Switch Gear Arc in a circuit breaker behaves as a resistance decreasing with voltage rise across the arc an inductive reactance a resistance increasing with voltage rise across the arc a capacitive reactance a resistance decreasing with voltage rise across the arc an inductive reactance a resistance increasing with voltage rise across the arc a capacitive reactance ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Directional relay are based on flow of current All of these voltage wave power current All of these voltage wave power ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The time-current graph of a fuse None of these has a linear characteristic is a circle has inverse characteristic None of these has a linear characteristic is a circle has inverse characteristic ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A short-circuit is identified by voltage drop heavy current flow voltage rise no current flow voltage drop heavy current flow voltage rise no current flow ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A circuit breaker must perform the duty of 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 carrying fault current for a short time ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The arc voltage produced in AC circuit breaker is always leading the arc current by 90° None of these In phase with the arc current lagging the arc current by 90° leading the arc current by 90° None of these In phase with the arc current lagging the arc current by 90° ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS