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Environmental Engineering in CE

Environmental Engineering in CE
Green house gases blanket/block the infrared radiation from earth's surface to the atmosphere leading to its progressive warming up. Which of the following gases does not exhibit green house effect?

CO₂
SO₃
N₂
H₂

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

Both B & C
Asphyxiation
Shortness of breath
Tuberculosis

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

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

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

September
June
December
July

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Environmental Engineering in CE
__________ plant emits large amount of SO₂ as an air pollutant.

Sulphuric acid
Chloralkali
Nitric acid
Iron & steel

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Environmental Engineering in CE
The destruction of water-borne pathogens is termed as disinfection of water. Which of the following is a water disinfectant?

Chlorine
Benzene hexachloride
Alkalis
Alkyl benzene sulphonate (ABS)

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