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

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

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Waste Water Engineering
The pressure exerted by

Pressure sewers are designed to be safe in tension
The sewage when running full from inside, is called internal pressure
All listed here
The internal pressure if any, causes tensile stress in the pipe material

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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 used for carrying sewage and drainage from houses
All listed here
Are manufactured from clays and shale

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