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Environmental Engineering in CE

Environmental Engineering in CE
Turbidity of water is an indication of the presence of

Suspended inorganic matter
Dissolved solids
Dissolved gases
Floating solids

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Environmental Engineering in CE
Which of the following is an adsorbant used for the removal of SO₂ from gas/air?

Silica gel
Limestone powder or alkalised alumina
Bog iron
Active carbon

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Environmental Engineering in CE
There are thirteen metals which are treated as pollutants. Which of the following metals is not a pollutant?

Lead
Aluminium
Mercury
Arsenic

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Environmental Engineering in CE
TLV of NO₂ & NO exposure for the human being is 5 & 25 ppm respectively. Prolonged exposure of human being to NO₂ causes

Bone disease
Cancer
Bronchitis
Skin disorder

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Environmental Engineering in CE
Which of the following processes is involved in the biochemical treatment of sewage effluents?

Reduction
Fermentation
Oxidation
Dehydration

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Environmental Engineering in CE
Which of the following pollutants is not emitted during volcanic eruptions?

SO₂
CO
Hydrocarbons
H₂S

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