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Environmental Engineering in CE

Environmental Engineering in CE
The lowest layer of atmosphere is known as the

Stratosphere
Ionosphere
Troposphere
None of these

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Environmental Engineering in CE
Presence of volatile compounds like gasoline, oil, alcohol, ether etc. in municipal sewers may cause

Explosion
Undesirable plant growth
Corrosion
Non biodegradable foam

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Environmental Engineering in CE
Thermal pollution of water increases its toxicity and oxidation of oxygen demanding waste besides favouring bacterial growth. A rise in water temperature by 10°C, doubles the toxic effects of __________ present in it.

Coal ash
Ortho-xylene
Potassium cyanide
None of these

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Environmental Engineering in CE
Arsenic pollutant is not generated in____industries.

Glass & ceramic
Any of these
Tanneries
Beverages

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Environmental Engineering in CE
The main type of sludge gas evolved during sewage treatment in Imhoff tank is

H₂
CH₄
CO
CO₂

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Environmental Engineering in CE
Brown spots in fabrics will be caused by washing with water containing large amount of .

Iodine
Zinc
Bromine
Iron

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