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

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

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

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

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

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

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