What Is the HGV Theory Test?
The HGV theory test (also called the LGV theory test or Module 1) is the first test you must pass on your journey to becoming a qualified HGV driver. It is a computer-based test conducted at a DVSA theory test centre and consists of two parts taken on the same day: multiple choice questions and hazard perception.
You must pass the theory test before you can book your practical HGV driving test (Module 3). Your theory test certificate is valid for 2 years, so it is important to plan your training timeline carefully to avoid having to retake it.
The test covers everything a professional HGV driver needs to know — from vehicle safety and road signs to drivers' hours regulations and environmental awareness. It is more comprehensive than the standard car theory test, with 100 questions and a higher pass mark.
The Two Parts of the HGV Theory Test
Part 1: Multiple Choice
You will answer 100 multiple choice questions on a touchscreen computer. Each question has four possible answers, and you must select the correct one. Some questions may ask you to select more than one answer.
Part 2: Hazard Perception
You will watch 19 video clips showing real driving scenarios from the driver's perspective. You must click the screen as soon as you spot a developing hazard. One clip contains two scoreable hazards, giving 20 hazards in total.
Important
You must pass both parts on the same day. If you fail either the multiple choice or the hazard perception, you will need to retake both sections. The DVSA fee is £26 for multiple choice and £11 for hazard perception (£37 total).
What Topics Does the HGV Theory Test Cover?
The multiple choice section tests your knowledge across a wide range of professional driving topics. Here are the key areas you will be examined on:
Vehicle Handling & Safety
Questions on vehicle weights, dimensions, braking systems, coupling/uncoupling, and safe driving techniques specific to large goods vehicles.
Hazard Awareness
Identifying potential dangers on the road, understanding stopping distances for heavy vehicles, and anticipating the actions of other road users.
Road & Traffic Signs
Knowledge of road signs, road markings, and traffic signals — including those specific to HGV drivers such as weight limits and height restrictions.
Drivers' Hours & Tachographs
EU and domestic drivers' hours rules, tachograph operation, rest periods, and record-keeping requirements for professional drivers.
The Highway Code
General road rules, speed limits for HGVs, motorway driving, roundabouts, and vulnerable road users — all tested from a professional driver's perspective.
Environmental Awareness
Fuel-efficient driving, reducing emissions, noise pollution awareness, and the environmental responsibilities of professional HGV drivers.
How to Book Your HGV Theory Test
Booking your HGV theory test is straightforward. Follow these steps to secure your test date:
Get Your Provisional HGV Licence
Apply for a provisional lorry licence using form D2 and a D4 medical certificate. Send both to the DVLA. You cannot book the theory test without a valid provisional licence.
Book Online via the DVSA
Visit the official DVSA booking service at gov.uk/book-theory-test. Select "lorry" as your test type. The test costs £37 (£26 multiple choice + £11 hazard perception).
Choose Your Test Centre
Select a DVSA theory test centre near you. Centres close to Surrey include Guildford, Chertsey, Reading, and Croydon. Choose a date that gives you enough time to prepare.
Prepare and Revise
Use the official DVSA revision materials and practice tests. We recommend at least 2-4 weeks of focused study before your test date. Aim for 95+ in practice tests.
Attend Your Test
Arrive at the test centre at least 15 minutes early. Bring your provisional driving licence (photocard). The test takes approximately 2 hours for both parts.
Book Your Theory Test
Book directly through the official DVSA service at gov.uk/book-theory-test. Beware of unofficial booking sites that charge extra fees.
What to Expect on Test Day
Knowing what to expect at the test centre can help reduce nerves and improve your performance. Here is a step-by-step walkthrough of what happens on the day:
Arrive 15 Minutes Early
Bring your provisional driving licence (photocard). You will not be allowed to take the test without valid photo ID. No other documents are needed.
Security Check & Locker
You will be asked to place all personal belongings — phone, wallet, keys, watch — in a secure locker. No items are allowed in the test room.
Multiple Choice Section First
You will sit at a computer screen and answer 100 questions. You can flag questions to review later. A 15-minute practice session is offered before the real test begins.
Short Break
After the multiple choice section, you will have a short break of approximately 3 minutes before the hazard perception test begins.
Hazard Perception Section
You will watch 19 video clips and click the mouse when you spot a developing hazard. Click too early or in a pattern and you will score zero for that clip.
Results Immediately
You will receive your results on screen as soon as you finish. If you pass both parts, you will receive a pass letter. Your result is also sent to the DVSA automatically.
What Happens If You Fail the HGV Theory Test?
