Theory Test Questions and Answers
Practise driving theory test questions by topic and see the answer straight away, with a clear explanation based on The Highway Code.
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How our theory test questions and answers work
Each question has four options and either one correct answer or two, marked "Mark two answers". As soon as you choose, you see whether you're right, the correct answer and a short explanation, with a reference to The Highway Code or Know your traffic signs. That way, every mistake teaches you something.
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Driving theory test questions by topic
Pick a topic to practise its questions with answers and explanations:
- Alertness questions – observation, distractions, tiredness and mobile phones
- Attitude questions – courtesy, patience and keeping a safe gap
- Safety and your vehicle questions – checks, faults, tyres and security
- Safety margins questions – stopping distances and driving in bad weather
- Hazard awareness questions – spotting hazards early and reacting in time
- Vulnerable road users questions – pedestrians, cyclists, motorcyclists, horse riders and children
- Other types of vehicle questions – lorries, buses, trams and other large vehicles
- Vehicle handling questions – control on different roads and in different conditions
- Motorway rules questions – joining, lane discipline, speed limits and breakdowns
- Rules of the road questions – speed limits, junctions, parking and priority
- Road and traffic signs questions – signs, road markings and signals
- Essential documents questions – licences, insurance, MOT and vehicle tax
- Incidents, accidents and emergencies questions – what to do at a crash, first aid, CPR and defibrillators
- Vehicle loading questions – loads, towing and carrying passengers safely
Sample theory test questions and answers
Here are three examples of the style you'll find in our practice quizzes.
1. How big a gap should you leave behind the vehicle in front on a dry, fast road?
- A. At least one second
- B. At least two seconds
- C. At least half a second
- D. At least one car length
Answer: B. Leave at least a two-second gap in good conditions, and at least double that on wet roads (Highway Code rule 126).
2. What is the legal minimum tread depth for car tyres?
- A. 1 mm
- B. 1.6 mm
- C. 2.5 mm
- D. 4 mm
Answer: B. Car tyres must have at least 1.6 mm of tread across the central three-quarters of the tread and around the whole tyre (Highway Code: Annex 6, vehicle maintenance, safety and security).
3. What is the typical overall stopping distance at 30 mph?
- A. 12 metres
- B. 23 metres
- C. 36 metres
- D. 53 metres
Answer: B. It's 23 metres: 9 metres thinking distance plus 14 metres braking distance (Highway Code: typical stopping distances). Learn the full chart in our stopping distances guide.
Road signs and Highway Code questions
Signs come up in the Road and traffic signs topic and in many others too. Sharpen up with our road signs test, then try a mixed Highway Code test. Both use the same free, instant-feedback format.
How to learn the answers, not just memorise them
- Read the explanation every time, even when you're right. Knowing why helps with questions you haven't seen before.
- Use "Retry wrong answers only" at the end of a quiz until you score full marks.
- Check the rule. Look up the Highway Code reference on GOV.UK when something surprises you.
- Move on to mocks. When every topic feels solid, take a timed mock theory test.
New for 2026: theory tests now include questions on CPR and defibrillators. Practise them in Incidents, accidents and emergencies.
Sample questions and answers from every topic
Alertness
1You're on a long motorway journey and keep yawning and losing concentration. What should you do?
- Leave at the next exit or services and rest ✓
- Open a window and carry on, as fresh air will help
- Turn the radio up loud to keep yourself awake
- Pull onto the hard shoulder and have a short nap
Answer: Leave at the next exit or services and rest. Tiredness greatly increases your risk of a collision. Leave the motorway and rest somewhere safe; the hard shoulder and emergency areas are only for emergencies.
Highway Code rules 91 and 262
2How often does The Highway Code recommend you take a break on a long drive?
- At least 5 minutes after every hour of driving
- At least 30 minutes after every four hours of driving
- At least 15 minutes after every two hours of driving ✓
- Only once you start to feel tired
Answer: At least 15 minutes after every two hours of driving. Planning regular breaks keeps you alert. A break of at least 15 minutes after every two hours of driving is the recommended minimum.
Highway Code rule 91
Attitude
1What does 'tailgating' mean?
