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Alternators

Alternators
The rating of an alternator is expressed in______

HP
kVAR
kW
kVA

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Alternators
In an alternator, armature reaction is considered equivalent to

Fictitious reactance
Fictitious resistance
Fictitious conductance
Fictitious impedance

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Alternators
Alternators are usually design to generate

Definite power factor
Variable frequncies
Definite currents
Definite frequencies

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Alternators
The voltage regulation of an alternator for a pf of 0.8 lagging is _______at unity pf.

None of the listed here
Greater than
The same as
Smaller than

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Alternators
The full load efficiency of an alternator _______with increases in speed.

Remains unchanged
Increases
None of the listed here
Decreases

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Alternators
The ac armature winding of an alternator is _______

Star-delta connected
None of the listed here
Always star connected
Generally delta connected

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