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Waste Water Engineering

Waste Water Engineering
A rain sanitary sewer is constructed to carry

Ground water
Surface water
Sanitary sewage
Storm sewage

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Waste Water Engineering
Pathogens (or pathogenic bacterias) in water may cause

Typhoid
All listed here
Cholera
Dysentery

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Waste Water Engineering
Water content of sewage is about

0.95
0.9
0.99
0.999

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Waste Water Engineering
In a grit chamber of a sewage treatment plant,

Depth of 0.9 m to 1.20 m is kept
One minute of detention period is kept
All of these
Flow velocity 0.15 m to 0.3 m/sec is kept

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Waste Water Engineering
For sewer mains of 0.5 to 1 m diameter, the ratio of maximum daily sewage flow to the average daily sewage flow is assumed

2.5
2
1.5
3

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Waste Water Engineering
The following is the physical characteristic of sewage

Colour
Odour
All listed here
Turbidity

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MORE MCQ ON Waste Water Engineering

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