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

The force increases when the distance between the conductors is increased
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

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

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

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DGVCL Exam Paper (11-12-2011)
Buchholz relay causes

Tripping for minor faults and alarm for major faults
Tripping for major faults and alarm for minor faults
Tripping for both major and minor faults
Alarm for both major and minor faults

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