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GETCO Exam Paper (22-07-2015)

GETCO Exam Paper (22-07-2015)
The breaking capacity of a CB is usually expressed interms of

amperes
MW
MVA
volts

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GETCO Exam Paper (22-07-2015)
The fault occurring in transmission actually are mostly

L-G
L-L-L
L-L
L-L-G

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GETCO Exam Paper (22-07-2015)
Two heaters rated at 500 W, 250 V each are conneted in series across a 250 V, 50 Hz mains. The total power drawn from the supply would be _____ watt.

1000
500
250
125

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GETCO Exam Paper (22-07-2015)
For selecting low voltage cable which of the following factors is not important?

short circuit current rating
voltage grade
current carrying capacity
permissible voltage drop

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

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

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GETCO Exam Paper (22-07-2015)
Earth wire on EHV overhead transmission line is provided to protect the line against

switching surge
corona effect
excessive fault voltages
lightning surge

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

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