You're driving along the motorway. What should you do if you have to slow down due to a hazard ahead?
- A Switch on your hazard warning lights
- B Check for approaching emergency vehicles
- C Move to another lane
- D Watch out for motorcyclists
Why this is the answer
Using your hazard warning lights in addition to your brake lights will give the traffic behind you an extra warning of the hazard ahead. Only use them for long enough to be sure that your warning has been seen.
Why the other answers don't fit
- B
- Check for approaching emergency vehicles — Emergency vehicles matter, and the first thing is warning the traffic behind you.
- C
- Move to another lane — Changing lane moves the problem sideways and warns nobody.
- D
- Watch out for motorcyclists — Motorcyclists matter always; the hazard here is what is behind you.
Where this comes from
- Driving: the essential skills — section 3, section 11
- The Highway Code — rule 116
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: Driving Instructor (ADI Part 1)
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