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Waste Water Engineering

Waste Water Engineering
The factor responsible for purification of sewage in river is

Temperature
Hydrology
All listed here
Dissolved oxygen in water

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

Mirror test
Water test
All of these
Ball test

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Waste Water Engineering
Discrete or granular particles change their

Weight
Shape
None of these
Size

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Waste Water Engineering
The dimensions of a rectangular settling tank are: length 24 m, width 6 m and depth 3 m. If 2 hour detention period for tanks is recommended, the rate of flow of sewage per hour, is

204 cu.m
208 cu.m
212 cu.m
216 cu.m

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Waste Water Engineering
The disintegrating pump in which solid matter is broken up before passing out, is

None of these
Pneumatic ejector
Reciprocating pump
Centrifugal pump

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Waste Water Engineering
The intensity of rain is expressed in

cm/day
cm/hour
cm/minute
None of these

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