GETCO Exam Paper (11-06-2017)
The lead sheath of the cable may get damaged due to

mechanically injury
chemical action with impurities present in the soil when buried in earth
any one
crystallisation of lead through vibrations

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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

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