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DGVCL Exam Paper (12-06-2016)

DGVCL Exam Paper (12-06-2016)
Admittance relay is _____ relay.

Directional
Impedance
Non-directional
None of these

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DGVCL Exam Paper (12-06-2016)
For a 66 kV line having span of 200 meters between towers the approximate sag will be 2 m. If the span is double the sag will be:

2 m
4 m
8 m
1 m

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DGVCL Exam Paper (12-06-2016)
Which of the following does not change in a transformer?

Current
All of these
Frequency
Voltage

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In transformer voltage and current can be raised or lowered.
Frequency remains same
Power and Flux remains almost constant.

DGVCL Exam Paper (12-06-2016)
In India _____ supply is 415 V supply through 4-wires.

Two-phase
None of these
Single - phase
Three - phase

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DGVCL Exam Paper (12-06-2016)
The Minimum Oil Circuit Breaker (MOCB) is named because of :

Reduced requirement of oil
None of these
Reduced requirement of air
All of these

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DGVCL Exam Paper (12-06-2016)
The time of closing the cycle, in modern circuit breakers is

0.1 sec.
0.003 sec.
0.01 sec.
0.001 sec.

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