ADI Theory Test: Road Procedure for Instructors 2026

20 free ADI Part 1 theory test questions on road procedure for instructors, with the rule explained after every answer.

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Question 1 of 200 correct

Complete this sentence about the marking pupils often confuse with an ordinary centre line.

A      warning line is a longer marking that replaces a centre line or lane line, for example on the approach to a bend or a junction.

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