SSC JE Electrical 2019 with solution SET-1
 Lamp efficiency is measured in

Candela/watt
Lumen/lux
Lumen/watt
Lux/watt

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SSC JE Electrical 2019 with solution SET-1
 Which of the following is the correct relation regarding coupled coils?

M = (L1 − L2)/2
M ≤ (L1L2)0.5
M = (L1 + L2)/2
M > (L1L2)0.5

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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

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

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SSC JE Electrical 2019 with solution SET-1
 Which motor is referred to as a universal motor?

Shunt
Series
Synchronous
Single-phase induction

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SSC JE Electrical 2019 with solution SET-1
_____ is NOT a component in a thermal power plant

Chimney
Reactor
Boiler
Economizer

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