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Chemical Engineering :: Chemical Engineering Basics-2

  1. Which of the following gases cause global warming?

  2. A.

     Carbon monoxide

    B.

     Carbon dioxide

    C.

     Nitrogen

    D.

     Ozone


  3. Principal alloying element in Elinvar (used for making hair springs for watches) is

  4. A.

     Copper

    B.

     Aluminium

    C.

     Nickel

    D.

     Zinc


  5. The only suitable method for hardening the low carbon steel is case hardening. Which of the following is a case hardening process?

  6. A.

     Cyaniding

    B.

     Sheardising

    C.

     Spherodising

    D.

     None of these


  7. The life of a ball bearing is inversely proportional to

  8. A.

     (load)1

    B.

     (load)2

    C.

     (load)3

    D.

     (load)0.33


  9. Boiler rating is normally done in terms of

  10. A.

     Steam temperature & pressure

    B.

     Steam output (tons/hr)

    C.

     Heat transfer rate (kcal/hr)

    D.

     Heat transfer area (m²)


  11. Which of the following is not an ore of aluminium?

  12. A.

     Troosite

    B.

     Kaolin

    C.

     Alunite

    D.

     Cryolite


  13. Which of the following is not an ore of aluminium?

  14. A.

     Troosite

    B.

     Kaolin

    C.

     Alunite

    D.

     Cryolite


  15. Matte smelting is used in the extraction of

  16. A.

     Lead

    B.

     Zinc

    C.

     Aluminium

    D.

     Copper


  17. Which of the following material handling equipments is not suitable for moving materials in varying paths?

  18. A.

     Hand trolley

    B.

     Belt conveyor

    C.

     Crane

    D.

     Truck


  19. Earing is a defect found in steels after the following metal working operation (s).

  20. A.

     Deep drawing

    B.

     Rolling

    C.

     Extrusion

    D.

     Wire drawing