1.Which statement regarding fiber optic connector installation is correct? 1.关于光纤连接器安装，以下哪项陈述是正确的？

A. Multimode connectors are often field-installed while single-mode connectors are typically spliced to factory pigtails A. 多模连接器通常在现场安装，而单模连接器通常与工厂尾纤熔接

B. Pre-terminated cables can always be pulled safely B. 预端接电缆始终可以安全地拉动

C. Terminate one end before pulling the cable C. 在拉动电缆之前先端接一端

D. Excess fiber should not be stored in service loops D. 多余的光纤不应存放在服务环中

2.Multimode fiber termination types: 2.多模光纤端接类型：

A. Hot Melt – preloaded glue A. 热熔 - 预装胶水

B. Epoxy/Polish – glue fiber polish with film B. 环氧树脂/抛光 - 胶合光纤，用薄膜抛光

C. Adhesive – quick-set glue instead of epoxy C. 粘合剂 - 使用速干胶代替环氧树脂

D. All of the above D. 以上所有选项

3.What physical principle allows light to remain within the fiber core? 3.什么物理原理使光能够保持在光纤纤芯内？

A. Reflection of light A. 光的反射

B. Refraction B. 折射

C. Deflection C. 偏转

D. None D. 无

4.How many wires are needed to connect a passive sensor to a control panel? 4.将无源传感器连接到控制面板需要多少根电线？

A. 1 A. 1

B. 2 B. 2

C. 3 C. 3

D. 4 D. 4

5.Maximum pulling force for UTP with speaker wire: 5.UTP 线缆与扬声器线缆的最大拉力：

A. 25 pounds A. 25 磅

B. 30 pounds B. 30 磅

C. 35 pounds C. 35 磅

D. 40 pounds D. 40 磅

6.To optimize a sound system, which should be avoided? 6.为了优化音响系统，应该避免以下哪项？

A. Understanding speaker roles and placement A. 理解扬声器的作用和摆放位置

B. Choosing a central listening position and angling speakers B. 选择中心聆听位置并调整扬声器角度

C. Positioning speakers at ear level when seated C. 坐着时将扬声器放置在耳朵高度

D. Leaving walls bare D. 保持墙壁空旷

7.Correct receiver connection example: 7.正确的接收器连接示例：

A. Cannot plug sources into HDMI/component inputs A. 不能将信号源插入 HDMI/分量输入端

B. Two HDMI cables to TV from “monitor out” B. 两根 HDMI 线缆从“显示器输出”连接到电视

C. Satellite/cable box HDMI → receiver input C. 卫星/有线电视盒 HDMI → 接收器输入

D. Use 2–4 ft HDMI for TVs >46 inches D. 对于大于 46 英寸的电视，使用 2-4 英尺的 HDMI 线缆

8.What is the key factor to ensure proper speaker installation? 8.确保扬声器正确安装的关键因素是什么？

A. Room acoustics A. 房间声学

B. Bare walls B. 空旷的墙壁

C. An unobstructed path to the speaker C. 到扬声器的路径畅通无阻

D. Tweeter-to-woofer alignment D. 高音单元与低音单元对齐

9.Splicing with index-matching gel uses: 9.使用折射率匹配凝胶进行光纤熔接的方法是：

A. Fusion A. 熔接

B. Electrical B. 电气连接

C. Mechanical C. 机械连接

D. All of the above D. 以上所有方法

10.In a straight-through Cat5 cable for 100Base-T Ethernet, which wires carry data? 10.在用于 100Base-T 以太网的直通式 Cat5 电缆中，哪些线缆用于传输数据？

A. 1 2 3 6 A. 1 2 3 6

B. 1 2 4 6 B. 1 2 4 6

C. 1 3 4 6 C. 1 3 4 6

D. 1 4 5 6 D. 1 4 5 6

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