Free LEED AP Operations Maintenance (LEED AP O M) Exam Questions and Answers
LEED AP Operations Maintenance (LEED AP O M) is one of the USGBC tests covered here. Three organisations are involved and it is worth knowing which does what: USGBC develops the LEED rating system, IWBI develops the WELL Building Standard, and GBCI — a separate body from both — administers the exams. LEED Green Associate is the foundation credential and the only one with no prerequisite: 100 multiple-choice questions in two hours, needing 170 points out of 200, sat at a Prometric centre or online-proctored, and renewed with 15 continuing-education hours every two years. The specialty AP credentials sit above it and carry heavier continuing-education requirements.
Looking for LEED AP Operations Maintenance (LEED AP O M) exam dumps or ExamTopics questions? These practice questions cover the same ground with verified answers and explanations, a downloadable PDF and a full practice test, kept current as USGBC updates the exam.
Last updated: October 29, 2026
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Question #1
A naturally ventilated office zone has 1,800 square feet of net occupiable floor area. Using the ASHRAE Standard 62.1 natural ventilation procedure, what is the minimum total openable area required?
Correct answer: C
Explanation
The natural ventilation procedure requires openable area of at least 4% of the net occupiable floor area. 1,800 x 0.04 = 72 square feet.
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Question #2
A project team is preparing an O+M submission for a 120,000-square-foot office building. The municipal utility supplies the building and its landscaped grounds through one service connection with a utility-read meter. The facility manager has fixture flow rates and occupancy counts on file but no other water records. Which approach BEST addresses the Water Metering and Reporting requirement?
Correct answer: C
Explanation
Water Metering and Reporting is built on measured, whole-building water data for the reporting period, and a utility meter that serves the building and grounds can supply it. Fixture-based calculations are estimates, not metered data. Submetering one system or borrowing another building's bills does not capture the project's own total use.
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Question #3
A project team in a jurisdiction with an adopted Building Performance Standard (BPS) is preparing a carbon projection from energy use. What should the projected emissions be compared against?
Correct answer: A
Explanation
A carbon projection estimates future greenhouse gas emissions from energy use, broken down by end use, so the team can see whether the building will meet the emissions limits set by the applicable BPS. Peer medians and baseline buildings are used for energy performance comparisons, and grid averages are only an input to the emissions calculation.
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Question #4
An office building's whole-building electricity use rose 12% in one month, although occupancy and weather were similar to the prior month. Interval data from installed submeters are available. What should the facility team do FIRST?
Correct answer: D
Explanation
Energy monitoring is meant to detect and diagnose changes in performance as they happen. Submeter data let the team locate the cause, such as a schedule or equipment fault, and correct it. Adjusting the baseline or buying offsets hides the problem rather than investigating it.
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Question #5
A facility manager is resurfacing a 40,000-square-foot dark asphalt parking lot and wants the work to support heat island reduction. Which approach meets this goal?
Correct answer: D
Explanation
Non-roof heat island strategies cut the solar heat that hardscape absorbs. They do this either with reflective surfaces that meet a solar reflectance threshold or with shade over the paving itself. Porous asphalt helps with stormwater, but its dark surface still absorbs heat. Trees that do not shade the paving do not lower its surface temperature.
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Question #6
A facility manager is benchmarking a laboratory building whose space type cannot receive an ENERGY STAR score in Portfolio Manager. The building has 36 months of utility data, and the original design-phase energy model is on file. How can the team show energy performance?
Correct answer: B
Explanation
If a building cannot get an ENERGY STAR score, it can show performance by comparing its measured energy use intensity with a historical baseline built from its own utility data. A design-phase model is a prediction, not measured performance. Cost per square foot depends on utility rates rather than energy use, and borrowing a score from another building type is not valid.
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Question #7
While collecting data for an O+M submission, a project team finds that the wording of a credit requirement can be read two ways. Where should the team look FIRST for an official clarification?
Correct answer: B
Explanation
USGBC publishes official corrections and clarifications for each rating system version as addenda and LEED interpretations in the Addenda Database, so the team should check there first. A reviewer is assigned only once the project is under review, so contacting one is not the first step. Older reference guides and other projects' documentation are not official rulings for the current version.
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Question #8
A facility manager is preparing an occupant transportation survey to calculate the building's sustainable transportation rate for the reporting period. Which information must the survey collect?
Correct answer: B
Explanation
The sustainable transportation rate is the share of occupant trips made by low-carbon modes, so the survey has to record how occupants actually travel to the building. Satisfaction with transit and permit counts may affect travel choices, but they do not show which modes occupants used. Fuel economy describes vehicles, not trips.
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Question #9
A facility manager is compiling a year of waste data for Waste Reduction Performance. The hauler's reports list four streams. Which stream can the team count as diverted?
Correct answer: A
Explanation
Donated furniture goes back into use and leaves the waste stream, so it counts as diverted. Alternative daily cover is still placed in the landfill, even though it serves a purpose there. Capturing landfill methane doesn't change the fact that the trash was landfilled. Recyclables that the hauler tipped with trash were never recovered, even though occupants separated them at the building.
