SSC JE Electrical 2019 with solution SET-1
Hunting occurs in a/an motor

DC series
Induction
DC shunt
Synchronous

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SSC JE Electrical 2019 with solution SET-1
 If the copper loss of a transformer at half full load is 400 W, then the copper loss corresponding to full load is

400 W
1200 W
800 W
1600 W

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SSC JE Electrical 2019 with solution SET-1
 What is the reason behind using a centrifugal switch in a single-phase induction motor?

To cut-off the starting winding at an appropriate instant
To protect the motor from overloading
To out in the capacitor during running conditions
To improve the starting performance of the motor

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SSC JE Electrical 2019 with solution SET-1
 If an alternator is operating at unity power factor, then its terminal voltage is

Equal to the induced EMF, with zero voltage regulation
Less than the induced EMF, with positive voltage regulation
Less than the induced EMF, with negative regulation
Greater than the induced EMF, with negative voltage regulation

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