Switch Gear The arcing contacts in a circuit breaker are made of aluminium alloy electrolytic copper copper tungsten alloy porcelain aluminium alloy electrolytic copper copper tungsten alloy porcelain ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The material used for fuse must have high melting point and low specific resistance low melting point and high specific resistance low melting point and any specific resistance Low melting point and low specific resistance high melting point and low specific resistance low melting point and high specific resistance low melting point and any specific resistance Low melting point and low specific resistance ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The relay operating coil is supplied through None of these current transformer power transformer fuse None of these current transformer power transformer fuse ANSWER DOWNLOAD EXAMIANS APP
Switch Gear For the same power, the least size is of vaccum circuit breaker sf6 circuit breaker oil circuit breaker air-blast circuit breaker vaccum circuit breaker sf6 circuit breaker oil circuit breaker air-blast circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The rate of rise of restriking voltage depends on the inductance of the system only both inductance and capacitance of the system the type of circuit breaker the capacitance of the system only the inductance of the system only both inductance and capacitance of the system the type of circuit breaker the capacitance of the system only ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Circuit breakers usually operate under after dc component has ceased transient state of short circuit current sub-transient state of short circuit current steady state of short circuit current after dc component has ceased transient state of short circuit current sub-transient state of short circuit current steady state of short circuit current ANSWER DOWNLOAD EXAMIANS APP
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