- Staying in the middle lane when the left lane is clear
- Overtaking another vehicle on its left-hand side
- Driving with your boot or tailgate left open on the road
- Following too closely to stop safely if the vehicle ahead brakes ✓
Answer: Following too closely to stop safely if the vehicle ahead brakes. Tailgating is when the gap in front is too small to stop safely. It is dangerous, intimidating and a common cause of collisions.
Highway Code rule 126
2The driver behind you is following far too closely. Which response is safest?
- Brake sharply to warn them to back off
- Gradually increase the gap in front of you ✓
- Speed up to get away from them quickly
- Switch on your hazard lights and keep going
Answer: Gradually increase the gap in front of you. A bigger gap in front gives you time to slow down gradually if needed, so the driver behind is less likely to hit you. Reacting aggressively only adds risk.
Highway Code rules 126 and 147
Safety and your vehicle
1What is the minimum legal tread depth for car tyres?
- 1.0 mm
- 1.6 mm ✓
- 2.0 mm
- 2.5 mm
Answer: 1.6 mm. Cars must have at least 1.6 mm of tread across the central three-quarters of the tread and around the whole circumference. 1 mm is the limit for motorcycles and large vehicles.
Highway Code: Annex 6 (Vehicle maintenance, safety and security)
2Where must the minimum 1.6 mm tread depth be found on a car tyre?
- Across the outer edges of the tread only
- Across the full width, but only on the front tyres
- At any single point on the tyre's surface
- Across the central three-quarters, all the way round ✓
Answer: Across the central three-quarters, all the way round. The law requires at least 1.6 mm across the central three-quarters of the breadth of the tread and around the entire circumference.
Highway Code: Annex 6 (Vehicle maintenance, safety and security)
See all safety and your vehicle questions →
Safety margins
1What minimum gap does The Highway Code advise between you and the vehicle in front on high-speed roads in good conditions?
- At least one second
- At least two seconds ✓
- At least five seconds
- At least ten seconds
Answer: At least two seconds. Allow at least a two-second gap on high-speed roads, and more in poor conditions.
Highway Code rule 126
2How should you change your following gap when the road is wet?
- Keep it the same as on a dry road
- Reduce it slightly, because traffic is slower
- At least double it ✓
- Make it ten times longer
Answer: At least double it. Tyres have less grip on wet roads, so the gap should be at least doubled.
Highway Code rules 126 and 227
See all safety margins questions →
Hazard awareness
1The broken white line in the centre of the road changes to longer lines with shorter gaps. What does this mean?
- The road is about to become one-way
- You may now overtake if it's clear
- There's a hazard ahead ✓
- The speed limit is about to change
Answer: There's a hazard ahead. When the centre line lengthens and the gaps shorten, it warns of a hazard ahead. Don't cross it unless you can see the road is clear.
Highway Code rule 127
2You're approaching an ice cream van parked at the side of a residential road. What should you do?
- Keep your speed and move to the centre of the road
- Speed up so you pass the van quickly
- Sound your horn as you pass the van
- Slow down, as children may run into the road ✓
Answer: Slow down, as children may run into the road. Children are more interested in ice cream than traffic and may run out without looking. Drive slowly and be ready to stop.
Highway Code rule 206
See all hazard awareness questions →
Vulnerable road users
1You're overtaking a cyclist on a road with a 30 mph limit. What is the minimum space The Highway Code advises?
- 0.5 metres
- 1 metre
- 1.5 metres ✓
- 2 metres
Answer: 1.5 metres. Leave at least 1.5 metres when overtaking cyclists at speeds of up to 30 mph, and give them more space at higher speeds.
Highway Code rule 163
2You see a horse rider ahead on a country road. How should you pass?
- Slow to no more than 10 mph and leave at least 2 metres ✓
- Slow to 20 mph and leave at least 1 metre
- Pass quickly to keep the time alongside short
- Sound your horn first so the horse expects you
Answer: Slow to no more than 10 mph and leave at least 2 metres. Horses can be startled easily. Slow right down, be patient and pass wide and slow when it's safe.
