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Environmental Engineering in CE

Environmental Engineering in CE
Fresh domestic sewage is __________ in color.

Black
Dark brown
Red
Grey

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Environmental Engineering in CE
Which of the following is the most major constituents of air pollutants?

Carbon monoxide
Oxides of nitrogen
Oxides of sulphur
Hydrogen sulphide

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Environmental Engineering in CE
Oilish impurities present the effluent discharged from the electroplating industry is normally not removed by

Chemical coagulation
Floatation & skimming
Centrifugation
Ultrafiltration

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Environmental Engineering in CE
Permissible safe limit (TLV) of __________ toxic gas is 100-1000 parts per million (ppm).

Moderately
Very extremely
Highly
Extremely

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Environmental Engineering in CE
Which of the following plants does not emit appreciable amount of SO₂ in atmosphere?

Petroleum refinery
Nitric acid plant
Sulphuric acid plant
Thermal power plant

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Environmental Engineering in CE
Infective bacteria in water is killed by the __________ process.

Disinfection
Aeration
Sterilisation
None of these

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MORE MCQ ON Environmental Engineering in CE

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