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Waste Water Engineering

Waste Water Engineering
For trunk and out-fall, the type of sewers generally used, is

Horse shoe shaped
Standard egg shaped
Parabolic shaped
Circular shaped

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Waste Water Engineering
The porosity of sediments in sewer pipes, is usually taken as

0.01
0.011
0.012
0.013

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Waste Water Engineering
Removal of oil and grease from sewage, is known

Skimming
None of these
Screening
Filtration

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Waste Water Engineering
A circular sewer section is preferred to because

It provides maximum area for a given perimeter
It is cheaper in construction
It provides maximum hydraulic mean depth
All listed here

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Waste Water Engineering
The rate of accumulation of sludge in septic tanks is recommended as

30 litres/person/month
30 litres/person/year
25 litres/person/month
25 litres/person/year

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Waste Water Engineering
The rational formula for peak drainage discharge, was evolved by

All of these
Fruhling
Kuichling
Lloyd David

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