Lighting and Optical Signals
What is the function of the number plate light?
Reviewed on 26 Jul 2026
- A To light the road behind
- ✓ To light the rear number plate so it can be read
- C To warn of braking
- D To signal a lane change
Why this is the correct answer
The number plate light is white and illuminates the rear plate so it can be read at night. It comes on automatically together with the position lights.
More questions on Lighting and Optical Signals
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- Why is it important to keep the headlights clean and correctly adjusted?
- In which of these situations is the use of the horn (acoustic signal) justified outside built-up areas?
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