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Environmental Engineering in CE

Environmental Engineering in CE
Presence of __________ hardness is responsible for the temporary hardness in water.

Sulphate
Choride
Calcium
Carbonate

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

Anaerobic
Pathogenic
Aerobic
Non-pathogenic

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Environmental Engineering in CE
The type of bacteria which is active in trickling filter during biological treatment of sewage is the __________ bacteria.

Aerobic
Saphrophytic
Anaerobic
Parasitic

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

Disinfection
Aeration
Sterilisation
None of these

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

Aggregates
Aerosols
Grit
Smoke

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Environmental Engineering in CE
The per capital consumption of a locality is affected by(i) Climatic conditions(ii) Quality of water(iii) Distribution pressure

Only (i)
Both (i) and (ii)
Both (i) and (iii)
All (i), (ii) and (iii)

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