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Environmental Engineering in CE

Environmental Engineering in CE
The maximum CO₂ is emitted into the atmosphere by

Combustion
Urea
Trees
Biomass burning

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

25
1
0.1
5

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Environmental Engineering in CE
During sewage treatment, the sewage is subjected to __________ treatment in Imhoff tank.

Sedimentation
Both B and C
Digestion
Filtration

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Environmental Engineering in CE
Water effluent generated in printing industry is decolourised by

Adsorption
Electrolytic decomposition
Reverse osmosis
Ion exchange technique

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Environmental Engineering in CE
Noise level inside a jet air liner in normal flight is about __________ decibels.

80
100
125
145

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Environmental Engineering in CE
The commonest form of iron & manganese found in ground water as pollutant is in the form of their

Chlorides
Carbonates
Sulphides
Bi-carbonates

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MORE MCQ ON Environmental Engineering in CE

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