HVAC Science

2. How much air can we expect to lose if there is one loose screw in the air handler cabinet?

3. Why does a scale or gauge show 0 if the air around it has mass?

4. True or False: Scientists have always known that vacuum is a reduction of pressure and doesn't provide its own force.

5. What does water do in an HVAC system?

6. What is the refrigerant name for water?

7. If we pull a vacuum on a larger container full of air, it will take longer to pull a deep vacuum. Why?

8. When you measure compression ratio, you have to divide the absolute head pressure by the absolute suction pressure. How do we turn head and suction pressure into absolute measurements?

9. When we pressurize a room, how does the air behave?

10. If you were to drop a magnet down a PVC pipe and copper pipe of equal length and diameter, the magnet would fall down the copper pipe more slowly. Which scientific law dictates this phenomenon?