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GETCO Exam Paper (22-07-2015)

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

1000 MW
250 MW
1000 kW
400 MW

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

SIL = (kV)²/Z₀

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

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

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GETCO Exam Paper (22-07-2015)
For eliminating 7th harmonics from generated EMF in alternator the fractional pitch must be

7\8
5\6
6\7
2\3

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

fractional pitch = Cos( α/2)
α is obtain from: (nα/2)=90˚ where n is harmonic
α=25.7143˚
fractional pitch=6/7

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

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

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

P = 2πTN/60 where N is speed in rpm

GETCO Exam Paper (22-07-2015)
The instantaneous value of power in purely inductive circuit is

constant
zero
changing
none of this

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

The instantaneous value of power in purely inductive circuit is changing as it is given as v*i. The average power of purely inductive circuit over a cycle is zero

GETCO Exam Paper (22-07-2015)
Who is the Energy and Petrochemicals minister of Gujarat? (As on 22/07/2015)

Bhupendrasinh Chudasama
Saurabh Patel
Anandiben Patel
Nitin Patel

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

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