Exam Questions And Correct Answers

Building Performance Institute (BPI) Building Analyst Certification Practice Exam Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

1) Which measurement is used to assess building airtightness using a blower door test?

• Cubic feet per minute at 50 Pascals (CFM50)
• Relative humidity percentage
• Cooling load in BTU/hr
• Stack temperature

Correct Answer: A — CFM50

Rationale: CFM50 is the standardized measure of airflow through leaks

under a 50 Pascal pressure difference.

2) What is the primary driver of air leakage in buildings? 1 / 4

• Wind
• Stack effect
• Mechanical systems
• All of the above

Correct Answer: D — All of the above

Rationale: All three create pressure differentials that move air through

building leaks.

3) The recommended worst-case depressurization limit for a natural draft

water heater appliance zone is:

• –3 Pa
• –5 Pa
• –2 Pa
• 0 Pa

Correct Answer: C — –2 Pa

Rationale: BPI standards limit depressurization to prevent backdrafting

and CO risks.

4) Which gas is most concerning due to incomplete combustion?

• Oxygen
• Nitrogen
• Carbon monoxide 2 / 4

• Argon

Correct Answer: C — Carbon monoxide

Rationale: CO is a toxic byproduct of incomplete combustion and must be

monitored.

5) What type of pressure does a blower door create during testing?

• Positive pressure only
• Negative pressure only
• Either positive or negative depending on setup
• Pressureless calibration

Correct Answer: C

Rationale: Blower doors can depressurize or pressurize to assess leakage.

6) Which area should be prioritized for air sealing?

• Windows
• Attic plane
• Doors
• Exterior wall siding

Correct Answer: B — Attic plane

Rationale: Largest leakage typically occurs at the top of the home due to

stack effect.

• / 4

7) The term R-value represents:

• Heat transfer rate
• Resistance to heat flow
• Moisture retention
• Fire resistance

Correct Answer: B

R-value measures insulation’s thermal resistance; higher R-value = more resistance.

8) Which instrument measures CO levels in ambient air?

• Manometer
• Carbon monoxide analyzer
• Hygrometer
• Anemometer

Correct Answer: B

Rationale: CO analyzers detect toxic CO in the breathing zone.

9) A spillage test for combustion appliances must be done:

• With windows wide open
• HVAC off only
• Under worst-case depressurization
• Under neutral pressure
• / 4