GETCO Exam Paper (11-06-2017)
In air blast circuit breaker resistance switching is used to

control the CB operating time
damp out the fast transient
change the fault current power factor
reduce the magnitude of fault current

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GETCO Exam Paper (11-06-2017)
In a 3-phase, 4-wire cable the cross sectional area of neutral conductor is

1.5 times the area of phase conductor
double the area of phase conductor
equal to the area of phase conductor
half of the area of phase conductor

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GETCO Exam Paper (11-06-2017)
In a super heater

temprature rises and pressure remains unchanged
pressure rises and temperature remains the same
temperature rises and pressure drops
pressure rises and temperature drops

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