Lighting and Optical Signals
What feature distinguishes reflectors (catadioptrics) from position lights?
Reviewed on 22 Jul 2026
- A They emit a more intense light
- ✓ They emit no light of their own, they reflect light from other sources
- C They change colour with speed
- D They only work in daylight
Why this is the correct answer
Reflectors are non-illuminated devices: they do not emit their own light but reflect light received from other sources, such as the headlights of other vehicles.
More questions on Lighting and Optical Signals
- When is the dipped beam (low beam) used?
- Where is the use of main beam (high beam) permitted?
- You are driving at night on an unlit road with main beam on and a vehicle approaches from the opposite direction. What should you do?
- If a vehicle travelling ahead of you in the same direction is close, may you use the main beam?
- When is the use of the rear fog light mandatory?
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