DGVCL Exam Paper (11-12-2011)
A Mho relay is a

Voltage controlled over current relay
Directional restrained over current relay
Directional restrained over voltage relay
Voltage restrained directional relay

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DGVCL Exam Paper (11-12-2011)
Distribution transformers have good all day efficiency due to

Low copper as well as iron loss
Low copper loss
Low iron loss
Low voltage

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

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