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Alternators

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

0.65
0.76
0.85
0.995

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Alternators
The magnitude of emf generated by an alternators depends on ______

Number of poles
All of the listed here
Flux per pole
Rotor speed

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Alternators
High speed alternators are driven by _____.

Steam turbines
None of the listed here
Diesel engines
Hydraulic turbines

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Alternators
In a large generator, dampers

Reduce voltage fluctuations
None of the listed here
Reduce frequency fluctuations
Increase stability

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Alternators
In case of turbo-alternators the rotor is usually made of

Forged steel
Manganese steel
Laminated stainless steel
Cast iron

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Alternators
In an alternator one of the advantages of distribution the winding is to

Reduce noise
Improve voltage wavefrom
Save on copper
None of the listed here

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