Certified Energy Auditor Certification FREE Certified Energy Auditor Certification Trivia Questions and Answers 2 — Questions and Answers
Question 1: What is the primary purpose of a blower door test during an energy audit?
- To measure air infiltration rates in a building envelope (Correct answer)
- To test the efficiency of the HVAC blower motor
- To determine indoor air quality levels
- To measure duct leakage in the supply system
Correct answer: To measure air infiltration rates in a building envelope
A blower door test depressurizes a building to quantify the total air leakage through the building envelope.
Question 2: Which metric represents the total heat loss through a building component per unit area?
- U-value (Correct answer)
- R-value
- SHGC
- VLT
Correct answer: U-value
The U-value (thermal transmittance) measures the rate of heat transfer through a building element per unit area per degree of temperature difference.
Question 3: During an energy audit, what does a thermal imaging camera primarily detect?
- Temperature differences on building surfaces (Correct answer)
- Moisture content inside wall cavities
- Carbon dioxide concentration levels
- Electrical resistance in wiring
Correct answer: Temperature differences on building surfaces
Infrared thermography detects surface temperature variations that reveal insulation gaps, air leaks, and thermal bridging.
Question 4: What is the recommended minimum ventilation rate per person in commercial office spaces according to ASHRAE Standard 62.1?
- 5 CFM outdoor air per person plus area-based ventilation (Correct answer)
- 15 CFM outdoor air per person with no area component
- 25 CFM outdoor air per person at all times
- 3 CFM outdoor air per person during occupied hours
Correct answer: 5 CFM outdoor air per person plus area-based ventilation
ASHRAE 62.1 uses the Ventilation Rate Procedure which combines a per-person outdoor air rate (typically 5 CFM) with a per-area rate for office spaces.
Question 5: Which of the following is the most significant source of energy loss in a typical commercial building?
- HVAC systems (Correct answer)
- Lighting
- Plug loads
- Domestic hot water
Correct answer: HVAC systems
HVAC systems typically account for 40-60% of total energy consumption in commercial buildings, making them the largest single energy end use.
Question 6: What does an Energy Use Intensity (EUI) value represent?
- Annual energy consumption per unit of floor area (Correct answer)
- Peak electrical demand per occupant
- Monthly utility cost per square foot
- Seasonal efficiency ratio of cooling equipment
Correct answer: Annual energy consumption per unit of floor area
EUI is calculated by dividing total annual energy consumed by the gross floor area, typically expressed in kBtu per square foot per year.
Certified Energy Auditor Certification FREE Certified Energy Auditor Certification Trivia Questions and Answers 2
What is the primary purpose of a blower door test during an energy audit?