Snapquiz - Household Electrical Safety

Question 1. Which pin in a UK plug should connect to the blue wire?

Top centre.
Bottom left.
Any - it doesn't matter.
Bottom right.

Question 2. How does a fuse protect us?

It detects when a large current flows, switching off the power.
It melts when a large current flows, breaking the circuit.
It predicts large currents, then disables the device.
It limits large currents, only allowing a set amount of current to flow.

Question 3. Why might an appliance not need to use the earth wire?

It would cost more to use an earth connection.
It uses an AC supply.
It's double-insulated (non-conductive body) and low power.
It only needs a 3A fuse.

Question 4. If an appliance draws a 4A current which standard fuse value (for the UK) should be used in its plug?

3A.
4A.
5A.
13A.

Question 5. Which is not a standard mains wire colour in the U.K?

Black.
Blue.
Brown.
Striped green and yellow.

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