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?

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


Question 2. How does an RCCB protect us?

It compares the live and earth currents and triggers if they're different.
It compares the live and neutral currents and triggers if they're different.
It compares the live and earth currents and triggers if they're the same.
It compares the live and neutral currents and triggers if they're the same.


Question 3. Which wire is coloured brown?

Earth.
Live.
Mains.
Neutral.


Question 4. How does a fuse protect us?

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


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

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


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