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Alternators

Alternators
Copper losses of an alternator can be measured by

Rectifier
Transformer
None of the listed here
Dc motor

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Alternators
In an alternator, the effect of armature reaction is minimum at power factor of ______

0.866 leading
0.866 lagging
0.5 lagging
Unity

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Alternators
The number of poles in turbo alternators is usually

12
2
4
50

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Alternators
The non salient field construction is used for _______ alternator.

Low speed
Medium speed
None of the listed here
High speed

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Alternators
When two alternators are running in exact synchronism, the synchronising power will be

Unity
None of the listed here
Sum of the output of two
Zero

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Alternators
An alternator is somtimes called _______ generator.

Asynchronous
Rosenberg
None of the listed here
Synchronous

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