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Chemical Engineering :: Environmental Engineering

Environmental Engineering - Section 1
Environmental Engineering - Section 2
Environmental Engineering - Section 3
Environmental Engineering - Section 4
Environmental Engineering - Section 5
Environmental Engineering - Section 6
Environmental Engineering - Section 7

  1. Higher concentration of nitrogen dioxide in atmospheric air causes

    2. A.
    cancer
    B.
    bronchitis
    C.
    asphyxiation
    D.
    corrosion

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  2. Ozone is

    3. A.
    a primary pollutant.
    B.
    a secondary pollutant.
    C.
    impervious to ultra-violet rays.
    D.
    both (b) and (c)

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  3. The permissible color for domestic water supply is __________ ppm.

    4. A.
    1
    B.
    20
    C.
    100
    D.
    1000

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  4. High noise levels produced during operation of fans and compressors can be reduced by using

    5. A.
    mufflers (silencers).
    B.
    accoustical absorbent.
    C.
    lagging of noisy duct.
    D.
    none of these.

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  5. The Killer gas which caused Bhopal gas tragedy in 1984 was

    6. A.
    phosgene
    B.
    methyl iso-cynate (MIC)
    C.
    carbon monoxide
    D.
    sulphur dioxide

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  6. Aerosols present in atmospheric air may be

    7. A.
    positively charged.
    B.
    negatively charged.
    C.
    neutral.
    D.
    combination of all (a), (b) & (c).

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  7. Ethanolamine is an absorbant used for the removal of __________ from air/gas.

    8. A.
    HF
    B.
    SO2
    C.
    H2S
    D.
    both (b) & (c)

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  8. Which of the following causes death by asphyxiation, if its presence in atmospheric air exceeds maximum allowable concentration (i.e. > 50 ppm) ?

    9. A.
    Benzopyrene
    B.
    Peroxyacyl nitrate
    C.
    Carbon monoxide
    D.
    Sulphur dioxide

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  9. __________ plant emits large amount of SO2 as an air pollutant.

    10. A.
    Nitric acid
    B.
    Sulphuric acid
    C.
    Chloralkali
    D.
    Iron & steel

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  10. Noise pollution level in a chemical plant is expressed in

    11. A.
    roentgen
    B.
    decibel
    C.
    hertz
    D.
    none of these

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