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Environmental Engineering in CE

Environmental Engineering in CE
Nitrogen oxides (NOx) is not produced in the __________ industry.

Any of these
Detergent
Nitric acid making
Nitrogenous fertiliser

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

1
1000
10
250

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Environmental Engineering in CE
Threshold limit value (TLV) means maximum permissible/acceptable concentration. TLV of phosgene in air is about __________ ppm (parts per million).

4.8
0.2
1.2
0.002

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Environmental Engineering in CE
__________ plant emits large amount of SO₂ as an air pollutant.

Iron & steel
Sulphuric acid
Chloralkali
Nitric acid

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Environmental Engineering in CE
The progressive warming up of the earth's surface is mainly due to the

Automobile exhaust
Blanketing effect of CO₂ in the atmosphere
De-forestation
Thickening of ozone layer

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Environmental Engineering in CE
World's worst radioactive pollution was caused by nuclear reactor disaster which occured in

Moscow (U.S.S.R.)
Arizona (U.S.A.)
Pensylvania (U.S.A.)
Chernobyl (undivided U.S.S.R.)

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