第四章管道终端安装

1.What is the primary focus of California water conservation regulations? 1.在加州管道系统中，节水法规的核心对象是？

A. Water supply pressure A. 供水压力

B. Water-saving performance of piping fixtures B. 管道装置的节水性能

C. Pipe color C. 管道颜色

D. Pipe laying depth D. 管道铺设深度

2.What must be installed in new construction and permit-required renovation projects? 2.对于新建和需许可的翻新项目，必须安装？

A. Seismic shut-off valve A. 地震感应式截止阀

B. Smart alarm light B. 智能报警灯

C. Backup water tank C. 备用水箱

D. Pressure gauge D. 压力表

3.What is the core requirement for solar or heat pump system installation? 3.太阳能或热泵系统安装的核心要求是？

A. Must use copper piping only A. 只能用铜管

B. Must be aesthetically pleasing B. 必须美观

C. Must comply with Title 24 energy efficiency standards C. 必须符合Title 24节能标准

D. Must be installed on the roof D. 必须安装在屋顶

4.What is the rule for medium flow direction during valve installation? 4.在安装阀门时，介质流动方向的要求是？

A. Must comply with the flow direction indication (reverse installation strictly prohibited) A. 必须符合流向指示（严禁反向）

B. Reverse installation is permitted B. 可以反向

C. Can be installed in any orientation C. 随便安装

D. Vertical installation is sufficient D. 垂直即可

5.What is the labeling requirement for emergency valves? 5.紧急阀门应具备的标识要求是？

A. Hidden behind the door A. 隐藏在门后

B. Clearly visible B. 清晰可见

C. No signage required C. 无需标识

D. Same color as the wall D. 颜色与墙壁相同

6.Due to multiple water points, what is the requirement for commercial piping? 6.商业系统用水点多，对管道安装有什么要求？

A. The higher the better A. 越高越好

B. High requirements for aesthetics and compliance B. 美观性及合规性要求高

C. No compliance required C. 无需合规

D. Use the cheapest materials D. 使用最廉价材料

7.What should be checked every 3-6 months in maintenance? 7.维护中建议每3-6个月进行一次哪项检查？

A. Pipe rust A. 管道锈迹

B. Valve seals B. 阀门密封件

C. Water bills C. 水费账单

D. Outside air temperature D. 外部气温

8.Besides seismic securing, what should be prioritized in earthquake zones? 8.在地震区域，除了抗震固定，还应优先考虑？

A. Flexible connectors A. 柔性连接件

B. Use lightweight piping B. 使用轻型管

C. Reduce the number of valves C. 减少阀门

D. Install a display screen D. 安装显示屏

9.What will happen if storage water heaters are not cleaned? 9.如果不定期清洗储水式热水器，会导致什么？

A. Automatic shutdown A. 自动关机

B. Pressure increases B. 压力变大

C. Water volume increases C. 水量增加

D. Limescale buildup affects efficiency D. 水垢沉积影响效率