BPI Home Energy Professional (HEP)
Energy Auditor Practice Exam Questions
And Correct Answers (Verified Answers)
Plus Rationales 2026 Q&A | Instant
Download Pdf
1. Which metric is commonly used to measure air leakage in a home during
a blower door test?
A. ACH50
B. SEER
C. BTU/hr
D. CFM per ton
Answer: A. ACH50
Rationale: ACH50 measures Air Changes per Hour at 50 Pascals, a standard
blower-door leakage metric.
2. What is the primary purpose of a combustion safety test?
,A. Improve air conditioning performance
B. Ensure proper duct sizing
C. Protect occupants from combustion hazards
D. Increase insulation R-value
Answer: C. Protect occupants from combustion hazards
Rationale: The test prevents back-drafting and CO hazards from
combustion appliances.
3. Which component loses the most energy in a poorly insulated attic?
A. Radiant barriers
B. Thermal bridging materials
C. Recessed lighting penetrations
D. Gable vents
Answer: C. Recessed lighting penetrations
Rationale: Penetrations allow major air leakage, reducing insulation
effectiveness.
4. In insulation, R-value refers to resistance to:
A. Moisture
B. Heat flow
C. Air pressure
D. Radiant light
,Answer: B. Heat flow
Rationale: R-value quantifies a material’s thermal resistance.
5. What does CFM stand for?
A. Cubic Feet per Minute
B. Cooling Flow Measurement
C. Condensation Formation Method
D. Climate Factor Multiplier
Answer: A. Cubic Feet per Minute
Rationale: CFM measures airflow volume per minute.
6. The main risk of depressurization in a home is:
A. High utility bills
B. Moisture buildup only
C. Backdrafting combustion appliances
D. Reduced HVAC lifespan
Answer: C. Backdrafting combustion appliances
Rationale: Negative pressure can reverse flue gas flow into living spaces.
7. What is an example of conductive heat loss?
, A. Air leaking around a door
B. Heat transfer through windows
C. Sun warming a roof
D. Stack effect
Answer: B. Heat transfer through windows
Rationale: Conduction transfers heat through solid materials.
8. Which inspection tool is used to identify insulation voids?
A. Thermal imaging camera
B. Anemometer
C. Manometer
D. Psychrometer
Answer: A. Thermal imaging camera
Rationale: Cameras detect temperature differences showing missing
insulation.
9. What gas is most concerning in combustion safety testing?
A. Oxygen
B. Nitrogen
C. Carbon monoxide
D. Carbon dioxide
Energy Auditor Practice Exam Questions
And Correct Answers (Verified Answers)
Plus Rationales 2026 Q&A | Instant
Download Pdf
1. Which metric is commonly used to measure air leakage in a home during
a blower door test?
A. ACH50
B. SEER
C. BTU/hr
D. CFM per ton
Answer: A. ACH50
Rationale: ACH50 measures Air Changes per Hour at 50 Pascals, a standard
blower-door leakage metric.
2. What is the primary purpose of a combustion safety test?
,A. Improve air conditioning performance
B. Ensure proper duct sizing
C. Protect occupants from combustion hazards
D. Increase insulation R-value
Answer: C. Protect occupants from combustion hazards
Rationale: The test prevents back-drafting and CO hazards from
combustion appliances.
3. Which component loses the most energy in a poorly insulated attic?
A. Radiant barriers
B. Thermal bridging materials
C. Recessed lighting penetrations
D. Gable vents
Answer: C. Recessed lighting penetrations
Rationale: Penetrations allow major air leakage, reducing insulation
effectiveness.
4. In insulation, R-value refers to resistance to:
A. Moisture
B. Heat flow
C. Air pressure
D. Radiant light
,Answer: B. Heat flow
Rationale: R-value quantifies a material’s thermal resistance.
5. What does CFM stand for?
A. Cubic Feet per Minute
B. Cooling Flow Measurement
C. Condensation Formation Method
D. Climate Factor Multiplier
Answer: A. Cubic Feet per Minute
Rationale: CFM measures airflow volume per minute.
6. The main risk of depressurization in a home is:
A. High utility bills
B. Moisture buildup only
C. Backdrafting combustion appliances
D. Reduced HVAC lifespan
Answer: C. Backdrafting combustion appliances
Rationale: Negative pressure can reverse flue gas flow into living spaces.
7. What is an example of conductive heat loss?
, A. Air leaking around a door
B. Heat transfer through windows
C. Sun warming a roof
D. Stack effect
Answer: B. Heat transfer through windows
Rationale: Conduction transfers heat through solid materials.
8. Which inspection tool is used to identify insulation voids?
A. Thermal imaging camera
B. Anemometer
C. Manometer
D. Psychrometer
Answer: A. Thermal imaging camera
Rationale: Cameras detect temperature differences showing missing
insulation.
9. What gas is most concerning in combustion safety testing?
A. Oxygen
B. Nitrogen
C. Carbon monoxide
D. Carbon dioxide
