Switch Gear SF 6 gas is yellow in colour has pungent small is lighter than air Is nontoxic is yellow in colour has pungent small is lighter than air Is nontoxic ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Which of the following is the least expensive protection for over current is low voltage system ? oil circuit breaker air break circuit breaker isolator rewireable fuse oil circuit breaker air break circuit breaker isolator rewireable fuse ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The arc voltage produced in AC circuit breaker is always None of these In phase with the arc current leading the arc current by 90° lagging the arc current by 90° None of these In phase with the arc current leading the arc current by 90° lagging the arc current by 90° ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The arcing contacts in a circuit breaker are made of porcelain electrolytic copper aluminium alloy copper tungsten alloy porcelain electrolytic copper aluminium alloy copper tungsten alloy ANSWER DOWNLOAD EXAMIANS APP
Switch Gear In a circuit breaker the time duration from the instant of the fault to extinction of arc is known as lag time clearing time operation time lead time lag time clearing time operation time lead time ANSWER DOWNLOAD EXAMIANS APP
Switch Gear If the length of the arc in a circuit breaker increases, its resistance increases None of these remains same decreases increases None of these remains same decreases ANSWER DOWNLOAD EXAMIANS APP
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