Switch Gear Directional relay are based on flow of voltage wave All of these power current voltage wave All of these power current 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 None of these lubricate the contacts All of these extinguish the arc insulate the contacts from switch body None of these lubricate the contacts All of these extinguish the arc insulate the contacts from switch body ANSWER DOWNLOAD EXAMIANS APP
Switch Gear For the protection of power station buildings against direct strokes the requirements are interception, conduction and dissipation interception, conduction, dissipation and reflection interception and conduction interception None of these interception, conduction and dissipation interception, conduction, dissipation and reflection interception and conduction interception None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear An efficient and a well designed protective relaying should have good selectivity and reliability economy and simplicity All of these high speed and selectivity good selectivity and reliability economy and simplicity All of these high speed and selectivity ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The relay operating speed depends upon All of these the rate of flux built up the spring tension armature core air gap All of these the rate of flux built up the spring tension armature core air gap ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The device that detects the fault in a power system is relay isolator None of these circuit breaker relay isolator None of these circuit breaker ANSWER DOWNLOAD EXAMIANS APP
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