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Environmental Engineering in CE

Environmental Engineering in CE
Reingleman chart is used for the evaluation of __________ pollution.

Noise
Radioactive
Air
Water

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Environmental Engineering in CE
Which of the following processes is involved in the biochemical treatment of sewage effluents?

Fermentation
Reduction
Dehydration
Oxidation

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Environmental Engineering in CE
Noise pollution level in a chemical plant is expressed in

Roentgen
Hertz
None of these
Decibel

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Environmental Engineering in CE
Which of the following pollutants is absent in the emissions from a fertiliser plant ?

NO₂
NH₃
SO₂ & SO₃
CO

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Environmental Engineering in CE
Smog is

A solid particle e.g. flyash
A liquid particle resulting from vapor condensation
Nothing but black smoke
A combination of smoke and fog

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Environmental Engineering in CE
Which of the following is not a natural source of air pollution?

Biological decay of vegetable matter
Volcanic eruptions and lightening discharges
Photochemical oxidation of organic matter
None of these

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