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Environmental Engineering in CE

Environmental Engineering in CE
__________ is removed from water by lime-soda process.

Iron and manganese
Permanent hardness
Temporary hardness
Foul smell and taste

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

1
25
0.1
5

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Environmental Engineering in CE
Reinglemann chart is used for the measurement of the

Smoke density from a chimey
Flue gas temperature
Combustibles present in automobile exhaust
Exhaust gas density

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Environmental Engineering in CE
Maximum permissible concentration (i.e. TLV) of DDT in public water supply system is __________ micro gram (μ g)/litre.

332
2
1050
42

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Environmental Engineering in CE
Carbonaceous particles having size less than 1 μm are called

Grit
Aerosols
Aggregates
Smoke

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

Turbidity
Foaming
Odour nuisances
Undesirable plant growth

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MORE MCQ ON Environmental Engineering in CE

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