Switch Gear The pick-up current of a relay is 7.5 A and the fault current in relay is 30 A. Its plug-setting multiplier (P.S.M.) is 8 4 2 6 8 4 2 6 ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A short-circuit is identified by voltage drop no current flow heavy current flow voltage rise voltage drop no current flow heavy current flow voltage rise ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A circuit breaker must perform the duty of being closed on to a fault opening the faulty circuit and breaking the fault current All of these carrying fault current for a short time being closed on to a fault opening the faulty circuit and breaking the fault current All of these carrying fault current for a short time ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A fuse is never inserted in positive of dc circuit neutral wire negative of dc circuit phase line positive of dc circuit neutral wire negative of dc circuit phase line ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The making capacity of a circuit breaker is equal to √3 × symmetrical breaking capacity 2.55 × symmetrical breaking capacity None of these √2 × symmetrical breaking capacity √3 × symmetrical breaking capacity 2.55 × symmetrical breaking capacity None of these √2 × symmetrical breaking capacity ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Directional relay are based on flow of current All of these power voltage wave current All of these power voltage wave ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS