ALABAMA HPC EXAM PREP 2026 | Latest
Questions & 100% Verified Answers | Complete
Solutions Study Guide | A+ Guaranteed Pass
ALABAMA HPC EXAM PREP 2026
Latest Questions & 100% Verified Answers | Complete Solutions Study Guide | A+
Guaranteed Pass
QUESTION 1 What does HPC stand for in the context of Alabama licensing?
A) High Performance Computing
B) Home Performance Contractor
C) Home Performance Contracting
D) Housing Professional Certification
E) Heating and Plumbing Contractor
CORRECT ANSWER: C) Home Performance Contracting RATIONALE: HPC
stands for Home Performance Contracting, which refers to a comprehensive approach
to improving residential energy efficiency, comfort, and safety through systematic
assessment and upgrades.
QUESTION 2 Which federal agency primarily oversees energy efficiency standards for
residential buildings in the U.S.?
A) EPA
B) FEMA
C) DOE (Department of Energy)
D) HUD
E) OSHA
CORRECT ANSWER: C) DOE (Department of Energy) RATIONALE: The U.S.
Department of Energy (DOE) is the primary federal agency responsible for setting and
overseeing energy efficiency standards and programs for residential buildings, including
the Weatherization Assistance Program.
,QUESTION 3 What is the primary purpose of a blower door test?
A) To measure indoor air quality
B) To test HVAC efficiency
C) To measure the airtightness of a building envelope
D) To identify moisture intrusion points
E) To measure duct leakage
CORRECT ANSWER: C) To measure the airtightness of a building envelope
RATIONALE: A blower door test depressurizes a home using a calibrated fan
mounted in a doorway to measure how much air leaks through the building envelope,
helping identify areas needing air sealing.
QUESTION 4 Which unit is used to express the results of a blower door test?
A) BTU/hr
B) MERV
C) CFM50
D) SEER
E) ACH50
CORRECT ANSWER: C) CFM50 RATIONALE: CFM50 (Cubic Feet per Minute at 50
Pascals) is the standard unit used to express blower door test results, representing the
volume of air flowing through the building envelope at 50 Pascals of pressure
difference.
QUESTION 5 What does ACH50 measure?
A) Air cooling hours at 50 degrees
B) Annual conditioning hours at 50% humidity
C) Air changes per hour at 50 Pascals
D) Air cooling head at 50 BTUs
,E) Airflow capacity of HVAC at 50%
CORRECT ANSWER: C) Air changes per hour at 50 Pascals RATIONALE: ACH50
measures how many times the entire volume of air in a home is replaced per hour when
the building is depressurized to 50 Pascals, indicating the overall airtightness of the
structure.
QUESTION 6 What is the primary goal of a Home Energy Audit?
A) To sell new HVAC equipment
B) To comply with local zoning laws
C) To identify energy efficiency improvements and prioritize upgrades
D) To assess property value
E) To verify building code compliance
CORRECT ANSWER: C) To identify energy efficiency improvements and prioritize
upgrades RATIONALE: A Home Energy Audit systematically evaluates a home's
energy use and identifies cost-effective improvements to reduce energy consumption,
improve comfort, and lower utility bills.
QUESTION 7 Which of the following best describes a "thermal envelope"?
A) An insulated HVAC duct system
B) A type of vapor barrier
C) The combination of building components that separate conditioned from
unconditioned space
D) A radiant heating system
E) A weatherization grant program
CORRECT ANSWER: C) The combination of building components that separate
conditioned from unconditioned space RATIONALE: The thermal envelope
includes the walls, roof, foundation, windows, and doors that separate conditioned living
space from unconditioned areas or the exterior, forming a barrier against heat transfer.
QUESTION 8 What does the term "infiltration" refer to in home performance?
, A) Water entering through roof leaks
B) Pest infestation through wall gaps
C) Uncontrolled air leakage into a building
D) Moisture migration through walls
E) Heat transfer through windows
CORRECT ANSWER: C) Uncontrolled air leakage into a building RATIONALE:
Infiltration refers to the uncontrolled entry of outside air into a building through cracks,
gaps, and other openings in the building envelope, which can significantly impact
energy efficiency and comfort.
QUESTION 9 What is the R-value a measurement of?
A) Reflectivity of roofing materials
B) Relative humidity in insulation
C) Thermal resistance of insulation
D) Rate of air infiltration
E) Radiant heat gain through glass
CORRECT ANSWER: C) Thermal resistance of insulation RATIONALE: R-value
measures the thermal resistance of an insulating material — the higher the R-value, the
greater the insulation's ability to resist heat transfer, making it a critical specification for
energy-efficient construction.
QUESTION 10 Which type of insulation is commonly blown into attics and wall cavities?
