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Alternators

Alternators
Copper losses of an alternator can be measured by

Dc motor
Rectifier
None of the listed here
Transformer

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

0.65
0.85
0.995
0.76

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Alternators
In huge alternators, the moving part is

Brushes
None of the listed here
Armature
Poles

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Alternators
High speed alternators are driven by _____.

Hydraulic turbines
Diesel engines
None of the listed here
Steam turbines

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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
The speed of a salient pole machine is nearly

500 rpm
1000 rpm
3000 rpm
1500 rpm

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