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Alternators

Alternators
The number of poles in turbo alternators is usually

50
12
2
4

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Alternators
Excessive windage loss and noise occur with

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

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Alternators
In an alternator the armature reaction is mainly influenced by

The power factor of the load
Speed of the alternator
Short circuit ratio
Total current drawn

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Alternators
The dark and bright lamp method is used for

Synchronizing
Transfer of load
Balancing of load
Phase sequence

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Alternators
The losses in an alternator are the same as in

A rectifier
A dc machine
A transformer
None of the listed here

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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

Resistive
None of the listed here
Inductive
Capacitive

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MORE MCQ ON Alternators

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