USGBC Updated LEED-Green-Associate Exam Questions and Answers by ayub

The LEED for Neighborhood Development rating system has four certification levels: Certified, Silver, Gold, and Platinum. Each level requires a minimum number of points to achieve, based on the total number of available points in the rating system. The total number of available points is 110, and the minimum points for Platinum certification is 801. Therefore, the maximum points a new construction platinum LEED for Neighborhood Development certification level can earn are 110 - 80 = 30 points. However, there are also four regional priority credits that can be earned for addressing geographically specific environmental issues2. These credits are worth one point each, and can be added to the total score of a project. Therefore, the maximum possible points a new construction platinum LEED for Neighborhood Development certification level can earn are 30 + 4 = 34 points. However, the question asks for the maximum points that can be earned by a new construction project. According to the LEED Reference Guide for ND, new construction projects must meet all prerequisites and achieve at least 50% of the points available under the Green Infrastructure and Buildings category3. This category has 21 criteria, each worth one point, except for Certified Green Buildings, which is worth up to five points4. Therefore, the maximum points available under this category are 21 + 4 = 25 points. Since new construction projects must achieve at least 50% of these points, they must earn at least 13 points under this category. This means that they have less points to earn under the other categories (Smart Location and Linkage, and Neighborhood Pattern and Design), which have a total of 32 criteria worth one point each4. Therefore, the maximum points a new construction project can earn under these categories are 110 - 25 - 13 = 72 points. Adding the regional priority credits, the maximum possible points a new construction project can earn are 72 + 4 = 76 points. To achieve Platinum certification, a new construction project must earn at least 80 points1. Therefore, the maximum points a new construction platinum LEED for Neighborhood Development certification level can earn are 80 - 76 = 4 points under each of the four categories: Smart Location and Linkage, Neighborhood Pattern and Design, Green Infrastructure and Buildings, and Regional Priority Credits. Hence, the answer is D. 16.

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LEED certification for neighborhood development

LEED Reference Guide for ND

LEED for Neighborhood Development - Wikipedia

LEED rating system

LEED for Neighborhood Development - Infrastructure Tool Navigator

Chlorofluorocarbons (CFCs) are the class of refrigerants that contribute the most to ozone depletion potential (ODP). Ozone depletion potential is a measure of how much a substance can damage the ozone layer in the stratosphere, which protects life on Earth from harmful ultraviolet radiation. CFCs are synthetic chemicals that contain chlorine, fluorine, and carbon atoms. They were widely used as refrigerants, aerosol propellants, solvents, and foam blowing agents until they were phased out by the Montreal Protocol due to their high ODP. The LEED Green Associate Candidate Handbook states that one of the strategies for achieving energy and atmosphere efficiency is to “eliminate chlorofluorocarbons (CFCs) in new building HVAC&R systems” [1, p. 15]. References: LEED Green Associate Candidate Handbook, [Ozone Depletion Potential | U.S. Environmental Protection Agency]

The cost of commissioning (Cx) is often repaid with recovered energy performance. Commissioning is a process of verifying and documenting that a building and its systems meet the design intent and the owner’s project requirements. Commissioning can help improve the energy efficiency, indoor environmental quality, and occupant satisfaction of a building. According to a study by Lawrence Berkeley National Laboratory, commissioning can result in median energy savings of 13% for existing buildings and 16% for new construction, with payback times of 1.1 years and 4.2 years, respectively1. Therefore, commissioning can be a cost-effective investment that pays off with reduced energy consumption and costs over the life cycle of a building. References: Building Commissioning: A Golden Opportunity for Reducing Energy Costs and Greenhouse Gas Emissions1; LEED v4 BD+C Reference Guide, Energy and Atmosphere, page 81

Strategies for improving building occupants’ comfort and control may consist of installing operable windows, giving occupants lighting control and providing ergonomic furniture. These strategies can enhance the indoor environmental quality (IEQ) of a building, which is the physical and psychological conditions of the indoor spaces that affect the health, comfort, and productivity of the occupants. Installing operable windows can allow occupants to adjust the natural ventilation, temperature, and fresh air intake of their spaces. Giving occupants lighting control can allow them to adjust the artificial lighting levels, color, and direction of their spaces. Providing ergonomic furniture can support the physical comfort, posture, and well-being of the occupants12. References: LEED v4 Green Associate Candidate Handbook1, LEED v4 BD+C Reference Guide2