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.Management Sciences
Category: Electrical Engineering Mcqs
The purpose of a parallel circuit resonance is to magnify________?
A. current
B. voltage
C. power
D. frequency
Zener diode are generally made of _____________?
A. Germanium
B. Silicon
C. Carbon
D. None of the above
Which of the following distribution systems is more reliable?
A. Radial system
B. Tree system
C. Ring main system
D. All are equally reliable
________________directly converts temperature into voltage?
A. Thermocouple
B. Potentiometer
C. Gear train
D. LVDT
F. None of the above
The design of mechanical parts is particularly important in case of __________ speed machines?
A. low
B. medium
C. high
D. any of the above
The tail current in a differential amplifier equals ______________?
A. difference between two emitter currents
B. sum of two emitter currents
C. collector current divided by current gain
D. collector voltage divided by collector resistance
An RC snubber network used in BJT__________?
A. Divert the collector current during turn – off
B. Improves the reverse bias safe operating area
C. Dissipates a fair amount of switching power
D. All of these
Rotor rheostat control method of speed control is used for____________?
A. squirrel-cage induction motors only
B. slip ring induction motors only
C. both A. and (b)
D. none of the above
The design of electromagnets is based upon which of the following fundamental equations ?
A. Force equation
B. Magnetic circuit equation
C. Heating equation
D. Voltage equation
E. All of the above
Demand factor is defined as___________?
A. average load/maximum load.
B. maximum demand/connected load
C. connected load/maximum demand.
D. average load x maximum load
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