Switch Gear Which of the following circuit breakers is prefered for EHT applications ? air break circuit breaker low oil circuit breaker Sf6 CB bulk oil circuit breaker air break circuit breaker low oil circuit breaker Sf6 CB bulk oil circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Arc in a circuit breaker behaves as a resistance increasing with voltage rise across the arc a resistance decreasing with voltage rise across the arc a capacitive reactance an inductive reactance a resistance increasing with voltage rise across the arc a resistance decreasing with voltage rise across the arc a capacitive reactance an inductive reactance ANSWER DOWNLOAD EXAMIANS APP
Switch Gear For the protection of power station buildings against direct strokes the requirements are interception interception and conduction None of these interception, conduction and dissipation interception, conduction, dissipation and reflection interception interception and conduction None of these interception, conduction and dissipation interception, conduction, dissipation and reflection ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The main function of a fuse is to open the circuit protect the line protect the appliance None of these prevent excessive currents open the circuit protect the line protect the appliance None of these prevent excessive currents ANSWER DOWNLOAD EXAMIANS APP
Switch Gear SF6 gas None of these is yellow in colour is lighter than air is nontoxic has pungent small None of these is yellow in colour is lighter than air is nontoxic has pungent small ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Minimum arcing voltage will be least in case of graphite tungsten carbon silver graphite tungsten carbon silver ANSWER DOWNLOAD EXAMIANS APP
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