You're driving in fog. Why should you keep well back from the vehicle in front?
- A In case it changes direction suddenly
- B In case its fog lights dazzle you
- C In case it stops suddenly
- D In case its brake lights dazzle you
Why this is the answer
If you’re following another road user in fog, stay well back. The driver in front will not be able to see hazards until they’re close and might need to brake suddenly. Also, the road surface is likely to be wet and could be slippery.
Why the other answers don't fit
- A
- In case it changes direction suddenly — A sudden change of direction is a risk in any weather. Fog makes stopping the problem.
- B
- In case its fog lights dazzle you — Dazzle is a reason to look away from the lights, not the reason for the gap.
- D
- In case its brake lights dazzle you — Brake lights tell you it is slowing. That is information, not a hazard.
Where this comes from
- Driving: the essential skills — section 12
- The Highway Code — rule 235
Rule numbers link to The Highway Code on gov.uk.
Where this question comes from
The question, its options and the explanation are reproduced word for word from the DVSA revision question bank under licence. The licence requires them to appear unaltered, so we cannot reword them and neither can anyone else — that is why you will meet the same wording on other sites. Everything else on this page is written by Theory Hub: the explanation of why each wrong answer is wrong, the topic guide and the revision notes.
Asked in: Car
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