Questions and Correct Answers
1. What are the 3 types of heat transfer?
Answer: Conduction, convection, radiation
2. What drives air movement in buildings?
Answer: Pressure differences
3. What is the stack effect?
Answer: Warm air rises, creating pressure differences
4. What is thermal boundary?
Answer: Insulation layer separating conditioned/unconditioned
space
,5. What is pressure boundary?
Answer: Air barrier that controls airflow
6. What is infiltration?
Answer: Uncontrolled air entering a building
7. What is exfiltration?
Answer: Air leaving a building
8. What is relative humidity?
Answer: % of moisture air holds vs max possible
9. Ideal indoor RH range?
Answer: 30–60%
, 10. What is a conditioned space?
Answer: Area heated/cooled intentionally
11. What tool measures air leakage?
Answer: Blower door
12. Standard test pressure?
Answer: 50 Pascals
13. What does CFM50 mean?
Answer: Airflow at 50 Pascals
14. What is ACH50?