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Chemical Engineering :: Chemical Process

  1. Claude process of gas liquefaction employs

  2. A.

     Merely compression of gas beyond its critical pressure

    B.

     Joule-Thomson expansion cooling

    C.

     Heat exchange with colder stream

    D.

     Adiabatic expansion against a piston or in a turbine


  3. Linde process of gas liquefaction employs

  4. A.

     Exchange of heat with colder stream

    B.

     Adiabatic expansion through a throttle valve (Joule-Thomson expansion)

    C.

     Adiabatic expansion against a piston or in a turbine

    D.

     Merely compressing the gas beyond its critical pressure


  5. Production of alcohol by fermentation of molasses is an __________ process.

  6. A.

     Anaerobic

    B.

     Aerobic

    C.

     Endothermic

    D.

     Both B and C


  7. Nickel is not used as a catalyst in the __________ reaction.

  8. A.

     Shift conversion

    B.

     Oil hydrogenation

    C.

     Steaming reforming of naphtha

    D.

     Ammonia cracking/dissociation


  9. Main constituents of natural rubber is

  10. A.

     Polystyrene

    B.

     Polyisoprene

    C.

     Polybutadiene

    D.

     Polychloroprene


  11. The type of high refractive index glass used in optical instruments is __________ glass.

  12. A.

     Pyrex

    B.

     Flint

    C.

     Crookes

    D.

     None of these


  13. Sucrose is a

  14. A.

     Monosacchride

    B.

     Disacchride

    C.

     Polysacchride

    D.

     None of these


  15. Platinum catalyst used in the earlier days of sulphuric acid manufacture by contact process suffers from the drawback like

  16. A.

     High cost

    B.

     Fragile nature

    C.

     Easy poisoning tendency

    D.

     All of the above


  17. Synthesis gas is a mixture of

  18. A.

     CO and H₂

    B.

     N₂ and H₂

    C.

     H₂, CH₄ and CO

    D.

     CO₂ and H₂


  19. Systemic insecticides

  20. A.

     Are absorbed throughout the plant

    B.

     Kill insects following external bodily contact

    C.

     Are stomach poisons

    D.

     Emit poisonous vapour