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Alternators

Alternators
Copper losses of an alternator can be measured by

Transformer
None of the listed here
Rectifier
Dc motor

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Alternators
Where the terminal voltage of an alternator falls on throwing of the load, it indicates that the load is purely

Inductive
Capacitive
None of the listed here
Resistive

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Alternators
Hydrogen is used in large alternators mainly to

Reduce distortion of waveform
Cool the machine
Reduce eddy current losses
Strengthen the magnetic field

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Alternators
The non salient field construction is used for _______ alternator.

High speed
Low speed
Medium speed
None of the listed here

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

Diesel engines
Water turbines
Steam turbines
None of the listed here

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Alternators
When load on an alternator is increased, the terminal voltage increases if the load pf is ______

Leading
Lagging
Unity
Zero

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