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.Management Sciences
Category: Electrical Engineering Mcqs
Ampere hour capacity of an industrial battery is based on _______ hours discharge rate
0
A. 8
B. 12
C. 16
D. 24
Which of the following D.C. generators will be in a position to build up without any residual magnetism in the poles?
A. Series generator
B. Shunt generator
C. Compound generator
D. None of the above
If the a.c. input to a half-wave rectifier is an r.m.s value of 400/√2 volts, then diode PIV rating is__________________?
A. 400/√2 V
B. 400 V
C. 400 x √2 V
D. none of the above
Which of the following motors can be run on AC. as well as D.C. supply ?
A. Universal motor
B. Repulsion motor
C. Synchronous motor
D. Reluctance motor
A ferrite core has less eddy current loss than an iron core because_______________?
A. ferrites have high resistance
B. ferrites are magnetic
C. ferrites have low permeability
D. ferrites have high hysteresis
Which of the following bus-bar schemes has the lowest cost?
A. Ring bus-bar scheme
B. Single bus-bar scheme
C. Breaker and a half scheme
D. Main and transfer scheme
The current flow through electrolyte is due to the movement of____________?
A. ions
B. holes
C. electrons
D. none of the above
If the anode current is 800 A, then the amount of current required to turn off the GTO is about____________?
A. 20 A
B. 200 A
C. 600 A
D. 400 A
A tuned amplifier is generally operated in ____________operation?
A. Class A
B. Class C
C. Class B
D. None of the above
The frequency of domestic power supply in Pakistan is_________?
A. 200 Hz
B. 100 Hz
C. 60 Hz
D. 50 Hz
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