【Daily Question】Utilities - Water Supply and Drainage - 20191020

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Which of the following statements regarding the working principle of pressure-fed water supply systems is incorrect? (  )   A. Pressure-driven water supply equipment is manufactured based on Boyle’s law. B. Pressure-driven water supply equipment is designed according to the principle that, under constant temperature conditions, the relative pressure of a given mass of gas is inversely proportional to the volume it occupies. C. During the water supply process, in single-tank constant-pressure pressure-driven water supply equipment, the water pressure inside the tank remains constant at a set level. D. Pressure-driven water supply equipment utilizes changes in the pressure of compressed air in a sealed tank to achieve pressure enhancement and regulation of water flow. Answer: B is the correct answer. Option B does not conform to Boyle’s law and Mariotte’s law. Under constant temperature conditions, the absolute pressure of a given mass of gas is inversely proportional to the volume it occupies, rather than the relative pressure