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Waste Water Engineering

Waste Water Engineering
For design of sewers, percentage of sewage discharge is assumed

0.85
70 to 75%
75 to 80%
65 to 70%

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Waste Water Engineering
The arrangement made for passing the sewer line below an obstruction below the hydraulic gradient lines called

Depressed sewer
Inverted syphon
Sag pipe
all of these

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Waste Water Engineering
A drop manhole is provided if

None of these
A sewer drops from a height
A branch sewer joins the main sewer at higher level
A lamp is inserted to check obstruction

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Waste Water Engineering
In R.C. sewer pipes, the percentage longitudinal reinforcement to the cross-sectional area of concrete is kept

0.25
5
10
2

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Waste Water Engineering
Before discharging the foul sewage into rivers, it is generally treated by

Oxidation
Screening
Sedimentation
All listed here

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Waste Water Engineering
Antisyphonage pipe is fitted

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

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MORE MCQ ON Waste Water Engineering

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