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Alternators

Alternators
Turbo alternators are generally used to run at

3000 rpm
1500 rpm
5000 rpm
1500 rpm

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Alternators
In a cylindrical rotor how much portion of the rotor is wound?

Two third
Full
Half
One third

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

Steam turbines
None of the listed here
Water turbines
Diesel engines

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Alternators
The number of poles in turbo alternators is usually

2
4
12
50

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Alternators
Three phase alternators are invariably star commected because

Less turns of wire are required
Small conductors can be used
Magnetic losses are the minimum
Higher terminal voltage is obtained

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Alternators
The field winding of an alternator is _____ excited.

AC
Both DC and AC
DC
None of the listed here

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