1.Fire dampers must be located:
1.防火阀必须设置在：
2.Automatic air vents should include a manual ______ valve to allow for servicing or replacement.
2.自动排气阀应包含一个手动______阀，以便进行维护或更换。
3.Air leakage in buildings is often referred to as:
3.建筑物中的空气泄漏通常被称为：
4.Brine circulation is usually accomplished using a ______ pump.
4.盐水循环通常通过使用______泵来实现。
5.Duct construction follows standards set by:
5.风管的制作施工遵循由______制定的标准。
6.Electric heating systems can be categorized as either centralized or ______.
6.电加热系统可分为集中式或______式。
7.The device made of two nested tubes, connected to a water gauge to read total, static, or velocity pressure, is called a:
7.这种由两根套接管组成、并连接到水柱压力计以读取全压、静压或动压的装置被称为：
8.Which type of gauge should be permanently installed with a pigtail or snubber in a piping system?
8.在管道系统中，哪种类型的仪表应通过盘管（pigtail）或缓冲器（snubber）进行永久安装？
9.What is the function of a duct configurator?
9.风管配置器（duct configurator）的功能是什么？
10.The air velocity meter with a cyclometer-style dial (like a household power meter) is known as a:
10.这种带有类似“里程表”式刻度盘（类似于家用电表）的空气流速测量仪被称为：
