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Waste Water Engineering

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

All listed here
Dysentery
Cholera
Typhoid

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Waste Water Engineering
The intensity of rain is expressed in

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

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Waste Water Engineering
The drainage area of a town is 12 hectares. Its 40% area is hard pavement ( K = 0.85), the 40% area is unpaved streets (K = 0.20) and the remaining is wooded areas (K = 0.15). Assuming the time of concentration for the areas as 30 minutes and using the formula Ps = 900/(t + 60) the maximum run off is

0.20 cumec
0.15 cumec
0.10 cumec
0.12 cumec

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Waste Water Engineering
The sewer which collects the discharge from a collecting system and delivers it to a treatment plant, is known

House sewer
Sewer outfall
Branch sewer
Lateral sewer

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Waste Water Engineering
House connections to the laterals is generally made by

Cast iron
P.C.C.
Glazed stonewares
R.C.C.

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Waste Water Engineering
The small sewers are cleaned by

Cane rodding
Wooden pills
None of these
Flushing

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