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Waste Water Engineering

Waste Water Engineering
The rate of accumulation of sludge per person per year, is

10 litres
20 litres
15 litres
25 litres

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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

0.05554 cumec
0.0556 cumec
0.05552 cumec
0.05556 cumec

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Waste Water Engineering
The minimum diameter of a sewer is kept

10 cm
25 cm
15 cm
20 cm

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Waste Water Engineering
The rate of accumulation of sludge in septic tanks is recommended as

25 litres/person/year
25 litres/person/month
30 litres/person/month
30 litres/person/year

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Waste Water Engineering
The maximum spacing of manholes specified by Indian standard in sewers upto 0.3 m diameter is

20 m
45 m
30 m
75 m

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Waste Water Engineering
Pathogens (or pathogenic bacterias) in water may cause

Dysentery
Typhoid
All listed here
Cholera

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