Waste Water Engineering
Sewer pipes are designed for maximum discharge with 25% to 33% vacant cross-sectional area for

All of these
Unexpected increase in the population
Unexpected large scale infiltration of stream water
Under estimates of maximum and average flows

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Waste Water Engineering
In case of sewer lines

All listed here
Test for straightness is carried out with the help of a lamp and mirror
Water test is carried out to check water tightness of the joints
Obstruction test is carried out with the help of smooth ball of diameter 13 mm

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Waste Water Engineering
The stone ware sewers

After casting are dried and burnt at temperature 150°C, 700°C and 1200°C
Are manufactured from clays and shale
All listed here
Are used for carrying sewage and drainage from houses

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