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Environmental Engineering in CE

Environmental Engineering in CE
Presence of a certain minimum quantity of flourine is desirable in potable water to prevent

Corrosion
Dental cavities
Scale formation
Water-borne disease

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Environmental Engineering in CE
World environment day is observed every year on the 5th of

June
September
July
December

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Environmental Engineering in CE
The commonest form of iron & manganese found in ground water as pollutant is in the form of their

Chlorides
Bi-carbonates
Sulphides
Carbonates

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Environmental Engineering in CE
Which of the following is a secondary air pollutant?

Dust particles
Nitrogen dioxide
Sulphur dioxide
Photochemical smog

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

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

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Environmental Engineering in CE
Presence of non-biodegradable substances, like alkyl benzene sulphonate (ABS) from the detergents in polluted water stream causes

Fire hazards
Persistent foam
Depletion of dissolved oxygen
Explosion hazards

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MORE MCQ ON Environmental Engineering in CE

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