A) Rigid foam board
B) Spray polyurethane foam
C) Loose-fill cellulose or fiberglass
D) Mineral wool batts
E) Reflective foil insulation
CORRECT ANSWER: C) Loose-fill cellulose or fiberglass RATIONALE: Loose-fill
cellulose and fiberglass are commonly blown into attics and existing wall cavities
Questions & 100% Verified Answers | Complete
Solutions Study Guide | A+ Guaranteed Pass
ALABAMA HPC EXAM PREP 2026
Latest Questions & 100% Verified Answers | Complete Solutions Study Guide | A+
Guaranteed Pass
QUESTION 1 What does HPC stand for in the context of Alabama licensing?
A) High Performance Computing
B) Home Performance Contractor
C) Home Performance Contracting
D) Housing Professional Certification
E) Heating and Plumbing Contractor
CORRECT ANSWER: C) Home Performance Contracting RATIONALE: HPC
stands for Home Performance Contracting, which refers to a comprehensive approach
to improving residential energy efficiency, comfort, and safety through systematic
assessment and upgrades.
QUESTION 2 Which federal agency primarily oversees energy efficiency standards for
residential buildings in the U.S.?
A) EPA
B) FEMA
C) DOE (Department of Energy)
D) HUD
E) OSHA
CORRECT ANSWER: C) DOE (Department of Energy) RATIONALE: The U.S.
Department of Energy (DOE) is the primary federal agency responsible for setting and
overseeing energy efficiency standards and programs for residential buildings, including
the Weatherization Assistance Program.
,QUESTION 3 What is the primary purpose of a blower door test?
A) To measure indoor air quality
B) To test HVAC efficiency
C) To measure the airtightness of a building envelope
D) To identify moisture intrusion points
E) To measure duct leakage
CORRECT ANSWER: C) To measure the airtightness of a building envelope
RATIONALE: A blower door test depressurizes a home using a calibrated fan
mounted in a doorway to measure how much air leaks through the building envelope,
helping identify areas needing air sealing.
QUESTION 4 Which unit is used to express the results of a blower door test?
A) BTU/hr
B) MERV
C) CFM50
D) SEER
E) ACH50
CORRECT ANSWER: C) CFM50 RATIONALE: CFM50 (Cubic Feet per Minute at 50
Pascals) is the standard unit used to express blower door test results, representing the
volume of air flowing through the building envelope at 50 Pascals of pressure
difference.
QUESTION 5 What does ACH50 measure?
A) Air cooling hours at 50 degrees
B) Annual conditioning hours at 50% humidity
C) Air changes per hour at 50 Pascals
D) Air cooling head at 50 BTUs
,E) Airflow capacity of HVAC at 50%
CORRECT ANSWER: C) Air changes per hour at 50 Pascals RATIONALE: ACH50
measures how many times the entire volume of air in a home is replaced per hour when
the building is depressurized to 50 Pascals, indicating the overall airtightness of the
structure.
QUESTION 6 What is the primary goal of a Home Energy Audit?
A) To sell new HVAC equipment
B) To comply with local zoning laws
C) To identify energy efficiency improvements and prioritize upgrades
D) To assess property value
E) To verify building code compliance
CORRECT ANSWER: C) To identify energy efficiency improvements and prioritize
upgrades RATIONALE: A Home Energy Audit systematically evaluates a home's
energy use and identifies cost-effective improvements to reduce energy consumption,
improve comfort, and lower utility bills.
QUESTION 7 Which of the following best describes a "thermal envelope"?
A) An insulated HVAC duct system
B) A type of vapor barrier
C) The combination of building components that separate conditioned from
unconditioned space
D) A radiant heating system
E) A weatherization grant program
CORRECT ANSWER: C) The combination of building components that separate
conditioned from unconditioned space RATIONALE: The thermal envelope
includes the walls, roof, foundation, windows, and doors that separate conditioned living
space from unconditioned areas or the exterior, forming a barrier against heat transfer.
QUESTION 8 What does the term "infiltration" refer to in home performance?
, A) Water entering through roof leaks
B) Pest infestation through wall gaps
C) Uncontrolled air leakage into a building
D) Moisture migration through walls
E) Heat transfer through windows
CORRECT ANSWER: C) Uncontrolled air leakage into a building RATIONALE:
Infiltration refers to the uncontrolled entry of outside air into a building through cracks,
gaps, and other openings in the building envelope, which can significantly impact
energy efficiency and comfort.
QUESTION 9 What is the R-value a measurement of?
A) Reflectivity of roofing materials
B) Relative humidity in insulation
C) Thermal resistance of insulation
D) Rate of air infiltration
E) Radiant heat gain through glass
CORRECT ANSWER: C) Thermal resistance of insulation RATIONALE: R-value
measures the thermal resistance of an insulating material — the higher the R-value, the
greater the insulation's ability to resist heat transfer, making it a critical specification for
energy-efficient construction.
QUESTION 10 Which type of insulation is commonly blown into attics and wall cavities?
A) Rigid foam board
B) Spray polyurethane foam
C) Loose-fill cellulose or fiberglass
D) Mineral wool batts
E) Reflective foil insulation
CORRECT ANSWER: C) Loose-fill cellulose or fiberglass RATIONALE: Loose-fill
cellulose and fiberglass are commonly blown into attics and existing wall cavities
