istrict has a drainage area of 10 square kilometres, with a population of 4000 persons per sq. km. The daily water supply to the district is equal to 150 litres per head. During dry weather, it is found that 7% of the daily dry weather flow passes along the sewer between the hours of 12 noon and 1 p.m. Assuming a maximum rainfall of 2 cm in 24 hours over the whole area, determine the diameter of a circular sewer, having a slope of 1:3000, which will take the maximum dry weather flow and the rainfall, without the sewer becoming more than half full. Assume ?=70.
istrict has a drainage area of 10 square kilometres, with a population of 4000 persons per sq. km. The daily water supply to the district is equal to 150 litres per head. During dry weather, it is found that 7% of the daily dry weather flow passes along the sewer between the hours of 12 noon and 1 p.m. Assuming a maximum rainfall of 2 cm in 24 hours over the whole area, determine the diameter of a circular sewer, having a slope of 1:3000, which will take the maximum dry weather flow and the rainfall, without the sewer becoming more than half full. Assume ?=70.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A district has a drainage area of 10 square kilometres, with a population of 4000 persons per sq. km. The daily water supply to the district is equal to 150 litres per head. During dry weather, it is found that 7% of the daily dry weather flow passes along the sewer between the hours of 12 noon and 1 p.m. Assuming a maximum rainfall of 2 cm in 24 hours over the whole area, determine the diameter of a circular sewer, having a slope of 1:3000, which will take the maximum dry weather flow and the rainfall, without the sewer becoming more than half full. Assume ?=70.
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