Page 1 of 111
BPI Home Energy Professional (HEP) Energy Auditor exam
COMPLETE QUESTIONS AND DETAILED SOLUTIONS LATEST
UPDATE THIS YEAR-JUST RELEASED
SUMMARIZED EXAM COVERAGE
The BPI HEP Energy Auditor exam focuses on building science principles, energy loss mechanisms,
diagnostic testing tools, HVAC system evaluation, combustion safety, moisture and air quality issues,
and energy efficiency improvements. Candidates must interpret building performance data, identify
inefficiencies, and recommend safe, cost-effective retrofit measures while maintaining occupant health
and safety.
MCQs (1–50) – SCENARIO BASED, ≥15 WORDS, WITH ANSWERS & RATIONALES
1.
An auditor finds high energy bills and suspects uncontrolled air leakage in the home. What tool is most
appropriate for diagnosis?
A. Thermometer
B. Blower door test
, Page 2 of 111
C. Hygrometer only
D. Voltage tester
Answer: B
Rationale: Blower door testing quantifies air leakage and building tightness.
2.
During a blower door test, pressure drops significantly when exhaust fans are turned on. What does this
indicate?
A. Proper sealing
B. Increased depressurization due to added exhaust load
C. No air leakage
D. HVAC overperformance
Answer: B
Rationale: Exhaust devices increase negative pressure and infiltration.
3.
, Page 3 of 111
An auditor observes condensation forming on windows in winter. What is the most likely cause?
A. Excess insulation
B. High indoor humidity and poor thermal performance
C. Overheating HVAC system
D. Excess ventilation
Answer: B
Rationale: Moist air condenses on cold surfaces due to humidity imbalance.
4.
A home has cold drafts near floors during winter. What building science principle explains this?
A. Radiation
B. Stack effect and air infiltration
C. Electrical resistance
D. Latent heat only
Answer: B
Rationale: Cold air infiltration is driven by pressure differences and stack effect.
, Page 4 of 111
5.
An auditor identifies high ACH50 results during testing. What does this mean?
A. Very tight building
B. High air leakage rate
C. No ventilation needed
D. HVAC oversizing
Answer: B
Rationale: High ACH50 indicates significant air leakage.
6.
A furnace backdrafts combustion gases into the home. What is the primary safety concern?
A. Improved efficiency
B. Carbon monoxide exposure risk
C. Better air quality
D. Reduced humidity
Answer: B
Rationale: Backdrafting introduces harmful combustion gases indoors.
BPI Home Energy Professional (HEP) Energy Auditor exam
COMPLETE QUESTIONS AND DETAILED SOLUTIONS LATEST
UPDATE THIS YEAR-JUST RELEASED
SUMMARIZED EXAM COVERAGE
The BPI HEP Energy Auditor exam focuses on building science principles, energy loss mechanisms,
diagnostic testing tools, HVAC system evaluation, combustion safety, moisture and air quality issues,
and energy efficiency improvements. Candidates must interpret building performance data, identify
inefficiencies, and recommend safe, cost-effective retrofit measures while maintaining occupant health
and safety.
MCQs (1–50) – SCENARIO BASED, ≥15 WORDS, WITH ANSWERS & RATIONALES
1.
An auditor finds high energy bills and suspects uncontrolled air leakage in the home. What tool is most
appropriate for diagnosis?
A. Thermometer
B. Blower door test
, Page 2 of 111
C. Hygrometer only
D. Voltage tester
Answer: B
Rationale: Blower door testing quantifies air leakage and building tightness.
2.
During a blower door test, pressure drops significantly when exhaust fans are turned on. What does this
indicate?
A. Proper sealing
B. Increased depressurization due to added exhaust load
C. No air leakage
D. HVAC overperformance
Answer: B
Rationale: Exhaust devices increase negative pressure and infiltration.
3.
, Page 3 of 111
An auditor observes condensation forming on windows in winter. What is the most likely cause?
A. Excess insulation
B. High indoor humidity and poor thermal performance
C. Overheating HVAC system
D. Excess ventilation
Answer: B
Rationale: Moist air condenses on cold surfaces due to humidity imbalance.
4.
A home has cold drafts near floors during winter. What building science principle explains this?
A. Radiation
B. Stack effect and air infiltration
C. Electrical resistance
D. Latent heat only
Answer: B
Rationale: Cold air infiltration is driven by pressure differences and stack effect.
, Page 4 of 111
5.
An auditor identifies high ACH50 results during testing. What does this mean?
A. Very tight building
B. High air leakage rate
C. No ventilation needed
D. HVAC oversizing
Answer: B
Rationale: High ACH50 indicates significant air leakage.
6.
A furnace backdrafts combustion gases into the home. What is the primary safety concern?
A. Improved efficiency
B. Carbon monoxide exposure risk
C. Better air quality
D. Reduced humidity
Answer: B
Rationale: Backdrafting introduces harmful combustion gases indoors.
