Electrical Safety Key Stage 3 Revision Quiz | Two Thirty Volts

Revision Quiz: Electrical Safety Age: 11-14 Year Olds

Question 1

A switch in an electrical circuit should always be ....?

Connected to the live wire.
Connected to the earth wire.
Connected to the neutral wire.

Question 2

Materials that do not conduct electricity are called...?

Conductors
Modifiers
Insulators

Question 3

The plastic outside of electrical wires protects people by ...?

Insulating them from the heat of the wire.
Insulating them from the electric current in the metal core of the wire.
Insulating them from static electricity.

Question 4

The purpose of a fuse is to...?

To break when there is too little current.
Keep the circuit intact even if there is a problem with the electrical equipment.
Protect the wiring and equipment from overloading & potentially catching fire.

Question 5

The thicker the wire in a fuse...?

The more current needed to melt it and break the circuit.
The less current needed to melt it and break the circuit.
The longer it will last.

Question 6

The purpose of the earth wire is to ...?

Make the metal casings of equipment become live if something goes wrong.
Prevent the metal casings of equipment become live if something goes wrong.
Conduct lightening down to the ground.

Question 7

A circuit breaker is more effective that a fuse because ...?

It is cheaper than a fuse.
It cuts off the current much more quickly and is easier and safer to reset.
It doesn't get as hot.

Question 8

ELCB stands for...?

Electrostatic Circuit Breakers
Earth Load Circle Breaker
Earth Leakage Circuit Breaker

Question 9

Residual Current Devices (RCDs) are often used with outdoor electrical equipment such as strimmers to ...?

Protect people from electric shock.
Protect the equipment from damage.
Protect the garden.

Question 10

A typical example of double insulated equipment in the home includes ...?

An electric cooker.
A hair dryer.
A microwave oven.

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