【Daily Question】Utilities - Water Supply and Drainage - 20191008

2019-10-08View Original

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A residence is supplied with water using a pneumatic water supply system (diaphragm-type air tank). The maximum water consumption in this building is 12.5 m3/h; therefore, the flow rate of the pump – measured based on the average pressure in the air tank and corresponding to the pump’s head – should be ( ) m3/h. A.7.5 B.10.0 C.12.5 D.15.0 Answer: D is the correct answer. According to Article 3.8.5, Paragraph 3 of the current Code for Design of Building Water Supply and Drainage, the flow rate of the pump should be no less than 1.2 times the maximum hourly water demand of the system. Therefore, the pump flow rate Qb = 12.5 × 1.2 = 15 m3/h

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【Daily Question】Utilities - Water Supply and Drainage - 20191008

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