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Environmental Engineering in CE

Environmental Engineering in CE
Aerosols present in atmospheric air may be

Negatively charged
Positively charged
Neutral
Combination of all A, B & C

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Environmental Engineering in CE
Presence of nitrogen and phosphorous in waste water discharged into lakes and ponds causes

Turbidity
Undesirable plant growth
Foaming
Odour nuisances

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Environmental Engineering in CE
Hardy cross method of analysis of distribution system(i) Involves successive trials(ii) Takes economic aspects into account(iii) Is time consuming

(i) and (ii)
All are correct
Only (i)
(i) and (iii)

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Environmental Engineering in CE
Polyvinyl chloride containers are not suitable for storing

Metallic powder
None of these
Foodstuffs
Woolen clothes

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Environmental Engineering in CE
Most efficient and suitable dust removal equipment for removal of flyash from flue gas in a thermal power plant is the

Gravity settling chamber
Bag filter
Electrostatic precipitator
Cyclone separator

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Environmental Engineering in CE
Tri-sodium phosphate is used in boiler water treatment to reduce

Suspended silica
Caustic embrittlement
Dissolved oxygen
Turbidity

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