LEED-AP-O-M Exam Questions and Answers

QUESTION: 31

An office building has an average annual occupancy of 75% and 30,000 ft2 (2 787 m2) of completely vacant space.
How many occupants should be entered into Portfolio Manager for the vacant office space?

Zero occupants
100 occupants
150 occupants
200 occupants

Answer(s): A

Explanation:

The correct answer is A because zero occupants should be entered into Portfolio Manager for the vacant office space, as stated in the LEED v4.1 O+M Reference Guide1. Portfolio Manager is an online tool that allows projects to benchmark their energy and water performance and track their greenhouse gas emissions. The number of occupants entered into Portfolio Manager should reflect the actual occupancy of the building, not the potential occupancy. The other options are incorrect because they are arbitrary numbers that do not reflect the reality of the vacant office space.

Reference:

LEED v4.1 O+M Reference Guide, page 137
Guide to the LEED AP Operations and Maintenance (O+M) Exam, page 88 LEED v4 AP O+M Mock Exam, page 86

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QUESTION: 32

Which of the following is an environmentally friendly technology for controlling erosion?

Mulching
Laying asphalt
Laying tarpaulin material
Spraying water to contain dust

Answer(s): A

Explanation:

The correct answer is A because mulching is an environmentally friendly technology for controlling erosion, as stated in the web search results12. Mulching involves applying organic or inorganic materials on the soil surface to protect it from water and wind erosion. Mulching can also conserve soil moisture, moderate soil temperature, and enhance soil fertility2. The other options are incorrect because they either do not control erosion effectively or cause environmental harm.

Reference:

Environment-Friendly Erosion and Dust Control Solutions | GRT, Environmentally friendly erosion and dust control solutions section
15 Wonderful Methods to Control Erosion | Earth Eclipse, Applying Mulches section

Mulching is an environmentally friendly technique used to control erosion by providing a protective layer on the soil surface. This layer helps to reduce the impact of raindrops on the soil, thereby decreasing the potential for soil erosion. Mulch can be made from a variety of organic materials, such as shredded bark, straw, or compost, which not only protect the soil from erosion but also add nutrients as they decompose, improve soil structure, and encourage healthy plant growth. Unlike impermeable solutions like asphalt or temporary solutions like tarpaulin, mulching integrates with the natural environment and supports sustainable land management practices.

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QUESTION: 33

How long should a commercial kitchen prep sink be metered to establish a baseline when pursuing the Water
Efficiency Prerequisite, Indoor Water Use Reduction, Option 2?

Six months
12 months
18 months
This type of fixture should not be metered

Answer(s): B

Explanation:

For establishing a baseline in the context of the Water Efficiency Prerequisite, Indoor Water Use Reduction, Option 2, it's critical to have an accurate understanding of the current water usage patterns. This involves metering various water fixtures, including those in commercial kitchens. The goal is to determine the potential for water savings by comparing the baseline data to reduced usage scenarios through efficiency measures.
A 12-month metering period is typically recommended for a few key reasons:
Seasonal Variability: A year-long period captures the seasonal variations in water use, providing a comprehensive understanding of usage patterns. Commercial kitchens might have fluctuating usage based on seasonal menus, events, and peak times, which shorter periods might not fully capture. Data Reliability: A longer data collection period enhances the reliability of the data. It mitigates the impact of any anomalies or outliers that could skew the results in shorter metering durations. Consistency with LEED Requirements: LEED guidelines emphasize the importance of thorough and accurate baseline measurements to inform effective water reduction strategies. A 12-month period aligns with the comprehensive approach LEED encourages for sustainable practices. Operational Changes: A year gives enough time to observe the effects of any operational changes, special events, or other factors that might influence water usage. This ensures that the baseline is representative of typical operations.

Reference:

The approach aligns with the general LEED principles for establishing baselines for water and energy use, which advocate for capturing data over significant periods to ensure accuracy and reliability. Although the specific LEED BD+C or O+M documentation does not detail the metering period for each specific fixture type, the 12-month period is a widely accepted standard for establishing baselines in building operations, including water usage in commercial kitchens. This duration provides a comprehensive view of water use, accommodating seasonal changes and varying operational activities, which is essential for setting realistic and achievable water reduction goals in line with LEED's sustainability objectives.

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QUESTION: 34

To determine possible credit compliance for Energy and Atmosphere Credit, Advanced Energy Metering, what information needs to be verified?

That the meter data is remotely accessible
That the meter is capable of storing data for at least 12 months
That the meter(s) can be manually read
That the meter(s) record data at a minimum of 15 minute intervals

Answer(s): D

Explanation:

The correct answer is D because the meter(s) must record data at a minimum of 15 minute intervals to comply with Energy and Atmosphere Credit, Advanced Energy Metering, as stated in the LEED v4.1 O+M Reference Guide1. This requirement ensures that the meter data is granular enough to capture the variations in energy consumption and demand, and to enable the identification of energy saving opportunities1. The other options are incorrect because they are either not required or relevant for this credit.

Reference:

LEED v4.1 O+M Reference Guide, page 149
Guide to the LEED AP Operations and Maintenance (O+M) Exam, page 91 LEED v4 AP O+M Mock Exam, page 87

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QUESTION: 35

One tenant occupying 50% of a commercial office building pursuing LEED® O+M certification has provided purchasing dat

The other tenants in the building occupying the remaining 50% have chosen not to provide purchasing data. For credits related to purchasing, the LEED applicant must
estimate the purchases of the other tenants and assume they are compliant in the Materials and Resources credit calculations
estimate the purchases of the other tenants and assume they are noncompliant in the Materials and Resources credit calculations
estimate the purchases of the other tenants and apply the compliance rate from LEED applicant in the Materials and Resources credit calculations
exclude the purchases of the other tenants from the Materials and Resources credit calculations

Answer(s): D

Explanation:

The LEED applicant must exclude the purchases of the other tenants from the Materials and Resources credit calculations, because they have not provided purchasing data and are not participating in the LEED project. The LEED applicant can only include the purchases that are under their control and can be verified.

Reference:

LEED AP O+M Exam Guide, page 94
LEED v4.1 O+M Reference Guide, MRc1: Purchasing, page 163

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US Green Building Council LEED-AP-O-M Exam (page: 7) US Green Building Council LEED AP Operations + Maintenance Updated on: 15-Feb-2026

QUESTION: 31

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QUESTION: 32

Explanation:

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QUESTION: 33

Explanation:

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QUESTION: 34

Explanation:

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QUESTION: 35

Explanation:

Reference:

US Green Building Council LEED-AP-O-M Exam (page: 7)
US Green Building Council LEED AP Operations + Maintenance
Updated on: 15-Feb-2026