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 Format at a Glance
📚 ADI Topics to Study (33)
✍️ 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.