WorksheetsElectrical Safety
Total questions: 15
Worksheet time: 8mins
It is a good idea to not plug too many things into one outlet, since there is a risk of overloading the circuit at that outlet.
true
false
It is generally okay to use electrical devices around water if you use a good quality extension cord.
true
false
An electrical ground provides a alternative path for current if something goes wrong in a circuit or device.
true
false
turn off the power source
call 999
Select the correct statements about the earth wire in a plug.
It is brown
It is blue
It has green and yellow stripes
It is at 0 V.
It is at 230 V.
Select the correct statements about the neutral wire in a plug.
It is brown
It is blue
It has green and yellow stripes
It is at 0 V.
It is at 230 V.
In a plug, the fuse is connected to the (a) wire.
The fuse used in an electric appliance should be rated __________ than the operating current.
higher
lower
An electrician has a 3 A, a 5 A, and a 10 A fuse. He is replacing a broken fuse in an appliance.
The appliance has a power rating of 1000 W and it is plugged into the mains supply, at 230 V. Determine the fuse that should be used in the appliance.
(a)
Select the correct advantages of circuit breakers over fuses.
Circuit breakers can be reset.
Circuit breakers are cheaper.
Circuit breakers stop the current faster.
