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Waste Water Engineering

Waste Water Engineering
Antisyphonage pipe is fitted

At the beginning of sewer line
With a W.'trap
At the end of septic tanks
On manholes

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Waste Water Engineering
In SI units the power of sound is represented in

Newtons
Kgs
Watts
Joules

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

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

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Waste Water Engineering
The porosity of sediments in sewer pipes, is usually taken as

0.011
0.01
0.013
0.012

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Waste Water Engineering
If the flame of a miner’s safety lamp in a manhole extinguishes within 5 minutes, the sewer certainly contains

Methane
Hydrogen sulphide
Carbon dioxide
Oxygen

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Waste Water Engineering
In a city the ratio of the drainage to sewage is 20, the percentage discharge passing through non-monsoon periods, is

5
10
20
15

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