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Environmental Engineering in CE

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

Detergent
Nitric acid making
Any of these
Nitrogenous fertiliser

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Environmental Engineering in CE
Main pollutant present in automobile exhaust is

CO
Hydrocarbons
CO₂
NO

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Environmental Engineering in CE
Radioactive substances present in the polluted water stream can be removed by

Biological oxygen treatment
Coagulation and filtration
None of these
Adsorption in ion exchange materials

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

1
250
10
1000

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Environmental Engineering in CE
'Safe limit' called Threshold Limit Value (TLV) of carbon monoxide in atmospheric air is < 50 ppm. The main source of carbon monoxide pollutant in air is the

Automobiles exhaust
Burning of domestic fuel
Industrial chimney exhaust
Photochemical reaction in polluted atmosphere

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Environmental Engineering in CE
Reinglemann chart is used for the measurement of the

Flue gas temperature
Exhaust gas density
Combustibles present in automobile exhaust
Smoke density from a chimey

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