Free LEED-GA sample questions

Correct answer: A xeriscape design that requires no permanent irrigation system after establishment.

Exemplary performance for Outdoor Water Use Reduction requires a 100% reduction from the baseline. A xeriscape design that requires no permanent irrigation achieves this 100% reduction. Option A represents a 50% reduction (1,250,000 / 2,500,000), which would earn the base credit but not exemplary performance. Option B represents a 30% reduction, meeting only the prerequisite. Option D represents a 70% reduction, which is excellent but does not meet the 100% threshold for exemplary performance.

Correct answers: Reduction in the required size and capacity of the HVAC system.; Improved potential for passive solar heating and daylighting.; Decreased peak heating and cooling loads on the building envelope.

The integrative process emphasizes early analysis of interconnected systems. Optimizing orientation and massing directly impacts solar heat gain and daylight access. This reduces peak heating/cooling loads (C), which in turn allows for a smaller, more efficient HVAC system (A), a concept known as right-sizing. It also maximizes the potential for passive strategies like daylighting (B). Sourcing of local materials (D) is a separate consideration related to the Materials and Resources category and is not a direct result of orientation and massing decisions.

Correct answer: True

This statement is true. Regional Priority credits are bonus points. For any given project location, USGBC designates six existing LEED credits as being of special importance. If a project earns one of these designated credits, it automatically receives one bonus point in the Regional Priority category, up to a maximum of four bonus points.

Correct answer: Rapidly Renewable Materials only

Bamboo is a type of grass with a harvest cycle of less than 10 years, so it qualifies as a rapidly renewable material. However, since it is harvested and manufactured in China, it does not meet the requirement for Regional Materials, which must be extracted and manufactured within a 500-mile radius of the project site in Atlanta. FSC certification is for wood products from responsibly managed forests and is a separate attribute not mentioned in the product description.

Correct answer: Specify a concrete mix that incorporates white cement and lighter-colored aggregates to achieve an SRI of at least 29.

To mitigate the heat island effect for non-roof hardscapes, LEED requires materials to have a minimum SRI of 29. The most direct and effective strategy is to change the material specification itself to meet this requirement. Using white cement and lighter aggregates directly increases the SRI value. A dark sealant would lower the SRI. Shading can be a valid strategy, but shading only 50% may not be sufficient depending on the rest of the site, and changing the material is a more direct approach. Open grid pavers are another valid strategy but would require a complete redesign of the plaza, making it less practical than adjusting the concrete mix.

Correct answer: Providing no new parking and instead leasing spaces in a nearby public garage.

The goal of the Reduced Parking Footprint credit is to minimize the environmental harms associated with parking, including land consumption and encouraging driving. Providing no new parking is the highest-achieving strategy for this credit. Exceeding zoning requirements is the opposite of the credit's intent. Providing preferred parking is a separate credit (Green Vehicles). Providing only the minimum required parking is a good first step but providing no new parking is a specific strategy that earns the most points.

Correct answer: Providing third-party verification of LEED project documentation and administering professional credentialing exams.

A key distinction to understand is the separate roles of the USGBC and GBCI. The USGBC (U.S. Green Building Council) is responsible for developing the LEED rating systems. The GBCI (Green Business Certification Inc.) was established to provide independent, third-party administration of the certification and credentialing processes. This includes reviewing project submissions and administering exams like the LEED Green Associate.

Correct answer: Sealing all ductwork and air handlers from the moment they are installed on site until the system is ready for testing and balancing.

The Sheet Metal and Air Conditioning National Contractors Association (SMACNA) guidelines for construction IAQ emphasize protecting the HVAC system from contamination. The most critical action is to seal all ductwork openings and equipment to prevent dust, debris, and moisture from entering the system during construction. Running the system can draw contaminants in. Using MERV 8 filters is a requirement, but it's done *after* the system is protected during construction and before occupancy. Cleaning ducts is a remedial action, whereas sealing them is a preventative one.

Correct answers: Initial purchase price of the light fixtures.; Annual electricity costs to operate the lights.; Projected costs for lamp and ballast replacement over the life of the system.; Disposal and recycling costs at the end of the fixtures' useful life.

A life-cycle cost analysis (LCCA) considers all costs associated with a product or system from 'cradle to grave'. This includes the initial purchase and installation costs (A), ongoing operational costs like energy (B), maintenance and replacement costs (D), and end-of-life disposal or salvage costs (E). Subjective values like marketing appeal (C) are typically not included in a standard LCCA.

Correct answer: The project architect who has been involved from schematic design through construction administration.

To earn the LEED AP credit, the accredited professional must be a 'principal participant' involved in the project from an early stage and throughout the process. The project architect who is involved from design through construction is a core team member and clearly qualifies. The other roles represent minimal or late-stage involvement and would not meet the intent of the credit, which is to have LEED expertise integrated into the project's decision-making process.