Certified Energy Auditor Certification Certified Energy Auditor Building Envelope and Lighting Questions and Answers 3

Question 1

An energy auditor uses an infrared camera and detects cold spots on an interior wall during winter. What does this most likely indicate?

Accepted Answer

Missing or compressed insulation within the wall cavity

Answer

Excessive moisture in the drywall

Answer

A well-functioning vapor barrier

Answer

Normal thermal mass effects of the wall assembly

Question 2

What is the recommended maintained illuminance level for a typical US office workspace per IES standards?

Accepted Answer

30-50 foot-candles

Answer

10-20 foot-candles

Answer

100-150 foot-candles

Answer

200-300 foot-candles

Question 3

Which building envelope component typically contributes the most to air leakage in commercial buildings?

Accepted Answer

Roof-to-wall connections and penetrations

Answer

Exterior wall insulation joints

Answer

Window glazing surfaces

Answer

Foundation waterproofing membranes

Question 4

What is the primary advantage of LED lighting over fluorescent lighting in an energy audit recommendation?

Accepted Answer

LEDs have significantly longer rated life and higher efficacy

Answer

LEDs produce no heat whatsoever

Answer

LEDs require no electrical ballast or driver

Answer

LEDs emit light exclusively in the visible spectrum

Question 5

During an energy audit, an auditor measures a wall assembly with R-13 cavity insulation and R-5 continuous exterior insulation. What is the approximate total R-value of the insulation components?

Accepted Answer

R-18

Answer

R-8

Answer

R-13

Answer

R-65

Question 6

Which factor should an energy auditor prioritize when recommending a lighting retrofit for a warehouse with 24/7 operations?

Accepted Answer

Maximizing luminous efficacy and implementing high-bay occupancy sensors

Answer

Selecting fixtures with the highest Color Rendering Index

Answer

Choosing the lowest upfront cost fixtures available

Answer

Installing decorative pendant fixtures for aesthetic improvement