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Waste Water Engineering

Waste Water Engineering
Water content of sewage is about

0.999
0.9
0.95
0.99

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

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Waste Water Engineering
The most dangerous pollutant in vehicular emissions is

CO₂
CO₂
O₂
SO₂

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Waste Water Engineering
If is the diameter of upper circular portion, the overall depth of a standard egg shaped section, is

1.5 D
1.75 D
1.15 D
1.25 D

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Waste Water Engineering
Aerobic activity is maximum

At sewer pipes
None of these
In freshly produced sewage
In sewer treatment plants

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Waste Water Engineering
In a residential colony, sewers of diameters 100 mm, 150 mm and 225 mm were laid with a gradient 1 in 120. Which portion of the sewage system does not choke in due course of time?

150 mm dia
225 mm dia
100 mm dia
All of these

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