Switch Gear For the same power, the least size is of sf6 circuit breaker vaccum circuit breaker air-blast circuit breaker oil circuit breaker sf6 circuit breaker vaccum circuit breaker air-blast circuit breaker oil circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The reflection co-efficient at the open circuited end of a transmission line unity None of these infinity zero unity None of these infinity zero ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The voltage appearing across the contacts after opening of the circuit breaker is called surge voltage operating voltage arc voltage recovery voltage surge voltage operating voltage arc voltage recovery voltage ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The arc voltage produced in AC circuit breaker is always In phase with the arc current leading the arc current by 90° lagging the arc current by 90° None of these In phase with the arc current leading the arc current by 90° lagging the arc current by 90° None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear An overcurrent relay having current settling of 125% is connected to a supply circuit through a current transformer of 400/5 A. The pick-up current is 12.5 A 6.25 A 25 A 3.125 A 12.5 A 6.25 A 25 A 3.125 A ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The advantage of HRC fuse is that it has high speed of operation All of these does not deteriorate with age is quite cheap has high speed of operation All of these does not deteriorate with age is quite cheap ANSWER DOWNLOAD EXAMIANS APP
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