Switch Gear protection of fuses is generally not used beyond 100 A 50 A 20 A 200 A 100 A 50 A 20 A 200 A ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The transient voltage that appears across the contacts at the instant of arc extinction is called recovery voltage peak voltage supply voltage restriking voltage recovery voltage peak voltage supply voltage restriking voltage ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Which of the following is the least expensive protection for over current is low voltage system ? isolator air break circuit breaker rewireable fuse oil circuit breaker isolator air break circuit breaker rewireable fuse oil circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A fuse in a motor circuit provides protection against overload open circuit, short-circuit and overload None of these short-circuit and overload overload open circuit, short-circuit and overload None of these short-circuit and overload ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The arcing contacts in a circuit breaker are made of copper tungsten alloy porcelain aluminium alloy electrolytic copper copper tungsten alloy porcelain aluminium alloy electrolytic copper ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The fuse wire, in D.C. circuits, is inserted in none of the listed here Both of the listed here negative circuit only positive circuit only none of the listed here Both of the listed here negative circuit only positive circuit only ANSWER DOWNLOAD EXAMIANS APP
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