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

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

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DGVCL Exam Paper (11-12-2011)
Two parallel conductors are carrying the current in the same direction. Which of the following statements is correct?

There is a repelling force between the conductors
There is an attracting force between the conductors
The force increases when the distance between the conductors is decreased
The force increases when the distance between the conductors is increased

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DGVCL Exam Paper (11-12-2011)
The purpose of embedding the damper winding in the pole face of a synchronous motor is to

Reduce winding losses
Eliminate losses on account of fair friction
Reduce bearing friction
Eliminate hunting and provide adequate starting torque

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