BPI Home Energy Professional (HEP) Energy
Auditor Exam Questions With Correct Answers
(Verified Answers) Plus Rationales 2026 Q&A |
Instant Download Pdf
1. What is the primary purpose of a blower door test?
A. To measure duct leakage
B. To measure whole-house air leakage
C. To assess insulation levels
D. To determine HVAC efficiency
Rationale: The blower door test depressurizes or pressurizes the home
to quantify overall air leakage. While it can indirectly reveal duct or
envelope leaks, its main purpose is whole-house air infiltration
assessment.
2. Which of the following is the most significant source of heat loss
in an uninsulated attic?
A. Roof material
B. Air leakage through attic bypasses
, C. Ceiling paint color
D. Solar gain
Rationale: Air leaks from the conditioned space into the attic bypass
insulation and cause the most heat loss, often more than conduction
through the ceiling itself.
3. What is the function of a combustion safety test?
A. To verify insulation R-values
B. To ensure combustion appliances vent properly and do not
create backdraft or carbon monoxide hazards
C. To measure water heater efficiency
D. To determine duct leakage
Rationale: Combustion safety tests check draft, spillage, and CO levels
to ensure that combustion appliances operate safely and vent
correctly.
4. Which diagnostic tool is primarily used to locate air leaks in a
building envelope?
A. Thermocouple
B. Infrared (IR) camera
C. Manometer
D. Watt meter
,Rationale: An infrared camera detects temperature differences that
indicate leaks, missing insulation, or moisture issues in walls and
ceilings.
5. What does the term “thermal bridging” refer to?
A. Heat loss through air leaks
B. Heat transfer through framing members bypassing insulation
C. Insufficient attic insulation
D. Solar heat gain through windows
Rationale: Thermal bridging occurs when conductive materials, like
studs or metal framing, create a direct path for heat to bypass
insulation, reducing overall effectiveness.
6. In the context of energy auditing, what is the recommended
action if a home shows high relative humidity in the basement?
A. Seal all windows
B. Identify moisture sources and improve ventilation or
dehumidification
C. Replace HVAC system
D. Remove insulation
Rationale: High humidity can indicate water intrusion or poor
ventilation. Mitigation should address source and control moisture
without causing building damage.
, 7. Which is considered a “passive” building performance
improvement?
A. Installing a high-efficiency furnace
B. Adding insulation or sealing air leaks
C. Replacing windows with low-E glazing
D. Installing a smart thermostat
Rationale: Passive measures improve the building envelope and
reduce energy use without relying on mechanical systems.
8. When conducting a duct leakage test, the baseline measurement
is taken at:
A. The furnace filter
B. The duct system with the supply and return sealed at the
register level
C. The outdoor vent
D. The main living area
Rationale: The duct system is sealed at the registers to isolate duct
leakage and measure loss accurately using pressure differences.
9. What is the primary cause of backdrafting in combustion
appliances?
A. High-efficiency equipment
B. Negative pressure in the building relative to outdoors
Auditor Exam Questions With Correct Answers
(Verified Answers) Plus Rationales 2026 Q&A |
Instant Download Pdf
1. What is the primary purpose of a blower door test?
A. To measure duct leakage
B. To measure whole-house air leakage
C. To assess insulation levels
D. To determine HVAC efficiency
Rationale: The blower door test depressurizes or pressurizes the home
to quantify overall air leakage. While it can indirectly reveal duct or
envelope leaks, its main purpose is whole-house air infiltration
assessment.
2. Which of the following is the most significant source of heat loss
in an uninsulated attic?
A. Roof material
B. Air leakage through attic bypasses
, C. Ceiling paint color
D. Solar gain
Rationale: Air leaks from the conditioned space into the attic bypass
insulation and cause the most heat loss, often more than conduction
through the ceiling itself.
3. What is the function of a combustion safety test?
A. To verify insulation R-values
B. To ensure combustion appliances vent properly and do not
create backdraft or carbon monoxide hazards
C. To measure water heater efficiency
D. To determine duct leakage
Rationale: Combustion safety tests check draft, spillage, and CO levels
to ensure that combustion appliances operate safely and vent
correctly.
4. Which diagnostic tool is primarily used to locate air leaks in a
building envelope?
A. Thermocouple
B. Infrared (IR) camera
C. Manometer
D. Watt meter
,Rationale: An infrared camera detects temperature differences that
indicate leaks, missing insulation, or moisture issues in walls and
ceilings.
5. What does the term “thermal bridging” refer to?
A. Heat loss through air leaks
B. Heat transfer through framing members bypassing insulation
C. Insufficient attic insulation
D. Solar heat gain through windows
Rationale: Thermal bridging occurs when conductive materials, like
studs or metal framing, create a direct path for heat to bypass
insulation, reducing overall effectiveness.
6. In the context of energy auditing, what is the recommended
action if a home shows high relative humidity in the basement?
A. Seal all windows
B. Identify moisture sources and improve ventilation or
dehumidification
C. Replace HVAC system
D. Remove insulation
Rationale: High humidity can indicate water intrusion or poor
ventilation. Mitigation should address source and control moisture
without causing building damage.
, 7. Which is considered a “passive” building performance
improvement?
A. Installing a high-efficiency furnace
B. Adding insulation or sealing air leaks
C. Replacing windows with low-E glazing
D. Installing a smart thermostat
Rationale: Passive measures improve the building envelope and
reduce energy use without relying on mechanical systems.
8. When conducting a duct leakage test, the baseline measurement
is taken at:
A. The furnace filter
B. The duct system with the supply and return sealed at the
register level
C. The outdoor vent
D. The main living area
Rationale: The duct system is sealed at the registers to isolate duct
leakage and measure loss accurately using pressure differences.
9. What is the primary cause of backdrafting in combustion
appliances?
A. High-efficiency equipment
B. Negative pressure in the building relative to outdoors
