WorksheetsElectrical Wiring (Integrated Science)
Total questions: 10
Worksheet time: 5mins
Which of the following fuses is BEST suited for a 5 amp string of Christmas lights?
2 A fuse
5 A fuse
6 A fuse
10 A fuse
What is the correct colour code for the LIVE wire?
purple
brown
blue
yellow-green
What is the correct colour code for the NEUTRAL wire?
brown
blue
yellow-green
white
What is the correct colour code for the EARTH wire?
brown
blue
yellow-green
orange
Which wire should the FUSE be connected to, in the plug of a 3-flex cord for an appliance?
live wire
neutral wire
earth wire
it should not be connected to any wire
Which two wires carry the current through an appliance under NORMAL operation?
live and earth wires
earth and neutral wires
live and neutral wires
Which wire will take excess current safely to the ground, in the event that there is a short circuit in an appliance, and it becomes electrified?
live wire
neutral wire
earth wire
Which of the following appliances is MOST LIKELY to have a 3-pin plug (as opposed to a 2-pin plug)?
a cell-phone charger
a small desk-fan
a string of Christmas tree lights
a washing machine
Overhead electrical cables are always made out of thick wires because thick wires
have a high resistance
have a low resistance
are easier to install
are cheaper
Which wire is always connected to the inner casing of an electrical appliance?
live wire
earth wire
neutral wire
all three wires
