1.Which component is commonly associated with the operation of fluorescent sign lighting? 1.以下哪种组件通常与荧光灯招牌照明系统的运行有关？

A. Ballast A. 镇流器

B. Carburetor B. 化油器

C. Hydraulic pump C. 液压泵

D. Mechanical clutch D. 机械离合器

2.What is the primary purpose of a neon tube in a neon sign? 2.霓虹招牌中的霓虹灯管（Neon Tube）的主要作用是什么？

A. To provide structural support for the cabinet A. 为箱体提供结构支撑

B. To produce visible light when an electrical discharge passes through the gas B. 当电流通过气体产生放电时，产生可见光

C. To waterproof the sign face C. 使招牌面板防水

D. To reduce the physical size of the sign D. 减小招牌的物理尺寸

3.Why must neon tubing be carefully shaped during neon sign fabrication? 3.为什么在制作霓虹招牌时必须仔细对霓虹灯管进行成型？

A. To ensure the tubing follows the intended letter or graphic design A. 确保灯管按照预定的字母或图形设计进行弯曲成型

B. To increase the weight of the sign B. 增加招牌重量

C. To eliminate the need for electrodes C. 消除对电极的需求

D. To prevent the sign from requiring electrical power D. 防止招牌需要电力

4.Which process is an important part of neon sign fabrication after the glass tubing has been formed? 4.玻璃灯管成型后，霓虹招牌制作过程中还包括哪项重要工序？

A. Filling the tubing with hydraulic oil A. 向灯管内填充液压油

B. Applying concrete inside the tubing B. 在灯管内部浇筑混凝土

C. Installing and processing the electrodes and filling the tube with the appropriate gas C. 安装并处理电极，然后向灯管内充入适当的气体

D. Connecting the tubing directly to a water supply D. 将灯管直接连接到供水系统

5. What is a major advantage of digital displays compared with traditional fixed sign faces? 5.与传统固定式招牌面板相比，数字显示屏的一项主要优势是什么？

A. They cannot display changing information A. 无法显示变化的信息

B. They can electronically display changing text graphics or messages B. 可以通过电子方式显示不断变化的文字、图形或信息

C. They require no electrical power C. 不需要电力

D. They eliminate all maintenance requirements D. 可以消除所有维护要求

6.When designing and fabricating an illuminated sign, what should be considered for the overall sign assembly? 6.设计和制作发光招牌时，对整个招牌组件应考虑哪些因素？

A. Only the appearance of the sign face A. 仅考虑招牌面板的外观

B. Structural support materials illumination electrical components access and proper assembly B. 结构支撑、材料、照明、电气组件、检修通道以及正确组装

C. Only the color of the lettering C. 仅考虑字母的颜色

D. Only the weight of the sign face D. 仅考虑招牌面板的重量