CEA Energy Auditing & Assessment Techniques 2

Question 1

Which instrument is used to measure the airtightness of a building envelope during an energy audit?

Accepted Answer

Blower door test apparatus

Answer

A blower door test depressurizes the building to measure air leakage rate, quantified as ACH50 or CFM50.

Question 2

In a Level II energy audit (ASHRAE standard), what is the primary deliverable beyond a Level I audit?

Accepted Answer

Detailed energy savings calculations with capital cost estimates

Answer

A Level II audit expands on Level I by providing engineering analysis with quantified savings and capital cost estimates for each ECM.

Question 3

What does a 'utility bill analysis' in an energy audit primarily help determine?

Accepted Answer

Baseline energy consumption and demand patterns

Answer

Utility bill analysis establishes baseline energy use intensity (EUI), identifies seasonal demand peaks, and flags anomalies indicating waste.

Question 4

A walk-through energy audit reveals single-pane windows in a commercial building in a cold climate. The BEST immediate recommendation is to:

Accepted Answer

Conduct a detailed window U-factor and SHGC assessment before specifying replacements

Answer

A proper audit requires measuring existing conditions and calculating savings before specifying costly replacements to ensure cost-effectiveness.

Question 5

When performing a lighting audit, which metric directly determines the quantity of light delivered to a work surface?

Accepted Answer

Footcandles (lux)

Answer

Footcandles measure illuminance—the amount of light actually reaching the work plane—which auditors compare against IES recommended levels.

(CEA) Certified Energy Analyst Practice Test