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QUESTIONS

Alternators
The rating of an alternator is expressed in______

HP
kVAR
kW
kVA

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Alternators
Damper windings are used in alternators to

Achieve synchronism
Reduce windage loss
None of the listed here
Prevenent hunting

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Alternators
When the speed of an alternator is reduced by half, the generated emf will become

Twice
Half
One-fourth
Four times

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Alternators
The magnitude of emf generated by an alternators depends on ______

All of the listed here
Rotor speed
Flux per pole
Number of poles

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Alternators
The alternators driven by _______ do not have a tendency to hunt.

Water turbines
None of the listed here
Diesel engines
Steam turbines

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