The answer options
- Gear mechanism will be stiff
- Indicators will flash quicker
- Headlights will aim too high
- Stopping distance will increaseCorrect
Why that is the answer
Under-inflated tyres cannot grip the road surface correctly, which reduces traction and vehicle control. This lack of grip means your vehicle will take longer to slow down, increasing your overall stopping distance. According to the Highway Code, keeping tyres correctly inflated is essential for safe braking and steering. Incorrect tyre pressure also increases fuel consumption, but it will not alter your indicators, gear mechanism, or headlights.
How this comes up in the real test
Questions from safety and your vehicle 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 safety and your vehicle questions
- A vehicle MOT test will include an exhaust emissions test. What is the reason for this?
- Before leaving your vehicle unattended, what should you remove from it?
- How can drivers help the environment?
- How can driving in a fuel-efficient manner help protect the environment?
- How can the volume of traffic on roads be reduced?
- How can you avoid wasting fuel?