Closed to vehicles which, including their load, are higher than indicated on the sign.
Round white sign with a red rim, two black triangles above and below and a measure in metres: closed to vehicles higher than that.
Just before the low underpass or the turn towards it, on the right; often pre-announced at the previous junction.
The question names a vehicle height including load (or a roof box) and a sign with a measure: if you are above it, the road is closed. Trap: the height on the sign is the maximum vehicle height, so with 3.5 m on the sign a 3.6 m vehicle may not pass. Do not confuse C19 with L1, which gives the actual clearance as information.
Correct answer: The height of the vehicle, including load
Why learners get this wrong: Sign C19 with a figure in metres tests the width of the vehicle, load included.
C18 — Arrows sideways: width.L1 — Blue information sign with the clearance of an underpass.C21 — A number in tonnes: mass, not height.C17C18C20C21C16C22aC15C22b