Switch Gear For interrupting of high voltage and low current, the circuit breaker prefered is vaccum circuit breaker all are correct air-blast circuit breaker oil circuit breaker vaccum circuit breaker all are correct air-blast circuit breaker oil circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The arcing contacts in a circuit breaker are made of copper tungsten alloy aluminium alloy porcelain electrolytic copper copper tungsten alloy aluminium alloy porcelain electrolytic copper ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The relay operating coil is supplied through current transformer None of these power transformer fuse current transformer None of these power transformer fuse ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A short-circuit is identified by voltage drop heavy current flow voltage rise no current flow voltage drop heavy current flow voltage rise no current flow ANSWER DOWNLOAD EXAMIANS APP
Switch Gear If the fault occurs near the impedance relay, the V/ I ratio will be higher than that of if fault occurs away from the relay None of these constant for all distances Lower than that of if fault occurs away from the relay higher than that of if fault occurs away from the relay None of these constant for all distances Lower than that of if fault occurs away from the relay ANSWER DOWNLOAD EXAMIANS APP
Switch Gear An overcurrent relay having current settling of 125% is connected to a supply circuit through a current transformer of 400/5 A. The pick-up current is 12.5 A 3.125 A 6.25 A 25 A 12.5 A 3.125 A 6.25 A 25 A ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS