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. What is the earth wire connected to inside the appliance?

The neutral power connection of the appliance.
The live components of the appliance.
The power switch of the appliance.
The metal case or body of the appliance.


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

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


Question 3. How does a fuse protect us?

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


Question 4. How does an RCCB protect us?

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.
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.


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

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


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