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Civil Engineering :: Building Materials

  1. The most important constituent of an oil paint, is

  2. A.

    thinner

    B.

    vehicle

    C.

    pigment

    D.
    base
    E.

    all the above.


  3. Granite mainly composed of quartz and felsper particles, is obtained from

  4. A.

    sedimentary rocks

    B.

    metamorphic rocks

    C.

    igneous rocks

    D.

    all the above.


  5. Bullet proof glass is made of thick glass sheet sandwiched by a layer of

  6. A.

    steel

    B.

    stainless steel

    C.

    high test plastic

    D.

    chromium plate.


  7. Pig iron obtained from the furnance which is properly provided with fuel at a very high temperature, is called

  8. A.

    Bessemer pig

    B.

    Grey or foundry pig

    C.

    White or forge pig

    D.

    Mottled pig

    E.

    None of the above.


  9. Refractory bricks are

  10. A.

    neutral refractory bricks

    B.

    acid refractory bricks

    C.

    basic refractory bricks

    D.

    all the above.


  11. Porcelain is used as :

  12. A.

    sanitary wares

    B.

    electric insulators

    C.

    storage vessels

    D.

    reactor chambers

    E.

    All of the above.


  13. Durability of building stone is affected by its

  14. A.

    chemical composition

    B.

    texture

    C.

    resistance to atmosphere

    D.

    location in structure

    E.

    all the above.


  15. Magnese steels

  16. A.

    are non-magnetic

    B.

    possess high electrical resistance

    C.

    possess low coefficient of expansion

    D.

    are used for the manufacture of rails

    E.

    all the above.


  17. Pick up the metal refractory from the following:

  18. A.

    Molyblendum

    B.

    Tungsten

    C.

    Zicronium

    D.

    All of these.


  19. According to IS 399-1963, the weight of the timber is specified at

  20. A.

    8% moisture content

    B.

    10% moisture content

    C.

    12% moisture content

    D.

    14% moisture content.