1.What is the maximum permitted width of a typical single-pole traffic sign when a non-breakaway installation is used?
1.采用非断裂式（Non-breakaway）安装方式时，典型单杆式交通招牌允许的最大宽度是多少？
2.What is the maximum permitted width of a typical three-pole traffic sign using a non-breakaway installation?
2.采用非断裂式（Non-breakaway）安装方式时，典型三杆式交通招牌允许的最大宽度是多少？
3.Which type of outdoor sign is specifically designed to emphasize or trace the physical structure of a building?
3.哪一种户外招牌专门用于突出或勾勒建筑物的实体结构轮廓？
4.What is the minimum mounting height for a sign specifically intended to be viewed by road vehicles in commercial or urban areas?
4.专门用于供商业或城市区域道路车辆观看的招牌，其最小安装高度是多少？
5.What is the maximum approximate visibility distance of a 10-inch-high letter fabricated with red neon tubing?
5.使用红色霓虹灯管制作的 10 英寸高字母，其最大大约可见距离是多少？
6.Which two electrode types are commonly used in the electrical sign industry?
6.电气招牌行业中通常使用哪两种电极类型？
7.Which requirements apply to the lead-in wire used in a sign tube?
7.招牌灯管所使用的引入线（Lead-in Wire）必须满足哪些要求？
8.Which wire colors are normally used to identify DC power connections in electrical signage?
8.电气招牌中，通常使用什么颜色的导线来识别直流电源连接？
9.What is the specialized wire designed for use as the lead-in wire of a neon sign tube called?
9.专门设计用于作为霓虹灯管引入线的特殊导线叫什么？
10.Neon, xenon, krypton, helium, and argon are commonly classified as which type of gases?
10.氖（Neon）、氙（Xenon）、氪（Krypton）、氦（Helium）和氩（Argon）通常被归类为什么类型的气体？
