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Alternators

Alternators
Turbo alternators are generally used to run at

3000 rpm
1500 rpm
5000 rpm
1500 rpm

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Alternators
For the same rating, the size of low speed alternator is ______that of high speed alternator.

None of the listed here
More than
About the same as
Less than

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Alternators
Armature winding of an alternator are generally

Closed winding
Partly open and partly closed windings
None of the listed here
Open winding

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

Francis turbine
Steam turbine
Reciprocating diesel engine
Steam engine

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Alternators
The number of cycles generated in a 6-pole alternators in one revolution is _______

3
50
6
None of the listed here

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