DGVCL Exam Paper (11-12-2011)
An IDMT relay provides

A definite time cuttent characteristic
An inverse characteristic for low values of the fault current and a definite time characteristic for high values of the fault current
A definite time characteristic for low values of the failt current and an inverse characteristic for high values of the fault current
An inverse time current characteristic

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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)
A fuse wire should have

Low specific resistance and low melting point
Low specific resistance and high melting point
High specific resistance and low melting point
High specific resistance and high melting point

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