Civil Engineering :: Waste Water Engineering
- Which one of the following resists hydrogen sulphide corrosion?
- The ratio of the diameter of a circular section and the side of a square section hydraulically equivalent, is
- Pick up the correct statement from the following:
- Pick up the correct statement from the following:
- The ratio of maximum sewage flow to average sewage flow for mains up to 1 m in diameter, is
- The sewerage system originates from
- The digested sludge from septic tanks, is removed after a maximum period of
- The underground sewers are more subjected to
- The formula which accepts the value of rugosity coefficient n = 0.012 to be used in Manning’s formula, is given by
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A.
The sewer pipes of sizes less than 0.4 m diameter are designed as running full at maximum discharge |
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B.
The sewer pipes of sizes greater than 0.4 m diameter are designed as running 2/3rd or 3/4th full at maximum discharge |
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C.
The minimum design velocity of sewer pipes is taken as 0.8 m/sec |
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D.
All the above |