【Daily Question】Utilities - Water Supply and Drainage - 20200105
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The operating pressure of the water mist nozzles, when used for protection and cooling, should not be less than ( ) MPa. A.0.35 B.0.30 C.0.25 D.0.20 Answer: D
Design requirement: The operating pressure of the water mist nozzles should not be less than 0.35 MPa when used for fire extinguishing； It should not be less than 0.2 MPa when used for protective cooling, but for storage tanks holding Class A B, C liquids, it should not be less than 0.15 MPa.