USGBC LEED-GA Online Practice Questions and Exam Preparation

USGBC LEED-GA Online Questions & Answers

• Question 41:

  The intent of waste management in the Materials and Resources credit category is to

  A. specify the use of green materials
  B. promote the use of rapidly renewable resources
  C. reduce the amount of waste and toxins hauled to landfills
  D. increase the use of pre-consumer/post-consumer recycled content
  C. reduce the amount of waste and toxins hauled to landfills

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  The intent of waste management in the Materials and Resources credit category is to reduce the amount of waste and toxins hauled to landfills. This can be achieved through strategies such as recycling, composting, reusing materials, and reducing overall material consumption. By reducing waste, we can conserve natural resources, reduce pollution from waste treatment and disposal processes, and decrease the demand for landfill space..

  References: LEED Green Associate Candidate Handbook, U.S. Green Building Council resources

• Question 42:

  When considering strategies for reducing indoor water use, which plumbing fixture would be excluded?

  A. Urinal
  B. Drip irrigation
  C. Showerhead
  D. Kitchen faucet
  B. Drip irrigation

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  Drip irrigation is a method of watering plants that delivers water directly to the roots through a network of pipes, tubes, valves, and emitters..Drip irrigation is not a plumbingfixture, but a landscaping technique that can reduce outdoor water use by minimizing evaporation, runoff, and overspray12. Plumbing fixtures are devices that provide water for various purposes, such as washing, bathing, cooking, or flushing. Plumbing fixtures include urinals, showerheads, kitchen faucets, and other types of faucets, toilets, bidets, and sinks..Plumbing fixtures are subject to indoor water use reduction strategies in LEED certification, such as installing low-flow or high-efficiency models, using automatic sensors or timers, or implementing water reuse systems34.

• Question 43:

  Which approach helps restore site hydrology and reduce stormwater runoff?

  A. Increasing the size of parking lots
  B. Using green infrastructure and LID
  C. Fully paving the site perimeter
  D. Constructing deeper building basements
  B. Using green infrastructure and LID

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  Green infrastructure and low-impact development (LID) mimic natural hydrology and support LEED Rainwater Management credit objectives.

• Question 44:

  When considering water conservation and water efficient landscaping, which type of water would be most useful for landscape irrigation?

  A. Rainwater
  B. Blackwater
  C. Clean water
  D. potable water
  A. Rainwater

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  Rainwater is the type of water that would be most useful for landscape irrigation when considering water conservation and water efficient landscaping..Rainwater is water that falls from the sky as precipitation, and it can be collected and stored in tanks, barrels, cisterns, or ponds for later use1..Rainwater is a renewable and free source of water that does not require any treatment or pumping, unlike potable water, which is water that is safe for human consumption and often comes from municipal sources2..Potable water is a scarce and valuable resource that should be conserved for drinking,cooking, and hygiene purposes, rather than for irrigation2..Clean water is a vague term that can refer to any water that is free of contaminants, but it does not necessarily mean that it is potable or suitable for irrigation3..Blackwater is water that contains human or animal waste, such as sewage or toilet water, and it poses a health and environmental risk if used for irrigation without proper treatment4..Therefore, rainwater is the best option for landscape irrigation, as it reduces the demand for potable water, lowers the utility bills, and benefits the plants and soil1. Rainwater Harvesting for Landscape Irrigation Potable Water Clean Water Blackwater

• Question 45:

  The Solar Reflective Index (SRI) applies to which concept?

  A. Reducing light pollution
  B. Reducing heat island effect
  C. Avoidance of sensitive habitat
  D. Maximizing access to open space
  B. Reducing heat island effect

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  The Solar Reflective Index (SRI) is a measure of how well a material reflects solar radiation and releases absorbed heat. It is used to evaluate the performance of cool roofs, which can reduce the heat island effect by lowering the surface temperature of buildings and urban areas.

  References.:=

  SRI Calculator | LEEDuser What Is Solar Reflectance Index (SRI) of Materials?

  Picking A Cool Roof:SRI Index Is Key - Roofing Coverage - Facilitiesnet

  Solar Reflectivity . and Solar Reflectance Index (SRI) by Color

  LEED CANADA SOLAR REFLECTANCE AND EMISSIVITY - Vicwest

• Question 46:

  Which is an example of a low-cost Water Efficiency strategy?

