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GETCO Exam Paper (22-07-2015)

GETCO Exam Paper (22-07-2015)
Which power plant may take several days to start up and shunt down?

Peak load
Base load
solar power plant
none of these

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GETCO Exam Paper (22-07-2015)
Critical clearing time of a fault in a power system is related to

Short circuit limit
Steady state limit
Reactive power limit
Transient stability limit

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GETCO Exam Paper (22-07-2015)
A transformer has negative voltage regulation when its load PF is

unity
leading
zero
lagging

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Voltage regulation = ((no load voltage)-(full load voltage)/(no load voltage))
VR at leading PF = ((I*R*cosφ)-(I*X*sinφ))/V
VR at lagging PF = ((I*R*cosφ)+(I*X*sinφ))/V

GETCO Exam Paper (22-07-2015)
No load efficiency of tranformer is _____ than full load efficiency

same
depends on load
lesser
greater

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GETCO Exam Paper (22-07-2015)
Select the wrong statement from the following in relation to power flow analysis

Approximation is used in FDLF method
jacobian is always required
Y Bus is required for power flow analysis
No of ittretion in N R method can not be more than 30 for any system

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GETCO Exam Paper (22-07-2015)
"Overshoot" in a time response of control systems is indication of

final value of the output
measure of relative stability
steady state solution
none of this

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MORE MCQ ON GETCO Exam Paper (22-07-2015)

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