DGVCL Exam Paper (11-12-2011)
The purpose of skewing of rotor slots in an induction motor is

To reduce the magnetic hum of the motor
To increase the breadth factor
To reduce the locking tendency of the rotor
To increase the distributuion factor

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DGVCL Exam Paper (11-12-2011)
The purpose of interpoles in DC machines is to nullify

The demagnetizing effect of armature mmf
Both the cross-magnetizing mmf and the reactance voltage
The reactance voltage
The cross-magnetizing effect of armature mmf

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DGVCL Exam Paper (11-12-2011)
The motor used in celling fans is

Split phase motor
Capacitor start capacitor run motor
Universal motor
Capacitor start motor

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