DGVCL Exam Paper (11-12-2011)

DGVCL Exam Paper (11-12-2011)
Transposition of transmission line is done to

Reduce skin effect

Balance line voltage drop

Reduce line loss

Reduce corona

Reduce skin effect

Balance line voltage drop

Reduce line loss

Reduce corona

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DGVCL Exam Paper (11-12-2011)
Permittivity is expressed in terms of

farad/sq. m.

N/m

Weber /m

Farad/m

farad/sq. m.

N/m

Weber /m

Farad/m

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

Low copper as well as iron loss

Low voltage

Low copper loss

Low iron loss

Low copper as well as iron loss

Low voltage

Low copper loss

Low iron loss

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DGVCL Exam Paper (11-12-2011)
Reactance relay is used to protect against

Both phase and earth faults

Earth faults only

Over voltage faults

Phase faults only

Both phase and earth faults

Earth faults only

Over voltage faults

Phase faults only

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DGVCL Exam Paper (11-12-2011)
First zone distance relay protects the transmission line section upto

Its full length

25 % of its full length

50 % of its full length

80 % of its full length

Its full length

25 % of its full length

50 % of its full length

80 % of its full length

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DGVCL Exam Paper (11-12-2011)
What happens to the contents of RAM (Random Access Memory) when the power of the computer is turned off?

Content remains intact

Content gets corrupted

Content is transferred to other memory

Content is lost

Content remains intact

Content gets corrupted

Content is transferred to other memory

Content is lost

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