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Waste Water Engineering

Waste Water Engineering
15 cumecs, the depth d and width are related by For drains up to

d = 0.2 B
B = 0.5 d
d = 0.5 B
B = 0.2 d

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Waste Water Engineering
hydraulically equivalent, the relationship which holds good, is

D8/3 = 4 b8/3
D3/2 = 4 b3/2
D2/3 = 4 b2/3
D3/8 = 4 b3/8

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

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

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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

7 m
5 m
6.5 m
5.5 m

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Waste Water Engineering
The bottom of the sewage inlet chamber of septic tanks, is provided an outward slope

1 in 15
1 in 10
1 in 5
1 in 20

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Waste Water Engineering
If is the diameter of upper circular portion, the overall depth of New Egg shaped sewer section, is

1.350 D
1.625 D
1.425 D
1.250 D

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