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GETCO Exam Paper (22-07-2015)

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?

180
60
90
120

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GETCO Exam Paper (22-07-2015)
When the load is suddenly increased in the receiving end of the system, the phase shift will

remains same
increase
Not affected
decrease

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GETCO Exam Paper (22-07-2015)
For formation of the Y bus matrix (using node voltage analysis) in power system network modelling _____ is used

Faraday's law
all are correct
KCL
KVL

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GETCO Exam Paper (22-07-2015)
In a thermal power plant, heat from the flue gases is recovered in

condenser
Electric precipitator
chimney
Economizer

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GETCO Exam Paper (22-07-2015)
Calculate torque developed by the 3-phase, 5 HP, 4 pole induction motor runs at 1500 rpm

22 N-m
0 N-m
10 N-m
23.5 N-m

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

P = 2πTN/60 where N is speed in rpm

GETCO Exam Paper (22-07-2015)
What is the surge impedance loading of 400 kV line with surge impedance given as 160 Ω

400 MW
1000 kW
250 MW
1000 MW

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

SIL = (kV)²/Z₀

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

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