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Alternators

Alternators
Copper losses of an alternator can be measured by

Rectifier
Transformer
Dc motor
None of the listed here

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Alternators
Alternators are usually design to generate

Definite currents
Definite frequencies
Definite power factor
Variable frequncies

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Alternators
Excessive windage loss and noise occur with

Salient pole rotors
Cylindrical rotors
None of the listed here
Either cylindrical or salient

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Alternators
An alternator is somtimes called _______ generator.

None of the listed here
Synchronous
Rosenberg
Asynchronous

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Alternators
Turbo alternator are generally used to run at

5000 rpm
15000 rpm
3000 rpm
1500 rpm

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Alternators
An under excited alternator supplies _______

No reactive power
Lagging VAR
Leading VAR
None of the listed here

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MORE MCQ ON Alternators

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