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ENVIRONMENTAL ENGINEERING IN CE

Environmental Engineering in CE
Disinfection of water is done to destroy pathogenic bacteria and thus prevent water-borne diseases. Disinfection of water may be done by the use of

Ultraviolet light for irradiation of water
Ozone and iodine
Chlorine or its compounds
All of these

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Environmental Engineering in CE
The permissible color for domestic water supply is __________ ppm.

20
100
1
1000

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Environmental Engineering in CE
Reingleman chart is used for the evaluation of __________ pollution.

Water
Air
Radioactive
Noise

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Environmental Engineering in CE
Oceans act as sinks for atmospheric gases including carbon dioxide whose concentration in the atmosphere is increased by the

Green house effect
Rain
Vegetation
Forestation

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Environmental Engineering in CE
The Killer gas which caused Bhopal gas tragedy in 1984 was

Sulphur dioxide
Phosgene
Methyl iso-cynate (MIC)
Carbon monoxide

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