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Alternators

Alternators
The speed of a salient pole machine is nearly

3000 rpm
500 rpm
1000 rpm
1500 rpm

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

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

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

0.866
0.5
None of the listed here
1

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

0.995
0.85
0.65
0.76

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

0.5 lagging
0.866 lagging
0.866 leading
Unity

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Alternators
When the speed of an alternator is reduced by half, the generated emf will become

One-fourth
Twice
Four times
Half

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MORE MCQ ON Alternators

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