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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. Acrylonitrile is mainly used in the __________ industry.

    2. A.
    polymer
    B.
    printing
    C.
    dyeing
    D.
    photographic

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  2. The enzyme which converts starch into the disacharides maltose is

    3. A.
    diastase
    B.
    maltase
    C.
    yeast
    D.
    none of these

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  3. Pick out the false statement pertaining to water treatment.

    4. A.
    Aeration of water is effective in CO2 removal.
    B.
    The zeolite water softening process reduces the hardness of water by not more than 50%.
    C.
    Sodium sulphate or sodium carbonate do not cause hardness in water.
    D.
    Water with pH value less than 7, is acidic.

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  4. Presence of H2S in raw water (to be chlorinated) results in the

    5. A.
    reduced softening capacity of zeolite.
    B.
    increased dosage of chlorine to provide a disinfecting residual in the water.
    C.
    easy removal of its hardness.
    D.
    none of these.

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  5. Contact process of sulphuric acid manufacture

    6. A.
    yields acid of higher concentration than chamber process.
    B.
    yields acids of lower concentration than chamber process.
    C.
    is obsolete.
    D.
    eliminates absorber.

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  6. Fat dispersed in water is exemplified by

    7. A.
    colloids
    B.
    gel
    C.
    butter
    D.
    emulsion

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  7. Maleic anhydride is produced by catalytic oxidation of

    8. A.
    toluene
    B.
    ethyl alcohol
    C.
    naphthalene
    D.
    benzene

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  8. Catalyst used in the oxidation of benzene to produce maleic anhydride is

    9. A.
    V2O5
    B.
    Pt
    C.
    Ni
    D.
    Cr

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  9. Widely used method for the conditioning of boiler feed water is the

    10. A.
    cold lime process
    B.
    coagulation
    C.
    hot-lime soda process
    D.
    sequestration

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  10. Blue colour is imparted to glass by the addition of

    11. A.
    FeSO4
    B.
    PbO
    C.
    CaO
    D.
    NaOH

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