1.Which tool is commonly used to verify whether a sign structure or component is level?
1.哪种工具通常用于检查招牌结构或部件是否处于水平状态？
2.What is the purpose of a wire stripper when servicing sign electrical systems?
2.维修招牌电气系统时，剥线钳（Wire Stripper）的作用是什么？
3.What tool is commonly used to make secure electrical terminal connections?
3.哪种工具通常用于制作牢固可靠的电气端子连接？
4.Why should hand tools used for electrical work be properly insulated when required?
4.为什么在需要时，电气工作所使用的手动工具应具有适当的绝缘性能？
5.What personal protective equipment may be required when testing or servicing electrical sign components?
5.测试或维修电气招牌部件时，可能需要使用哪些个人防护装备（PPE）？
6.Why should power tools and testing equipment be inspected before use?
6.为什么在使用前应检查电动工具和测试设备？
7.When selecting a tool for sign repair or troubleshooting, what is the most important consideration?
7.为招牌维修或故障排查选择工具时，最重要的考虑因素是什么？
