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Alternators

Alternators
A two pole alternator is running at 1500 rpm. Its angular velocity is ______

118 rad/s
157 rad/s
192 rad/s
212 rad/s

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Alternators
In huge alternators, the moving part is

Brushes
Poles
None of the listed here
Armature

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

0.866 lagging
0.866 leading
0.5 lagging
Unity

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Alternators
The power factor of an alternator is determined by its

Excitation
Primemover
Speed
Load

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Alternators
Iron and friction losses of an alternator can be measured by a

Rectifier
Transformer
None of the listed here
Dc motor

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

0.85
0.76
0.995
0.65

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