NPCIL Electronics

Hello sir I have applied for the NPCIL now I need the Old Question Papers of Electronics would you please provide me the same ??

As per your demand here is NPCIL Old Question Papers In Electronics 2012

1. An ideal operational amplifier has
A. infinite output impedance
B. zero input impedance
C. infinite bandwidth
D. All of the above

2. Another name for a unity gain amplifier is:
A. difference amplifier
B. comparator
C. single ended
D. voltage follower


3. The open-loop voltage gain (Aol) of an op-amp is the
A. external voltage gain the device is capable of
B. internal voltage gain the device is capable of
C. most controlled parameter
D. same as Acl


4. What is the output waveform?
A. sine wave
B. square wave
C. sawtooth wave
D. triangle wave

5. A series dissipative regulator is an example of a:

A. linear regulator
B. switching regulator
C. shunt regulator
D. dc-to-dc converter

6. An inductance of 0.08 H is larger than

A. 0.0000008 H
B. 0.000000008 H
C. 0.000008 H
D. 0.00008 mH

7. A 240 H inductor is equivalent to a

A. 0.240 mH inductor
B. 0.000240 mH inductor
C. 240 mH inductor
D. 240 H inductor

8. A 2 mH, a 3.3 mH, and a 0.2 mH inductor are connected in series. The total inductance is

A. 55 mH
B. less than 0.2 mH
C. less than 5.5 mH
D. 5.5 mH

9. A 5 mH, a 4.3 mH, and a 0.6 mH inductor are connected in parallel. The total inductance is
A. 9.9 mH
B. greater than 5 mH
C. 9.9 mH or greater than 5 mH
D. less than 0.6 mH

10. The voltage across a coil when di/dt = 20 mA/s and L = 8 H is

A. 16 mV
B. 160 mV
C. 1.6 mV
D. 2.5 mV

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Answered By StudyChaCha Member