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Alternators

Alternators
In case of a uniformly distributed winding, the value of distribution factor is

0.65
0.995
0.76
0.85

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

0.866 lagging
Unity
0.866 leading
0.5 lagging

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Alternators
In huge alternators, the moving part is

None of the listed here
Armature
Poles
Brushes

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Alternators
Voltage regulation of an alternator is usually

Much higher than that of a power transformer
None of the listed here
Much lower than that of power transformer
Equal to that of power transformer

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Alternators
The synchronous reactance of an alternator is generally _______ armature resistance.

10 to 100 times greater than
5 times smaller than
5 times greater than
10 times smaller than

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Alternators
The alternators driven by _______ do not have a tendency to hunt.

Diesel engines
Steam turbines
None of the listed here
Water turbines

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