Switch Gear Which of the following circuit breakers is prefered for EHT applications ? Sf6 CB bulk oil circuit breaker low oil circuit breaker air break circuit breaker Sf6 CB bulk oil circuit breaker low oil circuit breaker air break circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear When a fault occur in a power system, the circuit breaker is opened manually opens automatically is opened by remote control None of these is opened manually opens automatically is opened by remote control None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The voltage appearing across the contacts after opening of the circuit breaker is called operating voltage recovery voltage surge voltage arc voltage operating voltage recovery voltage surge voltage arc voltage ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The operating time of a circuit breaker is 0.05 sec 0.002 sec 0.001 sec 0.2 sec 0.05 sec 0.002 sec 0.001 sec 0.2 sec ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The time-current graph of a fuse None of these is a circle has a linear characteristic has inverse characteristic None of these is a circle has a linear characteristic has inverse characteristic ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A circuit breaker must perform the duty of opening the faulty circuit and breaking the fault current being closed on to a fault carrying fault current for a short time All of these opening the faulty circuit and breaking the fault current being closed on to a fault carrying fault current for a short time All of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS