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

An ASHRAE Level 2 audit focuses on a detailed analysis of the building's energy systems and their operation against predefined sequences of operation to identify energy conservation opportunities. It includes a thorough review of building energy use and a site survey to identify potential energy-saving measures. Commissioning of an existing building, on the other hand, is a more comprehensive process that involves verifying and documenting that all of the building's systems perform interactively according to the owner's current operational needs and the building's design intent. It often includes system testing, calibration, and adjustments to ensure optimal performance.References:The distinction between an ASHRAE Level 2 audit and commissioning is detailed in the Energy and Atmosphere section of the LEED O+M Reference Guide, emphasizing the different objectives and scope of these activities.

The calculation used to achieve the Materials and Resources Credit, Purchasing - Ongoing, focuses on the cost of compliant furniture. This approach aligns with the intent of the credit, which is to encourage the purchase of sustainable and environmentally friendly products. By assessing the cost of compliant furniture, the credit incentivizes the selection of products that meet specific environmental criteria, thereby contributing to a more sustainable procurement practice.

This answer is correct because it matches the requirement of the Materials and Resources Credit, Purchasing - Lamps, which aims to reduce the environmental and health impacts of mercury used in lamps.The credit requires projects to purchase lamps that have a mercury content of 80 picograms per lumen hour or less for at least 90% of the total number of lamps purchased during the performance period1. The other options are incorrect because they either have a higher mercury content threshold or a higher percentage of lamps to meet the threshold.

References: =LEED v4.1 OPERATIONS AND MAINTENANCE - WAP Sustainability Consulting, page 40;LEED v4: Building Operations + Maintenance Guide | U.S. Green Building Council, page 40.