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DGVCL Exam Paper (12-06-2016)

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

Full load
Short circuit
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)
Directional relays are based on flow of

All of these
Current
Power
Voltage

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DGVCL Exam Paper (12-06-2016)
The transformer works on the principle of:

All of these
Mutual induction
Mutual capacitance
None of these

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Transformer is static device.
two or more stationary electrical circuit mutually linked by magnetic circuit.
assumptions of ideal transformer:
1. there are no losses.
2. whole magnetic flux constant no leakage.
3. permeability of core is infinite.

DGVCL Exam Paper (12-06-2016)
The registered office of MGVCL is in _____

Valsad
Godhra
Vadodara
Ahmedabad

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Company : Registered Offfice
PGVCL : Rajkot
MGVCL : Vadodara
DGVCL : Surat
UGVCL : Mehsana
GETCO : Vadodara
GUVNL : Vadodara

DGVCL Exam Paper (12-06-2016)
For 11 kV line the capacitance per km per phase will be of the order of:

0.01 Farad
1 Farad
0.01 microF
0.1 Farad

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DGVCL Exam Paper (12-06-2016)
If the displayed system time and date is wrong, you can reset it using :

Desk top
Menu bar
Task bar
Control panel

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