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Alternators

Alternators
The number of poles in turbo alternators is usually

2
50
12
4

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Alternators
The voltage regulation of an alternator depends on

Both load current and pf
Load current only
None of the listed here
Power factor only

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

Leading
Lagging
Unity
Zero

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Alternators
The salient pole construction for field structure of an alternator is generally used for ______ machine.

4-pole
None of the listed here
8-pole
2-pole

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Alternators
The number of cycles generated in a 6-pole alternators in one revolution is _______

3
6
None of the listed here
50

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Alternators
In air-crafts, alternators have operating frequency of

500 Hz
60 Hz
50 Hz
400 Hz

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