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Environmental Engineering in CE

Environmental Engineering in CE
COD of raw municipal sewage may be in the range of about __________ mg/litre.

5-10
1-2
1500-2500
90-120

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Environmental Engineering in CE
Global warming may result in

All of these
Cyclone
Decrease in food productivity
Flood

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Environmental Engineering in CE
TLV of aldrin in public water supply system is about __________ μg/litre.

357
0.5
1097
17

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Environmental Engineering in CE
Which of the following is the most severe air pollutant?

NOx
CO
SO₂
Hydrocarbons

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Environmental Engineering in CE
Which of the following acts as a natural source of air pollution?

None of these
Volcanic eruption
Deforestation
Forest fire

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Environmental Engineering in CE
Which of the following is the common pollutant emitted from metallurgical smelters, thermal power plant and cement plants?

NOx
F
SO₂
Hg

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