Switch Gear Arc in a circuit breaker behaves as a capacitive reactance a resistance increasing with voltage rise across the arc an inductive reactance a resistance decreasing with voltage rise across the arc a capacitive reactance a resistance increasing with voltage rise across the arc an inductive reactance a resistance decreasing with voltage rise across the arc ANSWER DOWNLOAD EXAMIANS APP
Switch Gear SF6 gas has pungent small is lighter than air is nontoxic is yellow in colour None of these has pungent small is lighter than air is nontoxic is yellow in colour None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A differential relay measures the vector difference between two voltages two or more similar electrical quantities None of these two currents two voltages two or more similar electrical quantities None of these two currents ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Back up protection is generally used for protection against short-circuit faults only both open and short-circuit faults open-circuit faults only None of these short-circuit faults only both open and short-circuit faults open-circuit faults only None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The reflection co-efficient at the open circuited end of a transmission line None of these unity infinity zero None of these unity infinity zero ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The transient voltage that appears across the contacts at the instant of arc extinction is called restriking voltage peak voltage supply voltage recovery voltage restriking voltage peak voltage supply voltage recovery voltage ANSWER DOWNLOAD EXAMIANS APP
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