1.Which of the following is NOT a commonly used connection method for PVC pipes and PE pipes?
1.以下哪项不是 PVC 管和 PE 管常用的连接方式？
2.When connecting pipelines to equipment, what connection method should be adopted?
2.管道与设备连接时，应采用哪种连接方式？
3.In the pressure test, after pressurizing to the test pressure, what is the pressure holding time?
3.在压力试验中，加压达到试验压力后，需要保持多长时间？
4.What test medium is used for the air tightness test of gas pipelines?
4.燃气管道气密性试验使用什么测试介质？
5.What method is used for the air tightness test of sewage pipelines?
5.污水管道气密性测试通常采用什么方法？
6. What is the core test to be carried out for power and communication pipelines?
6.电力和通信管道需要进行的核心测试是什么？
7.After the pipeline system test is qualified, the relevant data needs to be submitted to which department for acceptance?
7.管道系统测试合格后，相关资料需要提交给哪个部门进行验收？
8.What is the core department regulation to be followed for dry utility connections?
8.干式公用设施连接（Dry Utility Connections）施工需要遵循的核心部门规定是什么？
9.Before the construction of dry utility connections, what is the core document to be obtained?
9.干式公用设施连接施工前，需要取得的核心文件是什么？
10.What tool should be used for cable stripping?
10.电缆剥皮应使用什么工具？
