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Alternators

Alternators
Turbo alternators are generally used to run at

5000 rpm
3000 rpm
1500 rpm
1500 rpm

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Alternators
The dark and bright lamp method is used for

Balancing of load
Transfer of load
Synchronizing
Phase sequence

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Alternators
The field winding of an alternator is _____ excited.

AC
DC
Both DC and AC
None of the listed here

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Alternators
Damper windings are used in alternators to

None of the listed here
Reduce windage loss
Achieve synchronism
Prevenent hunting

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Alternators
Turbo alternators have rotors of _______

Large diameter and small axial length
Small diameter and long axial length
Same diameter and axial length
Large diameter and long axial length

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Alternators
In an alternator, the frequency of voltage generated depend on

None of the listed here
Both rotative speed and number of poles
Number of poles only
Rotative speed only

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MORE MCQ ON Alternators

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