SSC JE Electrical 2019 with solution SET-1
 The average value of a sinusoidal wave is:

0.5 × maximum value
2 × maximum value
0.637 × maximum value
√2 × maximum value

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SSC JE Electrical 2019 with solution SET-1
 Three lamps are connected in series across a 120V supply and take a current of 1.5A. If the resistance of two of the lamps is 30Ω, what is the resistance of the third lamp?

10Ω
20Ω
40Ω
30Ω

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

Economizer
Reactor
Chimney
Boiler

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

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