Highway Code rules 163 and 215
See all vulnerable road users questions →
Other types of vehicle
1Why should you keep well back when following a lorry?
- To see further ahead and so the driver can see you ✓
- To avoid breathing in fumes from its exhaust pipe
- So that you can overtake it more quickly later
- Because lorries can brake faster than cars
Answer: To see further ahead and so the driver can see you. Large vehicles block your view. Dropping back lets you see further ahead and makes you more visible to the lorry driver.
Highway Code rules 164 and 222
2A long lorry ahead is signalling left but moving out to the right before a junction. What should you do?
- Overtake it quickly on the right
- Sound your horn to warn the driver
- Pass it on the left while there's still a gap
- Hold back, as it needs extra room to make the turn ✓
Answer: Hold back, as it needs extra room to make the turn. Long vehicles may need to swing out to turn. Be prepared to stop and wait, and never try to squeeze past on the inside.
Highway Code rules 170 and 221
See all other types of vehicle questions →
Vehicle handling
1You're driving at 40 mph on a dry road in a car with good brakes and tyres. What's the typical overall stopping distance?
- 23 metres (75 feet)
- 36 metres (118 feet) ✓
- 53 metres (175 feet)
- 73 metres (240 feet)
Answer: 36 metres (118 feet). The typical overall stopping distance at 40 mph is 36 metres: about 12 metres of thinking distance plus 24 metres of braking distance. It will be longer in the wet, on ice or if you're tired.
Highway Code rule 126 (Typical stopping distances)
2On a dry road at 60 mph, about how far will a car typically travel from the moment the driver sees a hazard until it stops?
- 36 metres (118 feet)
- 53 metres (175 feet)
- 73 metres (240 feet) ✓
- 96 metres (315 feet)
Answer: 73 metres (240 feet). At 60 mph the typical overall stopping distance is 73 metres, made up of 18 metres thinking distance and 55 metres braking distance. That's roughly the length of 18 cars.
Highway Code rule 126 (Typical stopping distances)
See all vehicle handling questions →
Motorway rules
1Which of these is NOT allowed to use a motorway?
- A motorcyclist with a provisional licence ✓
- A car towing a large touring caravan
- A van driver who holds a full car licence
- A coach carrying 50 seated passengers
Answer: A motorcyclist with a provisional licence. Holders of provisional motorcycle licences must not use motorways, along with pedestrians, cyclists, horse riders and some slow vehicles. Cars towing caravans, vans and coaches may use them.
Highway Code rule 253
2When may a learner car driver drive on a motorway?
- With any full licence holder aged 21 or over who has held it for three years
- With an approved driving instructor, in a car with dual controls ✓
- Never – learner drivers are banned from using all motorways
- Only at night or early morning, when the motorway is quieter
Answer: With an approved driving instructor, in a car with dual controls. Learner car drivers may drive on a motorway only with a DVSA approved driving instructor, in a car with dual controls displaying red L plates (or D plates in Wales).
Highway Code rule 253
See all motorway rules questions →
Rules of the road
1You're driving a car on a single carriageway road where the national speed limit applies. What's the maximum speed?
- 30 mph
- 50 mph
- 60 mph ✓
- 70 mph
Answer: 60 mph. The national speed limit for cars on a single carriageway is 60 mph. On dual carriageways and motorways it's 70 mph.
Highway Code rule 124
2In England, you're on a road with street lights and no speed limit signs. What speed limit usually applies?
- 20 mph
- 30 mph ✓
- 40 mph
- 50 mph
Answer: 30 mph. In England and Scotland a 30 mph limit generally applies on roads with street lights (other than motorways) unless signs show otherwise. Some areas have local 20 mph limits.
Highway Code rule 124
See all rules of the road questions →
Road and traffic signs
1You see this sign at the entrance to a street. What does it mean?
- No through road
- Road closed ahead – diversion
- No stopping or parking
- No entry for vehicles ✓
Answer: No entry for vehicles. A red circle with a white horizontal bar means no entry for vehicular traffic. You'll often see it at the exit end of a one-way street.
Highway Code: Traffic signs (Signs giving orders)
2What does this blue circular sign tell you to do?
