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. How does a fuse protect us?

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


Question 2. How does an RCCB protect us?

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


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

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


Question 4. Which pin in a UK plug should connect to the blue wire?

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


Question 5. Which wire is coloured brown?

Neutral.
Mains.
Earth.
Live.


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