You're approaching a bridge that has no height restriction on it. What's the minimum height under the bridge?
- A 3.6 metres (11 feet 9 inches)
- B 4.4 metres (14 feet 6 inches)
- C 4.8 metres (16 feet)
- D 5 metres (16 feet 6 inches)
Why this is the answer
The headroom under bridges in the UK is at least 5 metres (16 feet 6 inches), unless otherwise stated. Where the overhead clearance is arched, this headroom is normally only between the limits marked.
Why the other answers don't fit
- A
- 3.6 metres (11 feet 9 inches) — 3.6 metres is low enough that it would always be signed.
- B
- 4.4 metres (14 feet 6 inches) — 4.4 metres is a common signed height, which is exactly why it would be signed.
- C
- 4.8 metres (16 feet) — 4.8 metres is still below the height at which a sign becomes unnecessary.
Where this comes from
- Driving Buses and Coaches — section 3
- Driving Goods Vehicles — section 3, section 6
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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