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Waste Water Engineering

Waste Water Engineering
Sewer pipes need be checked for

Minimum flow
Both A and B
Maximum flow
None of these

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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

25 cm
50 cm
20 cm
40 cm

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Waste Water Engineering
Water content of sewage is about

0.95
0.99
0.999
0.9

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Waste Water Engineering
The flow velocity in detritus tanks is

0.05 m/sec
None of these
0.09 m/sec
1.25 m/sec

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

A jar
An Imhoff cone
A breaker
A test tube

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Waste Water Engineering
The sewer which collects the discharge from a collecting system and delivers it to a treatment plant, is known

House sewer
Sewer outfall
Branch sewer
Lateral sewer

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