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 A circuit breaker must perform the duty of opening the faulty circuit and breaking the fault current All of these being closed on to a fault carrying fault current for a short time opening the faulty circuit and breaking the fault current All of these being closed on to a fault carrying fault current for a short time ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Air blast circuit breaker is used for intermittent duty over currents repeated duty short duty intermittent duty over currents repeated duty short duty ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Back up protection is generally used for protection against both open and short-circuit faults short-circuit faults only None of these open-circuit faults only both open and short-circuit faults short-circuit faults only None of these open-circuit faults only ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The arcing contacts in a circuit breaker are made of aluminium alloy porcelain copper tungsten alloy electrolytic copper aluminium alloy porcelain copper tungsten alloy electrolytic copper ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A.C. network analyzer is used to solve problems of Load flow, short-circuit and stability Load flow Load flow and short-circuit Load flow and stability Load flow, short-circuit and stability Load flow Load flow and short-circuit Load flow and stability ANSWER DOWNLOAD EXAMIANS APP
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