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Alternators

Alternators
Turbo alternator are generally used to run at

3000 rpm
5000 rpm
15000 rpm
1500 rpm

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Alternators
The rotor of a turbo alternator is made cylindrical in order to reduce_______

Hysteresis loss
Eddy current loss
Windage loss
None of the listed here

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Alternators
Zero power factor method for alternator is generally used to determine

Efficiency of alternator
None of the listed here
Voltage regulation of the alternator
Synchronous impedance of alternator

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Alternators
In huge alternators, the moving part is

Armature
Poles
None of the listed here
Brushes

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

500 MW
210 MW
110 MW
250MW

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Alternators
Excessive windage loss and noise occur with

Either cylindrical or salient
Salient pole rotors
Cylindrical rotors
None of the listed here

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