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Alternators

Alternators
What is the largest size of a alternator being manufactured in india?

250MW
210 MW
500 MW
110 MW

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Alternators
The losses in an alternator are the same as in

None of the listed here
A rectifier
A dc machine
A transformer

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Alternators
In huge alternators, the moving part is

None of the listed here
Poles
Brushes
Armature

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Alternators
If the number of poles of an alternator is increased, the generated emf

Remains the same
Decreases
None of the listed here
Increases

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Alternators
Modern 3-phase alternator of a central power station will have generated voltage of

230 V
400 V
11 kV
132 kV

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Alternators
The disadvantaged of a short pitched coil is that _______

Harmonics are introduced
Voltage round the coil is reduced
Waveform becomes non-sinusoidal
None of the listed here

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