Theory Hub UK Theory Test

What's the speed limit on a dual carriageway in England when you're carrying a load that's 4.5 metres (14 feet 9 inches) wide?

Why this is the answer

Vehicles carrying loads between 4.3 metres (14 feet 1 inch) and 5 metres (16 feet 6 inches) wide are subject to lower speed limits. The limit depends on the type of road. On a motorway it's 40 mph (64 km/h), on a dual carriageway it's 35 mph (56 km/h), and on all other roads it's 30 mph (48 km/h).

Why the other answers don't fit

A
15 mph — Fifteen is well below the figure for this width.
B
25 mph — Twenty-five is also below it.
D
45 mph — Forty-five is the motorway figure plus five, and is above what a dual carriageway allows here.

Where this comes from

  • 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.

More about our sources and licence

Asked in: Lorry & Bus (LGV/PCV)

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