Vehicle loading: car theory test questions
Carrying loads and passengers safely, child restraints, towing trailers and caravans, and speed limits when towing. Practise 25 free vehicle loading questions with instant answers and explanations – no sign-up.
- 25 questions
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- Highway Code references
Vehicle loading: revision notes
Vehicle loading questions cover anything that changes how your car behaves because of extra weight – luggage, passengers, pets or a trailer. The key rules are Highway Code rule 98 (towing and loading) and rules 99 to 102 (seat belts and child restraints).
- Loads: you must not overload your vehicle, and you must secure your load so it can't move or stick out dangerously.
- Tyres and lights: inflate tyres to the handbook pressure for the load, and adjust headlights if the car sits lower at the back.
- Towing: heavy items over the axle, a downward load on the tow ball, a secondary coupling and towing mirrors if needed. If the trailer snakes, ease off gently – don't brake harshly.
- Speed limits when towing: 50 mph on single carriageways and 60 mph on dual carriageways and motorways (rule 124).
- Children: the driver is responsible for under-14s. Under 1.35 metres (or 12 years old), use the correct child restraint.
Tip: never fit a rear-facing baby seat in front of an active airbag – it's one of the most important safety facts in this topic.
All vehicle loading questions and answers
Revise every question in this topic. Tap a question to see the correct answer and why.
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
3You're about to set off with a fully loaded car for a holiday. What should you check about your tyres?
- That they're inflated to the manufacturer's recommended pressure for the load ✓
- That they're slightly under-inflated to give more grip
- That they're at the same pressure as when the car is empty, whatever the handbook says
- Nothing – tyre pressures don't depend on the load
Answer: That they're inflated to the manufacturer's recommended pressure for the load. Tyres must be inflated to the vehicle manufacturer's specification for the load being carried. Check your handbook – many cars need higher pressures when fully loaded.
Highway Code Annex 6: Vehicle maintenance, safety and security
4Your car is heavily loaded at the back. What might you need to adjust before driving at night?
- Your fog lights, so they point slightly upwards
- Your interior mirror, so that it points at the load
- Nothing – headlights adjust only for weather
- Your headlights, so they don't dazzle other road users ✓
Answer: Your headlights, so they don't dazzle other road users. A heavy load or a trailer can tilt the car and make headlights point higher. Adjust them so they don't dazzle other road users.
Highway Code rule 98; Annex 6
5You're dropping off young children on a busy street. Which door should they use to get out?
- The door nearest the traffic
- The door nearest the kerb ✓
- Whichever door is closest to them
- The boot of the car
Answer: The door nearest the kerb. Children should get into and out of the vehicle through the door nearest the kerb, away from passing traffic.
Highway Code rules 102 and 239
6You're towing a caravan. What should you check about the downward load on the tow ball?
- That it's as heavy as possible, for better grip
- That there's no downward load on it at all
- That it doesn't exceed the manufacturer's recommended limit ✓
- That it's heavier than the caravan's total weight
Answer: That it doesn't exceed the manufacturer's recommended limit. There should be a downward load on the tow ball, but you shouldn't exceed the manufacturer's recommended weight and tow ball load. Getting this right reduces swerving or snaking.
Highway Code rule 98
7The caravan you're towing starts to snake from side to side. What should you do?
- Brake hard to stop as quickly as possible
- Speed up to pull the caravan straight
- Steer sharply in the opposite direction
- Ease off the accelerator and reduce speed gently ✓
Answer: Ease off the accelerator and reduce speed gently. If a trailer starts to swerve or snake, ease off the accelerator and reduce your speed gently to regain control. Don't brake harshly.
Highway Code rule 98
8Your trailer is wider than your car and blocks your view behind. What MUST you use?
- Towing mirrors ✓
- A reversing camera only
- An extra rear fog light
- Hazard warning lights
Answer: Towing mirrors. If your vehicle is narrower than your trailer or load, or it blocks your view to the rear, you must use towing mirrors.
