Below is a free Vehicle Loading mock test for the UK DVSA car theory test: multiple-choice questions in the official four-option format, each with the correct answer, a plain-English explanation and a Highway Code reference. Carrying passengers, loads, roof racks, trailers and towing safely.
Vehicle Loading practice questions
Checked against The Highway Code as amended · last reviewed . Spotted an error? Report it.
Q1. Who is legally responsible for making sure a vehicle's load is secure and not overloaded?
- Whoever loaded the vehicle
- The driver
- The vehicle's owner, even when not present
- The insurance company
Answer: B. As the driver, you must not use your vehicle with an insecure load or beyond its weight limits — the responsibility sits with you, whoever did the loading. Reference: The Highway Code — rule 98
Q2. How does carrying a heavy load on a roof rack affect your car?
- It lowers the centre of gravity and improves stability
- It raises the centre of gravity, reducing stability and increasing fuel consumption
- It has no effect if you drive under 50 mph
- It improves grip in crosswinds
Answer: B. Weight up high makes the car lean more in bends and react more to crosswinds, and the drag burns more fuel. Load heavy items low in the vehicle and take corners more gently.
Q3. The caravan you're towing starts to snake from side to side. What should you do?
- Brake firmly to bring it under control
- Accelerate out of the snake
- Ease off the accelerator and reduce speed gently until it stabilises
- Steer sharply in the opposite direction to the sway
Answer: C. Braking or steering against the sway makes snaking worse. Ease off gradually, let the speed fall gently, and the outfit will settle — then consider load distribution and noseweight before continuing. Reference: The Highway Code — rule 98 (towing guidance)
Q4. What speed limits apply to a car towing a caravan on a motorway?
- 70 mph, the same as any car
- 60 mph — and it must not use the right-hand lane of a three-lane motorway
- 50 mph in all lanes
- There is no specific limit when towing
Answer: B. Towing lowers the limits: 60 mph on motorways and dual carriageways, 50 mph on single carriageways — and outfits towing must keep out of the outside lane of a motorway with three or more lanes. Reference: The Highway Code — rules 124 and 265
Q5. Who is responsible for making sure a child under 14 uses the correct seat belt or child restraint?
- The child
- The driver
- The front-seat passenger
- Whoever owns the car
Answer: B. The driver is legally responsible for children under 14: children must normally use the correct child restraint until they're 12 years old or 135 cm tall, whichever comes first. Reference: The Highway Code — rules 99–102
Q6. How should animals be carried in a car?
- Loose, so they can settle comfortably
- Suitably restrained — a harness, carrier or guard — so they can't distract you or hurt themselves
- On the front passenger seat
- Only in the boot
Answer: B. An unrestrained animal can distract you or become a projectile in a crash. Use a seat-belt harness, carrier, cage or dog guard. Reference: The Highway Code — rule 57
Q7. You're carrying a heavy load in the boot for a long trip. What may need adjusting?
- Nothing — modern cars self-adjust
- Tyre pressures and headlight aim, as the handbook specifies for heavy loads
- Only the driver's seat position
- The wing mirrors
Answer: B. A heavy load squats the rear: the handbook typically specifies higher tyre pressures, and headlights may need aiming down to avoid dazzling oncoming drivers. Reference: The Highway Code — rule 98 and Annex 6
Q8. Before setting off towing a trailer, what should you check?
- Only that the trailer lights work
- That the load is within your car's towing limit, the coupling is secure, the breakaway cable or secondary coupling is attached and the lights work
- That the trailer is heavier than the car
- Nothing extra beyond normal checks
Answer: B. Towing failures are usually preparation failures: respect the manufacturer's towing limit, confirm the hitch and breakaway cable (or secondary coupling), and check lights and indicators respond before moving off. Reference: GOV.UK — Tow a trailer or caravan with a car: safety checks; The Highway Code — rule 98
Q9. You passed your car driving test in 2019. Under the current rules, what's the heaviest trailer, by maximum authorised mass (MAM), your car licence lets you tow?
- 750 kg
- 1,000 kg
- 3,500 kg
- 8,250 kg
Answer: C. If you passed your car test on or after 1 January 1997, you can now tow a trailer of up to 3,500 kg MAM — known as category BE. You still mustn't exceed the towing limit the manufacturer sets for your particular car. Reference: GOV.UK — Towing with a car
Q10. You're thinking of towing with your car, but its VIN plate doesn't show a gross train weight. What does this mean?
