DGVCL Exam Paper (11-12-2011)
The advantage of slipring induction motor over the squirrel cage induction motor is

It's power factor is higher
It can be started with the help of rotor resistances
It has a higher efficiency
It is suitable for higher speeds

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

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

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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
Capacitor start motor
Universal motor

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