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Rationales 2025|2026 Q&A | Instant
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1. What is the primary purpose of an energy audit?
To identify opportunities to reduce energy consumption and improve
efficiency
Rationale: An energy audit evaluates a building’s energy use to
recommend measures that save energy and reduce costs.
2. Which of the following is considered a “baseline” in energy auditing?
The current energy consumption of a building
Rationale: A baseline provides a reference point to compare energy-
saving measures and determine improvements.
,3. What is the standard method for measuring building energy
performance?
Using utility bills and energy meters to analyze consumption
Rationale: Utility bills and meters provide actual consumption data,
essential for an accurate energy assessment.
4. What type of energy audit involves a detailed inspection of all systems
and equipment?
Level II or detailed energy audit
Rationale: Level II audits include a thorough analysis of systems and
equipment to recommend specific improvements.
5. Which tool is commonly used to detect air leaks in a building
envelope?
Blower door test
Rationale: Blower door tests pressurize the building to identify leaks,
allowing auditors to quantify air infiltration.
6. What is the purpose of an infrared (IR) camera in energy auditing?
To identify thermal anomalies and insulation deficiencies
Rationale: IR cameras detect temperature differences on surfaces,
revealing areas with poor insulation or air leaks.
7. Which lighting technology is most energy-efficient for commercial
spaces?
LED lighting
, Rationale: LEDs consume less energy, last longer, and produce less
heat compared to incandescent or fluorescent lights.
8. What does the term “energy intensity” refer to?
Energy use per unit of building area
Rationale: Energy intensity (kBtu/ft²) allows comparison of energy
performance across buildings of different sizes.
9. How can building automation systems reduce energy consumption?
By optimizing HVAC and lighting operations based on occupancy and
schedules
Rationale: Automation systems control energy use dynamically,
preventing waste when spaces are unoccupied.
10. What is the main function of insulation in a building?
To reduce heat transfer between indoor and outdoor environments
Rationale: Proper insulation maintains indoor comfort while
lowering heating and cooling energy needs.
11. Which HVAC component is responsible for removing heat from
indoor air?
Air conditioner or chiller
Rationale: HVAC cooling components extract heat to maintain
desired indoor temperatures.
12. What is the significance of the SEER rating?
It measures the efficiency of air conditioners and heat pumps
, Rationale: Higher SEER values indicate more efficient cooling
systems, reducing energy consumption and costs.
13. Which type of energy audit includes a simple walk-through
inspection and utility bill analysis?
Level I or preliminary audit
Rationale: Level I audits provide an overview of energy use with
minimal measurements and general recommendations.
14. What is the role of a programmable thermostat in energy
savings?
To automatically adjust temperatures based on schedules
Rationale: Programmable thermostats reduce energy use by
avoiding unnecessary heating or cooling during unoccupied periods.
15. Which renewable energy system can be integrated into a
building to reduce electricity demand from the grid?
Solar photovoltaic (PV) system
Rationale: PV systems generate electricity on-site, lowering
dependence on grid-supplied power.
16. What does the term “energy efficiency” mean?
Using less energy to perform the same task or provide the same
service
Rationale: Efficiency improvements reduce energy waste while
maintaining functionality or comfort.