According to ASHRAE Standard 211, what are the three levels of commercial building energy audits?
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Question · Easy
Lockout/tagout, called like a cup final
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Prepare for the AEE Certified Energy Auditor exam with the current 12-domain Body of Knowledge, calculation strategy, open-book setup, and a focused study plan.
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Which audit level is most appropriate for identifying low-cost and no-cost operational improvements and establishing an energy baseline?
What is the primary purpose of an Investment Grade Audit (IGA)?
Question · Medium
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Which international standard provides the framework for energy auditing of organizations?
During the pre-site phase, which document is most critical for understanding historical energy consumption patterns?
For a Level 2 audit, how should the energy baseline be established for a manufacturing facility?
What is Energy Use Intensity (EUI)?
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A building consumed 2,400,000 kWh in a year with 200,000 sf area. What is the EUI in kBtu/sf/yr?
What does Load Factor indicate?
What is the conversion from kWh to kBtu?
A facility has monthly peak demand of 500 kW and average demand of 300 kW. What is the load factor?
How is Simple Payback Period (SPP) calculated?
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A project costs $50,000 with expected annual savings of $12,500. What is the simple payback?
What is the primary advantage of Life Cycle Cost Analysis (LCCA) over Simple Payback?
What does Net Present Value (NPV) represent?
What is Internal Rate of Return (IRR)?
A project has NPV of $25,000 at 6% discount rate. What does this indicate?
What accuracy class is typical for a true RMS multimeter in energy auditing?
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What factor most affects infrared thermometer accuracy?
What is the recommended minimum duration for short-term energy monitoring?
Which measurement indicates power factor correction opportunities in a three-phase motor?
Question · Hard
What is the most critical safety precaution when measuring refrigerant pressures?
What is the efficacy unit for light sources?
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Which lighting technology typically has the highest efficacy?
What does the Color Rendering Index (CRI) measure?
A 400W metal halide fixture is replaced with a 150W LED. If operating 4,000 hours/year at $0.10/kWh, what are annual savings?
What is the approximate cooling capacity of a 3-ton air conditioning unit?
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What does the Coefficient of Performance (COP) represent for a chiller?
What is the relationship between EER and COP?
In an air handling unit, what is the purpose of the economizer?
What is the typical chilled water supply temperature in commercial buildings?
What is the main advantage of variable air volume (VAV) systems over constant volume systems?
What does a high superheat reading on an HVAC refrigerant system indicate?
According to ASHRAE Standard 62.1, what is the primary purpose of ventilation air?
What is the typical efficiency range for a standard gas-fired tank water heater?
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What is the primary energy savings mechanism of a heat pump water heater?
What is the typical recommended storage temperature for commercial hot water systems?
Which DHW system component prevents thermosiphoning (gravity circulation) when the pump is off?
What is the typical full-load efficiency of a NEMA Premium efficiency 10 HP motor?
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How does a Variable Frequency Drive (VFD) save energy in fan and pump applications?
What motor loading condition typically provides maximum efficiency?
A 50 HP motor operates at 75% load for 4,000 hours/year. With electricity at $0.10/kWh, what are approximate annual energy costs?
What power factor correction method is most commonly used for individual motor loads?
What does the R-value of insulation represent?
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What is the relationship between R-value and U-factor?
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