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Alternators

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

0.866
1
None of the listed here
0.5

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Alternators
The dark and bright lamp method is used for

Synchronizing
Balancing of load
Transfer of load
Phase sequence

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Alternators
In an alternator the armature reaction is mainly influenced by

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

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Alternators
The speed of a salient pole machine is nearly

1500 rpm
3000 rpm
1000 rpm
500 rpm

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Alternators
Iron and friction losses of an alternator can be measured by a

Dc motor
Transformer
Rectifier
None of the listed here

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Alternators
An alternator coupled to which primemover will usually have the highest rotating speed?

Reciprocating diesel engine
Francis turbine
Steam turbine
Steam engine

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