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Waste Water Engineering

Waste Water Engineering
Antisyphonage pipe is fitted

With a W.'trap
On manholes
At the beginning of sewer line
At the end of septic tanks

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Waste Water Engineering
The width of a rectangular sewer is twice its depth while discharging 1.5 m/sec. The width of the sewer is

1.36 m
0.88 m
0.68 m
1.76 m

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Waste Water Engineering
Which one of the following resists hydrogen sulphide corrosion?

Asbestos cement
Glazed stone wares
Glazed ware
R.C.C.

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Waste Water Engineering
If q is the average sewage flow from a city of population P, the maximum sewage flow

Q = [(5 + )/((15 + )] q
Q = [(18 + P)/(4 + )] q
Q = [(4 + )/(18 + )] q
Q = [(18 + )/(4 + )] q

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Waste Water Engineering
The angle subtended by the surface of sewer water with partial flow, at sewer centre is 120°, the depth of sewerage is

20 cm
50 cm
25 cm
40 cm

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Waste Water Engineering
Water content of sewage is about

0.99
0.95
0.9
0.999

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