DGVCL Exam Paper (11-12-2011)
The purpose of providing a choke in a tube light is

To improve the power factor
To avoid radio interference
To limit the current to an appropriate value
To eliminate corona effect

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

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

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

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

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