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Waste Water Engineering

Waste Water Engineering
A nuisance is experienced in diluting water if dilution factor is less than

100
20
60
40

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Waste Water Engineering
As compared to fresh river water, sea water contains oxygen

20% less
20% more
10% less
10% more

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Waste Water Engineering
Self-cleansing velocity is

Velocity of water in a pressure filter
Velocity at which no accumulation remains in the drains
Velocity of water at flushing
Velocity at dry weather flow

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Waste Water Engineering
Dried sewage after treatment is used as

Building material
Fertilizer
Chemical for lowering B.O.D.
Base material for paints

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Waste Water Engineering
Pick up the incorrect size of stone ware sewers

67.5 cm
None of these
82.5 cm
52.5 cm

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Waste Water Engineering
The width of a settling tank with 2 hour detention period for treating sewage 378 cu m per hour, is

5 m
6.5 m
5.5 m
7 m

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MORE MCQ ON Waste Water Engineering

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