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 improve the starting performance of the motor
To out in the capacitor during running conditions
To protect the motor from overloading

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SSC JE Electrical 2019 with solution SET-1
 For a three-layer stranded wire, the number of strands in the first, second, and third layer respectively are:

1, 6 and 12
1, 7 and 14
1, 5 and 10
1, 4 and 8

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SSC JE Electrical 2019 with solution SET-1
 The law that explains about the economic size of a conductor is:

Faraday’s law
Kelvin’s law
Lamberts law
Newton’s law

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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

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

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