DGVCL Exam Paper (11-12-2011)
Which lightning stroke is most dangerous?

Indirect stroke on conductor
Direct stroke on line conductor
Direct stroke on ground wire
Direct stoke on tower top

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

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

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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 reliability of the instrument
The inaccuracy due to change in temperature

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DGVCL Exam Paper (11-12-2011)
The corona effect can be minimized by increasing

Both spacing between the conductors and diameter of the conductor
Spacing between the conductors
The length of the conductor
Diameter of the conductor

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