Theory exam

This is an old question that is no longer in use.

Images may be missing and the information may be dated.

Go to the current theory test questions (2026) >>

What does this road sign mean?

  • Correct: No vehicles with trailer if the combined length of the vehicle and trailer exceeds 20 metres.
  • Incorrect: No vehicles having an overall length exceeding 20 metres. A coupled trailer meaning that the combined length of the vehicle and trailer exceeds 20 metres is acceptable however.
  • Incorrect: No vehicles having an overall width exceeding 20 metres.
  • Incorrect: No vehicles having an overall length under 20 metres.


Restricted vehicle length (C18)
The sign indicates that traffic with vehicles or a vehicle/trailer combination over a certain length is prohibited. The greatest permitted length is indicated on the sign.

Vehicle/trailer combination: ”A motor vehicle with one or several connected vehicles.” (Road Traffic Definitions Act)


Körkortonline.se offers driving licence theory tests in English. This is an example of an explanation of a test question.

More examples of explanations:

Category:



Buy all 1000 questions in English

Free demo »
Driving licence questions – practice theory tests online
  • All 1000 practice questions
  • Unlimited number of tests
  • Start practicing instantly
Swish, Visa, Mastercard