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Environmental Engineering in CE

Environmental Engineering in CE
Oceans act as sinks for atmospheric gases including carbon dioxide whose concentration in the atmosphere is increased by the

Green house effect
Rain
Vegetation
Forestation

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Environmental Engineering in CE
Carcinogenic air pollutants cause

Bone decay
Anemia
Asphyxiation (suffocation)
Cancer

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Environmental Engineering in CE
Tolerable limit of nitrogen oxides in air is __________ ppm.

25
0.1
1
5

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Environmental Engineering in CE
Threshold limit value (TLV) i.e., the maximum permissible safe limit of phosgene gas which Hitler used to use to kill his enemies in 'gas chamber' is about __________ ppm.

10-100
100-1000
100-200

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Environmental Engineering in CE
Aerodynamic noise resulting from turbulent gas flow is the most prevalent source of valve noise in fluid ilow control. It is caused due to

Shear forces
Both A & B
Neither A nor B
Reynold stresses

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

Chloralkali
Sulphuric acid
Nitric acid
Iron & steel

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