Home / Civil Engineering / Building Materials :: section-9

Civil Engineering :: Building Materials

  1. Plywood is normally available

  2. A.

     1 mm thick

    B.

     2 mm thick

    C.

     2 to 3 mm thick

    D.

     3 mm to 4 mm thick


  3. Smith's test of stones is performed to find out

  4. A.

     The presence of soluble matter of stone

    B.

     The compressive strength of the stone

    C.

     The hardness of the stone

    D.

     The toughness of the stone


  5. Refractory bricks resist

  6. A.

     High temperature

    B.

     Chemical action

    C.

     Dampness

    D.

     All the above


  7. Knots in timber are

  8. A.

     Defects caused by crushing fibres

    B.

     Splits radiating from the centre

    C.

     Speckled strains

    D.

     Signs of branches cut off


  9. Crushing strength of a good building stone should be more than

  10. A.

     50 MPa

    B.

     100 MPa

    C.

     150 MPa

    D.

     200 MPa


  11. In brick masonry the bond produced by laying alternate headers and stretchers in each course is known as

  12. A.

     English bond

    B.

     double flemish bond

    C.

     zigzag bond

    D.

     single flemish bond


  13. The vehicle used in case of enamel paints is usually

  14. A.

     Linseed oil

    B.

     Water

    C.

     Varnish

    D.

     None of the above


  15. Which one of the following is used for preparing porcelain?

  16. A.

     Clay

    B.

     Feldspar

    C.

     Quartz

    D.

     All of these


  17. Which of the following gradients exerts maximum influence on properties of steel?

  18. A.

     iron

    B.

     carbon

    C.

     manganese

    D.

     sulphur


  19. Sewer pipes are made of

  20. A.

     Earthen ware

    B.

     Stone ware

    C.

     Refractory clay

    D.

     All the above