Switch Gear protection of fuses is generally not used beyond 200 A 20 A 50 A 100 A 200 A 20 A 50 A 100 A ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The single phasing relays are used for the protection of single phase motors only three phase motors two single phase motors running in parallel two phase motors only single phase motors only three phase motors two single phase motors running in parallel two phase motors only ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A circuit breaker is rated as 1500 A, 1000 MVA, 33 kv, 3-second , 3- phase oil circuit breaker. The rated normal current is 750 A None of these 1500 A 1500/√3 A 750 A None of these 1500 A 1500/√3 A ANSWER DOWNLOAD EXAMIANS APP
Switch Gear SF 6 gas is lighter than air has pungent small Is nontoxic is yellow in colour is lighter than air has pungent small Is nontoxic is yellow in colour ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Most of the relays on service on electric power system are electro-mechanical relays None of these electronic relays thermal relays electro-mechanical relays None of these electronic relays thermal relays ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The fault that imposes severest duty on the circuit breaker is all three lines short-circuited two lines to ground fault line to line fault line to ground fault all three lines short-circuited two lines to ground fault line to line fault line to ground fault ANSWER DOWNLOAD EXAMIANS APP