Certified Energy Auditor Certification Data Collection and Analysis 5

Question 1

What is the purpose of a 'baseline period' in measurement and verification (M&V) under IPMVP Option B?

Accepted Answer

Establish pre-retrofit energy use for comparison against post-retrofit measured savings

Answer

The baseline period captures pre-retrofit energy performance so that actual post-retrofit savings can be calculated by comparison.

Question 2

When reviewing compressed air system data, an auditor finds the compressor runs at 100% load continuously even during low-demand periods. What does this most likely indicate?

Accepted Answer

Significant air leaks in the distribution system consuming excess compressed air

Answer

A compressor running fully loaded even during low-demand periods typically indicates leakage is consuming capacity that should be unloaded.

Question 3

An auditor uses a data logger to capture chiller runtime over 30 days. The logger records 720 hours of operation in a month with 720 total hours. What does this reveal?

Accepted Answer

The chiller ran continuously with no off-cycles, suggesting oversizing or controls issues

Answer

Continuous runtime with no cycling suggests the chiller cannot satisfy load demand, or controls are preventing it from shutting down during low-load periods.

Question 4

Which ASHRAE standard defines the procedures and minimum requirements for commercial building energy audits at Levels 1, 2, and 3?

Accepted Answer

ASHRAE Standard 211

Answer

ASHRAE Standard 211 establishes the scope, deliverables, and data collection requirements for each level of commercial energy audit.

Question 5

A natural gas utility bill shows consumption in therms. If an auditor needs to convert therms to MMBtu for an energy analysis, what conversion factor applies?

Accepted Answer

1 therm = 0.1 MMBtu

Answer

One therm equals 100,000 Btu, which is 0.1 MMBtu, so dividing therm values by 10 yields MMBtu.

Certified Energy Auditor Certification Practice Test

Certified Energy Auditor Certification Practice Test

Certified Energy Auditor Certification Data Collection and Analysis 5