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ENVIRONMENTAL ENGINEERING IN CE

Environmental Engineering in CE
For existence of aquatic life in water, the dissolved oxygen content in it, should not be less than __________ ppm.

5
1000
10000
500

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

Vibration damping
Tree plantation
Green house gases
Use of silencers

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Environmental Engineering in CE
Green house gases blanket/block the infrared radiation from earth's surface to the atmosphere leading to its progressive warming up. Which of the following gases does not exhibit green house effect?

N₂
H₂
CO₂
SO₃

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Environmental Engineering in CE
The effect of increase in carbon dioxide level of the atmosphere and its profound effect on our climate is called the

Both B and C
Global warming
Green house effect
Catalytic conversion

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Environmental Engineering in CE
Maximum permissible turbidity in potable water is __________ ppm.

250
1
10
1000

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