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Chemical Engineering :: Chemical Engineering Basics-2

  1. The ultimate strength in tension for steel is __________ times the ultimate strength in shear.

  2. A.

     0.5

    B.

     0.9

    C.

     1.5

    D.

     2.5


  3. Tesla metre per ampere (T. m/A) is the unit for the measurement of

  4. A.

     Magnetic succeptibility

    B.

     Magnetic moment

    C.

     Permeability of free space

    D.

     Flux density


  5. Sheardising process is used for

  6. A.

     Surface coating

    B.

     Heat treatment of high speed steel

    C.

     Cold working on metals

    D.

     None of these


  7. Malleabilisation heat treatment is performed on

  8. A.

     Cast steel

    B.

     Grey cast iron

    C.

     White cast iron

    D.

     Spheroidal graphite cast iron


  9. Tin based white metals are used, where bearings are subjected to

  10. A.

     High pressure & load

    B.

     Low pressure & load

    C.

     High temperature

    D.

     Large surface wear


  11. Which of the following materials does not form adherent oxide film on surface?

  12. A.

     Copper

    B.

     Nickel

    C.

     Aluminium

    D.

     Gold & silver


  13. Broaching tools are usually made of

  14. A.

     Cermets

    B.

     High speed steel

    C.

     Tungsten carbide

    D.

     Stellite


  15. Hooke's law

  16. A.

     Applies to elastic deformation

    B.

     Applies beyond limit of proportionality in stress-strain curve

    C.

     States that stress is inversely proportional to strain upto elastic limit

    D.

     Noneofthese


  17. __________ is a special constituent of chlorophyll without which photosynthesis is not possible.

  18. A.

     Calcium

    B.

     Nitrogen

    C.

     Phosphorous

    D.

     Hydrogen


  19. Air intake for an air compressor should be preferably taken from

  20. A.

     A site, where cooling towers are located nearby

    B.

     A site, where open coal yard in located nearby

    C.

     An air conditioned room maintained at a temperature of 18°C

    D.

     An outside atmosphere at 10°C