1.Minimum single-mode fiber length for OTDR testing is:
1.OTDR 测试所需的最小单模光纤长度为：
2.Recommended mandrel diameter when pulling tight-buffer fiber by its jacket is:
2.用护套拉紧缓冲光纤时，推荐的芯轴直径为：
3.Max frequency typically supported by standard 75-ohm BNC is:
3.标准 75 欧姆 BNC 连接器通常支持的最大频率为：
4.Number of fibers in EIA/TIA 568 multi-fiber connections is:
4.EIA/TIA 568 多光纤连接中的光纤数量为：
5.Which speaker layout is preferred in large or open areas?
5.在大型或开放区域，哪种扬声器布局更佳？
6.Standard method for supporting cabling raceways?
6.支持电缆桥架的标准方法是什么？
7.Best wall placement for speakers?
7.扬声器的最佳墙面安装位置是哪里？
8.Minimum installation height for exposed cable tray?
8.裸露电缆桥架的最小安装高度是多少？
9.Wall to avoid for low-voltage remodeling box?
9.低压改造盒应避免安装在哪种墙面上？
10.How frequently must a communication raceway be supported?
10.通信线槽需要多久支撑一次？
