Certified Energy Auditor Certification Certified Energy Auditor Energy Audit Process 1

Question 1

What distinguishes an ASHRAE Level I energy audit (Walk-Through Analysis) from a Level II audit (Energy Survey and Analysis)?

Accepted Answer

Level I identifies low-cost and no-cost energy conservation measures, while Level II analyzes capital-intensive ECMs with supporting financial analysis

Answer

A Level I audit is a preliminary assessment focused on identifying operational and low-cost improvements, whereas a Level II audit goes deeper by quantifying energy savings and costs for capital improvements through engineering analysis and financial metrics.

Question 2

During an energy audit, infrared thermography is primarily used to:

Accepted Answer

Identify thermal anomalies such as insulation voids, air leaks, and thermal bridging in the building envelope

Answer

Infrared cameras detect surface temperature differences that reveal hidden deficiencies in insulation coverage, air sealing, and moisture intrusion — all critical building envelope findings in an energy audit.

Question 3

When reviewing 12 to 24 months of utility bills during the preliminary phase of an energy audit, an auditor should focus primarily on:

Accepted Answer

Consumption patterns, peak demand charges, applicable rate schedules, and any anomalous billing periods

Answer

Utility bill analysis establishes the energy baseline and reveals demand peaks, seasonal trends, rate structure impacts, and outlier months that signal operational issues — all foundational inputs to the audit.

Question 4

An ASHRAE Level III (Investment-Grade) energy audit differs from a Level II audit primarily because it:

Accepted Answer

Provides detailed engineering calculations and rigorous financial analysis sufficient to justify major capital investment decisions

Answer

A Level III audit produces the high-confidence energy savings projections and detailed financial models that lenders, ownership groups, and performance contracting firms require before committing significant capital.

Question 5

Which diagnostic instrument is most commonly used during an energy audit to quantify a building envelope's overall airtightness?

Accepted Answer

Blower door apparatus

Answer

A blower door depressurizes the building to a standard reference pressure (typically 50 Pa) and measures airflow, allowing the auditor to calculate air changes per hour and identify leakage areas with a smoke pencil or infrared camera.

Certified Energy Auditor Certification Practice Test

Certified Energy Auditor Certification Practice Test

Certified Energy Auditor Certification Certified Energy Auditor Energy Audit Process 1