Failing the theory test is not the end of the road. Many successful HGV drivers did not pass first time. Here is what you need to know about retaking the test:
3 Working Days Wait
You must wait at least 3 clear working days before rebooking your theory test. This gives you time to review your weak areas and revise further.
Both Parts Must Be Retaken
If you fail either the multiple choice or the hazard perception, you must retake both sections. You cannot carry over a pass from one section to the next attempt.
Review Your Weak Areas
Your results letter will show which categories you scored lowest in. Focus your revision on these specific topics before rebooking.
No Limit on Attempts
There is no limit on how many times you can take the theory test. Each attempt costs £37. Our team can help you identify what went wrong and create a focused study plan.
Free HGV Theory Test Practice Resources
You do not need to spend money on expensive revision apps. Here are the best free and official resources to help you prepare:
DVSA Official Practice Theory Test
The DVSA offers a free practice theory test on gov.uk. This uses the same question bank as the real test and is the most reliable way to assess your readiness.
Try the free DVSA practice test →DVSA Theory Test Revision Books
The official DVSA revision guide for lorry drivers covers every topic in the test. Available from bookshops and online. This is the single most important study resource.
Highway Code Online
The full Highway Code is available free online at gov.uk. Pay particular attention to sections on motorway driving, speed limits for HGVs, and vulnerable road users.
Read the Highway Code free →DVSA Hazard Perception Practice
The DVSA YouTube channel has free hazard perception practice clips. Watch these to understand the scoring system and practise spotting developing hazards.
How to Prepare for Your HGV Theory Test
Proper preparation is the key to passing your HGV theory test first time. Here is our recommended approach, based on years of helping learners succeed:
HGV Theory Test vs Car Theory Test — Key Differences
If you have already passed a car theory test, here is how the HGV version compares:
| Feature | Car Theory Test | HGV Theory Test |
|---|---|---|
| Multiple Choice Questions | 50 | 100 |
| Pass Mark (Multiple Choice) | 43 / 50 (86%) | 85 / 100 (85%) |
| Time Allowed | 57 minutes | 1 hour 55 minutes |
| Hazard Perception Clips | 14 clips | 19 clips |
| Hazard Perception Pass Mark | 44 / 75 | 67 / 100 |
| Test Fee | £23 | £37 |
| Certificate Validity | 2 years | 2 years |
| Drivers' Hours Questions | No | Yes — heavily tested |
| Tachograph Questions | No | Yes |
| Vehicle Weight/Dimension Questions | No | Yes |
How GS Driver Training Helps with Your Theory Test
While the theory test is a self-study exam, we do not leave you to figure it out alone. As part of your HGV training package with GS Driver Training, we provide guidance on what to study, recommend the best revision resources, and help you plan your timeline so that your theory test, practical training, and CPC modules all fit together smoothly.
Our instructors have helped hundreds of learners pass their HGV theory test. We know which topics catch people out, which areas need the most revision, and how to approach both the multiple choice and hazard perception sections with confidence.
Why Choose GS Driver Training?
DVSA Recognised
Officially recognised by the DVSA as a high-quality training provider. Our instructors meet the highest professional standards.
7× Award Winner
Named Best HGV Training Company for seven consecutive years. Independent recognition of our training quality and student outcomes.
Male & Female Instructors
Choose from experienced male and female instructors. We believe everyone deserves to feel comfortable and supported during training.
Complete Training Packages
We offer full HGV training packages that include theory preparation guidance, practical training, and CPC qualification — all in one place.
Study Guidance Included
We recommend the best revision resources, explain which topics to focus on, and help you plan your study schedule for maximum confidence.
Full Journey Support
From provisional licence application through theory test, practical training, and CPC — we support you every step of the way.
HGV Training Across Surrey and Beyond
We support learners from across Surrey and surrounding areas. If you are looking for HGV theory test preparation and professional driver training in Surrey, GS Driver Training can help.
GS Driver Training, Guildford, Surrey
Conveniently located with direct access from the A3 and M25. Free parking available for all trainees.
What Our Students Say
Real reviews from drivers who trained with GS Driver Training.
"GS recommended exactly the right study materials for the theory test. I followed their advice, practised with the DVSA app, and passed first time with 96 out of 100. The guidance on drivers' hours was especially helpful — that section would have caught me out otherwise."
"I was worried about the hazard perception test but Gary explained how it works and what to look for. Passed both parts on my first attempt. Now doing my Class 2 practical training with GS — brilliant from start to finish."
"The whole package with GS was excellent. They helped me plan when to take my theory test so it fitted perfectly with my practical training dates. No wasted time, no stress. Highly recommend for anyone starting their HGV journey."