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ALTERNATORS

Alternators
Which harmonic will be totally eliminate in an alternator by using a fractional pitch of 4/5 ?

Third
Fifth
Seventh
Ninth

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Alternators
In a cylindrical rotor how much portion of the rotor is wound?

Half
Full
One third
Two third

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Alternators
The speed of an alternator is changed from 3000 rpm to 1500 rpm. The generated emf/phase will become

Double
Unchanged
Half
One fourth

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Alternators
Zero power factor method for alternator is generally used to determine

None of the listed here
Synchronous impedance of alternator
Voltage regulation of the alternator
Efficiency of alternator

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Alternators
In an alternator the armature reaction is mainly influenced by

Short circuit ratio
Total current drawn
Speed of the alternator
The power factor of the load

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