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Question #10
A facility manager is selecting sensors for a continuous indoor air quality monitoring system that will report real-time readings from each occupied office floor. Which parameter is suited to this monitoring approach?
Correct answer: C
Explanation
Continuous monitoring uses sensors that report readings in real time, and carbon dioxide is a standard real-time parameter used as an indicator of ventilation. Mold spores, asbestos fibers and lead in dust are all found through collected samples and laboratory analysis. That fits targeted one-time testing, not a sensor system giving real-time data.
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Discussion
Explain your reasoning, not just the letterOther USGBC certifications
- LEED Green Associate (opens in a new tab)
- LEED Green Rater (opens in a new tab)
- LEED AP Homes (LEED AP Homes) (opens in a new tab)
- LEED AP Neighborhood Development (LEED AP ND) (opens in a new tab)
- LEED Fellow (opens in a new tab)
- LEED AP Interior Design Construction (LEED AP ID C) (opens in a new tab)
- LEED AP Building Design Construction (LEED AP BD C) (opens in a new tab)
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FAQ
Learn More: https://www.usgbc.org/articles/becoming-leed-professional-how-register-leed-green-associate-exam
- Q1: What is the LEED AP Operations Maintenance (LEED AP O M) exam?
- A: LEED AP Operations Maintenance (LEED AP O M) is a USGBC certification exam. Judging by the questions in our bank, it concentrates on leed, indoor, building, credit and energy.
- Q2: What topics does the LEED AP Operations Maintenance (LEED AP O M) exam cover?
- A: Questions in our LEED AP Operations Maintenance (LEED AP O M) bank cluster around leed, indoor, building, credit, energy, certified, leed-certified and certification. Working through the full set is the quickest way to find which of these you are weakest on.
- Q3: How should I prepare for LEED AP Operations Maintenance (LEED AP O M)?
- A: Work through the LEED AP Operations Maintenance (LEED AP O M) practice questions here, checking your answer on each one, then sit the practice test to rehearse the exam under timed conditions before the real thing.
- Q4: Are these real LEED AP Operations Maintenance (LEED AP O M) exam questions?
- A: They are drawn from officially released past questions and from community members who have sat LEED AP Operations Maintenance (LEED AP O M). Answers are verified and updated weekly.
- Q5: Where do I register for the LEED AP Operations Maintenance (LEED AP O M) exam?
- A: Register through USGBC directly at https://www.usgbc.org/articles/becoming-leed-professional-how-register-leed-green-associate-exam. Exampractice is not affiliated with USGBC and does not administer the exam.
- Q6: Is there a free LEED AP Operations Maintenance (LEED AP O M) sample?
- A: Yes. Every LEED AP Operations Maintenance (LEED AP O M) page shows a free sample of real questions. Upgrading opens the full bank and the practice test.
- Q7: What are USGBC Certification Exams?
- A: USGBC (U.S. Green Building Council) Certification Exams validate your expertise in green building practices and LEED (Leadership in Energy and Environmental Design) standards. These certifications demonstrate your proficiency in designing, constructing, and operating buildings that meet high environmental performance standards.
- Q8: Why should I pursue USGBC Certification?
- A: USGBC Certification enhances your professional credibility, showcasing your skills and knowledge in sustainable building practices. This can lead to better job opportunities, higher salaries, and career advancement in architecture, construction, environmental design, and facilities management roles.
- Q9: What are the benefits of USGBC Certification?
- A: Benefits include recognition as a certified green building professional, improved job performance, access to exclusive resources, continuing education opportunities, and staying current with the latest LEED standards and best practices.
- Q10: Who should take USGBC Certification Exams?
- A: Architects, engineers, construction managers, sustainability consultants, urban planners, and anyone involved in the design, construction, and operation of sustainable buildings should consider these certifications to validate their expertise and advance their careers.
- Q11: What types of USGBC Certification Exams are available?
- A: USGBC offers various LEED certification paths, including:
- Q12: How do I prepare for USGBC Certification Exams?
- A: Preparation can include official USGBC training courses, study guides, practice exams, online tutorials, and hands-on experience with green building projects and LEED documentation.
- Q13: Where can I take USGBC Certification Exams?
- A: USGBC Certification Exams can be taken at authorized Prometric testing centers worldwide, providing flexibility to fit your schedule and location.
- Q14: How do USGBC Certifications impact my career?
- A: USGBC Certifications significantly boost your career by demonstrating your expertise to employers, making you a more competitive candidate for advanced roles and promotions in sustainable architecture, construction, and facilities management.
- Q15: Are there any prerequisites for USGBC Certification Exams?
- A: The LEED Green Associate exam has no prerequisites. For LEED AP exams, it is recommended (but not required) to have prior LEED project experience. Check the specific requirements for each certification path on the USGBC website.
- Q16: How often do I need to recertify for USGBC Certifications?
- A: USGBC Certifications require credential maintenance through continuing education. LEED Green Associates must earn 15 continuing education hours every two years, while LEED APs must earn 30 hours in the same period to maintain their credentials.