SWITCH GEAR QUIZ

loose connection

impulse voltage

insulation failure

mechanical vibration

sf 6 circuit breaker

air-blast circuit breaker

vaccum circuit breaker

oil circuit breaker

Motors

Transmission line

Generators

Transformers

improve line voltage

compensate for line inductive reactance

compensate for line capacitive reactance

None of these

being closed on to a fault

carrying fault current for a short time

opening the faulty circuit and breaking the fault current

All of these

fault occurs with respect to earthing

fault occurs on neutral line

two or more faults occur simultaneously

fault occurs on the bus itself

impedance relays

reactance relays

none of these

split-phase relays

0.1 sec

0.5 sec

50 milli-second

100 micro-second

electrolytic copper

porcelain

aluminium alloy

copper tungsten alloy

switching and controlling an electrical circuit

interrupting an electrical circuit

switching an electrical circuit 111

switching, controlling and protecting the electrical circuit and equipment