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Waste Water Engineering

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

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

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Waste Water Engineering
The sewer which resists sulphide corrosion, is

Lead sewer
R.C. sewer
Brick sewer
Cast iron sewer

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Waste Water Engineering
In a fully mechanised composting plant, involves

Mechanized pulverising of refuse
Mechanized receipt
Mechanized segregation
All of these

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Waste Water Engineering
The density of population over 40 hectares is 250/hectare. If water supply demand per day is 200 litres and sewage discharge is 80% of water supply, the sewage flow in sewers of separate system, is

0.05556 cumec
0.05552 cumec
0.0556 cumec
0.05554 cumec

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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

Oxygen
Hydrogen sulphide
Methane
Carbon dioxide

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Waste Water Engineering
The spacing of bars for perforations in coarse screens used for the treatment of sewage, is

40 mm
50 mm
30 mm
20 mm

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