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Waste Water Engineering

Waste Water Engineering
The spacing of man holes along a straight portion of a sewer is 300 m, the diameter of the sewer may be

1.5 m
> 1.5 m
0.9 cm
1.2 m

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Waste Water Engineering
For providing an Indian type W.C., the R.C.C. slabs in the toilet portion

Should be sunk by 20 cm
Should be sunk by 50 cm
Should be kept 20 cm above the adjacent portion
Need not be sunk

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Waste Water Engineering
In circular sewers if depth of flow is 0.2 times the full depth, the nominal gradient,

Is not enough
Is only provided
Is trebled
Is doubled

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Waste Water Engineering
Large diameter sewers subjected to external pressure alone, are reinforced

Near the inner surface of the pipe
Near the outer surface of the pipe
With elliptical cage
Both A and B

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Waste Water Engineering
For evaporation and measurement of settable solids, the apparatus used, is

A jar
A breaker
A test tube
An Imhoff cone

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Waste Water Engineering
15 cumecs, the depth d and width are related by For drains up to

d = 0.2 B
B = 0.5 d
B = 0.2 d
d = 0.5 B

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