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    On a smart motorway, variable speed limits are displayed on overhead gantries. What is the purpose of these?

    DVSA-style practice question · 2024/2025 Updates

    The answer options

    • To test new speed limits
    • To manage traffic flow and reduce congestionCorrect
    • To confuse drivers into driving slowly
    • They are only advisory, not mandatory

    Why that is the answer

    Variable speed limits on smart motorways are mandatory and legally enforceable. They help manage traffic flow, reduce congestion, and improve safety.

    How this comes up in the real test

    Questions from 2024/2025 updates 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 2024/2025 updates questions