Highway Code rule 98
9What MUST every trailer be fitted with, in case the main coupling fails?
- A full-size spare wheel and jack
- A secondary coupling, such as a safety chain ✓
- A second number plate fitted on the front
- Its own set of front fog lights
Answer: A secondary coupling, such as a safety chain. Your trailer must be fitted with a secondary coupling device, such as a safety chain. It helps keep control if the trailer becomes detached.
Highway Code rule 98
10You're towing a caravan on a single carriageway road where the national speed limit applies. What's the maximum speed?
- 40 mph
- 50 mph ✓
- 60 mph
- 70 mph
Answer: 50 mph. Cars towing caravans or trailers are limited to 50 mph on single carriageways, and 60 mph on dual carriageways and motorways.
Highway Code rule 124
11You're towing a trailer on a motorway. What's the maximum speed limit for your car?
- 40 mph
- 50 mph
- 60 mph ✓
- 70 mph
Answer: 60 mph. A car towing a caravan or trailer is limited to 60 mph on motorways and dual carriageways. You also mustn't use the right-hand lane of a motorway with three or more lanes.
Highway Code rules 124 and 265
12How does towing a trailer affect your stopping distance?
- It gets shorter because of the extra weight
- It stays exactly the same
- It may increase significantly ✓
- It only changes on wet roads
Answer: It may increase significantly. Your stopping distance may increase significantly when towing. The extra length and weight also affect overtaking, braking and acceleration, so leave more space.
Highway Code rules 98 and 160
13Why should heavy luggage and sharp objects be securely stowed in your car?
- They could be thrown forward and hurt someone in a crash ✓
- So they don't upset the car's fuel gauge reading
- Because loose items can set off the car's alarm system
- So they're easier to find when you reach your destination
Answer: They could be thrown forward and hurt someone in a crash. Heavy or sharp objects must be secured. If there's a collision, loose items can be thrown forward and seriously injure the people in the vehicle.
Highway Code rule 98; Annex 6
14You're taking your dog on a car journey. What should you do?
- Let it sit on the front passenger's lap so it stays calm
- Leave it loose so it can move around comfortably
- Let it put its head out of an open window for fresh air
- Restrain it with a harness, carrier, dog cage or dog guard ✓
Answer: Restrain it with a harness, carrier, dog cage or dog guard. Make sure animals are suitably restrained so they can't distract you or injure you or themselves if you stop quickly. A seat belt harness, pet carrier, dog cage or dog guard can be used.
Highway Code rule 57
15Your car is carrying a long load that sticks out beyond the vehicle. You need to leave it parked on the road overnight. What MUST you do?
- Nothing, as long as the road has a 30 mph limit
- Cover the end of the load with a dark sheet
- Leave lights on – projecting loads need lights at night ✓
- Park it facing against the traffic so the load points at the kerb
Answer: Leave lights on – projecting loads need lights at night. Vehicles with projecting loads must not be left on a road at night without lights, even where other cars may park without lights. The load must also never stick out dangerously.
Highway Code rules 98 and 250
16You're driving with a two-year-old child in the front passenger seat. What MUST they use?
- An adult seat belt, adjusted to fit
- The correct child restraint for their weight ✓
- A lap belt only, fastened loosely
- Nothing, if an adult holds them on their lap
Answer: The correct child restraint for their weight. Children under three must use the correct child restraint in the front or back of a car. The driver is responsible for making sure they do.
Highway Code rules 99 and 100
17A 9-year-old who is 1.30 metres tall is travelling in the back of your car. What MUST they use?
- The correct child restraint, such as a booster seat ✓
- An adult seat belt only, if it's comfortable
- Nothing, as long as they sit in the middle seat
- A lap belt fastened across their waist only
Answer: The correct child restraint, such as a booster seat. A child under 1.35 metres tall (or under 12, whichever comes first) must use the correct child restraint, such as a booster seat or cushion, chosen for their weight.
Highway Code rule 100
18Where MUST you never fit a rear-facing baby seat?
