When should you use hazard warning lights?
- A When you're double-parked on a two-way road
- B When your direction indicators are not working
- C When warning oncoming traffic that you intend to stop
- D When your vehicle has broken down and is causing an obstruction
Why this is the answer
Hazard warning lights are an important safety feature and should be used if you've broken down and are causing an obstruction. Do not use them as an excuse to park illegally. You may also use them on motorways or unrestricted dual carriageways to warn traffic behind you of danger ahead.
Why the other answers don't fit
- A
- When you're double-parked on a two-way road — Hazard lights do not excuse illegal parking.
- B
- When your direction indicators are not working — Hazard lights use the same bulbs as the indicators.
- C
- When warning oncoming traffic that you intend to stop — They face both ways and would tell oncoming traffic nothing useful.
Where this comes from
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
More questions on Hazard awareness
- A driver’s behaviour has upset you. How can you get over this incident safely?
- Do you need to plan rest stops when you’re planning a long journey?
- How can drinking alcohol affect your ability to drive or ride?
- How does drinking alcohol affect your driving behaviour?
- How should you drive or ride in areas with traffic-calming measures?
- Some two-way roads are divided into 3 lanes. Why are they particularly dangerous?
- What advice should you give to a driver who has had a few alcoholic drinks at a party?
- What can seriously reduce your ability to concentrate?