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Waste Water Engineering

Waste Water Engineering
The detention period for plain sedimentation water tanks, is usually

24 to 36 hours
4 to 8 hours
8 to 16 hours
16 to 24 hours

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Waste Water Engineering
Pick up the incorrect size of stone ware sewers

52.5 cm
82.5 cm
None of these
67.5 cm

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Waste Water Engineering
¾th or ¼th extra space is left in sewer pipes at maximum discharge for

All listed here
Unexpected increase in population
Large scale infiltration of storm water
Low estimates of the average and maximum flows

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Waste Water Engineering
In a fully mechanised composting plant, involves

Mechanized pulverising of refuse
All of these
Mechanized segregation
Mechanized receipt

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Waste Water Engineering
If a paper moistened with lead acetate for five minutes when placed in manhole turns black. The sewer certainly contains

Methane
Hydrogen sulphide
Oxygen
Carbon dioxide

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Waste Water Engineering
The first stage of neutral process of sludge digestion, is

Alkaline fermentation
Acid fermentation
None of these
Acid regression

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MORE MCQ ON Waste Water Engineering

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