The answer options
- To prevent brake locking
- To prevent damage to road surfaces
- To prevent tyre wear
- To prevent skidding in snowCorrect
Why that is the answer
Fitting snow chains to your tyres gives extra grip when driving through deep snow or ice. They bite into the slippery surface to help prevent the wheels from spinning and the car from skidding. You should only use them on snow-covered roads, as driving with chains on clear tarmac can actually damage both the road surface and your tyres. Anti-lock brakes, rather than chains, are designed to prevent your wheels from locking.
How this comes up in the real test
Questions from vehicle handling appear throughout the 50-question multiple-choice section, and the wording changes between versions. Learn the rule rather than the sentence: the DVSA can ask the same point from the opposite direction, and a memorised answer falls over the moment the phrasing moves.
The pass mark is 43 out of 50, so seven wrong answers is your entire margin. If a whole category is shaky, run the topic practice below until you are getting every question right for the right reason, then go back to full mocks under the clock.
More vehicle handling questions
- A lot of snow has fallen recently. When driving in these conditions, what are some things to think about?
- After fog has cleared, it can be dangerous to leave your rear fog lights switched on. What is the reason for this?
- What colour are the reflective studs along the left-hand edge of the motorway?
- During the day, when should dipped headlight be used?
- How can you regulate your speed with the engine of your car?
- How should you deal with this hazard?