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Environmental Engineering in CE

Environmental Engineering in CE
80% less than 200 mesh size particles are called

Grit
Powder
Smoke
Aggregates

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Environmental Engineering in CE
Phenolic water generated in coke ovens & by-product plant attached to an integrated steel plant containing phenol in concentration of less than 100 mg/litre can be removed by

Chemical coagulation
None of these
Treating in biological oxygen pond
Chlorination

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

1
5
25
0.1

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Environmental Engineering in CE
Pick out the one which is not a chemical coagulant.

Aluminium sulphate
Ferrous sulphate
Hydrated lime
Chloramine

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Environmental Engineering in CE
For existence of aquatic life in water, the dissolved oxygen content in it, should not be less than __________ ppm.

1000
500
5
10000

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Environmental Engineering in CE
Disinfection of water is done to remove

Bacteria
Bad taste
Color
Foul odour

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MORE MCQ ON Environmental Engineering in CE

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