1.What is the safest method for permanently securing a heavy 7-foot (48U) server rack to a concrete slab?
1.将重型7英尺（48U）服务器机架永久固定到混凝土板上的最安全方法是什么？
2.For cross-arms supporting overhead utility lines, how should they be bonded to the pole’s grounding conductors to ensure safety and proper fault current paths?
2.对于支撑架空公用线路的横臂，应如何将其连接到电线杆的接地导体，以确保安全和正确的故障电流路径？
3.After pulling a Cat6 cable run, excess cable inside the wall cannot be safely coiled or re-looped. What is the professional and compliant solution?
3.布设 Cat6 电缆后，墙内多余的电缆无法安全地盘绕或重新缠绕。专业的合规解决方案是什么？
4.How many 2-inch conduits are needed to accommodate 38 Cat5e (5 mm) and 26 Cat6 (6 mm) cables?
4.需要多少根 2 英寸的导管才能容纳 38 根 Cat5e (5 mm) 和 26 根 Cat6 (6 mm) 电缆？
5.Which type of fire extinguisher is unsafe to use on electrical fires?
5.哪种类型的灭火器不适合用于扑灭电气火灾？
6.When connecting traditional Energy Management Systems to a Building Automation System, which cable and connector pair is generally NOT used for horizontal data runs?
6.将传统能源管理系统连接到楼宇自动化系统时，哪种电缆和连接器组合通常不用于水平数据传输？
7.Which type of fish tape should be used when running cable near live electrical circuits?
7.在靠近带电电路布线时，应使用哪种类型的穿线器？
8.Per OSHA fall arrest standards, what is the maximum free-fall distance allowed before a fall-arrest system must stop the fall?
8.根据 OSHA 的防坠落标准，防坠落系统必须在多大的自由落体距离内阻止坠落？
9.Which power tool is normally built to run continuously and therefore does not use a dead-man safety switch?
9.哪种电动工具通常设计为连续运行，因此不使用安全开关？
