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WorksheetsElectrical Safety
Total questions: 16
Worksheet time: 8mins
The device shown is a
RCD
Transformer
Proving Unit
Storage Battery
The correct voltage to use on a construction site is
110 Volts
230 Volts
400 Volts
12 Volts
How often should electrical tools be PAT tested when they are used on building sites
every 1 month
every 3 months
every 6 months
every 12 months
A visual inspection should be carried out on electrical tools
at least once every week
at least once every month
at least once every 3 months
every time before it is used
the device identified is a
multi meter
proving unit
voltage indicator
transformer
The device shown is a
voltage indicator
proving unit
multi meter
transformer
The symbol shown means that the appliance
needs an earth connection
does not need an earth connection
is safe to use
operates at 110 Volts
the symbol shown means that the appliance
needs an earth connection
does not need an earth connection
is double insulated
needs to operate at 110 volts
the correct colour coding for the wiring of a plug would be
earth green and yellow / blue line / brown neutral
earth green and yellow / blue neutral / brown line
earth blue / neutral green and yellow / brown line
earth brown / neutral blue / line green and yellow
to convert from 230 Volts to 110 Volts you would need a
step up transformer
step down transformer
a 230 Volt generator
a 110 Volt generator
it is necessary to fully unwind an electrical extension cable
To enable the electricity to flow more easily
to provide a trip hazard
to prevent heat build up and melting of the cable
to make it easier to connect portable tools
The equipment shown is a
temporary continuity bond
earth bond
electrical jump leads
continuity tester
the purpose of earthing on electrical equipment is to
allow the appliance to work properly
to reduce the voltage to an acceptable level
to prevent you getting an electrical shock
increase the efficiency of the appliance
the correct fire extinguisher for an electrical fire would be
Water
Foam
CO2
Dry Powder
the device shown is a
RCD
Extension Plug
Voltage indicator
transformer unit
A safety sign that warns you of an electrical hazard would be coloured
white with red border
yellow with black border
blue and white
green and white
