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【Daily Question】Utilities - Water Supply and Drainage - 20200418

2020-04-18View Original

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A certain project uses a semi-volume water heater, with hot water as the heating medium. The supply and return water temperatures are 95°C and 70°C respectively, the calculated temperature of the cold water is 10°C, and the outlet temperature of the water heater is 60°C. Therefore, the calculated temperature difference between the heating medium and the water to be heated should be ( )°C. A.47.5 B.35.0 C.40.5 D.46.4 Answer: A

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