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GETCO Exam Paper (22-07-2015)

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

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

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)
The surge impedance loading of the line will _____ if the length of the line is double

double
four times
remains same
become half

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Surge impedance is independent of length of the line

GETCO Exam Paper (22-07-2015)
Shunt capacitors in a substation

delivers lagging VAR
consumes lagging VAR
deliver active power
consume active power

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GETCO Exam Paper (22-07-2015)
Who is the vice president of India? (As on 22/07/2015)

Dr. Hamid Ansari
O.P. Kohli
Nazama heptulla
Pranav Mukharjee

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GETCO Exam Paper (22-07-2015)
Which of the following is the most likely reason for large overshoot in a control system?

high retarding torque
presence of dead time delay
High gain in a system
high positive correcting torque

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GETCO Exam Paper (22-07-2015)
Power Factor correcting element is generally connected in _____

parallel to source
series with source
parallel to the load
series with load

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

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