- A Mandatory in all fog situations
- ✓ Optional, for dense fog, rain, snow, or narrow winding roads
- C Mandatory at night on motorways
- D For decorative use only
Why this is the correct answer
The front fog light is optional. It may be used in dense fog, heavy rain or snow, or on narrow, winding roads, where it improves close-range illumination.
More questions on Lighting and Optical Signals
- After driving through a stretch of dense fog with the rear fog light on, visibility improves. What should you do?
- What colour are the direction indicators (turn signals)?
- What are direction indicators used for?
- In which of these situations must the hazard warning lights be used?
- What characterises the hazard warning lights compared with normal indicators?
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