Switch Gear Which of the following is the least expensive protection for over current is low voltage system ? rewireable fuse oil circuit breaker isolator air break circuit breaker rewireable fuse oil circuit breaker isolator air break circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The making capacity of a circuit breaker is equal to 2.55 × symmetrical breaking capacity √3 × symmetrical breaking capacity None of these √2 × symmetrical breaking capacity 2.55 × symmetrical breaking capacity √3 × symmetrical breaking capacity None of these √2 × symmetrical breaking capacity ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Arc in a circuit breaker behaves as a capacitive reactance a resistance increasing with voltage rise across the arc a resistance decreasing with voltage rise across the arc an inductive reactance a capacitive reactance a resistance increasing with voltage rise across the arc a resistance decreasing with voltage rise across the arc an inductive reactance ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The torque produced in induction type relay is inversely proportional to the square of the current inversely proportional to the current proportional to the current proportional to square of the current inversely proportional to the square of the current inversely proportional to the current proportional to the current proportional to square of the current ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Insulation resistance of high voltage circuit breakers is more than 1 mega ohms 500 mega ohms 100 mega ohms 10 mega ohms 1 mega ohms 500 mega ohms 100 mega ohms 10 mega ohms ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A fuse should have low melting point low cost All of these high conductivity low melting point low cost All of these high conductivity ANSWER DOWNLOAD EXAMIANS APP
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