What's the minimum height of an unmarked bridge?
- A 4.5 metres (14 feet 9 inches)
- B 4.7 metres (15 feet 5 inches)
- C 4.8 metres (15 feet 9 inches)
- D 5 metres (16 feet 6 inches)
Why this is the answer
If a height is not shown on the bridge, the headroom (in the UK) will be at least 5 metres (16 feet 6 inches).
Why the other answers don't fit
- A
- 4.5 metres (14 feet 9 inches) — 4.5 metres is below the height at which a bridge is left unsigned.
- B
- 4.7 metres (15 feet 5 inches) — 4.7 metres is still below it.
- C
- 4.8 metres (15 feet 9 inches) — 4.8 metres is closer, and the figure to remember is higher.
Where this comes from
- Driving Buses and Coaches — section 3, section 6
- 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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