STUPIDSID
1 (a)
Explain the function of delay line in oscilloscope. What are the types of delay lines?
5 M
1 (b)
Compare a true RMS meter with an average responding meter.
5 M
1 (c)
Explain the necessity of damping torque in an indicating instrument.
5 M
1 (d)
What is back emf. What is the effect of back emf in a.d.c. motor.
5 M
2 (a)
Explain the digital phase meter using flip-flop. Write its advantages and disadvantages.
10 M
2 (b)
Draw the circuit diagram of a schering bridge and derive the condition for balance. Draw phasor diagram.
10 M
3 (a)
Explain different methods for speed control of D.C. motor.
10 M
3 (b)
Draw and explain the front panel of dual trace oscilloscope.
10 M
4 (a)
What are the Requirements of a good laboratory type signal generator? Explain A.F. signal generator.
10 M
4 (b)
Explain the principle of operation of PMMC and moving Iron type of instruments. Compare the two basic types.
10 M
5 (a)
Explain construction and working of digital frequency meter with the help of neat labelled diagram.
10 M
5 (b)
Explain starting methods of Induction motor.
10 M
6 (a)
Write a note on-DSO
10 M
6 (b)
Explain R-2 R ladder technique used in D to A conversion.
10 M
Write short notes on :-
7 (a)
Megger
5 M
7 (b)
FET Voltmeter.
5 M
7 (c)
Maxwell's Inductance bridge.
5 M
7 (d)
Function of CT in CRO.
5 M
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