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 The pick-up current of a relay is 7.5 A and the fault current in relay is 30 A. Its plug-setting multiplier (P.S.M.) is 2 4 8 6 2 4 8 6 ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The fuse wire, in DC circuit, is inserted in positive circuit only Both positive and negative circuit None of these negative circuit only positive circuit only Both positive and negative circuit None of these negative circuit only ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Which of the following is used in liquid fuses ? transformer oil sulphur hexafluoride distilled water carbon tetrachloride transformer oil sulphur hexafluoride distilled water carbon tetrachloride ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Which of the following CB's is generally used in railways applications ? sf 6 circuit breaker bulk oil circuit breaker air break circuit breaker low oil circuit breaker sf 6 circuit breaker bulk oil circuit breaker air break circuit breaker low oil circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A fuse element is generally made of iron brass steel silver iron brass steel silver ANSWER DOWNLOAD EXAMIANS APP
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