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Environmental Engineering

Environmental Engineering
A pipe which is installed in the house drainage to preserve the water seal of traps is called

Anti-siphonage pipe
Vent pipe
Soil pipe
Waste pipe

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Environmental Engineering
In facultative stabilization pond, the sewage is treated by

Dual action of aerobic bacteria and anaerobic bacteria
Algae only
Aerobic bacteria only
Sedimentation

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

Methane
Nitrogen
Carbon dioxide
Hydrogen sulphide

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Environmental Engineering
Turbidity is measured on

Standard cobalt scale
Standard silica scale
Platinum cobalt scale
Standard platinum scale

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Environmental Engineering
The process of lagooning is primarily a means of

Disposing of sludge
Increasing flow of sewage through imhoff tanks
Reducing the excessive flow in sewers
Increasing the capacity of storage reservoirs

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Environmental Engineering
Residual chlorine in water is determined by

Starch iodide method
None of these
Both (A) and (B)
Orthotolidine method

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