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Environmental Engineering in CE

Environmental Engineering in CE
Which of the following is a manmade source of air pollution?

All of these
Bacterial action in soil and swamp areas
Automobile exhaust
Forest fire

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Environmental Engineering in CE
Direct reaction of unsaturated hydrocarbons with either NO or NO₂ produces an eye irritating pollutant compound known as

Peroxy acetyl nitrate (PAN) or methyl nitrile
Photochemical smog
Benzopyrene
Poly acrylonitrile

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Environmental Engineering in CE
Pick out the one which is not a chemical coagulant.

Aluminium sulphate
Ferrous sulphate
Chloramine
Hydrated lime

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Environmental Engineering in CE
Inhalation of lead compounds present in the automobile exhausts (using leaded petrol) causes

Blood poisoning
Nervous system disorder
All of these
Anaemia

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Environmental Engineering in CE
Main pollutants released from iron & steel industry is

SO₃, NO₂ & CO₂
CO₂, H₂S & NO₂
H₂S, NO & SO₃
CO, CO₂ & SO₂

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Environmental Engineering in CE
Smog is

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

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