Certified Energy Auditor Certification FREE Certified Energy Auditor Certification MCQ Questions and Answers 3

Question 1

What is the payback period formula used by energy auditors to evaluate retrofit recommendations?

Accepted Answer

Initial investment cost divided by annual energy savings

Answer

Simple payback period equals the upfront cost of the measure divided by the yearly dollar savings it produces, giving the number of years to recoup the investment.

Question 2

Which combustion analysis measurement indicates incomplete burning of fuel in a furnace or boiler?

Accepted Answer

Elevated carbon monoxide (CO) levels in flue gas

Answer

Elevated carbon monoxide in flue gases is a direct indicator of incomplete combustion, signaling that fuel is not being fully oxidized.

Question 3

In a Level II ASHRAE energy audit, what distinguishes it from a Level I audit?

Accepted Answer

It includes detailed energy calculations and financial analysis of proposed measures

Answer

A Level II ASHRAE audit builds on the Level I walkthrough by adding detailed energy calculations, equipment inventories, and cost-benefit analysis for recommended conservation measures.

Question 4

What is the function of an economizer on a commercial HVAC system?

Accepted Answer

To use outdoor air for free cooling when conditions permit

Answer

An economizer introduces cool outdoor air to reduce or eliminate the need for mechanical cooling when the outside temperature and humidity are favorable.

Question 5

Which factor has the greatest impact on a window's overall thermal performance?

Accepted Answer

The U-factor of the entire window assembly

Answer

The U-factor measures the rate of heat transfer through the complete window assembly, making it the most comprehensive indicator of thermal performance.

Certified Energy Auditor Certification Practice Test

Certified Energy Auditor Certification Practice Test

Certified Energy Auditor Certification FREE Certified Energy Auditor Certification MCQ Questions and Answers 3