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Chemical Engineering :: Chemical Engineering Basics-2

  1. Stellite is a __________ material.

  2. A.

     Ferrous

    B.

     Ceramic

    C.

     Cemented carbide

    D.

     Non ferrous cast alloy cutting tool


  3. Maximum hardenability of steel depends upon its

  4. A.

     Chemical composition

    B.

     Carbon content

    C.

     Grain size

    D.

     Alloying elements content


  5. Absolute zero, pressure will occur, when the molecular momentum of the system becomes zero. A liquid will cease to exist as liquid at

  6. A.

     High vacuum

    B.

     Zero pressure

    C.

     0°K

    D.

     Earth


  7. Sewage is not an excellent medium for the growth of

  8. A.

     Aquatic creatures

    B.

     Protozoa

    C.

     Virus

    D.

     Pathogenic bacteria


  9. Which of the following is not an ore of zinc?

  10. A.

     Cerrusite

    B.

     Franklinite

    C.

     Calamine

    D.

     Troosite


  11. Crystallisation of polymers is an undesirable property. Crystallisation of celluloid is prevented by adding

  12. A.

     Glycerol

    B.

     Nitro cellulose

    C.

     Camphor

    D.

     None of these


  13. Semi-conductors normally employ __________ bonding.

  14. A.

     Co-ordinate

    B.

     Ionic

    C.

     Covalant

    D.

     Metallic


  15. Out of the following materials, the one which generally exhibits an yield point is

  16. A.

     Hard bronze

    B.

     Soft brass

    C.

     Cold rolled mild steel

    D.

     Hot rolled mild steel


  17. __________ is used for tying the steel coloumns to concrete foundation.

  18. A.

     Grouting

    B.

     Eyebolt

    C.

     Anchor bolts

    D.

     Refractory castables


  19. Which of the following has rotten eggy smell?

  20. A.

     Hydrogen sulphide

    B.

     Styrene

    C.

     Phenol

    D.

     Dimethyl amine