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Discussion :: Building Materials

  1. Pick up the correct statement from the following:

    2. A.

     Plastics have generally low melting point
    B.

     The coefficient of thermal expansion of plastics is about three times than that of steel
    C.

     The acoustical boards prepared by impregnating fibre-glass with phenolic resins has absorption coefficient of about 0.67
    D.

     All the above

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    Answer : Option D

    Explanation :

    Explanation Not Provided

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