Certified Energy Auditor Certification 1 Flashcards
6 cards from real Certified Energy Auditor Certification practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
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Which ASHRAE standard defines the three levels of energy audits (Preliminary, General Survey, and Detailed Analysis)?
Answer: ASHRAE Standard 211
ASHRAE Standard 211 (Standard for Commercial Building Energy Audits) establishes the scope, methodology, and reporting requirements for the three audit levels: Level 1 (Walk-Through), Level 2 (Energy Survey and Analysis), and Level 3 (Detailed Analysis).
An energy auditor uses an infrared camera to scan a building's exterior walls on a cold winter night. Bright (warm) spots on the thermal image most likely indicate:
Answer: Locations where insulation is missing or defective
In heating season thermography of exterior surfaces, warm areas indicate heat escaping through the building envelope, which is characteristic of missing, compressed, or wet insulation that fails to resist heat flow.
A duct leakage test (duct blaster) measures CFM25 at 25 Pascals of pressure. This value is typically expressed as a percentage of what reference quantity to assess duct system performance?
Answer: Total system airflow or conditioned floor area
CFM25 leakage is normalized to total system airflow (CFM_total) or conditioned floor area to yield a leakage percentage or CFM25 per 100 sq ft, allowing comparison across systems of different sizes.
A chiller's efficiency is rated at 0.55 kW/ton. What does this metric directly indicate?
Answer: The electricity consumed per ton of cooling capacity produced
kW/ton is an efficiency metric for chillers expressing the electrical power input (kilowatts) required to produce one ton (12,000 BTU/hr) of cooling. Lower values indicate higher efficiency.
During an energy audit, a thermal bridge in a building envelope is best described as:
Answer: A highly conductive pathway through the insulation layer that bypasses thermal resistance
A thermal bridge is a material or assembly (such as a steel stud, concrete column, or window frame) with significantly higher conductivity than surrounding insulation, creating a low-resistance path for heat flow and reducing effective wall R-value.
An energy auditor calculates a simple payback period of 4.2 years for a lighting retrofit. Which formula was most likely used?
Answer: Installed cost ($) ÷ Annual cost savings ($/yr)
Simple payback period equals the total installed (capital) cost divided by the annual cost savings. It expresses how many years it takes for the savings to recover the initial investment, without accounting for the time value of money.