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    Why are vehicle mirrors often slightly curved (convex)?

    DVSA-style practice question · Hazard Awareness

    The answer options

    • They make traffic look bigger
    • They give a wider field of visionCorrect
    • They cover all blind spots completely
    • They make it easier to judge traffic speed behind

    Why the other options are wrong

    • “They make traffic look bigger” is a distractor. It does not meet the standard the question is testing, which they give a wider field of vision 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.
    • “They cover all blind spots completely” is a distractor. It does not meet the standard the question is testing, which they give a wider field of vision 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.
    • “They make it easier to judge traffic speed behind” is a distractor. It does not meet the standard the question is testing, which they give a wider field of vision 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

    Convex mirrors are curved slightly outwards to give you a wider field of vision than flat mirrors, helping you see more of the road behind and to the sides. However, they make vehicles look smaller and further away than they actually are, which can make judging traffic speed harder. Remember, convex mirrors reduce blind spots but do not eliminate them completely, so you must still carry out checks over your shoulder.

    What hazard awareness covers

    • · Static, moving and developing hazards and how they differ
    • · Scanning, mirror use and planning your response early
    • · Effects of tiredness, alcohol, drugs and prescription medicine
    • · Weather, light and road-surface conditions that reduce your margin

    Mistakes learners repeat on this topic

    • · Choosing the reactive answer (brake hard) over the planning answer (ease off early)
    • · Underestimating how long alcohol stays in the system overnight
    • · Assuming a prescribed medicine cannot affect your fitness to drive
    • · Treating a hazard as cleared before you have passed it

    Instructor tip: If two answers both work, pick the one that acts earliest — the DVSA marks anticipation, not recovery.

    How this comes up in the real test

    Questions from hazard awareness 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 Hazard AwarenessSit a full mock test

    More hazard awareness questions

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