You want to tow a trailer that’s wider than your car. What must you fit to your car before you start towing it?
- A Exterior towing mirrors
- B Projection markers
- C Parking sensors
- D Rear-view camera
Why this is the answer
Exterior towing mirrors must be fitted to a towing vehicle if • the vehicle is narrower than the trailer or load • the trailer or load obstructs the rearward view.
Why the other answers don't fit
- B
- Projection markers — Projection markers are for loads that overhang, not for a wide trailer.
- C
- Parking sensors — Parking sensors help when manoeuvring and show you nothing behind the trailer.
- D
- Rear-view camera — A camera is useful and is not what the law requires.
Where this comes from
- Driving: the essential skills — section 19
- The Highway Code — rule 98
- NSD
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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