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【Daily Question】Utility Engineering – Water Supply and Drainage – 20200218

2020-02-18View Original

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The bathroom in a 11-story residential building has separate drainage at the ground floor, while floors 2 to 11 share the same vertical pipe for drainage. It is known that each household’s bathroom is equipped with 1 toilet (N=6.0, q=2.0 L/s, b=10%), 1 shower (N=0.45, q=0.15 L/s, b=10%), and 1 washbasin (N=0.75, q=0.25 L/s, b=20%). Therefore, the designed discharge flow rate at the bottom of the drainage pipe is (    ) L/s.   A、2.04            B、3.02         C、3.53          D、4.04  Answer: C

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