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Civil Engineering :: Building Materials

  1. Blister steel

  2. A.

    is obtained by cementation process

    B.

    is full of fissures and cavities

    C.

    can not be forged

    D.

    can be easily welded

    E.
    all the above.

  3. The most important constituent of varnish, is

  4. A.

    drier

    B.
    solvent
    C.

    resin

    D.

    all the above.


  5. A ferrous metal is

  6. A.

    cast iron

    B.

    wrought iron

    C.

    steel

    D.

    all the above.


  7. For making fly-ash building bricks, the following mix of fly-ash, sand and lime, is

  8. A.

    80 : 13 : 7

    B.

    70 : 20 : 10

    C.

    60 : 35 : 5

    D.

    none of these.


  9. Pick up the correct statement from the following:

  10. A.

    Lime is available in free state

    B.

    Lime is available by dissolving calcium carbonate in water

    C.

    Lime is available by calcining calcium carbonate at 900°C

    D.

    Lime is nothing but calcium chloride

    E.

    None of these.


  11. Water paint is a

  12. A.

    white wash

    B.

    colour wash

    C.

    whiting

    D.

    distemper

    E.

    all the above.


  13. Seasoning of timber is done

  14. A.

    to make it water proof

    B.

    to paint its surface

    C.

    to increase its temperature

    D.

    to remove water.


  15. The specific gravity of marble, is

  16. A.

    2.50

    B.

    2.60

    C.

    2.66

    D.

    2.72

    E.

    3.00.


  17. The rocks having alumina or clay as their major constituents, are known as

  18. A.

    siliceous rocks

    B.

    argillaceous rocks

    C.

    calcareous rocks

    D.

    sedimentary rocks

    E.

    igneous rocks.


  19. The curved swellings from the growth of layers or wounds left after branches are cut off in an irregular manner, are known as

  20. A.

    knots

    B.

    rindgalls

    C.

    burls

    D.

    none of these.