Switch Gear A short-circuit is identified by voltage drop voltage rise heavy current flow no current flow voltage drop voltage rise heavy current flow no current flow ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Which of the following CB's is generally used in railways applications ? sf 6 circuit breaker low oil circuit breaker bulk oil circuit breaker air break circuit breaker sf 6 circuit breaker low oil circuit breaker bulk oil circuit breaker air break circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The relay operating speed depends upon the spring tension armature core air gap the rate of flux built up All of these the spring tension armature core air gap the rate of flux built up All of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear For interrupting of high voltage and low current, the circuit breaker prefered is air-blast circuit breaker vaccum circuit breaker all are correct oil circuit breaker air-blast circuit breaker vaccum circuit breaker all are correct oil circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The arc voltage produced in AC circuit breaker is always lagging the arc current by 90° None of these leading the arc current by 90° In phase with the arc current lagging the arc current by 90° None of these leading the arc current by 90° In phase with the arc current ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The arcing contacts in a circuit breaker are made of porcelain aluminium alloy copper tungsten alloy electrolytic copper porcelain aluminium alloy copper tungsten alloy electrolytic copper ANSWER DOWNLOAD EXAMIANS APP
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