ADI Theory Test: Car Control and Mechanical Knowledge 2026

20 free ADI Part 1 theory test questions on car control and mechanical knowledge, with the rule explained after every answer.

  • No sign-up
  • No email
  • Answers explained
  • DVSA sources
Question 1 of 200 correct

If the satellite navigation instruction and the road ahead disagree, the standard expects you to follow the satnav instruction.

More ADI theory topics

All ADI topics

What Pro adds

The theory questions stay free. Pro is the system around them: a timed mock test, a mistake bank that re-serves what you got wrong, hazard perception clips, and a study assistant.

See what Pro adds