DGVCL Exam Paper (11-12-2011)

DGVCL Exam Paper (11-12-2011)
Permittivity is expressed in terms of

N/m

Farad/m

Weber /m

farad/sq. m.

N/m

Farad/m

Weber /m

farad/sq. m.

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DGVCL Exam Paper (11-12-2011)
Rated making capacity of a ciruit breaker is equal to

Rated symmetrical breaking capacity

1.11 X rated symmetrical breaking capacity

√2 X rated symmetrical breaking capacity

2.55 X rated symmetrical breaking capacity

Rated symmetrical breaking capacity

1.11 X rated symmetrical breaking capacity

√2 X rated symmetrical breaking capacity

2.55 X rated symmetrical breaking capacity

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DGVCL Exam Paper (11-12-2011)
The motor used in celling fans is

Universal motor

Capacitor start motor

Capacitor start capacitor run motor

Split phase motor

Universal motor

Capacitor start motor

Capacitor start capacitor run motor

Split phase motor

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DGVCL Exam Paper (11-12-2011)
If the voltage at the two ends of a line are 132 kV, and its reactance is 40 Ω, the stability limit of the line is

500 MW

435.6 MW

251.5 MW

217.8 MW

500 MW

435.6 MW

251.5 MW

217.8 MW

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DGVCL Exam Paper (11-12-2011)
The purpose of providing a choke in a tube light is

To improve the power factor

To limit the current to an appropriate value

To avoid radio interference

To eliminate corona effect

To improve the power factor

To limit the current to an appropriate value

To avoid radio interference

To eliminate corona effect

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DGVCL Exam Paper (11-12-2011)
The main criterion for the design of a distributor is

Radio interference

Corona loss

Temperature rise

Voltage drop

Radio interference

Corona loss

Temperature rise

Voltage drop

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