- You can tow any trailer up to 750 kg
- You can tow as long as the trailer has brakes
- You must fit towing mirrors before towing
- You shouldn't use the car for towing
Answer: D. The gross train weight is the maximum weight of the fully loaded car plus the fully loaded trailer, and it must not be exceeded. If your car's VIN plate doesn't list a train weight, you should not use the vehicle for towing. Reference: GOV.UK — Towing with a car
Q11. A trailer has no braking system of its own. What is the most it may weigh when loaded?
- 750 kg
- 1,000 kg
- 1,500 kg
- 3,500 kg
Answer: A. A trailer without brakes must not weigh more than 750 kg when loaded, and it shouldn't weigh more than half as much as your car. Any trailer weighing over 750 kg when loaded must have a working brake system. Reference: GOV.UK — Tow a trailer or caravan with a car: safety checks
Q12. You're packing a caravan for a holiday. Where should the heaviest items go?
- At the very back, to balance the weight of the car
- In a roof box on the car to free up space
- Over the axle, with the load spread evenly
- Right at the front, as close to the hitch as possible
Answer: C. Distribute the weight evenly, with heavy items over the axle or axles. Too much weight at the back makes the caravan unstable and prone to snaking, too much at the front can exceed the tow ball limit, and roof loads make the car less stable. Reference: The Highway Code — rule 98
Q13. When your caravan is hitched up, what does the Highway Code say about the load on the tow ball?
- There should be no weight on the tow ball at all
- It should pull upwards slightly on the tow ball
- It can be as heavy as you like with a large car
- It should press down, within the manufacturer's limit
Answer: D. Load the caravan so there's a downward load on the tow ball (the noseweight) without exceeding the manufacturer's recommended tow ball load. Getting this right helps minimise swerving, snaking and loss of control. Reference: The Highway Code — rule 98
Q14. Your trailer keeps starting to snake whenever you reach a certain speed. According to DVSA guidance, what is this a sign of?
- Going too fast, or a badly loaded trailer
- Driving in too low a gear
- A fault with the trailer's lights or indicators
- Tyres on the car that are brand new and not worn in
Answer: A. Snaking is a sign that either you're going too fast or the trailer is loaded incorrectly. Ease off and reduce speed gently to regain control, then check how the load is distributed and keep your speed down. Reference: GOV.UK — Tow a trailer or caravan with a car: safety checks
Q15. When must you use towing mirrors on your car?
- Only when towing on motorways and fast dual carriageways
- Whenever the loaded trailer weighs more than 750 kg in total
- When the trailer is wider than your car or blocks your view
- Only when you're towing after dark or in poor visibility
Answer: C. If your vehicle is narrower than the trailer or load, or the trailer or load obstructs your view to the rear, towing mirrors MUST be used. Towing without proper mirrors can lead to a fine of up to £1,000 and 3 penalty points. Reference: The Highway Code — rule 98; GOV.UK — Towing with a car
Q16. You're towing a caravan on a single-carriageway road where the national speed limit applies. What is your maximum speed?
- 50 mph
- 55 mph
- 60 mph
- 70 mph
Answer: A. Cars towing caravans or trailers are limited to 50 mph on single carriageways, compared with 60 mph for a car that isn't towing. The national speed limit sign doesn't mean the same limit applies to every vehicle. Reference: The Highway Code — rule 124
Q17. What is a breakaway cable on a braked trailer designed to do?
- Carry power from the car to the trailer's lights
- Stop the trailer swaying from side to side in crosswinds
- Brake the trailer if it comes off the hitch
- Hold the jockey wheel up off the road while you drive
Answer: C. A breakaway cable or secondary coupling engages the trailer's brakes, or stops the trailer, if it becomes detached from the car. Check it isn't worn, has enough slack not to apply the brakes by accident, and won't drag on the ground. Reference: GOV.UK — Tow a trailer or caravan with a car: safety checks
Q18. You drive with a load that's poorly secured and puts other road users in danger. What penalty can this bring?
- A verbal warning only
- No penalty unless something falls off
- Points only if you're driving a lorry
- 3 penalty points on your licence
Answer: D. Causing, or being likely to cause, danger because of your load or passengers is an endorsable offence (code CU50) carrying 3 penalty points. You don't have to wait for something to fall off — an unsafe load is enough. Reference: GOV.UK — Penalty points (endorsements)
Q19. Your car's manufacturer's plate gives a maximum weight for the car on its own. What does this figure include?
