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Waste Water Engineering

Waste Water Engineering
The grit and silt of the grit chambers, may not be used for

Both A and B
Concreting
Raising low lying areas by dumping
Neither A nor B

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Waste Water Engineering
A sewer running partially full and hurried with back filled, fails in compression due to

Weight of the pipe
Weight of the back fill
All listed here
Superimposed traffic loads

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Waste Water Engineering
You are asked to design sewer pipes of diameters 0.4 m to 0.9 m at maximum flow, you will assume the sewer flow running at

Full depth
Half full
Three fourth full
Two third full

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Waste Water Engineering
‘Cowl’ is provided at

Upper end of the manhole
First step in manhole
Lower end of ventilating column
Upper end of ventilating column

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Waste Water Engineering
The ratio of the diameter of a circular section and the side of a square section hydraulically equivalent, is

1.075
1.085
1.095
1.065

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Waste Water Engineering
Disposal to sewage in large cities, is done in

Oxidation
Irrigation
Purification
Dilution

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