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100+ Free AEE Certified Energy Auditor Practice Questions

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An auditor finds that packaged rooftop units start three hours before occupancy every day, even in mild weather. Which EEM is most directly indicated?

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2026 Statistics

Key Facts: AEE Certified Energy Auditor Exam

120

Exam Questions

CEA Body of Knowledge & Study Guide - Imperial Units

100

Scored Questions

CEA Body of Knowledge & Study Guide - Imperial Units

20

Unscored Trial Questions

CEA Body of Knowledge & Study Guide - Imperial Units

4 hours

Exam Duration

CEA Body of Knowledge & Study Guide - Imperial Units

700

Minimum Passing Score

CEA Candidate Handbook

$500

Application Fee

CEA Candidate Handbook

Use this bank for the current AEE CEA Body of Knowledge and Study Guide - Imperial Units. The official BoK states that the CEA exam is a four-hour open-book exam with 120 multiple-choice questions, of which 100 are scored and 20 are unscored trial questions, spread across 12 mandatory subject sections.

Sample AEE Certified Energy Auditor Practice Questions

Try these sample questions to test your AEE Certified Energy Auditor exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1At the start of a commercial building energy audit, which action best establishes the audit strategy?
A.Begin replacing equipment that appears old before reviewing utility records
B.Define scope, objectives, audit level, available data, site access, and decision criteria with the client
C.Limit the audit to lighting because lighting measures usually have short paybacks
D.Prepare a final list of EEMs before interviewing facility staff
Explanation: A sound audit strategy starts by aligning scope, audit level, objectives, constraints, available data, access, and client decision rules before field work or measure selection.
2Which pre-audit request is most useful for understanding seasonal energy patterns before arriving on site?
A.A single photograph of the main electrical room
B.At least 12 months of electric, fuel, and water bills with rate schedules
C.A list of preferred vendors only
D.A copy of the company's marketing brochure
Explanation: Utility bills and rate schedules allow the auditor to see seasonal use, demand patterns, costs, billing units, and anomalies that should be investigated during the site visit.
3Why should an auditor interview operations and maintenance personnel during an energy audit?
A.Operators can identify schedules, complaints, overrides, maintenance issues, and undocumented changes
B.Interviews replace the need to review utility bills
C.Operators are responsible for approving all capital budgets
D.Interviews are only needed when the building has no controls
Explanation: O&M staff often know how systems actually run, including manual overrides, comfort issues, broken controls, changed schedules, and maintenance practices that drawings and bills do not reveal.
4Which statement best describes the official AEE CEA exam format from the Body of Knowledge?
A.Closed book, 80 essay questions, 3 hours
B.Open book, 120 multiple-choice questions, 4 hours
C.Closed book, 150 multiple-choice questions, 6 hours
D.Open book, oral interview only, no time limit
Explanation: The CEA Body of Knowledge states that the exam is open book, contains 120 multiple-choice questions, and has a four-hour time limit.
5An owner asks for a quick audit to identify obvious low-cost savings opportunities, not investment-grade design. Which response is most appropriate?
A.Refuse the assignment because all audits must be investment grade
B.Match the audit level, scope, and deliverables to the owner's decision need and document limitations
C.Perform only a utility tariff review because site observations are unnecessary
D.Commit to guaranteed savings before collecting operating data
Explanation: Audit depth should match the client's intended use, budget, and risk tolerance, with clear documentation of scope, assumptions, accuracy limits, and next steps.
6Which item should be included in a well-planned site visit for an energy audit?
A.Only a list of final recommendations
B.A measurement plan identifying instruments, points, duration, safety needs, and responsible personnel
C.A statement that all data will be estimated from nameplates
D.A request to shut down all equipment regardless of production impact
Explanation: A measurement plan helps collect useful, safe, and defensible data by defining what will be measured, with which instruments, for how long, and under whose supervision.
7How does ASHRAE Standard 211 generally help an energy auditor?
A.It provides a framework for commercial building energy audit procedures and reporting
B.It sets mandatory electric utility rates for all customers
C.It replaces all local building codes for new construction
D.It gives a single fixed payback requirement for every EEM
Explanation: ASHRAE 211 is used as a framework for energy audit levels, procedures, and report content, helping align expectations and audit deliverables.
8In an ISO 50001 energy management system, how does an energy audit most directly support the organization?
A.By replacing the need for an energy policy
B.By identifying significant energy uses, opportunities, and data needed for energy performance improvement
C.By certifying that all equipment is code compliant
D.By eliminating the need for measurement and verification
Explanation: Energy audits support ISO 50001 by finding significant energy uses, improvement opportunities, relevant data, and operating issues that feed energy planning and performance improvement.
9Which report practice best supports a client's later implementation of EEMs?
A.List only annual savings and omit assumptions
B.Document baseline conditions, assumptions, calculations, costs, non-energy impacts, and implementation considerations
C.Avoid discussing operations because only capital projects matter
D.Hide uncertainty so the report appears more precise
Explanation: Actionable audit reports include the evidence, assumptions, economics, operational impacts, and implementation requirements needed for the owner to evaluate and execute measures.
10An auditor discovers that a proposed economizer repair may change chiller runtime and boiler reheat energy. What should the audit plan do?
A.Ignore the interaction because each EEM is always independent
B.Evaluate interactive effects so combined savings are not double counted or overstated
C.Assign all savings to lighting because lighting is easier to meter
D.Remove all HVAC measures from the report
Explanation: Measures that affect loads, controls, or operating hours can interact; the audit should estimate combined impacts and avoid simply adding independent savings values.

