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DGVCL Exam Paper (11-12-2011)

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

Firm power
Cold reserve
Spinning reserve
Hot reserve

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DGVCL Exam Paper (11-12-2011)
At time t= 0+ , with zero initial condition, which of the following acts as a short circuit?

Conductor
Voltage source
Resistor
Capacitor

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DGVCL Exam Paper (11-12-2011)
Fot fast load flow calculations, the best method is

Gauss-Siedal
De-coupled method
Newton-Raphson
Approximate method

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DGVCL Exam Paper (11-12-2011)
The best location of the power factor correction equipment to be installed in the transmission line is at

The receiving end
Any place
The sending end
Middle of the line

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

2.55 X rated symmetrical breaking capacity
√2 X rated symmetrical breaking capacity
Rated symmetrical breaking capacity
1.11 X rated symmetrical breaking capacity

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DGVCL Exam Paper (11-12-2011)
A 3 phase, 6 pole induction motor operates on 440 V, 50 Hz, supply. If the actual speed of the motor is 960 rpm the slip will be

6 %
4 %
5 %
0.4 %

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Ns = 120f/P
Slip=(Ns-Nr)/Ns
Ns = 1000 and Nr = 960
from equation of slip, S = (1000-960)/1000
S = 0.04 or 4%

MORE MCQ ON DGVCL Exam Paper (11-12-2011)

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