- Follow the one-way street
- Go ahead only ✓
- Use the right-hand lane
- Overtaking is allowed
Answer: Go ahead only. A blue circle gives a positive instruction – this one means ahead only. Don't confuse it with the rectangular 'one-way traffic' sign, which also shows a white arrow.
Highway Code: Traffic signs (Signs giving orders)
See all road and traffic signs questions →
Essential documents
1Your new car was first registered today. When will it normally need its first MOT test?
- Three years after it was first registered ✓
- One year after it was first registered
- Five years after it was first registered
- Only when it's sold to a new owner
Answer: Three years after it was first registered. Cars must normally pass an MOT three years from the date of first registration, and every year after that.
Highway Code Annex 3: Motor vehicle documentation
2Your car is six years old. How often does it need an MOT?
- Every two years
- Every three years
- Every year ✓
- Only after a major repair
Answer: Every year. After the first test at three years, a car must have an MOT every year. Driving without a valid MOT when one is needed is an offence.
Highway Code Annex 3: Motor vehicle documentation
See all essential documents questions →
Incidents, accidents and emergencies
1You're the first to arrive at a crash on a quiet road. Which TWO of these should you do first? Mark two answers.
- Switch on your hazard warning lights ✓
- Pull injured people out of their cars straight away
- Ask the drivers involved to switch off their engines ✓
- Give the casualties a hot drink to calm them
Answer: Switch on your hazard warning lights; Ask the drivers involved to switch off their engines. Make the scene safer first: use your hazard warning lights to warn traffic and ask drivers to switch off their engines to reduce the risk of fire. Don't move injured people unless they're in immediate danger.
Highway Code rule 283; Annex 7: First aid on the road
2A driver involved in a collision is still in their car and complaining of neck pain. Nothing is on fire and traffic has stopped. What should you do?
- Help them out of the car so they can lie down on the verge
- Ask them to get out and walk around to see how badly hurt they are
- Drive them to the nearest hospital A&E department yourself
- Keep them still in the car and reassure them until help arrives ✓
Answer: Keep them still in the car and reassure them until help arrives. Don't move injured people from their vehicles unless they're in immediate danger, such as from fire. Moving them could make an injury worse.
Highway Code rule 283
See all incidents, accidents and emergencies questions →
Vehicle loading
1You're carrying a load on a trailer behind your car. Who's responsible for making sure it's secure?
- You, the driver ✓
- The person who loaded it
- The trailer's owner
- The company that sold you the goods
Answer: You, the driver. As the driver, you must make sure your load is secure and doesn't stick out dangerously. Check it before you set off and during long journeys.
Highway Code rule 98
2Why MUST you not overload your car or trailer?
- It improves fuel economy but wears the seats
- It only matters if you're driving on a motorway
- It makes the indicators flash too slowly
- It can affect braking, steering and stability ✓
Answer: It can affect braking, steering and stability. You must not overload your vehicle or trailer. Extra weight affects braking and acceleration and can make the vehicle unstable, especially on bends or when braking hard.
Highway Code rules 98 and 160
See all vehicle loading questions →
Frequently asked questions
How many questions are in the theory test?
The car theory test has 50 multiple-choice questions to answer in 57 minutes. They come from a much bigger bank: the official DVSA revision kit alone has more than 770 questions.
Are these the actual theory test questions?
No. Our questions are original and written from The Highway Code and Know your traffic signs. They cover the same 14 topics, but they are not the real test questions.
Where do theory test questions come from?
They're based on The Highway Code, Know your traffic signs and Driving – the essential skills. The first two are free to read on GOV.UK.
What does "Mark two answers" mean?
It means two of the four options are correct, and you must choose both to get the mark. Read these questions carefully, as one right answer isn't enough.
Are road signs on the theory test?
Yes. Road and traffic signs is one of the 14 topics, and signs also appear in questions on other topics.
Do your questions include the new CPR questions?
Yes. Our Incidents, accidents and emergencies topic covers CPR and defibrillators, which were added to theory tests for 2026.
Original practice questions based on The Highway Code (Open Government Licence v3.0). Not the real test questions. MockTheory is not affiliated with or endorsed by the DVSA.