About the AEE Certified Energy Auditor Exam

The AEE Certified Energy Auditor (CEA) credential recognizes professionals who evaluate facility energy use, identify energy conservation opportunities, and recommend ways to reduce or optimize energy consumption. The current Body of Knowledge covers audit strategy, energy-use analysis, data collection, economics, lighting, HVAC, domestic hot water, motors and drives, compressed air, building envelope, BAS/PAS/EMCS, alternative generation and storage, and transport.

Assessment

120 open-book multiple-choice questions: 100 scored questions and 20 randomly located unscored trial questions. This practice set contains 100 scored-style questions mapped to the 12 official subject sections.

Time Limit

4 hours

Passing Score

Minimum score of 700 points

Exam Fee

$500 application fee; $250 retesting fee (Association of Energy Engineers (AEE))

AEE Certified Energy Auditor Exam Content Outline

9%-13%

Developing an Energy Audit Strategy & Plan

Plan the audit, define procedures, project team, audit level, pre-audit tasks, instrumentation, O&M interviews, report requirements, follow-up, ISO 50001 support, ASHRAE 211, ISO 50002, and applicable codes or industry requirements.

7%-11%

Energy Use Analysis

Define required usage information, review rates, establish utility cost and energy baselines, apply relevant variables and regression, analyze graphs, benchmark, calculate EUI and ECI, estimate load factor, break down end uses, use balance-point temperature, and analyze fleet information.

8%-12%

Data Collection & Analysis

Define and collect pre-site and on-site data, select instrumentation, determine EEMs for evaluation, account for interactive effects, and understand ordinary least squares regression modeling.

7%-11%

Economic Analysis

Review decision criteria, cost O&M and capital measures, calculate payback, NPV, IRR, LCC, FCF, SIR, BCR, annual value, replacement chain and equivalent annual annuity, analyze transport options, run sensitivity and scenario analysis, and present financial results.

6%-8%

Lighting Systems

Evaluate efficacy, lumen depreciation, fixture and lamp types, replacement options, lighting controls, lighting power density, illumination levels, daylight harvesting, lighting EEMs, O&M, and savings.

12%-18%

Heating, Ventilation & Air Conditioning Systems

Audit HVAC, heating, and ventilation systems, including equipment types, controls, efficiencies, filters, chillers, boilers, furnaces, distribution, steam traps, ventilation requirements, EEMs, O&M, and savings.

