1.What color identification is used for reclaimed (non-potable) water pipelines?
1.再生水（非饮用水）管线使用什么颜色标识？
2.Which type of fire extinguisher is most appropriate for protecting computers and sensitive electronic equipment without damaging the equipment?
2.哪种灭火器最适合保护计算机和敏感电子设备，同时不会损坏设备？
3.What is the primary hazard when welding galvanized steel pipe?
3.焊接镀锌钢管时，主要危险是什么？
4.Who is responsible for conducting tailgate safety meetings on a construction site?
4.施工现场的班前安全会议（Tailgate Safety Meeting）由谁负责组织？
5.In a commercial building electrical service panel, which wire color identifies the equipment grounding conductor?
5.在商业建筑电气服务面板中，哪种导线颜色代表设备接地导体？
6.What dimension of lumber is typically used for a wood scaffold platform plank?
6.木质脚手架工作平台通常使用哪种规格的木板？
7.What is the minimum required width of a scaffold working platform?
7.脚手架工作平台要求的最小宽度是多少？
8.When installing temporary steel plates over roadway openings, what clearance is required between adjacent plates?
8.在道路开口处安装临时钢板时，相邻钢板之间需要保持多少间隙？
9.When operating a portable power tool outdoors, what safety measure should be used?
9.在室外使用便携式电动工具时，应采取什么安全措施？
10.According to safety regulations, what is the maximum permitted height for a painter’s step ladder?
10.根据安全法规，油漆工折梯（Painter’s Step Ladder）的最大允许高度是多少？
