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DGVCL Exam Paper (12-06-2016)

DGVCL Exam Paper (12-06-2016)
SF₆ gas:

Is lighter than air
Is nontoxic
Has pungent smell
Is yellow in colour

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

34.64 kVA
None of these
20 kVA
75 kVA

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For three phase,
VA = √3 V I

For single phase, kVA = V I

DGVCL Exam Paper (12-06-2016)
In case the height of transmission tower is increased, which of the following parameter is likely to change?

Capacitance
Inductance
None of these
Resistance

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DGVCL Exam Paper (12-06-2016)
In a transformer the energy is conveyed from primary to secondary

By the flux
Through cooling coil
None of these
Through air

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function of transfomer is that transfer electrical energy from primary cicuit to secondary through magnetic cicuit by mutual induction

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

Short circuit
No load
Full load
None of these

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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 following is not a Regulatory Commission:

GERC
DGVCL
BERC
CSERC

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DGVCL is distribution company.

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