Switch Gear Back up protection is generally used for protection against open-circuit faults only both open and short-circuit faults short-circuit faults only None of these open-circuit faults only both open and short-circuit faults short-circuit faults only None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The time-current graph of a fuse has a linear characteristic None of these is a circle has inverse characteristic has a linear characteristic None of these is a circle has inverse characteristic ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Air blast circuit breaker is used for repeated duty over currents short duty intermittent duty repeated duty over currents short duty intermittent duty ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Which of the following circuit breakers is prefered for EHT applications ? Sf6 CB low oil circuit breaker bulk oil circuit breaker air break circuit breaker Sf6 CB low oil circuit breaker bulk oil circuit breaker air break circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear To limit short-circuit current in a power system are used reactors earth wires isolators H.R. fuses reactors earth wires isolators H.R. fuses ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Wave trap is used to trap waves of power frequencies None of these either of the above higher frequencies entering generator or transformer units power frequencies None of these either of the above higher frequencies entering generator or transformer units ANSWER DOWNLOAD EXAMIANS APP
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