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Environmental Engineering in CE

Environmental Engineering in CE
Nitrogen oxides (NOx) is not produced in the __________ industry.

Detergent
Any of these
Nitrogenous fertiliser
Nitric acid making

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Environmental Engineering in CE
Moist atmospheric air at high temperature (e.g., in summer) having high concentration of sulphur dioxide causes

Fading of dyes on textiles
Corrosion, tarnishing & soiling of metals
All of these
Reduced strength of textiles

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Environmental Engineering in CE
COD of raw municipal sewage may be in the range of about __________ mg/litre.

90-120
1500-2500
5-10
1-2

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Environmental Engineering in CE
Radioactive solid nuclear wastes are disposed off by

High temperature incineration
Pathological incineration
Pyrolysis
Underground burial in concrete containers

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Environmental Engineering in CE
Which of the following is the common pollutant emitted from metallurgical smelters, thermal power plant and cement plants?

Hg
NOx
SO₂
F

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Environmental Engineering in CE
Water filtration rate in a rapid sand filter ranges from __________ kilolitres/m²/hr.

0.1 to 1
3 to 6
15 to 20
10 to 15

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