第二章管道系统

1.How many fixtures can one vertical wet vent typically serve? 1.一根垂直湿式通气管通常可以服务多少个设备？

A. 1 A. 1

B. 3 B. 3

C. 4 C. 4

D. 8 D. 8

2.Which type of fitting is used to connect an ejector pump discharge to a horizontal main line? 2.将污水提升泵出水口连接到水平主管道时应使用哪种管件？

A. Wye fitting A. 三通斜接头

B. Straight connector B. 直通接头

C. Access plug C. 清扫口

D. None of these D. 以上都不是

3.Where to connect multiple gas appliances to a shared vent? 3.多个燃气器具应连接到共用烟道的哪个位置？

A. Highest point A. 最高点

B. Closer to the first appliance B. 靠近第一个器具

C. Closer to the second appliance C. 靠近第二个器具

D. Center of the longest vent D. 最长烟道的中心

4.What is “greywater”? 4.什么是“灰水”？

A. Water not in contact with feces A. 未接触粪便的水

B. Grey-colored water B. 灰色的水

C. City-to-building water connection C. 城市与建筑物之间的供水管

D. Rainwater (weather term) D. 雨水（气象术语）

5.How should a chemical waste vent be installed? 5.化学废水排气管应如何安装？

A. Independent of sanitary waste A. 独立于生活污水系统

B. Connected to the water main B. 连接到总水管

C. Made of soldered brass pipe C. 用焊接黄铜管制作

D. All of the above D. 以上全部

6.Which requires potable water? 6.哪项需要饮用水？

A. Building water supply A. 建筑供水系统

B. Wastewater from fixtures B. 卫生器具排放的废水

C. Grey water C. 灰水

D. Reused laundry water D. 重复使用的洗衣水

7.What does a purple pipe carry? 7.紫色管道输送什么？

A. Potable water A. 饮用水

B. Non-potable water B. 非饮用水

C. Natural gas C. 天然气

D. LP gas D. 液化石油气

8.What’s the minimum toilet drain pipe size in a home? 8.住宅中马桶排水管的最小管径是多少？

A. 3 inches A. 3 英寸

B. 3/4 inches B. 3/4 英寸

C. 3/8 inches C. 3/8 英寸

D. 1/2 inches D. 1/2 英寸

9.Where are cleanouts most commonly located? 9.清理点最常位于哪里？

A. Sewer drain bends A. 下水道排水弯头

B. Water heater gas pipes B. 热水器煤气管道

C. Water heater gas pipes C. 供水管道

D. All of the above D. 以上皆是

10.Which fitting is used to connect a building drain to the main sewer line? 10.将建筑排水管连接到市政下水道应使用哪种管件？

A. Flexible expansion connector A. 弹性伸缩接头

B. Cleanout B. 清扫口

C. Coupling C. 管箍

D. None of the above D. 以上都不是

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