Switch Gear Air blast circuit breaker is used for intermittent duty over currents repeated duty short duty intermittent duty over currents repeated duty short duty ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A circuit breaker must perform the duty of 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 opening the faulty circuit and breaking the fault current being closed on to a fault ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Which of the following is used in liquid fuses ? distilled water sulphur hexafluoride carbon tetrachloride transformer oil distilled water sulphur hexafluoride carbon tetrachloride transformer oil ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Which of the following CB's is generally used in railways applications ? low oil circuit breaker bulk oil circuit breaker sf 6 circuit breaker air break circuit breaker low oil circuit breaker bulk oil circuit breaker sf 6 circuit breaker air break circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The rating of a circuit breaker is generally determined on the basis of double line to ground fault current single line to ground fault current symmetrical fault current line to line fault current double line to ground fault current single line to ground fault current symmetrical fault current line to line fault current 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 clearing time lag time lead time operation time clearing time lag time lead time operation time ANSWER DOWNLOAD EXAMIANS APP