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

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

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

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

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DGVCL Exam Paper (11-12-2011)
The corona effect can be minimized by increasing

Spacing between the conductors
Diameter of the conductor
The length of the conductor
Both spacing between the conductors and diameter of the conductor

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