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DGVCL Exam Paper (12-06-2016)

DGVCL Exam Paper (12-06-2016)
_____ are used where it is necessary to control a circuit by a low power signal.

None of these
Transformer
Relays
Electric Motor

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DGVCL Exam Paper (12-06-2016)
The permissible voltage variation in transmission and distribution system is:

± 25%
±10%
± 0.1%
± 1%

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This answer is as per official key of respective exam.

DGVCL Exam Paper (12-06-2016)
_____ electric power is the most common method used by electrical grids to transfer power

One-phase
Three-phase
None of these
Two-phase

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DGVCL Exam Paper (12-06-2016)
If 3000 kW power is to be transmitted over a distance of 30 km, the desirable transmission voltage will be

132 kV
66 kV
11 kV
33 kV

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DGVCL Exam Paper (12-06-2016)
The following is a Distribution Company:

DERC
CSERC
GERC
MGVCL

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DGVCL Exam Paper (12-06-2016)
Reactance relay is used for protection against:

Over voltage fault
Earth fault
Phase fault
None of these

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