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Waste Water Engineering

Waste Water Engineering
The sewer which received discharge from two or more main sewers, is known as

A trunk sewer
An intercepting sewer
A main sewer
An outfall sewer

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Waste Water Engineering
The following is the physical characteristic of sewage

Turbidity
Odour
All listed here
Colour

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Waste Water Engineering
The ratio of the diameter of a circular section and the side of a square section hydraulically equivalent, is

1.085
1.065
1.075
1.095

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Waste Water Engineering
In primary sedimentation, the 0.2 mm inorganic solids get separated if specific gravity is

2.5
2.25
2.55
2.65

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Waste Water Engineering
If the diameter of sewer is 225 mm, the gradient required for generating self cleansing velocity, is

1 in 120
1 in 60
None of these
1 in 100

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Waste Water Engineering
The grit and silt of the grit chambers, may not be used for

Both A and B
Concreting
Neither A nor B
Raising low lying areas by dumping

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