Building Materials - Building Materials objective questions and answers


11.  Material lining used in making sound proof chamber is


   A. Polystyrene

   B. Wrought iron

   C. Stainless steel

   D. Titanium


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A. Polystyrene

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12.  Which of the following material is not associated directly or indirectly with building construction ?


   A. Carborandum

   B. Stetite

   C. Thermoset plastic

   D. Pumic stone


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B. Stetite

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13.  Spirit varnish consists of


   A. Spirit and wax

   B. Spirit and shellac

   C. Tarpentine, spirit and wax

   D. Tarpentine, spirit and shellac


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B. Spirit and shellac

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14.  The specific gravity of sand stone is


   A. 1.1 to 1.8

   B. 1.8 to 2.65

   C. 2.65 to 2.95

   D. 2.95 to 3.4


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C. 2.65 to 2.95

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15.  For R.C.C. construction, the maximum size of coarse aggregate is limited to


   A. 10 mm

   B. 15 mm

   C. 20 mm

   D. 25 mm


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D. 25 mm

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