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【Daily Topic】【HVAC Version 20170526】

2017-05-26View Original

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Participation reward: 2 Wealth. Correct reward: 6 Wealth (please hide the answer.) Method: Advanced mode – click on the icon that combines a lock and a basket – add hidden content – submit). Multiple-choice question: The building is supplied with water using a pressure tank system; when the flow rate of the pump (or pump set) in this system is 12 m3/h, and taking into account a safety factor of 1.0 to 1.3, the number of times the pump can be started per hour should not exceed 8 times. What is then the minimum regulating volume of the pressure tank? A. 2.0m3  B. 2.5m3  C. 1.0m3  D. 2.8m3  B

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