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Chemical Engineering :: Chemical Process

Chemical Process - Section 1
Chemical Process - Section 2
Chemical Process - Section 3
Chemical Process - Section 4
Chemical Process - Section 5
Chemical Process - Section 6
Chemical Process - Section 7
Chemical Process - Section 8
Chemical Process - Section 9
Chemical Process - Section 10
Chemical Process - Section 11
Chemical Process - Section 12
Chemical Process - Section 13
Chemical Process - Section 14
Chemical Process - Section-15

  1. Fish contains about __________ percent oil.

    2. A.
    5
    B.
    10
    C.
    20
    D.
    35

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  2. The main aim behind cooling the digested chip at the bottom portion of the digestor by injecting cold black liquor is to

    3. A.
    avoid mechanical weakening of fibre.
    B.
    remove lignin by way of crystallisation.
    C.
    increase the cellulose content.
    D.
    none of these.

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  3. Polymethyl methacrylate (PMMA) is known as

    4. A.
    bakelite
    B.
    teflon
    C.
    perspex
    D.
    nylon-6

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  4. Coloured glass is obtained by mixing of colored salts. Addition of __________ oxide is done to impart greenish blue color to the glass.

    5. A.
    chromium
    B.
    arsenic
    C.
    copper
    D.
    mangnese

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  5. Percentage of alcohol in beer may be around __________ percent.

    6. A.
    2-8
    B.
    18-23
    C.
    27-32
    D.
    1-4

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  6. Which of the following is an ore of iron ?

    7. A.
    Galena
    B.
    Chalcopyrite
    C.
    Hematite
    D.
    Bauxite

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  7. Which of the following may be viewed as a catalyst in the manufacture of soda ash by Solvay process ?

    8. A.
    NH3
    B.
    NaCl
    C.
    CaO
    D.
    Coke

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  8. High purity nitrogen is used in

    9. A.
    making protective gas (95% N2 + 5% H2) for annealing of cold rolled steel strip coils.
    B.
    fire fighting purposes.
    C.
    both (a) & (b).
    D.
    neither (a) nor (b).

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  9. Commercial production of soda ash by Solvay process requires limestone, __________ as raw materials.

    10. A.
    coke and sand
    B.
    brine and coal
    C.
    coke and caustic soda
    D.
    none of these

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  10. Naphthalene is removed from coke oven gas by

    11. A.
    adsorbing on palladium.
    B.
    absorbing in ethanolamine.
    C.
    scrubbing with wash oil.
    D.
    passing it through electrostatic precipitator.

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