- In the rear seat directly behind the driver
- In any seat fitted with an adult seat belt
- In any car that has an opening sunroof
- In a seat protected by an active frontal airbag ✓
Answer: In a seat protected by an active frontal airbag. A rear-facing baby seat must not be fitted in a seat protected by an active frontal airbag, as the airbag could seriously injure or kill the child in a crash.
Highway Code rule 101
19Who's legally responsible for making sure a 10-year-old passenger in your car is properly restrained?
- The child
- The child's parent, even if they're not in the car
- The driver ✓
- The adult sitting next to them
Answer: The driver. The driver must make sure that all children under 14 wear seat belts or use the correct child restraint.
Highway Code rule 100
20Your passenger is 16 years old. Who's responsible for making sure they wear a seat belt?
- The driver
- The passenger ✓
- The vehicle's owner
- Whoever is sitting next to them
Answer: The passenger. Passengers aged 14 and over are responsible for wearing their own seat belt. The driver is responsible for children under 14.
Highway Code rule 99
21Where should children NOT sit in an estate car or hatchback, unless a special child seat has been fitted?
- In the rear seats, wearing seat belts
- Directly behind the driver's seat
- In the middle of the rear seat, belted in
- Behind the rear seats, in the luggage area ✓
Answer: Behind the rear seats, in the luggage area. Children shouldn't sit behind the rear seats in an estate car or hatchback unless a special child seat has been fitted there.
Highway Code rule 102
22Your car breaks down and a friend offers to tow you home with a rope. What does The Highway Code advise?
- Consider a solid tow bar or professional recovery instead ✓
- Use the shortest rope you can find so the cars stay close
- Tow ropes are safe as long as you switch on hazard lights
- Only tow on motorways, where the road is straighter
Answer: Consider a solid tow bar or professional recovery instead. Towing a vehicle on a tow rope is potentially dangerous. Consider using a solid tow bar or professional recovery instead.
Highway Code rule 98
23Before towing, which TWO things MUST you make sure of? Mark two answers.
- The trailer has been washed
- All the trailer's lights work correctly ✓
- The trailer's tyres are legal and its braking system works ✓
- The trailer is the same colour as your car
Answer: All the trailer's lights work correctly; The trailer's tyres are legal and its braking system works. You must make sure your vehicle and trailer are roadworthy, including legal tyres, a fully working trailer braking system and all trailer lights working correctly.
Highway Code rule 98
24You're loading a caravan for a trip. Which TWO of these help reduce the risk of it swerving or snaking? Mark two answers.
- Spread the weight evenly, with heavy items over the axle(s) ✓
- Put the heaviest items at the very back of the caravan
- Leave heavy items loose so they settle as you drive
- Make sure there's a downward load on the tow ball, within the recommended limit ✓
Answer: Spread the weight evenly, with heavy items over the axle(s); Make sure there's a downward load on the tow ball, within the recommended limit. Distribute the weight evenly with heavy items over the axle(s), and ensure a downward load on the tow ball within the manufacturer's limits. This minimises swerving or snaking.
Highway Code rule 98
25You want to tow a heavy trailer for the first time. What should you check about your driving licence?
- That it's less than five years old
- That it shows your current MOT
- That it allows you to tow that weight of trailer ✓
- Nothing – any full car licence covers every trailer
Answer: That it allows you to tow that weight of trailer. You must not tow more than your licence permits. Check the categories and weight limits on your licence, and the maximum towing weight the vehicle manufacturer recommends.
Highway Code rule 98
Frequently asked questions
What is the speed limit when towing a caravan?
For a car towing a caravan or trailer it's 50 mph on single carriageways and 60 mph on dual carriageways and motorways, unless a lower limit is signed.
When does a child need a car seat in the UK?
Children must use the correct child restraint until they're 12 years old or 1.35 metres tall, whichever comes first. After that they must wear a seat belt.
What should you do if your trailer starts to snake?
Ease off the accelerator and reduce your speed gently to regain control. Don't brake harshly (Highway Code rule 98).
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.
