Certified Energy Auditor Certification Certified Energy Auditor Certification 1

Question 1

Which ASHRAE standard defines the three levels of energy audits (Preliminary, General Survey, and Detailed Analysis)?

Accepted Answer

ASHRAE Standard 211

Answer

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).

Question 2

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:

Accepted Answer

Locations where insulation is missing or defective

Answer

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.

Question 3

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?

Accepted Answer

Total system airflow or conditioned floor area

Answer

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.

Question 4

A chiller's efficiency is rated at 0.55 kW/ton. What does this metric directly indicate?

Accepted Answer

The electricity consumed per ton of cooling capacity produced

Answer

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.

Question 5

During an energy audit, a thermal bridge in a building envelope is best described as:

Accepted Answer

A highly conductive pathway through the insulation layer that bypasses thermal resistance

Answer

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.

Certified Energy Auditor Certification Practice Test

Certified Energy Auditor Certification Practice Test

Certified Energy Auditor Certification Certified Energy Auditor Certification 1