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Environmental Engineering

Environmental Engineering
The characteristics of fresh and septic sewage respectively are

Both alkaline
Both acidic
Alkaline and acidic
Acidic and alkaline

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Environmental Engineering
The treatment of water with bleaching powder is known as

Super chlorination
Pre-chlorination
Hypo-chlorination
De-chlorination

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Environmental Engineering
As compared to geometrical increase method of forecasting population, arithmetical increase method gives

Same value
Higher value
Lesser value
Accurate value

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Environmental Engineering
The hourly variation factor is usually taken as

2.0
1.8
2.7
1.5

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Environmental Engineering
The minimum dissolved oxygen which should always be present in water in order to save the aquatic life is

10 ppm
40 ppm
1 ppm
4 ppm

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Environmental Engineering
The detention period and overflow rate respectively for plain sedimentation as compared to sedimentation with coagulation are generally

Less and more
More and more
Less and less
More and less

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MORE MCQ ON Environmental Engineering

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