FREE Certified Energy Auditor Certification Questions and Answers
Which terminal unit is unable to supply ventilation at minimum fresh air flow rates?
Explanation:
A terminal box with a heating and/or cooling coil, a fan, and a filter is known as a fan coil unit. To condition a space, 100% return air is used. A separate system supplies the area with fresh air.
Which of the following techniques for economic analysis ignores the time value of money?
Explanation:
The simple Payback Period is calculated by dividing the upfront costs by the yearly savings and does not take inflation into account.
A utility's electricity rate structure that differs according to the time of day is known as:
Explanation:
An electrical rate structure known as a time of use rate has at least two different rates throughout the course of a day, such as an on-peak rate from 7 pm to 12 am and an off-peak rate from 12 am to 7 pm.
What would an anemometer be used for during an energy audit?
Explanation:
Air velocity is measured by an anemometer. A rotating vane, deflecting vane, hot wires, ultrasonic sound waves, a plate, or a pitot tube may be used to power them.
Which of the following could involve using an infrared camera?
Explanation:
Electrical systems, mechanical components, and the structure of buildings can all have excessively hot or cold areas that can be located using infrared thermography.
A lighting system's lumen depreciation factor is 0.85, and its dirt depreciation factor is 0.8. What is the total light loss percentage?
Explanation:
The sum of the individual light loss factors creates the overall light loss factor for a lighting system. The light loss factor in this instance is 0.68 (0.8 x 0.85).
Which of the following best describes an ideal start HVAC control strategy?
Explanation:
A good beginning by minimizing system runtime, the HVAC control strategy saves energy. When the outside air temperature is close to the desired indoor air temperature, the start of HVAC equipment can be delayed rather than starting at the scheduled time because conditioning the indoor air will take less time.