Switch Gear The torque produced in induction type relay is proportional to square of the current inversely proportional to the current inversely proportional to the square of the current proportional to the current proportional to square of the current inversely proportional to the current inversely proportional to the square of the current proportional to the current ANSWER DOWNLOAD EXAMIANS APP
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 foreign matter on the contact surface all of these slow making and breaking of load circuit contacts too low contact pressure foreign matter on the contact surface all of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Back up protection is generally used for protection against short-circuit faults only open-circuit faults only None of these both open and short-circuit faults short-circuit faults only open-circuit faults only None of these both open and short-circuit faults ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The making capacity of a circuit breaker is equal to None of these √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 ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The arc voltage produced in AC circuit breaker is always leading the arc current by 90° lagging the arc current by 90° In phase with the arc current None of these leading the arc current by 90° lagging the arc current by 90° In phase with the arc current None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Most of the relays on service on electric power system are None of these electro-mechanical relays thermal relays electronic relays None of these electro-mechanical relays thermal relays electronic relays ANSWER DOWNLOAD EXAMIANS APP
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