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Alternators

Alternators
In an alternator, for a coil having a span of 2/3 of pole pitch, the coil span factor will be

0.707
0.6
0.2
0.866

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Alternators
In an alternator one of the advantages of distribution the winding is to

Improve voltage wavefrom
Reduce noise
None of the listed here
Save on copper

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Alternators
Turbo alternators have rotors of _______

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

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Alternators
The stator of an alternator is wound for _______on the rotor.

More number of poles than
The same number of poles as
Less number of poles than
None of the listed here

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Alternators
The number of poles in turbo alternators is usually

4
2
50
12

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Alternators
The ac armature winding of an alternator is _______

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

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