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Environmental Engineering in CE

Environmental Engineering in CE
COD of raw municipal sewage may be in the range of about __________ mg/litre.

1500-2500
90-120
1-2
5-10

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

Cadmium
Mercury
Hydrogen sulphide
Asbestos

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Environmental Engineering in CE
Which of the following is the most severe air pollutant?

CO
Hydrocarbons
NOx
SO₂

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

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

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Environmental Engineering in CE
Presence of dissolved impurities of __________ is responsible for the red brownish color of water.

Arsenic
Iron & manganese
Carbonates
Bi-carbonates

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Environmental Engineering in CE
A man exposed to excessive noise level in the working environment may suffer from

Nervousness & fatigue
All of these
Hearing loss
Rupture of ear drum

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MORE MCQ ON Environmental Engineering in CE

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