DGVCL Exam Paper (11-12-2011)
A fuse wire should have

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

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DGVCL Exam Paper (11-12-2011)
Distribution transformers have good all day efficiency due to

Low iron loss
Low voltage
Low copper loss
Low copper as well as iron loss

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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
Cost of the machine
Harmonics in the generated emf

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