1.Which pipe is suitable for installing a waste pipe?
1.哪种管材适合安装排水管？
2.Which system requires a 10-foot vertical water test?
2. 哪个系统需要进行 10 英尺垂直水压测试？
3.What is the role of the condensate line in an AC unit?
3.空调机组中冷凝水管的作用是什么？
4.What does a storm pollution prevention system do?
4.雨水污染预防系统的作用是什么？
5.How high should a gas exhaust vent be above the roof?
5.排气口应距屋顶多高？
6.What tool is used for installing a suspended water pipe?
6.安装悬吊式水管用什么工具？
7.Where should a clothes dryer’s exhaust duct end?
7.干衣机的排气管末端应设置在哪里？
8.What is the minimum insulation thickness for a steam pipe over 1.5 inches in diameter?
8.直径超过 1.5 英寸的蒸汽管道的最小保温层厚度是多少？
9.Which area least needs an exhaust fan?
9.哪个区域最不需要排气扇？
10.What is used to install a suspended water pipe?
10.安装悬空水管用什么？
