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Alternators

Alternators
In aircrafts, alternators have operating frequency of

50 Hz
800 Hz
400 Hz
60 Hz

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Alternators
The stator of an alternator rarely uses _____slots.

Semi-closed type
Closed type
Wide open type
None of the listed here

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Alternators
A 3 phase alternator has 3-slot per pole. The distribution factor of the winding is _______

None of the listed here
0.5
0.866
1

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Alternators
In an alternator the armature reaction is mainly influenced by

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

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Alternators
Copper losses of an alternator can be measured by

Dc motor
Rectifier
None of the listed here
Transformer

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Alternators
In air-crafts, alternators have operating frequency of

50 Hz
500 Hz
400 Hz
60 Hz

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