Switch Gear An efficient and a well designed protective relaying should have good selectivity and reliability economy and simplicity high speed and selectivity All of these good selectivity and reliability economy and simplicity high speed and selectivity All of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The contacts of high voltage switches used in power system are submerged in oil. The main purpose of the oil is to insulate the contacts from switch body extinguish the arc All of these None of these lubricate the contacts insulate the contacts from switch body extinguish the arc All of these None of these lubricate the contacts ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A fuse in a motor circuit provides protection against overload None of these short-circuit and overload open circuit, short-circuit and overload overload None of these short-circuit and overload open circuit, short-circuit and overload ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The relay operating speed depends upon All of these armature core air gap the rate of flux built up the spring tension All of these armature core air gap the rate of flux built up the spring tension 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° None of these lagging the arc current by 90° In phase with the arc current leading the arc current by 90° None of these lagging the arc current by 90° 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
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