Switch Gear In a single bus-bar system there will be complete shut down when fault occurs on neutral line fault occurs with respect to earthing two or more faults occur simultaneously fault occurs on the bus itself fault occurs on neutral line fault occurs with respect to earthing two or more faults occur simultaneously fault occurs on the bus itself ANSWER DOWNLOAD EXAMIANS APP
Switch Gear To limit short-circuit current in a power system are used reactors earth wires H.R. fuses isolators reactors earth wires H.R. fuses isolators ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Interruption of large currents by relay requires wide separation of the opened contacts high speed opening of contacts arc suppressing blow out coils all of these wide separation of the opened contacts high speed opening of contacts arc suppressing blow out coils all of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear SF6 gas None of these has pungent small is yellow in colour is nontoxic is lighter than air None of these has pungent small is yellow in colour is nontoxic is lighter than air ANSWER DOWNLOAD EXAMIANS APP
Switch Gear For interrupting of high voltage and low current, the circuit breaker prefered is air-blast circuit breaker vaccum circuit breaker all are correct oil circuit breaker air-blast circuit breaker vaccum circuit breaker all are correct oil circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Most of the relays on service on electric power system are electronic relays thermal relays electro-mechanical relays None of these electronic relays thermal relays electro-mechanical relays None of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS