Home Free Theory Test Practice Resources Free Practice Theory Test Questions HGV / LGV Theory Test Questions and Answers

HGV / LGV theory test questions and answers (UK)

Preparing for your DVSA HGV / LGV theory test? Use this page to explore a taster of the most up-to-date DVSA revision HGV / LGV theory test questions and answers taken from the complete DVSA HGV / LGV practice question bank.

These UK HGV / LGV revision questions link through to our full explanations, so you can understand not just which answer is correct, but why it's correct.

View HGV / LGV theory test questions and answers

Want to pass your DVSA HGV / LGV theory test first time?

Looking for more than just a few sample questions? With Driving Theory 4 All, you can unlock our complete AI-powered HGV / LGV theory test app. Get access to the full DVSA practice question bank, unlimited mock theory tests, and hazard perception practice tests so you can walk into your DVSA HGV / LGV theory test feeling confident.

Rated 5★ by HGV / LGV learners across the UK

Rated 4.7 out of 5

Get full HGV / LGV theory test practice access now

HGV / LGV theory test questions and answers

Below you'll find a selection of DVSA HGV / LGV revision theory test questions. Tap or click any question to view the full DVSA-style question, see the correct answer and read the explanation.

What can coasting downhill seriously affect?

What's the first thing you should try to do if your vehicle catches fire while you're driving through a tunnel?

Your vehicle is fitted with air brakes. What does it mean if a brake warning light shows when you've just started the engine?

You arrive at the scene of an incident. How should you deal with someone who is hysterical?

You're driving an articulated lorry that has three air lines connected to the trailer. What's the purpose of the red line?

You arrive at the scene of an incident where a motorcyclist is lying in the middle of the road and unconscious. What's the first thing you should do?

You've just started the engine. What must you do if the brake air-pressure warning light is showing?

You arrive at an incident where a motorcyclist is lying in the road, unconscious and bleeding. The area is safe and the emergency services have been called. What's the first priority when checking the rider?

Your vehicle is fully loaded. Where should you be braking when dealing with bends?

Where must extra care be taken when using an endurance brake (retarder)?

Your vehicle is fitted with air-assisted hydraulic brakes. What would warn you that there isn't enough air in the system?

Your vehicle catches fire while you're driving through a tunnel. What should you do if the vehicle can still be driven?

You arrive at the scene of an incident and someone is unconscious. What's the first thing you should do to help them?

When does 'brake fade' occur?

Your vehicle breaks down on a motorway. What should you do if you can't get it fully onto the hard shoulder?

Air-brake systems usually have two lines. Which additional line is fitted on a three-line system?

You've had an incident while driving through a tunnel. You aren't injured but your vehicle can't be driven. What's the first thing you should do in this situation?

What should you do if you're the first person to arrive at the scene of an incident?

At the scene of an incident, an injured person is lying in a busy road. What's the first thing you should do to help?

You're about to drive an unfamiliar vehicle. What should you do if you think there may be moisture in the air-brake reservoir?

'Brake fade' is a loss of effectiveness of the brakes when they overheat. When would 'brake fade' be most likely to happen?

When is trailer swing most likely to occur on a lorry and drawbar combination?

What must you do if you're involved in a traffic incident?

You're the first person to arrive at an incident where people are badly injured. What's the first thing you should do?

You've been involved in an incident and damaged some property. What should you do if nobody else is present and your vehicle is still roadworthy?

Your lorry is stuck in snow. You use the diff-lock to move off. When should you switch the diff-lock off?

What's 'brake fade'?

You have to drive onto a muddy building site. Why should you switch on your diff-lock?

You're at the scene of a collision. People are injured. What should be done when the risk of further collisions has been dealt with?

The area around an incident is safe. What's the best way to help an injured person?

When is an articulated vehicle most at risk of jack-knifing?

When should you stop trying to resuscitate a casualty?

What system is used to control a vehicle's speed without using the footbrake?

Your vehicle is involved in an incident where someone is injured. You don't produce your insurance certificate at the time. How soon must you report the incident to the police?

What causes 'brake fade'?

You arrive at an incident where someone is suffering from severe burns. What should you do to help?

Your vehicle is fitted with hydraulic brakes. Why might the brake pedal go down too far when it's pressed?

What should you do before entering a tunnel?

Your vehicle is fitted with an anti-lock braking system. When should you check that it's working properly?

You're at an incident. Why may it be harmful to move a casualty?

Your lorry is equipped with anti-lock brakes. What's the correct procedure for stopping in an emergency?

What does changing to a lower gear on a long downhill gradient help to avoid?

While driving through a tunnel, your vehicle catches fire. What's the first thing you should do if the vehicle can't be driven out of the tunnel?

How can you help to prevent 'brake fade'?

At the scene of an incident, a person has become hysterical. How should you calm them down?

How can a lorry driver avoid brake fade?

You're driving an articulated lorry. What could happen if you change to a lower gear while you're going too fast?

You arrive at the scene of an incident. A casualty has an injured arm that's bleeding heavily. What could you do to help while waiting for the emergency services to arrive?

What should you do when you drive into a tunnel?

You've stopped at the scene of an incident where there are casualties. What should you do to help while waiting for the emergency services to arrive?

What training must you take before driving a lorry loaded with toxic substances?

What should you do when an air-pressure warning device activates?

At the scene of a crash, a casualty is in contact with live electrical cables. What should you use to break the electrical connection?

Your vehicle has anti-lock brakes. How does this affect you when you're braking normally?

What should you do when you're driving through a tunnel in heavy traffic?

A lorry is overtaking you on a two-lane motorway. What should you do if it doesn't have the speed to get past?

Your vehicle is fitted with an anti-lock braking system. What's it designed to allow you to do?

In frosty weather, what precaution could a lorry driver take to prevent moisture from freezing in the air-brake system?

What's the principal braking system on a lorry called?

What will 'pumping' the brake pedal in a vehicle fitted with anti-lock brakes cause?

You arrive at the scene of an incident where someone is injured. What should be given urgent priority?

At an incident, you suspect a casualty has back injuries. What's the best way to help them?

You arrive at the scene of an incident. The emergency services have already been called. A pedestrian is bleeding heavily from a leg wound, but their leg isn't broken. What could you do to help them?

You're approaching a bridge that has no height restriction on it. What's the minimum height under the bridge?

What should you avoid when using an independent endurance brake (retarder) on slippery roads?

You're driving a vehicle fitted with anti-lock brakes. What should you do when braking in an emergency?

Which type of fire extinguisher shouldn't be used on flammable liquids?

You're at the scene of an incident. How can you help someone suffering from shock?

Your vehicle is fitted with an air-assisted hydraulic braking system. What would warn you that the air compressor is not working?

Your vehicle is fitted with air-assisted hydraulic brakes. What fault would you suspect if the brake pedal becomes hard to press?

What should you do when there's a fire in your vehicle's engine compartment?

What colour is the auxiliary line on a three-line braking system?

You're driving through a congested tunnel. What should you do if you have to stop?

At an incident, a casualty has stopped breathing. How could you help them?

What should you do before driving into a tunnel?

There's been an incident. What can you do to help a driver who's suffering from shock?

You're stationary. The brake air-pressure warning light comes on. Why should you keep the parking brake on?

Which component will last longer when you use a retarder?

You're about to drive a vehicle fitted with hydraulic brakes. What should you check before driving the vehicle?

You're trying to resuscitate a casualty who isn't breathing. For how long should you continue compressions if they haven't started breathing again?

You're driving down a long hill. What should you use to prevent the brakes from overheating?

At an incident, a casualty is unconscious but still breathing. Why would you move them?

The emergency line is common to both two-line and three-line brake systems. What colour is it?

You're waiting for the emergency services to arrive at the scene of an incident. A pedestrian's leg is bleeding heavily, but there's nothing embedded in the wound. What could you do to help?

How will anti-lock brakes improve your vehicle's safety?

What should you do after driving through a flood?

Your engine catches fire. What should you do before attempting to put the fire out?

You're about to drive a vehicle fitted with air-assisted hydraulic brakes. Why might the brake pedal feel hard when you press it?

When can an endurance brake (retarder) be especially useful?

When should an endurance brake (retarder) be used?

What should you do if the brake air-pressure warning light comes on while you're driving?

What should anti-lock brakes let you do when you have to stop in an emergency?

Your vehicle is fitted with a 'diff-lock'. When would you normally use it?

What could prevent air pressure from building up in an air-brake system in frosty weather?

A vehicle has rolled over and caught fire. The driver's hands and arms have been burned. How could you help the driver?

You're stopped by a police officer for a suspected motoring offence. Which document will you always be asked to produce?

Your tractor unit has three air lines. You're connecting to a trailer that has two air-line couplings. What colour is the line you shouldn't connect to the trailer?

You're at the scene of an incident. What does it mean if there's a plain orange rectangle displayed on one of the vehicles?

When are exhaust brakes most efficient?

