ADI Study Guide 2026
Everything you need to pass the ADI exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
ADI exam key facts
- The UK ADI Part 1 Theory Test consists of 100 multiple-choice questions followed by a hazard perception test with 14 video clips. Source
- Candidates are allotted 90 minutes to complete the multiple-choice section of the UK ADI Part 1 Theory Test. Source
- The UK ADI Part 1 Theory Test costs £81 per attempt when booked through official channels. Source
- Candidates who fail the UK ADI Part 1 Theory Test must retake the full test and wait at least 3 working days before retesting. Source
- The UK ADI Part 1 Theory Test pass certificate lasts for 2 years, during which candidates must complete Parts 2 and 3. Source
📋 ADI Exam Format at a Glance
📚 ADI Topics to Study (32)
✍️ Sample ADI Questions & Answers
1. When using the MSM (Mirror-Signal-Manoeuvre) routine, the signal should be given:
In the MSM routine, mirrors are checked first to assess the situation; the signal is then given in time for other road users to react before the manoeuvre begins.
2. What is the minimum legal tread depth for car tyres in the UK?
The legal minimum tread depth for cars in the UK is 1.6 mm across the central three-quarters of the tread width around the entire circumference of the tyre.
3. An ADI must inform the DVSA within what period of a change of name or address?
ADIs must notify DVSA of any change to their personal details, including name or address, within 7 days to maintain the accuracy of the ADI Register.
4. What specific risk do electric vehicles (EVs) and hybrids pose to pedestrians and cyclists?
EVs and hybrids produce little sound at low speeds; pedestrians (especially those with visual impairments) may step out without hearing the vehicle approaching, creating a collision risk.
5. Which situation at a junction requires an ADI to teach the concept of 'effective observation'?
Effective observation at restricted junctions involves looking right, left and right again (and for one-way roads, left-right-left), reassessing continuously before committing to the manoeuvre.
6. What is the primary risk when opening a car door in traffic?
Opening a door without checking can strike a passing cyclist or motorcyclist (known as 'dooring'); the Dutch reach method (using the far hand) forces the driver to turn and check before opening.
🎯 Free ADI Practice Tests
📖 ADI Guides & Articles
What Practice Test Geeks adds beyond an AI chat for ADI
An AI chatbot can quiz you, but it can't reproduce the exam conditions or keep your record. Here you get:
- A timed, full-length ADI mock exam — 100 questions in 90 minutes with a 85% pass mark, modeled on the official exam's question count and time limit, followed by a score report broken down by exam domain.
- A fixed ADI question bank: the same test every attempt, so your score is comparable from one try to the next instead of changing with every regenerated quiz.
- Progress saved on your device: completed tests, scores and missed questions stay in My Progress, so you can retake only what you got wrong.
- A printable ADI cheat sheet you can print or save as a PDF.
- ADI flashcards built from the same question bank.
- Free ADI practice tests with the correct answer shown after each question.
How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy
Sources & references
Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy
- gov.uk — Exam format, retake policy, score release, score validity, exam information · verified Oct 2026
- safedrivingforlife.info — Eligibility, time limit, test delivery, fees · verified Oct 2026