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

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

13.  Spirit varnish consists of

   A. Spirit and wax

   B. Spirit and shellac

   C. Tarpentine, spirit and wax

   D. Tarpentine, spirit and shellac

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

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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