Switch Gear
When a fault occur in a power system, the circuit breaker

None of these
is opened by remote control
is opened manually
opens automatically

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Switch Gear
A switchgear is device used for

interrupting an electrical circuit
switching an electrical circuit 111
switching and controlling an electrical circuit
switching, controlling and protecting the electrical circuit and equipment

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Switch Gear
The material used for fuse must have

Low melting point and low specific resistance
low melting point and any specific resistance
low melting point and high specific resistance
high melting point and low specific resistance

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