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GETCO Exam Paper (11-06-2017)

GETCO Exam Paper (11-06-2017)
The injection of VARs is required to

compensate for line losses
increase the voltage at the receiving end
all
get a good voltage profile

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GETCO Exam Paper (11-06-2017)
In a 3-phase supply, floating neutral is undesirable because it may result in _____ across the load

low voltage
none
high voltage
unequal line voltage

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GETCO Exam Paper (11-06-2017)
Effect of temperature rise in overhead lines is to

increase both
increase the sag and decrease the tension
decrease the sag and increase the tension
decrease both

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GETCO Exam Paper (11-06-2017)
If the effect of earth is taken into account, then the capacitance of line to ground

increases
remains unaltered
becomes infinite
decreases

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GETCO Exam Paper (11-06-2017)
On which of the following cycles does a modern steam power plant work?

Carnot cycle
Bell-Coleman cycle
Otto Cycle
Rankine cycle

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GETCO Exam Paper (11-06-2017)
Fiber-optic cables are used in power system applications mainly for

communication between power station and load control centre
communication between power station and substation
SCADA
all

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