DGVCL Exam Paper (11-12-2011)

DGVCL Exam Paper (11-12-2011)
A fuse is inserted in

Phase wire

Neutral wire

Both phased and neutral wire

Earth continuity conductor

Phase wire

Neutral wire

Both phased and neutral wire

Earth continuity conductor

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DGVCL Exam Paper (11-12-2011)
In a power plant, a reserve generating capacity which is not in service but is in operation is known as

Cold reserve

Firm power

Hot reserve

Spinning reserve

Cold reserve

Firm power

Hot reserve

Spinning reserve

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

To eliminate corona effect

To improve the power factor

To avoid radio interference

To limit the current to an appropriate value

To eliminate corona effect

To improve the power factor

To avoid radio interference

To limit the current to an appropriate value

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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

217.8 MW

435.6 MW

251.5 MW

500 MW

217.8 MW

435.6 MW

251.5 MW

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DGVCL Exam Paper (11-12-2011)
Distribution transformers have good all day efficiency due to

Low voltage

Low copper as well as iron loss

Low copper loss

Low iron loss

Low voltage

Low copper as well as iron loss

Low copper loss

Low iron loss

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

Split phase motor

Capacitor start motor

Universal motor

Capacitor start capacitor run motor

Split phase motor

Capacitor start motor

Universal motor

Capacitor start capacitor run motor

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