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Alternators

Alternators
The number of poles in turbo alternators is usually

2
50
4
12

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Alternators
In a large generator, dampers

None of the listed here
Increase stability
Reduce frequency fluctuations
Reduce voltage fluctuations

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Alternators
A lower voltage alternator, for the same power rating, will be

More costly
More efficient
Larger in size
Operating at high rpm

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Alternators
When load on an alternator is increased, the terminal voltage increases if the load pf is ______

Zero
Lagging
Leading
Unity

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Alternators
If the number of poles of an alternator is increased, the generated emf

Decreases
None of the listed here
Increases
Remains the same

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Alternators
Where the terminal voltage of an alternator falls on throwing of the load, it indicates that the load is purely

Inductive
Resistive
Capacitive
None of the listed here

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MORE MCQ ON Alternators

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