DGVCL Exam Paper (11-12-2011)

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

Corona loss

Radio interference

Voltage drop

Temperature rise

Corona loss

Radio interference

Voltage drop

Temperature rise

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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

435.6 MW

500 MW

251.5 MW

217.8 MW

435.6 MW

500 MW

251.5 MW

217.8 MW

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DGVCL Exam Paper (11-12-2011)
The positive and negative sequence impedance of a transmission line are

Different

Infinite

Equal

Zero

Different

Infinite

Equal

Zero

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DGVCL Exam Paper (11-12-2011)
The circuit breaker generally used in railway traction is

Bulk Oil CB

Vacuum CB

Air break CB

Minimum Oil CB

Bulk Oil CB

Vacuum CB

Air break CB

Minimum Oil CB

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

Split phase motor

Universal motor

Capacitor start motor

Capacitor start capacitor run motor

Split phase motor

Universal motor

Capacitor start motor

Capacitor start capacitor run motor

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

Low iron loss

Low copper as well as iron loss

Low voltage

Low copper loss

Low iron loss

Low copper as well as iron loss

Low voltage

Low copper loss

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