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Chemical Engineering :: Chemical Engineering Basics

  1. Cold chiesel & hammers are made of

  2. A.
    high speed steel
    B.
    high carbon steel
    C.
    forged steel
    D.
    mild steel

  3. Which of the following does not lower the surface tension of liquids ?

  4. A.
    Fat
    B.
    Soap
    C.
    Detergent
    D.
    Surfactant

  5. __________ property of a material is determined by the Herbert Pendulum device.

  6. A.
    Hardness
    B.
    Tensile
    C.
    Toughness
    D.
    Compressive

  7. Cathodic protection is widely used in controlling corrosion in

  8. A.
    high pressure vessels.
    B.
    marine structure & underground pipelines.
    C.
    overhead fuel gas pipelines.
    D.
    overhead water pipelines.

  9. Methyl orange indicator turns

  10. A.
    orange yellow in alkaline medium.
    B.
    orange yellow in acidic medium.
    C.
    colourless in acidic medium.
    D.
    colourless in basic medium.

  11. Out of the following, the most melleable material is

  12. A.
    copper
    B.
    aluminium
    C.
    wrought iron
    D.
    lead

  13. Addition of silicon to aluminium improves its

  14. A.
    corrosion resistance
    B.
    machinability
    C.
    castability
    D.
    none of these

  15. Which of the following properties of a solid is not dependent on crystal imperfection ?

  16. A.
    Ductility
    B.
    Semiconductiyity
    C.
    Melting point
    D.
    Yield stress

  17. In a good rimming steel

  18. A.
    carbon and silicon should be low.
    B.
    silicon should be low but carbon should be high.
    C.
    both silicon & carbon should be high.
    D.
    silicon should be high but carbon should be low.

  19. "'Dikes' are low height walls made around the storage vessels meant for storing hazardous & inflammable material (e.g., petroleum products). Volume of dikes is equal to (where, V = volume of the storage vessel)

  20. A.
    V
    B.
    V/2
    C.
    2V
    D.
    3V