Switch Gear Overheating of relay contacts or contact born out is due to slow making and breaking of load circuit contacts too low contact pressure all of these foreign matter on the contact surface slow making and breaking of load circuit contacts too low contact pressure all of these foreign matter on the contact surface ANSWER DOWNLOAD EXAMIANS APP
Switch Gear When transmission line is energized, the wave that propagates on it is both current wave and voltage wave power factor wave only voltage wave only current wave only both current wave and voltage wave power factor wave only voltage wave only current wave only ANSWER DOWNLOAD EXAMIANS APP
Switch Gear If the length of the arc in a circuit breaker increases, its resistance remains same decreases None of these increases remains same decreases None of these increases ANSWER DOWNLOAD EXAMIANS APP
Switch Gear In a single bus-bar system there will be complete shut down when fault occurs with respect to earthing fault occurs on the bus itself two or more faults occur simultaneously fault occurs on neutral line fault occurs with respect to earthing fault occurs on the bus itself two or more faults occur simultaneously fault occurs on neutral line ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The making capacity of a circuit breaker is equal to √3 × symmetrical breaking capacity 2.55 × symmetrical breaking capacity √2 × symmetrical breaking capacity None of these √3 × symmetrical breaking capacity 2.55 × symmetrical breaking capacity √2 × symmetrical breaking capacity None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The short circuit in any winding of the transformer is the result of impulse voltage insulation failure loose connection mechanical vibration impulse voltage insulation failure loose connection mechanical vibration ANSWER DOWNLOAD EXAMIANS APP
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