1.The maximum run length allowed for a home dryer vent is:
1.家用烘干机排气管允许的最大长度为：
2.With 68°F indoors, 62°F outdoors, and a U-value of 1.13, the 24-hour heat loss through a 6 sq. ft. window is:
2.在室内温度68°F、室外温度62°F且U值（传热系数）为1.13的条件下，一块6平方英尺的窗户在24小时内的热损失为：
3.Given an indoor temperature of 75°F, outdoor 50°F, U = 1.13, and area = 12² sq. ft., the hourly heat loss is approximately:
3.已知室内温度为75°F、室外温度为50°F、U值=1.13且面积=12²平方英尺，则每小时的热损失约为：
4.Residential baseboard heating elements typically use tubing sized from ______ inch up to 1 inch within aluminum fins.
4.住宅用踢脚线加热元件通常采用管径介于 ______ 英寸至1英寸之间的管道，并套有铝制散热片。
5.Which instrument gives a direct reading of relative humidity?
5.哪种仪器可以直接读出相对湿度？
6.A poorly insulated space of 20,900 cu. ft. needs 5.5 BTU/h per cu. ft. to heat. What heat pump size is required?
6.一个隔热性能较差、体积为20,900立方英尺的空间，每立方英尺需要5.5 BTU/h的热量进行加热。请问需要多大规格的热泵？
7.A(n) ______ approach for combined cooling and heating uses cabinet fan-coil units with chilled water in summer and finned tubes with warm water in winter.
7.一种用于冷热联合供应的______方案，在夏季使用通有冷水的柜式风机盘管机组，在冬季则使用通有热水的翅片管。
8.If cooling load drops too low, suction pressure may fall until the evaporator temperature:
8.如果制冷负荷降得过低，吸气压力可能会随之下降，直至蒸发器温度：
9.The most widely used gas fuel for comfort heating systems is:
9.用于舒适性供暖系统的最广泛使用的气体燃料是：
10.___heat alters a substance’s state without always changing its temperature.
10.______热能改变物质的状态，但并不总是改变其温度。
