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    You are towing a trailer and it begins to swing from side to side. What should you do?

    DVSA-style practice question · Vehicle Loading

    The answer options

    • Accelerate until stabilisation
    • Immediately brake and hold the brake
    • Allow it to correct itself by letting go of the steering wheel
    • Reduce speed by easing off the acceleratorCorrect

    Why that is the answer

    When a trailer starts to swing from side to side, known as snaking, gently ease off the accelerator to reduce your speed until the combination regains stability. Avoid braking sharply, as this can cause the trailer to jackknife or push the car out of control. Accelerating will only make the instability worse and increase your speed dangerously. Highway Code guidance states you should maintain steady control of the steering wheel while allowing the vehicle to slow down gradually.

    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