Switch Gear For the protection of power station buildings against direct strokes the requirements are interception, conduction, dissipation and reflection interception, conduction and dissipation interception interception and conduction None of these interception, conduction, dissipation and reflection interception, conduction and dissipation interception interception and conduction None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear If the fault occurs near the impedance relay, the V/ I ratio will be constant for all distances None of these Lower than that of if fault occurs away from the relay higher than that of if fault occurs away from the relay constant for all distances None of these Lower than that of if fault occurs away from the relay higher than that of if fault occurs away from the relay ANSWER DOWNLOAD EXAMIANS APP
Switch Gear To reduce short circuit fault currents......... are used. resistors None of these reactors capacitors resistors None of these reactors capacitors ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The arcing contacts in a circuit breaker are made of copper tungsten alloy electrolytic copper aluminium alloy porcelain copper tungsten alloy electrolytic copper aluminium alloy porcelain ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The relay operating speed depends upon the spring tension All of these the rate of flux built up armature core air gap the spring tension All of these the rate of flux built up armature core air gap ANSWER DOWNLOAD EXAMIANS APP
Switch Gear When a fault occur in a power system, the circuit breaker is opened by remote control is opened manually opens automatically None of these is opened by remote control is opened manually opens automatically None of these ANSWER DOWNLOAD EXAMIANS APP
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