1.Front speakers should be mounted at what height?
1.前置扬声器应该安装在什么高度？
2.Minimum distance between communications cabling & lightning conductors?
2.通信电缆与避雷针之间的最小距离是多少？
3.Cabling linking two separate buildings belongs to which subsystem?
3.连接两栋独立建筑的布线属于哪个子系统？
4.According to EIA/TIA-568 standards, which is correct for a Type B multi-fiber link?
4.根据 EIA/TIA-568 标准，以下哪项对于 B 型多光纤链路是正确的？
5.Where does structured cabling start in a building?
5.建筑物中的结构化布线从哪里开始？
6.RG6 coax standard impedance is:
6.RG6 同轴电缆的标准阻抗是多少？
7.What is the minimum bend radius to prevent performance loss in a twisted-pair cable?
7.为了防止双绞线电缆性能下降，最小弯曲半径是多少？
8.Minimum bend radius for fiber optic cable under tension is:
8.光纤电缆在张力下的最小弯曲半径为：
9.Which wiring layout is NOT recommended for high-speed data?
9.以下哪种布线布局不推荐用于高速数据传输？
10.Max transmission frequency for a 50-ohm BNC connector is:
10.50欧姆BNC连接器的最大传输频率为：
