Certified Energy Auditor Certification Data Collection and Analysis 2

Question 1

Which instrument is used to measure the airtightness of a building envelope?

Accepted Answer

Blower door

Answer

A blower door depressurizes the building to measure air leakage through the envelope.

Question 2

What does a lighting power density (LPD) calculation require?

Accepted Answer

Total wattage of fixtures divided by floor area

Answer

LPD is expressed in watts per square foot and equals total connected wattage divided by the conditioned floor area served.

Question 3

When benchmarking a facility's energy use, which metric normalizes consumption across buildings of different sizes?

Accepted Answer

Energy Use Intensity (EUI)

Answer

EUI divides annual energy consumption by gross floor area, enabling fair cross-building comparisons.

Question 4

A chiller log shows entering condenser water temperature consistently 5°F above design. What analytical step should an auditor take first?

Accepted Answer

Compare actual vs. design cooling tower performance curves

Answer

Elevated condenser water temperature usually indicates cooling tower degradation, so comparing actual vs. design tower performance is the correct diagnostic step.

Question 5

Which data source provides historical utility billing intervals that help identify demand spikes?

Accepted Answer

Interval data from the utility meter

Answer

Utility interval (15-minute or hourly) meter data captures the demand profile needed to identify peak demand events.

Certified Energy Auditor Certification Practice Test

Certified Energy Auditor Certification Practice Test

Certified Energy Auditor Certification Data Collection and Analysis 2