洁净空调风管加工和安装严密性的试验压力,干管(含支干管)可采用1000Pa,支管

练习题库2022-08-02  32

问题 洁净空调风管加工和安装严密性的试验压力,干管(含支干管)可采用1000Pa,支管可采用700Pa,总管可采用(  )。A.1800PaB.1500PaC.1200PaD.1000Pa

选项 A.1800Pa
B.1500Pa
C.1200Pa
D.1000Pa

答案 B

解析
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