Switch Gear Which of the following is the least expensive protection for over current is low voltage system ? oil circuit breaker rewireable fuse isolator air break circuit breaker oil circuit breaker rewireable fuse isolator air break circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Interruption of large currents by relay requires all of these high speed opening of contacts wide separation of the opened contacts arc suppressing blow out coils all of these high speed opening of contacts wide separation of the opened contacts arc suppressing blow out coils ANSWER DOWNLOAD EXAMIANS APP
Switch Gear In a circuit breaker the time duration from the instant of the fault to extinction of arc is known as operation time lag time lead time clearing time operation time lag time lead time clearing time ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The fusing factor is None of these always 1 always less than 1 always more than 1 None of these always 1 always less than 1 always more than 1 ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The reflection co-efficient at the open circuited end of a transmission line infinity zero None of these unity infinity zero None of these unity ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Current chopping mainly occurs in vaccum circuit breaker oil circuit breaker sf 6 circuit breaker air-blast circuit breaker vaccum circuit breaker oil circuit breaker sf 6 circuit breaker air-blast circuit breaker ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS