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Waste Water Engineering

Waste Water Engineering
The intensity of rain is expressed in

cm/minute
cm/hour
None of these
cm/day

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Waste Water Engineering
The pH value of sewage is determined with the help of

None of these
Imhoff Cone
Turbid meter
Potentiometer

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Waste Water Engineering
If the flame of a miner's safety lamp in the upper layers of the sewer forms an explosive, the sewer certainly contains

Oxygen
Carbon dioxide
Methane
Hydrogen sulphide

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Waste Water Engineering
In case of Imhoff tanks,

All of these
The velocity of flow is restricted to 0.30 m/minute
The shape is rectangular
Detention period is 2 hours

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Waste Water Engineering
An inverted siphon is designed generally for

Four pipes
Three pipes
Two pipes
One pipe

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Waste Water Engineering
For trunk sewers more than 1.25 m in diameter, the ratio of the maximum daily sewage flow to the average daily sewage flow is assumed

2
1.5
2.5
3

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