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Alternators

Alternators
The speed of an alternator is changed from 3000 rpm to 1500 rpm. The generated emf/phase will become

Double
Half
Unchanged
One fourth

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Alternators
The alternators driven by _______ do not have a tendency to hunt.

Water turbines
None of the listed here
Diesel engines
Steam turbines

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

500 MW
110 MW
250MW
210 MW

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

0.866
1
0.5
None of the listed here

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Alternators
The stator of an alternator rarely uses _____slots.

None of the listed here
Semi-closed type
Wide open type
Closed type

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Alternators
Armature winding of an alternator are generally

Closed winding
Partly open and partly closed windings
Open winding
None of the listed here

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