Switch Gear When a fault occur in a power system, the circuit breaker is opened by remote control None of these opens automatically is opened manually is opened by remote control None of these opens automatically is opened manually ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A fuse is a current limiting device None of these protective device current controlling device current limiting device None of these protective device current controlling device ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Which of the following is the least expensive protection for over current is low voltage system ? isolator oil circuit breaker air break circuit breaker rewireable fuse isolator oil circuit breaker air break circuit breaker rewireable fuse ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A circuit breaker is rated as 1500 A, 1000 MVA, 33 kv, 3-second , 3- phase oil circuit breaker. The rated normal current is None of these 1500 A 1500/√3 A 750 A None of these 1500 A 1500/√3 A 750 A ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The rate of rise of restriking voltage depends on both inductance and capacitance of the system the capacitance of the system only the inductance of the system only the type of circuit breaker both inductance and capacitance of the system the capacitance of the system only the inductance of the system only the type of circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The fault that imposes severest duty on the circuit breaker is line to ground fault line to line fault all three lines short-circuited two lines to ground fault line to ground fault line to line fault all three lines short-circuited two lines to ground fault ANSWER DOWNLOAD EXAMIANS APP
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