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DGVCL Exam Paper (12-06-2016)

DGVCL Exam Paper (12-06-2016)
The load of a consumer is generally measured in terms of :

Amperes
Volts
kW
Ampere hour

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DGVCL Exam Paper (12-06-2016)
Which of the following is the least expensive protection for over current in low voltage system?

Oil Circuit breaker
Rewireable fuse
Air break circuit breaker
Isolator

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DGVCL Exam Paper (12-06-2016)
DGVCL is not distributing electricity in _____ district.

Vadodara
Tapi
Valsad
Navsari

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DGVCL Exam Paper (12-06-2016)
Isolator in substation is open under _____ condition.

Short circuit
Full load
None of these
No load

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Isolators do not have capacity to make or breake circuit when current flowing in circuit

DGVCL Exam Paper (12-06-2016)
The kVA rating of Three-phase transformer with Voltage = 200 V and Current = 100 A will be :

None of these
20 kVA
75 kVA
34.64 kVA

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For three phase,
VA = √3 V I

For single phase, kVA = V I

DGVCL Exam Paper (12-06-2016)
About how many times longer would a 10 watt light bulb be able to burn compared to a 100 watt bulb with the same energy?

Same time
100 times longer
10 times longer
None of these

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