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【Daily Question】Utilities - Water Supply and Drainage - 20191107

2019-11-07View Original

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This post was last edited by hesonchang214 on 2019-11-7 07:02. It is known that the maximum hourly water consumption of the water supply system is 20 m3/h; the water pressure required at the most unfavorable point in the system is 0.15 MPa, while the maximum operating pressure is 0.35 MPa. The values for αa range from 1.0 to 1.3, and nq ranges from 6 to 8 times per hour. Then the total volume of the diaphragm-type air pressure water tank must be at least (    )m3. A2.23 ;   B1.75 ;   C2.25 ;   D 5 .25.   Answer: B is the correct answer

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