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

Capacitor start motor
Universal motor
Split phase motor
Capacitor start capacitor run 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 an attracting force between the conductors
There is a repelling 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 interpoles in DC machines is to nullify

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

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