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

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


Question 2. Which pin in a UK plug should connect to the blue wire?

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


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

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


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

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


Question 5. What is the normal potential difference of the neutral wire?

50Hz.
110V.
0V.
230V.


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