Theory Hub UK Theory Test

What does this sign mean?

Why this is the answer

It's essential to know the height of your vehicle before setting off. This should be clearly marked, usually in the cab, and visible from the driving position. Look out for restrictions that you may not have seen on a map - they may be temporary.

Why the other answers don't fit

A
Slippery road — A slippery road shows a car with skid marks.
B
Double bend — A double bend shows the road swinging twice.
D
Cable laying ahead — Cable laying is a roadworks sign with its own wording.

Where this comes from

  • Driving Buses and Coaches — section 3
  • Driving Goods Vehicles — section 3, section 6
  • The Highway Code — page 129
  • Know Your Traffic Signs — page 29

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)

More questions on Vehicle weights and dimensions

Vehicle weights and dimensions →