You're driving down a snow-covered hill. Why should you take care when using an independent endurance brake (retarder)?

You're at the scene of an incident. What would suggest someone is suffering from shock?

You're driving through a tunnel. What should you do if your vehicle breaks down?

You're at the scene of a traffic incident. What are the symptoms of someone suffering from shock?

You're driving a tractor unit fitted with two air lines. You want to couple to a trailer that has three air-line couplings. How should the air lines be connected?

Want to take a DVSA HGV / LGV practice theory test?

Once you've looked at individual questions and answers, it's a great idea to try a full UK HGV / LGV practice theory test.

Get complete HGV / LGV theory test practice with our AI app

Get full theory test practice access now

How many theory test questions are in the DVSA HGV / LGV theory test?

The multiple-choice questions section of the DVSA HGV / LGV theory test contains 100 questions, and you must score at least 85 to pass this part of the test.

Each question has four possible answers, and you choose the one you believe is correct.

Preparing with realistic HGV / LGV theory test questions and answers like the ones on this page helps you get used to the style and difficulty of the actual exam.

Get full theory test practice access now

Find out more about what we offer for the DVSA HGV / LGV theory test

Want a complete revision solution for your DVSA HGV / LGV theory test? Driving Theory 4 All provides full DVSA revision question banks, unlimited mock theory tests, hazard perception test clips and smart AI-powered revision tools for HGV / LGV learners.

Find out more about the DVSA HGV / LGV theory test course from Driving Theory 4 All

Not what you were looking for?

Find out what we offer for every DVSA theory test by selecting the theory test you want to prepare for.

Industry leading reviews from 2116 verified buyers...

"getting so much better with this app"

Stephanie Sundquist

1 day ago via Google Play Store

"brilliant app i got too scared to take my theory when i was 17 now im 33 and this app really did help. Guess what? I took my theory test today and passed 1st time. most questions were the same as t..."

Dionne Burton

2 days ago via Google Play Store

"Good app"

Pearl Lee

1 week ago via Reviews.co.uk

"I'm actually making good progress here. I recommend it alot"

Sungano Puwai

1 week ago via Reviews.co.uk

"A"

Andrew Leonard

1 week ago via Reviews.co.uk

"This app is amazing"

Abimbola Oladoja

1 week ago via Google Play Store

"fantastic"

Tochi Njoko

1 week ago via Google Play Store

"I had used this App for only 3 weeks to prepare for my LGV theory test and hazard perception test and passed first time with very high scores. It was a real life saver for me and definitely recomme..."

Abdul Mohammed

1 week ago via Reviews.co.uk

"Very good app to use"

Maimouna Thiam

2 weeks ago via Reviews.co.uk

"I did give this app a review previously but was prematurely given, I've given this 4 stars because it is good for refreshing and learning hazards, signs, questions etc but the app seems to go over..."

spencer mcgowan

2 weeks ago via Google Play Store

Keep up to date with us on social media...


