Certified Energy Auditor Certification Certified Energy Auditor Certification-FREE Certified Energy Auditor Certification 1

Question 1

According to ASHRAE Standard 211, which level of energy audit involves detailed engineering analysis of capital-intensive modifications and computer energy modeling?

Accepted Answer

Level III – Detailed Analysis of Capital-Intensive Modifications

Answer

ASHRAE Standard 211 defines three audit levels. Level III is the most comprehensive, involving detailed engineering calculations, computer energy modeling, and investment-grade analysis specifically for capital-intensive measures.

Question 2

What does the Annual Fuel Utilization Efficiency (AFUE) rating measure in a heating system?

Accepted Answer

The percentage of fuel energy converted to usable heat over a typical heating season

Answer

AFUE expresses as a percentage how much of the fuel's energy content is converted into usable space heat over an entire heating season, accounting for startup, shutdown, and off-cycle losses. A 95% AFUE furnace wastes only 5% of its fuel.

Question 3

What is the primary purpose of a duct blaster (duct pressurization) test during an energy audit?

Accepted Answer

To quantify air leakage from the HVAC duct system to unconditioned spaces

Answer

A duct blaster pressurizes the duct system to a standard pressure (typically 25 Pa) and measures the airflow needed to maintain that pressure, revealing how much conditioned air leaks into unconditioned spaces like attics or crawlspaces — a major source of energy waste.

Question 4

Which metric is used to evaluate the seasonal cooling efficiency of a central air conditioning system?

Accepted Answer

SEER – Seasonal Energy Efficiency Ratio

Answer

SEER (Seasonal Energy Efficiency Ratio) measures total cooling output in BTUs over a typical cooling season divided by total electrical energy consumed in watt-hours. It accounts for varying load conditions, unlike the single-condition EER rating.

Question 5

In energy auditing, heating degree days (HDD) data is primarily used to:

Accepted Answer

Normalize and compare building energy consumption across different climate years

Answer

Heating degree days quantify how cold a location is over time. Auditors use HDD to normalize utility bills across years with different weather, enabling fair comparison of pre- and post-retrofit energy consumption independent of climate variation.

Certified Energy Auditor Certification Practice Test

Certified Energy Auditor Certification Practice Test

Certified Energy Auditor Certification Certified Energy Auditor Certification-FREE Certified Energy Auditor Certification 1