical communication system.