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Waste Water Engineering

Waste Water Engineering
Bottom openings 15 cm × 15 cm in the standing baffle wall are provided

50 cm c/c
15 cm c/c
22.5 cm c/c
30 cm c/c

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Waste Water Engineering
The asbestos cement pipes are generally laid

Horizontally
At an angle of 30°
Vertically
At an angle of 60°

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Waste Water Engineering
Chlorination of water is done for the removal of

Hardness
Sediments
Suspended solids
Bacterias

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

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

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Waste Water Engineering
The detention time of a circular tank of diameter d and water depth H, for receiving the sewage Q per hour, is

d (0.285d + 0.011H)/Q
d (0.022d + 0.085H)/Q
d (0.785d + 0.011H)/Q
d² (0.011d + 0.785H)/Q

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Waste Water Engineering
In a fully mechanised composting plant, involves

Mechanized pulverising of refuse
All of these
Mechanized receipt
Mechanized segregation

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