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 operating time of a fuse is about 0.8 sec 0.002 sec 1.5 sec 1 sec 0.8 sec 0.002 sec 1.5 sec 1 sec ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Overheating of relay contacts or contact born out is due to all of these slow making and breaking of load circuit contacts too low contact pressure foreign matter on the contact surface all of these slow making and breaking of load circuit contacts too low contact pressure foreign matter on the contact surface ANSWER DOWNLOAD EXAMIANS APP
Switch Gear For interrupting of high voltage and low current, the circuit breaker prefered is oil circuit breaker air-blast circuit breaker all are correct vaccum circuit breaker oil circuit breaker air-blast circuit breaker all are correct vaccum circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear For which of the following protection from negative sequence currents is provided ? Transformers Motors Generators Transmission line Transformers Motors Generators Transmission line ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Minimum arcing voltage will be least in case of tungsten silver graphite carbon tungsten silver graphite carbon ANSWER DOWNLOAD EXAMIANS APP
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