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Civil Engineering :: Building Materials

  1. Bitumen emulsion is

  2. A.

     A liquid containing bitumen in suspension

    B.

     A paint

    C.

     Used as anti-corrosive paint

    D.

     All the above


  3. The steel used for the manufacture of rails, is

  4. A.

     Bessemer steel

    B.

     Mild steel

    C.

     Cast steel

    D.

     Stainless steel


  5. The process of manufacturing steel by heating short lengths of wrought iron bars mixed with charcoal in fire clay crucibles and collecting the molten iron into moulds, is known as

  6. A.

     Cementation process

    B.

     Crucible process

    C.

     Bessemer process

    D.

     Open hearth process


  7. The most durable varnish is

  8. A.

     Water varnish

    B.

     Spirit varnish

    C.

     Turpentine varnish

    D.

     Oil varnish


  9. The rocks which are formed due to cooling of magma at a considerable depth from earth's surface are called

  10. A.

     Plutonic rocks

    B.

     Hypabyssal rocks

    C.

     Volcanic rocks

    D.

     Igneous rocks


  11. The rocks which are formed due to cooling of magma at a relatively shallow depth from the earth's surface are called

  12. A.

     Plutonic rocks

    B.

     Hypabyssal rocks

    C.

     Volcanic rocks

    D.

     Igneous rocks


  13. The rocks which are formed due to pouring of magma at the earth's surface are called

  14. A.

     Plutonic rocks

    B.

     Hypabyssal rocks

    C.

     Volcanic rocks

    D.

     Igneous rocks


  15. Turpentine oil is used in paints as

  16. A.

     Thinner

    B.

     Vehicle

    C.

     Base

    D.

     Drier


  17. Linseed oil is used in paints as

  18. A.

     Thinner

    B.

     Vehicle

    C.

     Base

    D.

     Drier


  19. The pigment used in paints for corrosive resistance, is

  20. A.

     White lead

    B.

     Ferrous oxide

    C.

     Zinc white

    D.

     Red lead