Switch Gear Air blast circuit breakers for 400 kV power system are designed to operate in 0.5 sec 0.1 sec 100 micro-second 50 milli-second 0.5 sec 0.1 sec 100 micro-second 50 milli-second ANSWER DOWNLOAD EXAMIANS APP
Switch Gear To reduce short circuit fault currents......... are used. capacitors reactors None of these resistors capacitors reactors None of these resistors ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Directional relay are based on flow of current power All of these voltage wave current power All of these voltage wave ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The fault that imposes severest duty on the circuit breaker is line to line fault all three lines short-circuited line to ground fault two lines to ground fault line to line fault all three lines short-circuited line to ground fault two lines to ground fault ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A differential relay measures the vector difference between two or more similar electrical quantities two currents two voltages None of these two or more similar electrical quantities two currents two voltages None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The reflection co-efficient at the open circuited end of a transmission line zero infinity unity None of these zero infinity unity None of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS