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.Management Sciences
Category: Electrical Engineering Mcqs
In a mercury arc rectifier, the anode is usually made of_____________?
A. copper
B. aluminium
C. silver
D. graphite
E. tungsten
In a cable capacitor, voltage gradient is maximum at the surface of the______________?
A. earth
B. conduction
C. sheath
D. insulator
Wagner earthing device is used to eliminate errors due to________________?
A. electrostatic coupling
B. electromagnetic coupling
C. both A. and B.
D. none of the above
The modern steam turbines are___________?
A. impulse turbines
B. reaction turbines
C. impulse-reaction turbines
D. none of the above
An over excited synchronous motor is used for____________?
A. fluctuating loads
B. variable speed loads
C. low torque loads
D. power factor corrections
The under voltage relay can be used for______________?
A. generators
B. busbars
C. transformers
D. motors
E. all of the above
The direction of magnetic lines of force is________________?
A. from south pole to north pole
B. from north pole to south pole
C. from one end of the magnet to another
D. none of the above
The thickness of the layer of insulation on the conductor, in cables, depends upon___________?
A. reactive power
B. power factor
C. voltage
D. current carrying capacity
For measurement of mutual inductance we can use________________?
A. Anderson bridge
B. Maxwell’s bridge
C. Heaviside bridge
D. Any of the above
The chemical used in breather is_______________?
A. asbestos fiber
B. silica sand
C. sodium chloride
D. silica gel
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