DGVCL Exam Paper (12-06-2016)

DGVCL Exam Paper (12-06-2016)
A relay used for protection of motors against overload is :

Impedance relay

Thermal relay

Buchholz's relay

Electromagnetic attraction type

Impedance relay

Thermal relay

Buchholz's relay

Electromagnetic attraction type

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DGVCL Exam Paper (12-06-2016)
GUVNL is:

Gujarat Urja Vikas Nigam Limited

Gujarat Urja Vyapar Nigam Limited

None of these

Gujarat Urja Vikas Nikash Limited

Gujarat Urja Vikas Nigam Limited

Gujarat Urja Vyapar Nigam Limited

None of these

Gujarat Urja Vikas Nikash Limited

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DGVCL Exam Paper (12-06-2016)
Transformer core is laminated to _____

Reduce eddy current losses

Reduce hysteresis loss

Reduce all above losses

Reduce copper losses

Reduce eddy current losses

Reduce hysteresis loss

Reduce all above losses

Reduce copper losses

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

Navsari

Vadodara

Valsad

Tapi

Navsari

Vadodara

Valsad

Tapi

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DGVCL Exam Paper (12-06-2016)
The number of cycles in which a high speed circuit breaker can complete its operation is

10 to 18

20 to 30

40 to 50

3 to 8

10 to 18

20 to 30

40 to 50

3 to 8

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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

66 kV

132 kV

11 kV

33 kV

66 kV

132 kV

11 kV

33 kV

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