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Environmental Engineering in CE

Environmental Engineering in CE
Which of the following plants does not emit appreciable amount of SO₂ in atmosphere?

Thermal power plant
Sulphuric acid plant
Petroleum refinery
Nitric acid plant

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Environmental Engineering in CE
Inhalation of silica dust by human being causes

Shortness of breath
Asphyxiation
Both B & C
Tuberculosis

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Environmental Engineering in CE
Coal washing waste water containing about 3% suspended solids (comprising of clay, slate, stone etc.) is treated for solid particles removal

In vacuum filter
In clarifiers
By chemical coagulation
In sedimentation tanks equipped with mechanical scrapper

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Environmental Engineering in CE
Which of the following is a green house gas other than CO₂ ?

Methane
Chlorofluro carbons (CFC)
All of these
Nitrous oxide

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Environmental Engineering in CE
Which of the following is an adsorbant for removal of nitrogen oxides from gas/air?

Bog iron (iron oxide)
Pulverised limestone
Silica gel
Active carbon

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Environmental Engineering in CE
Iron & manganese present in the polluted water is removed by

Oxidation followed by settling & filtration
Chlorination only
Simple filtration
Chemical coagulation

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MORE MCQ ON Environmental Engineering in CE

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