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Environmental Engineering in CE

Environmental Engineering in CE
In large thermal power stations very fine particulates present in flue gas are removed by

Dust catcher
Wet scrubber
Bag filter
Electrostatic precipitators

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Environmental Engineering in CE
The common pollutant generated in chlor-alkali industry and battery manufacture is

Phosphate
None of these
Brine
Mercury

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Environmental Engineering in CE
The biological decomposition of organic substances in wastes controlled conditions is called

Composting
Biological oxidation
Incineration
None of these

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Environmental Engineering in CE
The destruction of water-borne pathogens is termed as disinfection of water. Which of the following is a water disinfectant?

Alkyl benzene sulphonate (ABS)
Chlorine
Alkalis
Benzene hexachloride

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Environmental Engineering in CE
Which of the following is not a natural source of air pollution?

None of these
Photochemical oxidation of organic matter
Biological decay of vegetable matter
Volcanic eruptions and lightening discharges

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Environmental Engineering in CE
Removal of __________ is accomplished by aeration of water.

Dissolved gases
Suspended solids
None of these
Dissolved solids

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