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GETCO Exam Paper (22-07-2015)

GETCO Exam Paper (22-07-2015)
Babies _____ when they are hungry

cries
are crying
is crying
cry

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GETCO Exam Paper (22-07-2015)
Fast excitation system of the generator will _____

Improve the power factor
Improve the voltage control
Improve the dynamic stability
Improve the reactive power control

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GETCO Exam Paper (22-07-2015)
Light from the nearest star (other than the sun) reaches the earth in

4.2 minutes
4.2 years
4.2 hours
42 secs

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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

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

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GETCO Exam Paper (22-07-2015)
An over-current relay of current rating 5 A and setting 150% is connected to a 200/5 A CT. Then the relay to pickup, the line current required is

150
200
100
300

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GETCO Exam Paper (22-07-2015)
In synchronous motor, V-curve is a graph of

Armature current Vs reactive power
Armature current Vs active power
Armature current Vs Field current
Armature current Vs power factor

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

v curve: armature current → field current
Inverted V curve: power factor → field current

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

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