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Waste Water Engineering

Waste Water Engineering
1000 kg of sewage contains

0.225 kg in solution
0.112 kg in suspension
0.112 kg in solution
Both A and C of above

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Waste Water Engineering
If the pH value of sewage is 7

It is acidic
It is neutral
None of these
It is alkaline

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Waste Water Engineering
The sewer which transports the sewage to the point of treatment, is called

House sewer
Branch sewer
Main sewer
Out-fall sewer

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Waste Water Engineering
The formula V = (1/n) r2/3

Bazin’s formula
Manning’s formula
Chezy’s formula
Kutter’s formula

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Waste Water Engineering
The ratio of minimum hourly flow to the average flow of sewage is

43832
43834
43894
43833

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Waste Water Engineering
For house drainage minimum gradient is

1 in 80
1 in 400
1 in 10
1 in 60

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