electrical safety

Arc interruption is done by

• a) High resistance interruption

• b) Low resistance interruption

• c) Both (a) and (b)

• d) None of these

Resistance in wire depends on how thick it is, how long it is and what it is made of.

• true
• false

Your body is a conductor of electricity.

• true
• false

The neutral wire carries the current...

• towards the appliance

• out of the appliance

The __________ wire only carries a current when there is a fault.

In a plug, the fuse is connected to the __________ wire.

When the current through a fuse gets too high, the wire inside the fuse will...

• create a spark

• melt

• sound an alarm

• do nothing

The fuse used in an electric appliance should be rated __________ than the operating current.

• higher

• lower

Select the correct advantages of circuit breakers over fuses.

• Circuit breakers can be reset.

• Circuit breakers are cheaper.

• Circuit breakers stop the current faster.

A connection that allows current to take the path of least resistance is a

• short circuit

• long circuit

• parallel circuit

• series circuit