What type of road surface will increase your stopping distance by up to 10 times?
- A Bumpy
- B Icy
- C Worn
- D Wet
Why this is the answer
To prevent your wheels from locking, you'll need to brake very gently on ice. Give yourself as much room and time as possible to stop. If your front wheels lock, you cannot steer, and that will mean you cannot avoid any obstacle in your path.
Why the other answers don't fit
- A
- Bumpy — A bumpy surface shakes the vehicle; it does not remove the grip.
- C
- Worn — A worn surface is polished and slippery, and nothing like ten times.
- D
- Wet — Wet doubles the distance, not multiplies it by ten.
Where this comes from
- Driving Buses and Coaches — section 8, section 9
- Driving Goods Vehicles — section 8, section 9
- The Highway Code — rule 126
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: Lorry & Bus (LGV/PCV)
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