- Passengers, luggage and fuel
- Only the luggage in the boot
- Just the empty car
- Everything except the driver
Answer: A. The maximum weights on the manufacturer's plate include passengers, other loads and fuel. A car full of people and holiday luggage can be close to its limit before you even hitch up a trailer, so check the plate or handbook. Reference: GOV.UK — Tow a trailer or caravan with a car: safety checks
Q20. How does towing a heavy trailer affect your stopping distance?
- It shortens it, because of the extra weight
- It makes no difference if the trailer has brakes
- It only affects stopping in wet weather
- It can increase it significantly
Answer: D. Your stopping distance may increase significantly when towing, even with a braked trailer. Leave a bigger gap, slow down in plenty of time for hazards, and avoid braking harshly on a bend, which makes a trailer unstable. Reference: The Highway Code — rule 98; GOV.UK — Tow a trailer or caravan with a car: safety checks
Q21. Your 15-year-old passenger refuses to wear their seat belt. Who is legally responsible?
- You, as the driver
- Their parent or guardian
- The owner of the car
- The passenger
Answer: D. Drivers are responsible for passengers under 14, but a passenger aged 14 or over is legally responsible for wearing their own seat belt. As the driver you should still insist, because an unbelted passenger is at far greater risk in a crash. Reference: The Highway Code — rule 99
Q22. The back seats are full. May a child travel in the luggage area behind the rear seats of your hatchback?
- Only in a special child seat fitted there
- Yes, if they sit on a cushion
- Yes, for short journeys under 30 mph
- Yes, as long as the parcel shelf is removed
Answer: A. Children should not sit behind the rear seats in an estate car or hatchback unless a special child seat has been fitted there. The luggage area gives no proper restraint, and every child still needs the correct seat or belt. Reference: The Highway Code — rule 102
Q23. You're carrying a heavy toolbox loose on the back seat. Why is this dangerous?
- It will noticeably increase the car's fuel consumption
- It could scratch the upholstery
- In a crash it could hit and injure someone
- It will stop the rear seat belts from locking properly
Answer: C. You MUST secure your load. Heavy or sharp objects left loose can be thrown forward if you stop suddenly or crash, hitting people inside the vehicle and causing serious injury. Stow them securely in the boot. Reference: The Highway Code — rule 98
Q24. A friend's car has broken down and they ask you to tow it home with a rope. What does the Highway Code advise?
- A rope is the safest method for any distance
- Only tow it at night, when the roads are much quieter
- Tow it with the hazard lights on in both cars
- Consider a solid tow bar or professional recovery
Answer: D. Towing a vehicle on a tow rope is potentially dangerous, so the Highway Code advises considering a solid tow bar or professional recovery. Hazard warning lights mustn't be used while driving or being towed, except on a motorway or unrestricted dual carriageway to warn drivers behind of a hazard ahead. Reference: The Highway Code — rules 98 and 116
Q25. You're giving lifts and have one more child than there are seat belts. Could two small children share one belt?
- No, each belt is for one person only
- Yes, provided they're both under 12 years old
- Yes, but only for short journeys at low speed
- Yes, as long as they're sitting in the back
Answer: A. Only one person is allowed in each seat fitted with a seat belt. Two children sharing a belt can't both be properly restrained and could be badly hurt in a crash, so make a second trip or arrange another vehicle. Reference: GOV.UK — Seat belts: the law
Frequently asked questions
How many Vehicle Loading questions are in the real theory test?
The DVSA doesn't publish per-topic counts. Your 50 questions are drawn across all 14 official topics, so revise every category.
What is the pass mark for the UK theory test?
You need 43 out of 50 multiple-choice questions correct (86%), plus 44 out of 75 on the hazard perception clips. You must pass both parts in the same sitting.
Are these real DVSA questions?
No — these are original practice questions written to the current DVSA syllabus and The Highway Code. Official revision questions are Crown Copyright and only available from licensed providers.
Revise the other theory test topics
Your 50 test questions are drawn from all 14 official DVSA topics — revise every category, not just this one.
- Alertness
- Attitude
- Essential Documents
- Hazard Awareness
- Incidents, Accidents & Emergencies
- Motorway Rules
- Other Types of Vehicle
- Road & Traffic Signs
- Rules of the Road
- Safety & Your Vehicle
- Safety Margins
- Vehicle Handling
- Vulnerable Road Users
Don't forget part two: read how hazard perception is scored. Booked your test? Find your nearest theory test centre, or book on the official GOV.UK booking service (£23).
All practice questions are original study material written to the current DVSA car theory test syllabus and The Highway Code. They are not actual DVSA exam questions. This site is an independent study resource and is not affiliated with or endorsed by the DVSA.