Part 1 - Driving Instructor Training with 4front Driving School You can  book your approved driving instructor ( ADI ) part 1 test  when your  application to start the  ADI  qualifying process  has been accepted. It’s the first of 3 tests you have to pass to qualify as an  ADI . It’s a theory test. There are 2 parts to your Part 1 test: multiple-choice questions hazard perception  - a video test about spotting hazards on the road You book and take them as a single test. You must pass both parts to pass the test. Multiple-choice questions You have 1 hour and 30 minutes to answer 100 multiple-choice questions. You need to get 80% score in each category Before the test starts you’ll get: instructions on how the test works the chance to do some practice questions to get used to the screens How the test works There are 25 questions in each of these 4 categories: road procedure traffic signs and signals, car control, pedestrians and mechanical knowledge driving t