1. At sea level, every square inch of the earth has an absolute pressure of _____.

2. The lowest air pressure in an air distribution system is found at the _____.

3. Compared to an air handler located in a high mountain cabin, what are the airflow requirements per ton of cooling of an identical air handler installed in a seaside cottage?

4. A ratio expressed in percentage of the amount of moisture present in the air to the amount it can hold at saturation is called _____.

5. The measure of the weight of air in pounds for every cubic foot of space occupied by air is called its _____.

6. What scale on a psychrometric chart can also be referred to as the sensible heat scale?

7. The term that describes the horizontal divergence of an airstream after it leaves the outlet is called the _____.

8. Entrainment is a term often used to describe _____.

9. Which of the following statements is true?

10. The inner impact tube of a pitot tube measures _____.

11. If the speed of a blower used to move air through a duct is decreased, the horsepower requirement of the motor _____.

12. What is the maximum distance between pitot tube measuring points in rectangular ducts?

13. The values needed to calculate air volume (cfm) delivered by an air handler equipped with electric heaters are _____.

14. How many duct diameters of length upstream from turns or obstructions is required in a straight round duct to obtain an accurate reading with a pitot tube?

15. In a mixed air system, the amount of fresh air needed can be calculated if you know _____.