5%-7%

Domestic Hot Water Systems

Audit DHW system type, efficiency, temperature set points, circulation, EEMs, O&M, energy savings, water use, irrigation, water efficiency measures, and water savings.

8%-12%

Motors & Drives & Compressed Air Systems

Understand electrical fundamentals, motor sizing, motor and drive characteristics, efficiencies, VFD savings, compressed-air supply, controls, treatment, distribution, storage, demand, leaks, inappropriate uses, artificial demand, EEMs, O&M, and savings.

6%-8%

Building Envelope

Determine R-values and U-values, evaluate walls, roofs, windows, glass alternatives, infiltration, thermal mass, envelope EEMs, O&M, energy modeling methods, and savings.

6%-8%

BAS, PAS and EMCS

Understand energy-saving controls, identify EMS issues, determine needed points, evaluate operator use, read trends, handle sensor accuracy problems, identify EEMs, evaluate O&M, and calculate savings.

4%-6%

Alternative Generation & Storage

Screen alternative generation, renewables, cogeneration, thermal storage, electrical storage, demand response, integration impacts, costs, sites, and incentives.

3%-5%

Transport

Evaluate transport modes, vehicles, fuel costs, driver operation, maintenance, logistics, routes, fleets, transport energy performance indicators, benchmarking, modeling, vehicle improvements, monitoring, and driver performance.

How to Pass the AEE Certified Energy Auditor Exam

What You Need to Know

  • Passing score: Minimum score of 700 points
  • Assessment: 120 open-book multiple-choice questions: 100 scored questions and 20 randomly located unscored trial questions. This practice set contains 100 scored-style questions mapped to the 12 official subject sections.
  • Time limit: 4 hours
  • Exam fee: $500 application fee; $250 retesting fee

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

AEE Certified Energy Auditor Study Tips from Top Performers

1Build a reference binder or tabbed electronic-free paper references around the 12 BoK sections so open-book time is spent solving, not searching.
2Practice establishing baselines from at least 12 months of utility data and explicitly identify relevant variables before trusting savings estimates.
3For regression questions, focus on whether the model is physically meaningful, whether variables are independent, and whether the period represents normal operation.
4For EEM questions, identify interactive effects before adding savings from lighting, HVAC, controls, and envelope measures.
5Treat field data as evidence: nameplate data, spot readings, trends, interviews, schedules, and utility bills should agree or trigger follow-up.
6For economics, know when simple payback is insufficient and when life-cycle methods such as NPV, SIR, or annual value better match the client's decision rule.
7Study HVAC at a systems level. Controls, ventilation, distribution, and O&M issues often matter as much as equipment nameplate efficiency.
8Finish preparation with timed mixed sets using only open-book materials and a hand calculator.

Frequently Asked Questions

How many questions are on the AEE CEA exam?

The CEA Body of Knowledge and Study Guide states that the exam has 120 multiple-choice questions. Of those, 100 are scored and 20 are randomly located trial questions that do not count toward the score.

Is the CEA exam open book?

Yes. AEE states that the CEA examination is open book, lasts four hours, and requires candidates to bring a hand-held calculator because computers, tablets, and cell phones are not allowed during the test.

What score is needed to pass the CEA exam?

The U.S. CEA Candidate Handbook states that candidates must obtain a minimum score of 700 points on the CEA examination.

What topics are most heavily weighted?

HVAC is the largest single listed section at 12%-18%. Audit strategy and planning, data collection and analysis, and motors, drives, and compressed air also carry substantial weights.

Can the CEA exam be taken remotely?

The CEA Candidate Handbook states that the exam is available online by remote proctor, with live proctoring via webcam and computer sharing technology. Candidates should confirm current scheduling details with AEE.

Who is the CEA for?

The credential is for professionals who evaluate and analyze how energy is used in facilities, identify energy conservation opportunities, and recommend improvements that reduce or optimize energy consumption.