The answer options
- Anti-lock brakes on the towing vehicle
- A stabiliser on the tow barCorrect
- Power steering on the towing vehicle
- A jockey wheel on the tow bar
Why the other options are wrong
- “Anti-lock brakes on the towing vehicle” is a distractor. It does not meet the standard the question is testing, which a stabiliser on the tow bar 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.
- “Power steering on the towing vehicle” is a distractor. It does not meet the standard the question is testing, which a stabiliser on the tow bar 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.
- “A jockey wheel on the tow bar” is a distractor. It does not meet the standard the question is testing, which a stabiliser on the tow bar 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
Fitting a stabiliser to your tow bar helps counteract snaking and pitching, which can happen in strong winds or when large vehicles pass by. This keeps the caravan aligned with your car and significantly improves overall handling. While a jockey wheel is useful for manoeuvring an uncoupled caravan, it does nothing while driving. Anti-lock brakes and power steering assist the towing vehicle itself, but they will not stabilise the caravan.
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?