DGVCL Exam Paper (11-12-2011)
Hysteresis in an instrument means

The change in the same reading when the input is first increased and then decreased
The repeatability of the instrument
The inaccuracy due to change in temperature
The reliability of the instrument

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DGVCL Exam Paper (11-12-2011)
The main advantage of using fractional pitch winding is to refuce

Amount of copper in the winding
Cost of the machine
Size of the machine
Harmonics in the generated emf

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

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