Do you have a theory test date booked with the DVSA that you want to change? 🚗📅 Changing or cancelling a DVSA theory test date is a straightforward process. This article gives you the steps to reschedule your theory test booking 👇 https://t.co/hsWfeUOYIZ #changetheorytest https://t.co/RuRNtayck1
7 hours ago
What is the highway code?! 🤔 It is essential reading for any driver 👀 Find out more by reading our handy article below! 👇 https://t.co/8u3AxCUHB3 https://t.co/kXt55ETQC2
1 day ago
Need an earlier theory test? 💥 Find theory test waiting times at any DVSA theory test centre 👇 https://t.co/KvCTcgT9mv #theorytest #theorytestwaitingtimes #drivingtheorytest https://t.co/rgzlDxlNDP
2 days ago
What is the difference between a dual carriageway and a motorway? As a learner driver in the UK preparing for your DVSA theory test, it's essential to understand the differences between various types of roads. Here's everything you need to know 👇 https://t.co/7JvfSU0Vvq https://t.co/BOLUexFO1J
6 days ago
Want to know how to book driving test dates? 🤷‍♂️ Our useful article can help you learn everything you need 👇 https://t.co/MFBa3pOWar https://t.co/cc31ZDIKrI
1 week ago
Are you looking to pass your driving theory test? 😃 Our AI-powered driving theory test app can help you pass your theory test quicker than you thought possible 😍 Start your driving theory test practice free trial now 👇 https://t.co/t4xIylQKpR https://t.co/iFqZVpFeJ3
1 week ago
How long is a theory test valid? 🗓️🚗 The theory test certificate is valid for two years from the date you pass. Here's everything you need to know 👇 https://t.co/A9ix1I8SNf #theorytest #drivingtheorytest #booktheorytest #dvsatheorytest https://t.co/oovWrnvDnw
1 week ago
Are you looking to take your car theory test ❓ Our online training platform will guide you through every aspect of the UK driving theory test step by step to allow you to smash it first time 😀 Try our training platform now 👇 https://t.co/TOnOI4AFML https://t.co/pahXmfFbcj
1 week ago
Revise for the DVSA theory test by watching short tutorial videos 🙌🎬 Check out our 'Theory Test Revision' series over on our YouTube channel 👇 https://t.co/XkLDdlwgG0 #theorytest #drivingtheorytest #theorytestvideos #roadsafety https://t.co/wuCWSOKXw8
2 weeks ago
Are you looking to take your car theory test ❓ Our online training platform will guide you through every aspect of the UK driving theory test step by step to allow you to smash it first time 😀 Try our training platform now 👇 https://t.co/TOnOI4AFML https://t.co/mlFdZgrJYh
2 weeks ago
What is a puffin crossing? 🚗 A puffin crossing is a modern pedestrian crossing system that uses smart sensors to detect when pedestrians are crossing to ensure maximum safety and efficiency. This article will explore how puffin crossings work 👇 https://t.co/HSqCXTdB4b https://t.co/ycQ1sSctt0
2 weeks ago
What is the DVSA theory test pass mark? ✅ The theory test pass mark is 86%. This means you need to score 43 out of 50 multiple-choice questions to pass this section of the test. The hazard perception test pass mark is 44 out of 75 👇 https://t.co/8oP2dtoPgl #theorytest https://t.co/tsGfDY1ICW
2 weeks ago
🚗 Worried about your theory test? 🚗 Here's how to pass your theory test first time WITHOUT reading a single book 👇 https://t.co/jlI1c9IM4i #theorytest #theorytestpractice #theorytestrevision #booktheorytest https://t.co/BoCP2KRRG9
2 weeks ago
Want a deep dive into UK road signs and meanings? ⚠️ ✍️This comprehensive guide walks you through UK road signs you need to know for the DVSA theory test 👇 https://t.co/NLAy3wzEjv #roadsigns #ukroadsigns #theorytestroadsigns #theorytest https://t.co/9bV2I2m0Tc
3 weeks ago
Which colour follows the green signal at a puffin crossing? 🚦🚗 Find out now along with everything you need to know about puffin crossings 👇 https://t.co/HSqCXTdB4b #puffincrossing #theorytest #drivingtheorytest #booktheorytest https://t.co/iR16hcNqEU
3 weeks ago
Want to pass your DVSA theory test? 😃🙌 ✨Try our AI-powered theory test practice FREE trial now 👇 https://t.co/t4xIylQKpR #theorytest #theorytestpractice #drivingtheorytest https://t.co/4TPPaANaH8
3 weeks ago
What is a contraflow system? 🤷‍♂️ Our useful article will help you understand everything you need to know 👇 https://t.co/SgC8LD44Ds https://t.co/EZiy1ebbt8
3 weeks ago
What is a contraflow system? 🤷‍♂️ Our useful article will help you understand everything you need to know 👇 https://t.co/SgC8LD44Ds https://t.co/J93omYs25k
3 weeks ago
TWO SECOND RULE ⚠️ In good dry weather, you need to position your vehicle at least two seconds behind the vehicle in front 🚗 In bad weather conditions, this safety gap should be doubled or more ⛈️ Get ready for your car theory test 👇 https://t.co/jlI1c9IM4i #theorytest https://t.co/rfCtRNmpZE
3 weeks ago
Are you looking for a car theory test practice free trial? 👀 Try our online training platform for free to pass your theory test faster than you ever thought possible! 😍 Learn your driving theory now 👇 https://t.co/1mIz9zlLHH #theoryforall #drivingtheory https://t.co/F2KkaUsS1i
4 weeks ago

HGV / LGV theory test questions and answers (UK)

Want to pass your DVSA HGV / LGV theory test first time?

HGV / LGV theory test questions and answers

Want to take a DVSA HGV / LGV practice theory test?

How many theory test questions are in the DVSA HGV / LGV theory test?

Find out more about what we offer for the DVSA HGV / LGV theory test

Industry leading reviews from 2116 verified buyers...

Keep up to date with us on social media...

Driving Theory 4 All

Who we help

What we offer

Why learners choose Driving Theory 4 All