LEED-AP-O+M Exam Dumps : LEED AP Operations + Maintenance (LEED AP O+M)

the mercury content of the new T8 lamps remained the same; however, the average life of the bulb increasedJust Short Explanation: The decrease in the average picogram per lumen hour indicates an improvement in the environmental impact of the lamps. This can happen if the mercury content remains constant while the lifespan of the lamps increases, resulting in less mercury used over time per unit of light produced.

References: The information about T8 lamps indicates that newer models are designed to be energy-efficient with a longer lifespan while maintaining a low mercury content, which would contribute to a lower picogram per lumen hour ratio12.

When a building is recertified in LEED Operations and Maintenance, it should use the LEED version that is current at the time of registration for recertification. This approach ensures that the building is being assessed under the most recent standards and requirements, reflecting the latest advancements and best practices in green building.References:LEED Operations and Maintenance Reference Guide, Introduction and Overview section.

When a building initially certified under LEED EB v2.0 seeks recertification, the appropriate version to use is the one that is current at the time of registration for recertification. LEED rating systems go through updates and revisions, and at any given point, they can be either open for registration and certification, closed for registration but open for certification, or completely closed for both registration and certification (sunset). The deadlines for these phases are published by the USGBC. Therefore, a building pursuing recertification must align with the most current version available at the time of its registration for recertification.

The correct answer is B because the transportation surveys must be distributed across all tenants proportionately, according to their populations, as stated in the LEED v4.1 O+M Reference Guide1. This ensures that the survey results are representative of the actual transportation patterns of the building occupants and avoids sampling bias. The other options are incorrect because they either do not account for the population size of each tenant or are not relevant for the survey distribution.

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• LEED v4.1 O+M Reference Guide, page 123
• Guide to the LEED AP Operations and Maintenance (O+M) Exam, page 83
• LEED v4 AP O+M Mock Exam, page 89 =========================================