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Alternators

Alternators
Which of the following prime movers is the least efficient?

Steam turbine
Steam engine
Diesel engine
Gas turbine

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Alternators
A 3 phase alternator has 3-slot per pole. The distribution factor of the winding is _______

0.866
1
None of the listed here
0.5

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Alternators
When load on an alternator is increased, the terminal voltage increases if the load pf is ______

Leading
Zero
Unity
Lagging

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

0.76
0.85
0.995
0.65

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

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

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Alternators
An alternator is somtimes called _______ generator.

Synchronous
Asynchronous
Rosenberg
None of the listed here

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