Switch Gear Overheating of relay contacts or contact born out is due to slow making and breaking of load circuit contacts foreign matter on the contact surface too low contact pressure all of these slow making and breaking of load circuit contacts foreign matter on the contact surface too low contact pressure all of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Interruption of large currents by relay requires wide separation of the opened contacts all of these high speed opening of contacts arc suppressing blow out coils wide separation of the opened contacts all of these high speed opening of contacts arc suppressing blow out coils ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A switchgear is device used for interrupting an electrical circuit switching, controlling and protecting the electrical circuit and equipment switching an electrical circuit 111 switching and controlling an electrical circuit interrupting an electrical circuit switching, controlling and protecting the electrical circuit and equipment switching an electrical circuit 111 switching and controlling an electrical circuit ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Back up protection is generally used for protection against open-circuit faults only both open and short-circuit faults None of these short-circuit faults only open-circuit faults only both open and short-circuit faults None of these short-circuit faults only 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 None of these √2 × symmetrical breaking capacity √3 × symmetrical breaking capacity 2.55 × symmetrical breaking capacity None of these √2 × symmetrical breaking capacity ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Admittance relay is non-directional relay impedance relay None of these directional relay non-directional relay impedance relay None of these directional relay ANSWER DOWNLOAD EXAMIANS APP
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