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Chemical Engineering :: Chemical Process

  1. Out of the following processes of paper pulp manufacture, the maximum corrosion problem in digestion & handling equipments is encountered in the __________ process.

  2. A.

     Mechanical

    B.

     Sulphate/kraft

    C.

     Sulphite

    D.

     Neutral sulphite semi-chemical

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  3. Styrene butadiene rubber (SBR) is

  4. A.

     A natural rubber

    B.

     A synthetic polymer

    C.

     A synthetic monomer

    D.

     Another name of silicone rubber

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  5. Starting material for the production of styrene butadiene rubber (SBR) is

  6. A.

     Ethyl alcohol

    B.

     Ethylene

    C.

     Both A & B

    D.

     Neither A nor B

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  7. Permanent hardness of water is due to the presence of calcium & magnesium

  8. A.

     Bi-carbonates

    B.

     Sulphates & chlorides

    C.

     Carbonate

    D.

     None of these

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  9. Riboflavin is a/an

  10. A.

     Vitamin

    B.

     Analgesic drug

    C.

     Anaesthetics

    D.

     Anti-malarial drug

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  11. Yellow glycerine is made into white, using

  12. A.

     Activated carbon

    B.

     Diatomaceous earth

    C.

     Bauxite

    D.

     Bentonite

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  13. Percentage of glycerene present in the spent lye obtained during soap manufacture is about

  14. A.

     0.5

    B.

     5

    C.

     20

    D.

     35

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  15. Gun powder, which is an explosive comprises of charcoal, sulphur and

  16. A.

     Glycerene

    B.

     Salt petre

    C.

     Nitro glycerene

    D.

     Dynamite

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  17. Adipic acid is an intermediate in the manufacture of

  18. A.

     Perspex

    B.

     Nylon-66

    C.

     Polystyrene

    D.

     Bakelite

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  19. Proximate analysis of coal determines its __________ content.

  20. A.

     Moisture, ash, sulphur & volatile matter

    B.

     Moisture & volatile matter

    C.

     Moisture, sulphur, nitrogen & fixed carbon

    D.

     None of these

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