The answer options
- The combination of your trailer and towing vehicle cannot weigh more than 3,500kg
- Your empty trailer can weigh 3,500kg
- Your trailer can carry a maximum load of 3,500kg
- The combined weight of your trailer and load cannot exceed 3,500kgCorrect
Why the other options are wrong
- “The combination of your trailer and towing vehicle cannot weigh more than 3,500kg” is a distractor. It does not meet the standard the question is testing, which the combined weight of your trailer and load cannot exceed 3,500kg does. Picking it in the real test costs a mark you cannot get back, and with a pass mark of 43 out of 50 you only have seven to spare.
- “Your empty trailer can weigh 3,500kg” is a distractor. It does not meet the standard the question is testing, which the combined weight of your trailer and load cannot exceed 3,500kg does. Picking it in the real test costs a mark you cannot get back, and with a pass mark of 43 out of 50 you only have seven to spare.
- “Your trailer can carry a maximum load of 3,500kg” is a distractor. It does not meet the standard the question is testing, which the combined weight of your trailer and load cannot exceed 3,500kg does. Picking it in the real test costs a mark you cannot get back, and with a pass mark of 43 out of 50 you only have seven to spare.
Why that is the answer
Maximum Authorised Mass, or MAM, is the absolute limit a trailer can legally weigh when fully loaded. This includes the unladen weight of the trailer itself plus the weight of any load being carried. Drivers often mistake MAM for payload, but payload is just the weight of the cargo. Exceeding the MAM is unsafe and illegal, as highlighted in official DVSA guidance, because overloaded trailers severely affect vehicle handling and braking performance.
What vehicle loading covers
- · Driver responsibility for load security and legal weight limits
- · Loading a trailer or caravan and the effect on stability
- · Stabilisers, breakaway cables and towing mirrors
- · Roof racks, roof boxes and the effect on fuel consumption
Mistakes learners repeat on this topic
- · Loading heavy items high or towards the rear of a trailer
- · Assuming a stabiliser corrects a badly distributed load
- · Believing the passenger is responsible for a child's seat belt
- · Forgetting that a roof load raises the centre of gravity in crosswinds
Instructor tip: Any snaking-trailer question resolves to slowing down gently — never brake hard or accelerate out of it.
How this comes up in the real test
Questions from vehicle loading appear throughout the 50-question multiple-choice section, and the wording changes between versions. Learn the rule rather than the sentence: the DVSA can ask the same point from the opposite direction, and a memorised answer falls over the moment the phrasing moves.
The pass mark is 43 out of 50, so seven wrong answers is your entire margin. If a whole category is shaky, run the topic practice below until you are getting every question right for the right reason, then go back to full mocks under the clock.
More vehicle loading questions
- A trailer braking system must have a safety device fitted. What is this device?
- A vehicle should never be overloaded. Who is responsible for ensuring this?
- Are passenger allowed to travel in a caravan when been towed?
- How will the handling of your car change if you have a large load on your roof rack?
- Sometimes you may need to increase your tyre pressure to above the normal value. When would this be necessary?
- What is the maximum authorised mass (MAM) you can tow in any trailer, having just passed your driving test?