Certified Energy Auditor Certification Building Envelope and Lighting 3

Question 1

According to ASHRAE 90.1, which lighting control is required in all enclosed spaces of 10,000 sq ft or less?

Accepted Answer

Occupancy sensors or vacancy sensors

Answer

ASHRAE 90.1 requires occupancy sensors or vacancy sensors in enclosed spaces of 10,000 sq ft or less to automatically reduce lighting when spaces are unoccupied.

Question 2

A wall assembly has components with R-values of 1.0, 13.0, 0.5, and 0.7. What is the total assembly R-value?

Accepted Answer

15.2

Answer

Total R-value for series assemblies is the sum of all component R-values: 1.0 + 13.0 + 0.5 + 0.7 = 15.2.

Question 3

Which type of window frame material has the highest thermal conductivity, representing the worst thermal performance?

Accepted Answer

Aluminum without thermal break

Answer

Aluminum without a thermal break has very high thermal conductivity, making it the poorest performing frame material for thermal resistance.

Question 4

When auditing exterior wall insulation, a thermal bridge most commonly occurs at:

Accepted Answer

Structural framing members (studs, plates, headers)

Answer

Thermal bridges in wall assemblies most commonly occur at structural framing members like studs, plates, and headers, which conduct heat more readily than cavity insulation.

Question 5

Color Rendering Index (CRI) measures:

Accepted Answer

How accurately a light source renders object colors compared to natural light

Answer

CRI measures how accurately a light source renders the colors of objects compared to a reference light source, on a scale of 0 to 100.

Certified Energy Auditor Certification Practice Test

Certified Energy Auditor Certification Practice Test

Certified Energy Auditor Certification Building Envelope and Lighting 3