  A. Install new flush valves or flow restrictors
  B. Install subsurface cisterns to collect stormwater
  C. Use only compostable toilets throughout the facility
  D. Incorporate an on-site blackwater treatment system
  A. Install new flush valves or flow restrictors

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  Installing new flush valves or flow restrictors is a low-cost strategy to improve water efficiency. These devices reduce the amount of water used in each flush or flow, leading to significant water savings over time. Other strategies like installing subsurface cisterns to collect stormwater, using only compostable toilets throughout the facility, or incorporating an on-site blackwater treatment system can also improve water efficiency, but they typically involve higher upfront costs..

  References: LEED Green Associate Candidate Handbook, U.S. Green Building Council resources

• Question 47:

  When instituting a construction waste management plan, which of the following should be tracked?

  A. Number Of dumpsters used
  B. Volume/weight of materials diverted
  C. Amount of site soils reused on the site
  D. Amount of post-consumer recycled content
  B. Volume/weight of materials diverted

  ---

  a construction waste management plan is a document that outlines how the project will reduce, reuse, recycle, or dispose of the construction and demolition waste generated on site..One of the key components of a construction waste management plan is to track and document the volume or weight of materials that are diverted from landfills or incinerators by redirecting them to other destinations, such as recycling facilities, salvage yards, donation centers, or reuse on site.

  Tracking and documenting the volume or weight of materials diverted is important for several reasons, such as:

  It helps measure the performance and effectiveness of the waste management plan and identify areas for improvement.

  It provides evidence and verification for LEED certification, as LEED v4 requires projects to divert at least 50% or 75% of construction and demolition waste (by weight or volume) from disposal in landfills or incineration facilities for one or two points, respectively3.

  It demonstrates the environmental and economic benefits of waste diversion, such as reducing greenhouse gas emissions, conserving natural resources, saving disposal costs, and creating jobs.

  The number of dumpsters used is not a relevant metric for tracking a construction waste management plan, as it does not indicate how much waste is generated or diverted..The amount of site soils reused on the site is also not a valid indicator, as sitesoils are not considered construction and demolition waste by LEED v43. The amount of post-consumer recycled content is not related to a construction waste management plan, as it refers to the percentage of material in a product that was previously used by

  consumers and diverted from landfills or incinerators before being incorporated into a new product.

• Question 48:

  The purpose of a life-cycle assessment in LEED is to evaluate the potential:

  A. Environmental impacts of a building through its life-cycle
  B. Cost impacts of a building through its life-cycle
  C. Safety impacts of a material through its life-cycle
  D. Human impacts of a material through its life-cycle
  A. Environmental impacts of a building through its life-cycle

  ---

  LEED defines Life Cycle Assessment (LCA) as:

  "Life Cycle Assessment (LCA) analyzes the environmental impacts of a service, material or product through

  its entire life cycle."

  This makes LCA distinct from Life Cycle Costing (LCC), which evaluates economic impact.

• Question 49:

  As of 1996, the Montreal Protocol banned the production of what chemical compound known to have ozone-depleting potential?

  A. Chlorofluorocarbons (CFCs]
  B. Hvdrofluorocarbons (HFCs)
  C. Hvdrofluorocarbons Phaseout Management Plan (HPMP)
  D. Hvdrochlorofluorocarbons (HCFCs)
  A. Chlorofluorocarbons (CFCs]

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  As of 1996, the Montreal Protocol banned the production of chlorofluorocarbons (CFCs), a chemical compound known to have ozone-depleting potential. CFCs are synthetic substances that were widely used as refrigerants, propellants, solvents, and foam-blowing agents. CFCs have high ozone depletion potential (ODP), which means they can destroy the ozone layer that protects the Earth from harmful ultraviolet radiation. The Montreal Protocol is an international treaty that aims to protect the ozone layer by phasing out the production and consumption of ozone-depleting substances..The Montreal Protocol banned the production of CFCs in 1996 fordeveloped countries and in 2010 for developing countries1...

  References: LEED v4 Green Associate Candidate Handbook1, UNEP's Montreal Protocol

• Question 50:

  Which of the following processes is conducted prior to building occupancy and removes indoor airbome contaminants by thoroughly exhausting old air and replacing it with fresh outdoor air?

  A. Bake-out
  B. Flush-out
  C. Air ejection
  D. Hot box analysis
  B. Flush-out

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  A flush-out is a process that is conducted prior to building occupancy and removes indoor airborne contaminants by thoroughly exhausting old air and replacing it with fresh outdoor air..A flush-out is one of the options for achieving the LEED Indoor Air Quality Assessment credit, which aims to reduce indoor air quality problems resulting from construction or renovation and promote the comfort and well-being of occupants1. A flush-out requires that the building be supplied with a total air volume of 14,000 cubic feet of outdoor air per square foot of gross floor area while maintaining an internal temperature of at least 60