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Environmental Engineering in CE

Environmental Engineering in CE
Exposure to small amount of __________ results in high blood pressure & heart disease in human beings.

Mercury
Hydrogen sulphide
Cadmium
Asbestos

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Environmental Engineering in CE
During sewage treatment, the sewage is subjected to __________ treatment in Imhoff tank.

Sedimentation
Filtration
Both B and C
Digestion

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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

Carbonates
Bi-carbonates
Chlorides
Sulphides

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Environmental Engineering in CE
Exposure to SO₂ containing chimney gases results in the

Reduction in strength of leather & cloth
All of these
Acceleration of corrosion rates of metals
Increased drying & hardening time of paints

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Environmental Engineering in CE
Biological oxidation ponds remove organic matters present in the polluted water by

Aerobic oxidation
Both A & B
Using the activities of bacteria and other micro organisms
Neither A nor B

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

Carbon monoxide
Hydrogen sulphide
Oxides of sulphur
Oxides of nitrogen

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MORE MCQ ON Environmental Engineering in CE

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