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Environmental Engineering in CE

Environmental Engineering in CE
__________ is removed from water by lime-soda process.

Temporary hardness
Foul smell and taste
Permanent hardness
Iron and manganese

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Environmental Engineering in CE
TLV of ammonia, nitrogen dioxide and phenol vapor in air is __________ ppm.

5
2000
100
1000

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Environmental Engineering in CE
TLV of lead for public sewer/waste water is about __________ ppm.

25
150
1
650

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

Nervous system disorder
Blood poisoning
All of these
Anaemia

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Environmental Engineering in CE
Tolerable limit of nitrogen oxides in air is __________ ppm.

5
0.1
1
25

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Environmental Engineering in CE
Fluorosis is caused due to the presence of excessive amount of __________ in drinking water.

Fluoride
Lead
Mercury
Arsenic

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MORE MCQ ON Environmental Engineering in CE

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