BPI HOME ENERGY PROFESSIONAL
(HEP) ENERGY AUDITOR EXAM
QUESTION AND 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 the airtightness of a building
C) To calculate heating load
D) To inspect insulation levels
Rationale: Blower door tests pressurize or depressurize a home to quantify
air leakage, which identifies opportunities for air sealing.
2. Which type of heat transfer occurs through a solid material without the
movement of the material itself?
A) Convection
B) Radiation
C) Conduction
D) Advection
Rationale: Conduction is the transfer of heat through a material by direct
molecular contact.
3. A home with high stack effect is likely to have:
A) Increased energy efficiency
B) Significant air leakage through the attic and basement
C) Reduced moisture issues
D) Better indoor air quality
, Rationale: Stack effect drives warm air upward in winter, creating leaks at
the top and bottom of a building.
4. Which instrument measures relative humidity?
A) Manometer
B) Anemometer
C) Thermocouple
D) Hygrometer
Rationale: A hygrometer provides relative humidity readings, crucial for
assessing moisture-related energy issues.
5. When performing a combustion safety test, what is a key measurement?
A) Duct velocity
B) Combustion gas concentrations
C) Window U-factor
D) Roof R-value
Rationale: Measuring combustion gases ensures appliances do not produce
unsafe levels of CO or other dangerous gases.
6. Which insulation type is most likely to settle over time, reducing R-value?
A) Rigid foam
B) Spray foam
C) Loose-fill fiberglass
D) Mineral wool batts
Rationale: Loose-fill insulation can settle, leaving gaps that reduce thermal
performance.
7. The main benefit of air sealing a home is:
A) Increased ventilation
B) Reduced insulation needs
C) Lower energy consumption
D) Higher stack effect
Rationale: Air sealing reduces uncontrolled airflow, improving energy
efficiency and comfort.
, 8. What is the first step in conducting a home energy audit?
A) Perform a blower door test
B) Collect building and energy use data
C) Seal all air leaks
D) Install insulation
Rationale: A thorough audit begins with reviewing utility bills, building
characteristics, and occupant behavior.
9. What is the typical R-value of 3.5-inch fiberglass batt insulation?
A) R-5
B) R-11
C) R-19
D) R-30
Rationale: Standard 3.5-inch fiberglass batts provide approximately R-11
thermal resistance.
10.Which diagnostic tool is most useful for detecting hidden air leaks?
A) Multimeter
B) Hygrometer
C) Infrared camera
D) Smoke pencil
Rationale: Infrared cameras visualize temperature differences, revealing air
leaks and insulation gaps.
11.What is the key function of a heat pump in a home?
A) Only heating
B) Only cooling
C) Providing both heating and cooling efficiently
D) Humidity control only
Rationale: Heat pumps transfer heat between indoors and outdoors, serving
as both heater and cooler.
12.When testing duct leakage, where should the blower door be installed?
A) Outside the house
B) At the main supply or return duct
(HEP) ENERGY AUDITOR EXAM
QUESTION AND 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 the airtightness of a building
C) To calculate heating load
D) To inspect insulation levels
Rationale: Blower door tests pressurize or depressurize a home to quantify
air leakage, which identifies opportunities for air sealing.
2. Which type of heat transfer occurs through a solid material without the
movement of the material itself?
A) Convection
B) Radiation
C) Conduction
D) Advection
Rationale: Conduction is the transfer of heat through a material by direct
molecular contact.
3. A home with high stack effect is likely to have:
A) Increased energy efficiency
B) Significant air leakage through the attic and basement
C) Reduced moisture issues
D) Better indoor air quality
, Rationale: Stack effect drives warm air upward in winter, creating leaks at
the top and bottom of a building.
4. Which instrument measures relative humidity?
A) Manometer
B) Anemometer
C) Thermocouple
D) Hygrometer
Rationale: A hygrometer provides relative humidity readings, crucial for
assessing moisture-related energy issues.
5. When performing a combustion safety test, what is a key measurement?
A) Duct velocity
B) Combustion gas concentrations
C) Window U-factor
D) Roof R-value
Rationale: Measuring combustion gases ensures appliances do not produce
unsafe levels of CO or other dangerous gases.
6. Which insulation type is most likely to settle over time, reducing R-value?
A) Rigid foam
B) Spray foam
C) Loose-fill fiberglass
D) Mineral wool batts
Rationale: Loose-fill insulation can settle, leaving gaps that reduce thermal
performance.
7. The main benefit of air sealing a home is:
A) Increased ventilation
B) Reduced insulation needs
C) Lower energy consumption
D) Higher stack effect
Rationale: Air sealing reduces uncontrolled airflow, improving energy
efficiency and comfort.
, 8. What is the first step in conducting a home energy audit?
A) Perform a blower door test
B) Collect building and energy use data
C) Seal all air leaks
D) Install insulation
Rationale: A thorough audit begins with reviewing utility bills, building
characteristics, and occupant behavior.
9. What is the typical R-value of 3.5-inch fiberglass batt insulation?
A) R-5
B) R-11
C) R-19
D) R-30
Rationale: Standard 3.5-inch fiberglass batts provide approximately R-11
thermal resistance.
10.Which diagnostic tool is most useful for detecting hidden air leaks?
A) Multimeter
B) Hygrometer
C) Infrared camera
D) Smoke pencil
Rationale: Infrared cameras visualize temperature differences, revealing air
leaks and insulation gaps.
11.What is the key function of a heat pump in a home?
A) Only heating
B) Only cooling
C) Providing both heating and cooling efficiently
D) Humidity control only
Rationale: Heat pumps transfer heat between indoors and outdoors, serving
as both heater and cooler.
12.When testing duct leakage, where should the blower door be installed?
A) Outside the house
B) At the main supply or return duct
