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DGVCL Exam Paper (12-06-2016)

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

Non-directional
Directional
Impedance
None of these

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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 :

20 kVA
75 kVA
None of these
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)
In a transmission line if booster transformers are to be used, preferred location will be

At the intermediate point
At the sending end
Anywhere in the line
At the receiving end

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

0.01 microF
0.1 Farad
0.01 Farad
1 Farad

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DGVCL Exam Paper (12-06-2016)
The rating of transformer may be expressed in _____

Horse power
kW
kVA
kVAR

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Equipment : Rating
Transformer : kVA
Alternator : kVA
Motor : kW/HP
Battery : ampere-hour

DGVCL Exam Paper (12-06-2016)
A certain transformer has 200 turns in the primary winding, 50 turns in the secondary winding and 120 volts applied to the primary. What is the voltage across the secondary?

30 Volts
120 Volts
480 Volts
60 Volts

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For transformer, V2/V1 = N2/N1
V2/120 = 50/200
V2 = 30 V

MORE MCQ ON DGVCL Exam Paper (12-06-2016)

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