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Environmental Engineering in CE

Environmental Engineering in CE
Presence of __________ bacteria in water causes disease like typhoid.

Pathogenic
Non-pathogenic
Anaerobic
Aerobic

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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

Treating in biological oxygen pond
Chemical coagulation
None of these
Chlorination

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Environmental Engineering in CE
Fluorosis (a bone disease) is caused by the presence of high concentration of __________ in atmospheric air.

Hydrogen flouride
Hydrogen sulphides
Nitrogen dioxide
Hydrocarbons

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Environmental Engineering in CE
Ambient noise level can be reduced by __________ decibels by planting trees (like coconut, neem etc.) near public utility buildings (like hospitals & schools).

43961
43832
25-30
15-20

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

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

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Environmental Engineering in CE
Infective bacteria in water is killed by the __________ process.

None of these
Disinfection
Aeration
Sterilisation

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MORE MCQ ON Environmental Engineering in CE

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