Switch Gear Which of the following is the least expensive protection for over current is low voltage system ? rewireable fuse oil circuit breaker isolator air break circuit breaker rewireable fuse oil circuit breaker isolator air break circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The rating of a circuit breaker is generally determined on the basis of line to line fault current double line to ground fault current symmetrical fault current single line to ground fault current line to line fault current double line to ground fault current symmetrical fault current single line to ground fault current ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A fuse should have All of these low cost low melting point high conductivity All of these low cost low melting point high conductivity ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The time-current graph of a fuse None of these has a linear characteristic has inverse characteristic is a circle None of these has a linear characteristic has inverse characteristic is a circle ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Overheating of relay contacts or contact born out is due to slow making and breaking of load circuit contacts foreign matter on the contact surface all of these too low contact pressure slow making and breaking of load circuit contacts foreign matter on the contact surface all of these too low contact pressure ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The reflection co-efficient at the open circuited end of a transmission line None of these zero unity infinity None of these zero unity infinity ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS