DGVCL Exam Paper (11-12-2011)
An over excited synchronous motor draws current at

Leading power factor
Lagging power factor
Depends on nature of load
Unity power factor

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DGVCL Exam Paper (11-12-2011)
The main advantage of using fractional pitch winding is to refuce

Amount of copper in the winding
Size of the machine
Cost of the machine
Harmonics in the generated emf

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