DGVCL Exam Paper (11-12-2011)
The form factor in AC means the ration of

R.M.S. value to average value
R.M.S. value to peak value
Peak value to average value
Peak value to r.m.s value

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

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

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

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