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.Management Sciences
Category: Electrical Engineering Mcqs
A 100 V carrier is made to vary between 160 V and 40 V by the signal. What is the modulation factor ?
A. 3
B. 6
C. 5
D. None of the above
The voltage of domestic supply is 220V. This figure represents__________?
A. mean value
B. r.m.s. value
C. peak value
D. average value
A MOSFET differs from a JFET mainly because _________________?
A. of power rating
B. the MOSFET has two gates
C. the JFET has a pn junction
D. none of the above
The information to the circuit breaker under fault conditions is provided by____________?
A. relay
B. rewirable fuse
C. H.R.C. only
D. all of the above
Low tension cables are generally used up to___________?
A. 200 V
B. 500 V
C. 700 V
D. 1000 V
If 1 A current flows in a circuit, the number of electrons flowing through this circuit is
A. 0.625 × 1019
B. 1.6 × 1019
C. 1.6 × 10-19
D. 0.625 × 10-19
(more…)
A no-load test is performed on a transformer to determine_______________?
A. core loss
B. copper loss
C. efficiency
D. magnetising current
E. magnetising current and loss
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
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