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GETCO Exam Paper (22-07-2015)

GETCO Exam Paper (22-07-2015)
Who is the 2012 London Olympics bronze medalist in badminton?

Sania
Ashwini Ponnappa
Saina
Jwala Gutta

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GETCO Exam Paper (22-07-2015)
In differential protection scheme, a stabilizing resistance connected to

reduce the effect of non identical CTs
increase the relay sensitivity
block harmonics
increase the current limit

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GETCO Exam Paper (22-07-2015)
In case of a balanced three phase sinusoidal AC supply, because of the phase difference

rotating magnetic field is produced
neutral current is high if load is not balanced
neutral wire is not required, if load is balanced
all are correct

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GETCO Exam Paper (22-07-2015)
In sub stations for making and breaking of load current

circuit breakers are used
load interrupter switches are used
isolators are used
relays are used

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GETCO Exam Paper (22-07-2015)
The surge impedance loading of the line will _____ if the length of the line is double

become half
remains same
double
four times

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Surge impedance is independent of length of the line

GETCO Exam Paper (22-07-2015)
The magnitude of sum of two sinusoidal AC voltages is equal to the magnitude of each individual voltage, What must be the phase difference between voltages?

120
180
60
90

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