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Environmental Engineering

Environmental Engineering
The gas from sludge digestion tank is mainly composed of

Nitrogen
Methane
Hydrogen sulphide
Carbon dioxide

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Environmental Engineering
Alkalinity in water is expressed as milligrams per litre in terms of equivalent

Calcium carbonate
Sodium carbonate
Magnesium carbonate
Calcium hydroxide

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Environmental Engineering
The depression of water table in a well due to pumping will be maximum(Where ‘R’ is the radius of influence)

None of these
Close to the well
At a distance R/2 from the well
At a distance R from the well

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Environmental Engineering
Which of the following values of pH represents a stronger acid?

5
4
2
3

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

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

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Environmental Engineering
The type of sewer which is suitable for both combined and separate system is

Circular sewer
Horseshoe type sewer
Egg shaped sewer
Semi-elliptical sewer

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