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    In foggy conditions, what must you do if you are making a journey?

    DVSA-style practice question · Vehicle Handling

    The answer options

    • Closely follow other vehicles
    • Leave 2 seconds between the vehicle in front and yourself
    • Do not use dipped headlights
    • Allow ample time for your journeyCorrect

    Why the other options are wrong

    • “Closely follow other vehicles” is a distractor. It does not meet the standard the question is testing, which allow ample time for your journey 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.
    • “Leave 2 seconds between the vehicle in front and yourself” is a distractor. It does not meet the standard the question is testing, which allow ample time for your journey 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.
    • “Do not use dipped headlights” is a distractor. It does not meet the standard the question is testing, which allow ample time for your journey 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

    Fog reduces visibility, so you must drive at a lower speed to stay safe. Allowing extra time for your journey ensures you do not feel rushed into driving inappropriately fast. You should never tailgate, and the standard two-second gap must be increased in poor conditions. Furthermore, the Highway Code states that you must use dipped headlights when visibility is seriously reduced, so keeping them off is dangerous.

    What vehicle handling covers

    • · Front and rear fog lights and the 100-metre visibility rule
    • · Descending steep hills in a lower gear and engine braking
    • · Traffic calming, humps, and driving over tram rails
    • · Night driving, dipped headlights and dazzle from oncoming traffic

    Mistakes learners repeat on this topic

    • · Leaving rear fog lights on after visibility improves
    • · Coasting downhill in neutral to save fuel
    • · Using full beam on a lit motorway or behind another vehicle
    • · Accelerating between speed humps instead of holding a steady speed

    Instructor tip: Any question with fog in it usually turns on the 100-metre rule — check visibility before you check the lights.

    How this comes up in the real test

    Questions from vehicle handling 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.

    Practise Vehicle HandlingSit a full mock test

    More vehicle handling questions

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