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Master US Green Building Council LEED-Green-Associate Exam with Reliable Practice Questions

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Last exam update: Nov 15,2024
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Question 1

The cost of Commissioning (Cx) Is often repaid with


Correct : C

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.Reference:Building Commissioning: A Golden Opportunity for Reducing Energy Costs and Greenhouse Gas Emissions1; LEED v4 BD+C Reference Guide, Energy and Atmosphere, page 81


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Question 2

Which of the following is a cause of surface water degradation?


Correct : C

One of the causes of surface water degradation is the expansion of impervious surfaces. Impervious surfaces are those that do not allow water to infiltrate into the soil, such as roads, parking lots, rooftops, and sidewalks. Impervious surfaces increase the amount and speed of stormwater runoff, which can carry pollutants, sediments, nutrients, and pathogens into surface water bodies such as streams, rivers, lakes, and oceans.Impervious surfaces also reduce groundwater recharge, lower base flow in streams, increase flooding and erosion, alter stream morphology and habitat, and affect water temperature and dissolved oxygen levels2.Therefore, impervious surfaces can have significant negative impacts on the quality and quantity of surface water resources.Reference:Surface Water as a cause of land degradation from dryland salinity3; What is Water Pollution?4


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Question 3

Which of the following does LEED promote by encouraging compact development?


Correct : B

One of the things that LEED promotes by encouraging compact development is walkability.Compact development is a form of urban planning that aims to reduce sprawl and make more efficient use of land and resources by increasing density, diversity, and connectivity of land uses5. Compact development can enhance walkability by creating mixed-use neighborhoods that provide a variety of destinations within walking distance, such as shops, services, workplaces, schools, parks, and transit stops. Walkability can offer multiple benefits for the environment, health, economy, and social equity.For example, walkability can reduce greenhouse gas emissions and air pollution by replacing car trips with walking or transit; improve physical and mental health by increasing physical activity and reducing stress; support local businesses and generate tax revenues by increasing foot traffic and property values; and foster social cohesion and civic engagement by creating vibrant public spaces and enhancing accessibility for all6.Reference:Compact urban development6; LEED v4 BD+C Reference Guide, Location and Transportation, page 15


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Question 4

Which methodology is used to evaluate and study the economic performance of a building or system over its entire life?


Correct : D

The methodology that is used to evaluate and study the economic performance of a building or system over its entire life is life cycle assessment (LCA).LCA is a technique that assesses the environmental aspects and potential impacts associated with a product, process, or service throughout its life cycle, from raw material extraction to end-of-life disposal or recycling7.LCA can also include an economic dimension by incorporating life cycle costing (LCC), which estimates the total costs of ownership over the life cycle of a product or system8. By combining LCA and LCC, one can evaluate the environmental and economic performance of a building or system in a holistic way, taking into account both the initial investment costs and the long-term operational costs.This can help identify trade-offs and synergies between environmental and economic objectives, as well as opportunities for improving efficiency and reducing impacts9.Reference:Life-cycle assessment7; What is Life Cycle Assessment (LCA)?8; Life Cycle Costing in Construction Projects: A Case Study of a Municipal Building in Portugal9


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Question 5

Which of the following is a design and planning strategy for reducing energy demand?


Correct : B

Sizing the building appropriately means designing the building to meet the needs and expectations of the occupants, without creating excess space that would require more energy to heat, cool, and light. This strategy reduces the energy demand of the building and also saves on construction costs and materials.


LEED v4 for Building Design and Construction, p. 36

LEED Green Associate Candidate Handbook, p. 11

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