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Environmental Engineering in CE

Environmental Engineering in CE
H₂S present in gaseous stream can be removed by adsorption on

Bog iron
Silica gel
Limestone powder
Active carbon

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Environmental Engineering in CE
__________ is removed from water by lime-soda process.

Temporary hardness
Foul smell and taste
Iron and manganese
Permanent hardness

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Environmental Engineering in CE
The length of rectangular sedimentation tank should not be more than(Where ‘B’ is the width of the tank)

2B
B
4B
8B

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Environmental Engineering in CE
Industrial workers working in leather tanning & manufacturing units are prone to suffer from

Silicosis
Respirtory ailments (e.g. bronchitis)
Blurred vision
Skin diseases (e.g. dermatities)

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Environmental Engineering in CE
Main pollutants released from petroleum refineries is

CO₂, H₂S & NO₂
SO₃, NO₂ & CO₂
CO₂, NO & SO₃
CO, SO₂ & H₂S

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Environmental Engineering in CE
Presence of high concentration of ozone and smog in atmospheric air causes the

Fading of dye on textiles
Damage of electrical insulator on high tension power line
Embrittlement & decrease of folding resistance of paper
Cracking of rubber products

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MORE MCQ ON Environmental Engineering in CE

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