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    The diameter of needle in Vicat apparatus for initial setting time is-
    Question

    The diameter of needle in Vicat apparatus for initial setting time is-

    A.

    0.5 mm

    B.

    1 mm

    C.

    5 mm

    D.

    10 mm

    Correct option is B


    In the Vicat apparatus, the needle used to determine the initial setting time of cement has a diameter of 1 mm. This needle is used to penetrate the cement paste to check its initial setting characteristics.

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