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Waste Water Engineering

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

15
5
10
20

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Waste Water Engineering
The sewer that unloads the sewage at the point of treatment is called

Main sewer
Branch sewer
Outfall sewer
House sewer

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Waste Water Engineering
A five day B.O.D. at 15°C of the sewage of a town is 100 kg/day. If the 5 day B.O.D. per head at 15°C for standard sewage is 0.1 kg/day, the population equivalent is

100
10000
5000
1000

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

0.012
0.01
0.013
0.011

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Waste Water Engineering
For evaporation and measurement of settable solids, the apparatus used, is

A jar
A test tube
An Imhoff cone
A breaker

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

Sediments
Suspended solids
Bacterias
Hardness

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MORE MCQ ON Waste Water Engineering

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