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Waste Water Engineering

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

Hydrogen sulphide
Methane
Oxygen
Carbon dioxide

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Waste Water Engineering
The intensity of rain is expressed in

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

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Waste Water Engineering
The sewer pipe which carries sewage from a building for immediate disposal is

Main sewer
Intercepting sewer
Lateral sewer
House sewer

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Waste Water Engineering
R.M.O. expenses include

All of these
Maintenance expenses
Running expenses
Operation expenses

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

House sewer
Main sewer
Branch sewer
Out-fall sewer

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Waste Water Engineering
1000 kg of sewage contains

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

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