Switch Gear The operating time of a circuit breaker is 0.2 sec 0.002 sec 0.05 sec 0.001 sec 0.2 sec 0.002 sec 0.05 sec 0.001 sec 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 3.125 A 25 A 12.5 A 6.25 A 3.125 A 25 A 12.5 A 6.25 A ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A fuse is never inserted in phase line negative of dc circuit positive of dc circuit neutral wire phase line negative of dc circuit positive of dc circuit neutral wire ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A circuit breaker must perform the duty of carrying fault current for a short time All of these being closed on to a fault opening the faulty circuit and breaking the fault current carrying fault current for a short time All of these being closed on to a fault opening the faulty circuit and breaking the fault current ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Which of the following is the least expensive protection for over current is low voltage system ? isolator oil circuit breaker rewireable fuse air break circuit breaker isolator oil circuit breaker rewireable fuse air break circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A circuit breaker is a current controlling device current limiting device None of these circuit interrupting device current controlling device current limiting device None of these circuit interrupting device ANSWER DOWNLOAD EXAMIANS APP
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