Waste Water Engineering Mcqs

Q.  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__________________?

a. 0.10 cumec
b. 0.12 cumec
c. 0.15 cumec
d. 0.20 cumec


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