You're driving a large vehicle in a straight line. When is it most stable?
- A During harsh acceleration
- B During gentle braking
- C During gentle acceleration
- D During harsh braking
Why this is the answer
A vehicle is most stable when travelling in a straight line under gentle acceleration. Sudden acceleration, steering or braking can cause severe loss of control. For maximum control, keep your driving as smooth as possible.
Why the other answers don't fit
- A
- During harsh acceleration — Harsh acceleration throws weight backwards and lightens the steering.
- B
- During gentle braking — Gentle braking is close, and it still moves weight forward off the drive axle.
- D
- During harsh braking — Harsh braking is the least stable of the four.
Where this comes from
- Driving Buses and Coaches — section 7
- Driving Goods Vehicles — section 3
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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