Explore topic-wise MCQs in Electrical Engineering Questions.

This section includes 29 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering Questions knowledge and support exam preparation. Choose a topic below to get started.

1.

One would find a clamping circuit in ___________________?
A. Receiving antenna
B. Radio transmitter
C. Radio receiver
D. Television receiver
Answer» E.
Discussion
2.

An integrating circuit is a simple RC series circuit with output taken across ______________?
A. Both R and C
B. R
C. C
D. None of the above
Answer» D. None of the above
Discussion
3.

A negative clipper removes the ______________half-cycles of the input voltage?
A. Negative
B. Positive
C. Both positive and negative
D. None of the above
Answer» B. Positive
Discussion
4.

When the transistor (CE arrangement) is in the cut off region, the collector current is ______________?
A. ICBO
B. ICEO
C. (ß + 1) ICEO
D. IC(sat)
Answer» C. (ß + 1) ICEO
Discussion
5.

When a transistor is used as an amplifier, it is operated in the _____________ region?
A. Off
B. Saturation
C. Active
D. None of the above
Answer» D. None of the above
Discussion
6.

A differentiating circuit is a simple RC circuit with output taken across ____________?
A. R
B. C
C. Both R and C
D. None of the above
Answer» B. C
Discussion
7.

If the input to an integrating circuit is a succession of alternating positive and negative pulses of very short duration, the output will be _____________wave A?
A. Rectangular
B. Triangular
C. Sine
D. Square
Answer» E.
Discussion
8.

In a multivibrator, we have___________ feedback?
A. Negative
B. 100 % positive
C. Both positive and negative
D. None of the above
Answer» C. Both positive and negative
Discussion
9.

A bistable multivibrator has _________________?
A. Two stable states
B. One stable state
C. No stable state
D. None of the above
Answer» B. One stable state
Discussion
10.

A relay is superior to a mechanical switch because it _______________?
A. Is relatively inexpensive
B. Does not require moving contacts
C. Combines control with power amplification
D. None of the above
Answer» D. None of the above
Discussion
11.

______________ multivibrator is a square wave oscillator?
A. Monostable
B. Astable
C. Bistable
D. None of the above
Answer» C. Bistable
Discussion
12.

For a differentiating circuit to be effective, the RC product should be ___________ the time period of the input wave?
A. Equal to
B. 5 times greater than
C. 5 times smaller than
D. At least 10 times greater than
Answer» E.
Discussion
13.

When a transistor is driven to saturation, ideally the output is _____________?
A. VCC
B. 0
C. VCC/2
D. 2VCC
Answer» C. VCC/2
Discussion
14.

A monostable vibrator has_____________
A. No stable state
B. One stable state
C. Two stable states
D. None of the above
Answer» C. Two stable states
Discussion
15.

When a transistor is driven to cut off, ideally the output is _______________?
A. VCC
B. 0
C. VCC/2
D. VCC/3
Answer» B. 0
Discussion
16.

The positive clipper is that which removes the ____________half-cycles of the input voltage?
A. Negative
B. Positive
C. Both positive and negative
D. None of the above
Answer» C. Both positive and negative
Discussion
17.

The multivibrator which generates square wave of its own is the ____________multivibrator?
A. Monostable
B. Bistable
C. Astable
D. None of the above
Answer» D. None of the above
Discussion
18.

When a rectangular voltage waveform is applied to a capacitor, then the current waveform is ______________?
A. Rectangular
B. Sinusoidal
C. Sawtooth
D. Square
Answer» B. Sinusoidal
Discussion
19.

If the input to a differentiating circuit is a saw-tooth wave, then output will be _____________?
A. Square
B. Triangular
C. Sine
D. Rectangular
Answer» E.
Discussion
20.

If a square wave is fed to a differentiating circuit, the output will be _____________?
A. Sine wave
B. Sharp narrow pulses
C. Rectangular wave
D. Triangular wave
Answer» C. Rectangular wave
Discussion
21.

If d.c. supply of 10 V is fed to a differentiating circuit, then output will be_______________?
A. 20 V
B. 10 V
C. 0 V
D. None of the above
Answer» D. None of the above
Discussion
22.

The switch that has the fastest speed of operation is ____________ switch?
A. Electronic
B. Mechanical
C. Electromechanical
D. None of the above
Answer» B. Mechanical
Discussion
23.

The main disadvantage of a mechanical switch is that it_______________?
A. Is operated mechanically
B. Is costly
C. Has high inertia
D. None of the above
Answer» D. None of the above
Discussion
24.

The most inexpensive switch is _____________ switch?
A. Electronic
B. Mechanical
C. Electromechanical
D. None of the above
Answer» B. Mechanical
Discussion
25.

The maximum speed of electronic switch can be _____________operations per second?
A. 104
B. 10
C. 1000
D. 109
Answer» E.
Discussion
26.

An astable multivibrator has ________________?
A. One stable state
B. Two stable states
C. No stable state
D. None of the above
Answer» D. None of the above
Discussion
27.

A switch has ______________?
A. One state
B. Two states
C. Three states
D. None of the above
Answer» C. Three states
Discussion
28.

A relay is ___________switch?
A. A mechanical
B. An electronic
C. An electromechanical
D. None of the above
Answer» D. None of the above
Discussion
29.

For an integrating circuit to be effective , the RC product should be____________ the time period of the input wave?
A. 5 times greater than
B. 5 times smaller than
C. Equal to
D. At least 10 times greater than
Answer» E.
Discussion