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Environmental Engineering in CE

Environmental Engineering in CE
Growth of __________ is promoted by the presence of manganese in water.

Mosquitoes
Algae
Files
Micro-organisms

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Environmental Engineering in CE
Peroxyacyl nitrate (PAN), a pollutant is found in the

Exhaust of nitric acid plant
Automobile exhaust
Flue gas of coal based power plant
Exhaust of sulphuric acid plant

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Environmental Engineering in CE
The major reason of hydrodynamic noise (i.e., noise resulting from liquid flow) is

Cavitation
Fluctuation in liquid flow
Pipe vibrations
Boundary layer separation

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Environmental Engineering in CE
Oil and grease present in an emulsified state in waste water discharged from industries can be removed by

Chlorination
Settling out using chemical reagents
Skimming off
Biological oxidation

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Environmental Engineering in CE
Water effluent generated in printing industry is decolourised by

Electrolytic decomposition
Reverse osmosis
Adsorption
Ion exchange technique

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Environmental Engineering in CE
Hazardous/polluting chemical industries should have an 'exclusion zone' with a green belt and general public access prohibited around it, covering a radius of ____ metres.

400
100
1000
4000

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