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Waste Water Engineering

Waste Water Engineering
The suitable cross-section of sewers to carry combined flow, is

Rectangular
Horse shoe shaped
Egg shaped
Circular

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Waste Water Engineering
Which one of the following tests is used for testing sewer pipes?

All of these
Ball test
Water test
Mirror test

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Waste Water Engineering
The temperature affects the

All of these
Biological activity of bacteria in sewage
Viscosity of sewage
Solubility of gases in sewage

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Waste Water Engineering
The sludge does not contain waste water from

Wash basins
Kitchen sinks
Toilets
Bath rooms

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Waste Water Engineering
The width of a rectangular sewer is twice its depth while discharging 1.5 m/sec. The width of the sewer is

1.76 m
0.88 m
1.36 m
0.68 m

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Waste Water Engineering
The sewer which resists sulphide corrosion, is

Lead sewer
R.C. sewer
Brick sewer
Cast iron sewer

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