Energy Auditor Practice Exam Questions

BPI Home Energy Professional (HEP) Energy Auditor Practice Exam Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• Which metric is commonly used to measure air leakage in a home during

a blower door test?

A. ACH50

B. SEER

• BTU/hr
• CFM per ton

Answer: A. ACH50

Rationale: ACH50 measures Air Changes per Hour at 50 Pascals, a standard

blower-door leakage metric.

• What is the primary purpose of a combustion safety test? 1 / 4

• Improve air conditioning performance
• Ensure proper duct sizing
• Protect occupants from combustion hazards
• Increase insulation R-value

Answer: C. Protect occupants from combustion hazards

Rationale: The test prevents back-drafting and CO hazards from

combustion appliances.

• Which component loses the most energy in a poorly insulated attic?
• Radiant barriers
• Thermal bridging materials
• Recessed lighting penetrations
• 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:

• Moisture
• Heat flow
• Air pressure
• Radiant light 2 / 4

Answer: B. Heat flow

Rationale: R-value quantifies a material’s thermal resistance.

• What does CFM stand for?
• Cubic Feet per Minute
• Cooling Flow Measurement
• Condensation Formation Method
• 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:

• High utility bills
• Moisture buildup only
• Backdrafting combustion appliances
• Reduced HVAC lifespan

Answer: C. Backdrafting combustion appliances

Rationale: Negative pressure can reverse flue gas flow into living spaces.

• What is an example of conductive heat loss? 3 / 4

• Air leaking around a door
• Heat transfer through windows
• Sun warming a roof
• Stack effect

Answer: B. Heat transfer through windows

Rationale: Conduction transfers heat through solid materials.

• Which inspection tool is used to identify insulation voids?
• Thermal imaging camera
• Anemometer
• Manometer
• Psychrometer

Answer: A. Thermal imaging camera

Rationale: Cameras detect temperature differences showing missing

insulation.

• What gas is most concerning in combustion safety testing?
• Oxygen
• Nitrogen
• Carbon monoxide
• Carbon dioxide
• / 4