Which tool is essential for fitting a road wheel?
- A Torque wrench
- B Ring spanner
- C Open-end spanner
- D Adjustable wrench
Why this is the answer
It's essential that all wheel nuts are tightened to the specified torque with a calibrated torque wrench. The wheel nuts, fixings and markers should be checked every day before you start your journey.
Why the other answers don't fit
- B
- Ring spanner — A ring spanner turns the nut; it cannot tell you how tight it is.
- C
- Open-end spanner — An open-end spanner is worse still and rounds the corners off.
- D
- Adjustable wrench — An adjustable wrench slips and damages the nut.
Where this comes from
- Driving Buses and Coaches — section 7
- Driving Goods Vehicles — section 7
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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