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.Management Sciences
Category: Electrical Engineering Mcqs
Excessive formation of lead sulphate on the surface of the plates happens because of___________?
A. allowing a battery to stand in discharged condition for a long time
B. topping up with electrolyte
C. persistent undercharging
D. low level of electrolyte
E. all above
A closed surface contains two equal and opposite charges. The net electric flux from the surface will be________________?
A. negative
B. positive
C. zero
D. data is insufficient
Which of the following is a bilateral element?
A. Constant current source
B. Constant voltage source
C. Capacitance
D. None of the above
A reluctance motor_________________?
A. is provided with slip rings
B. requires starting gear
C. has high cost
D. is compact
Transistor biasing is done to keep _____________in the circuit?
A. Proper direct current
B. Proper alternating current
C. The base current small
D. Collector current small
For forced draught system, the function of chimney is mainly_____________?
A. to produce draught to accelerate the combustion of fuel
B. to discharge gases high up in the atmosphere to avoid hazard
C. to reduce the temperature of the hot gases discharged
D. none of the above
Two multimeters A and B have sensitivities of 10 kO/V and 30 kO/V respectively. Then ______________?
A. Multimeter A is more sensitive
B. Multimeter B is more sensitive
C. Both are equally sensitive
D. None of the above
The pressure on the two sides of the impulse wheel of a steam turbine_____?
A. is same
B. is different
C. increases from one side to the other side
D. decreases from one side to the other side
Thyristor can be protected from over voltages by using____________?
A. voltage clamping device.
B. fuse.
C. heat sink.
D. snubber circuit.
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