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Environmental Engineering in CE

Environmental Engineering in CE
Arsenic pollutant is not generated in____industries.

Any of these
Tanneries
Beverages
Glass & ceramic

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Environmental Engineering in CE
Lead exhausted in the atmosphere by automobiles using leaded petrol (i.e. tetraethyl lead for improving octane number) is a lethal air pollutant which causes

Paralysis of muscles & loss of appetite
Nervous depression
All of these
Gastritis & diarrhea

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Environmental Engineering in CE
Which of the following is a green house gas other than CO₂ ?

Nitrous oxide
All of these
Chlorofluro carbons (CFC)
Methane

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Environmental Engineering in CE
__________ can not control the noise pollution.

Green house gases
Vibration damping
Tree plantation
Use of silencers

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Environmental Engineering in CE
Death may occur, when SO₂ concentration in atmospheric air exceeds __________ ppm.

400
100
20
200

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Environmental Engineering in CE
Oilish impurities present the effluent discharged from the electroplating industry is normally not removed by

Centrifugation
Chemical coagulation
Ultrafiltration
Floatation & skimming

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