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  1. Cold crushing strength of ordinary fireclay brick is about 950 kg/cm2 . On exposure to a temperature of about 1500°C, its crushing strength may come down to as low as __________ kg/cm2 .

    2. A.
    450
    B.
    250
    C.
    150
    D.
    65

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    Workspace

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    Answer : Option D

    Explanation :

    No answer description available for this question.

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