Snapquiz - Household Electrical Safety

This is the Snapquiz on Household Electrical Safety. Click here or use the embedded video if you haven't watched the lesson yet.

Question 1. If an appliance draws a 4A current which standard fuse value (for the UK) should be used in its plug?


Question 2. 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 3. Which pin in a UK plug should connect to the fuse?

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

Question 4. What is the normal potential difference of the neutral wire?


Question 5. Which pin in a UK plug should connect to the blue wire?

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

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