LEED AP – Leadership in Energy and Environmental
Design Accredited Professional Original Practice
Questions & Answers | Comprehensive LEED AP
Exam Preparation Study Guide | Green Building,
Sustainable Sites, Water Efficiency, Energy &
Atmosphere, Materials & Resources, Indoor
Environmental Quality, Integrative Process, Building
Performance, Sustainable Design Strategies &
Detailed Rationales
Question 1: According to the LEED v4 rating system, what is the minimum
percentage of building floor area that must be served by public transit, bicycle
networks, or pedestrian access to qualify for Location and Transportation
Credit, Access to Quality Transit?
A. 10%
B. 25%
C. 50%
D. 75%
CORRECT ANSWER: C. 50%
Rationale: LEED v4 Location and Transportation Credit, Access to Quality Transit,
requires that at least 50% of the building's floor area be located within a 1/4-mile (400-
meter) walking distance of a bus stop or within a 1/2-mile (800-meter) walking distance
of a rail station or ferry terminal. This encourages sustainable commuting and reduces
reliance on single-occupancy vehicles.
Question 2: Which of the following is a key requirement for the Energy and
Atmosphere Prerequisite, Fundamental Commissioning and Verification,
regarding the building envelope?
A. A thermal comfort survey must be completed post-occupancy.
B. The building envelope must be designed to exceed ASHRAE 90.1 standards by 10%.
C. The building envelope must be inspected to verify that it meets the owner's project
requirements and design intent.
D. An energy model must be used to confirm the building envelope's performance.
CORRECT ANSWER: C. The building envelope must be inspected to verify that
it meets the owner's project requirements and design intent.
Rationale: Fundamental Commissioning requires that the building envelope (roof,
walls, windows, foundation) be inspected during construction to ensure it is installed
according to the design documents and meets the owner's project requirements (OPR).
This process verifies that the physical construction matches the intended thermal and
moisture performance criteria.
,Question 3: In the Materials and Resources category, what is the primary
environmental benefit of using materials with Environmental Product
Declarations (EPDs)?
A. They guarantee the material is sourced from within 500 miles of the project site.
B. They provide transparent, third-party verified information about a product's life-cycle
environmental impact.
C. They certify that the material contains a minimum of 20% post-consumer recycled
content.
D. They ensure the material is rapidly renewable and harvested within a 10-year cycle.
CORRECT ANSWER: B. They provide transparent, third-party verified
information about a product's life-cycle environmental impact.
Rationale: An Environmental Product Declaration (EPD) is a standardized, verified
document that communicates the environmental impact of a product throughout its
entire life cycle, from raw material extraction to disposal. This transparency is the core
objective of the Building Product Disclosure and Optimization credits, allowing project
teams to make informed, comparative material selections based on life-cycle assessment
(LCA) data.
Question 4: What is the primary purpose of the Integrative Process credit in
LEED v4?
A. To streamline the construction documentation submittal process.
B. To identify synergies and opportunities for sustainable design during the pre-design
phase.
C. To provide a checklist for project management meetings.
D. To replace the need for a commissioning agent.
CORRECT ANSWER: B. To identify synergies and opportunities for sustainable
design during the pre-design phase.
Rationale: The Integrative Process credit requires early collaboration among key
stakeholders (owner, architects, engineers, contractors) to analyze the project's systems
and site. By conducting an integrative analysis early in the design process, the team can
identify cost-effective strategies to achieve high-performance outcomes—for example,
using daylight modeling to reduce lighting loads, which in turn reduces HVAC loads and
allows for smaller mechanical systems.
Question 5: For a project pursuing LEED BD+C certification, what is the
maximum allowable open space that may be hardscape, such as walkways and
patios, to earn a point under Sustainable Sites Credit, Open Space?
,A. 15%
B. 25%
C. 40%
D. 75%
CORRECT ANSWER: B. 25%
Rationale: The Sustainable Sites Credit, Open Space, requires that projects provide
vegetated open space on the site. The intent is to promote biodiversity, manage
stormwater, and provide outdoor space for occupants. The credit specifically limits the
amount of open space that can be hardscape to 25% of the total open space area.
Question 6: Which standard is used as the primary reference for establishing
minimum indoor air quality performance in LEED v4?
A. ASHRAE Standard 52.2
B. ASHRAE Standard 55
C. ASHRAE Standard 62.1
D. ASHRAE Standard 90.1
CORRECT ANSWER: C. ASHRAE Standard 62.1
Rationale: ASHRAE Standard 62.1, "Ventilation for Acceptable Indoor Air Quality," is
the referenced standard for ventilation system design in LEED. It provides the minimum
ventilation rates and other requirements for indoor air quality that are used in the Indoor
Environmental Quality (EQ) category, specifically in the Minimum Indoor Air Quality
Performance prerequisite.
Question 7: What is a key strategy for achieving the Water Efficiency
Prerequisite, Outdoor Water Use Reduction?
A. Installing high-efficiency irrigation controllers that include moisture sensors and rain
shutoff devices.
B. Using native or adapted plant species that require no irrigation after establishment.
C. Installing water-efficient cooling towers.
D. Diverting all stormwater runoff from the site.
CORRECT ANSWER: B. Using native or adapted plant species that require no
irrigation after establishment.
Rationale: The Outdoor Water Use Reduction prerequisite requires a 30% reduction in
outdoor water use compared to a baseline. The most effective strategy is to eliminate
the need for irrigation altogether by selecting plants that are native or adapted to the
local climate, which can survive with only natural rainfall.
, Question 8: Which of the following is an acceptable way to comply with the
Energy and Atmosphere Prerequisite, Building-Level Energy Metering?
A. Installing a sub-meter to monitor only the HVAC system.
B. Installing a single, whole-building energy meter that is set up to record all energy
sources used by the building.
C. Using the utility bill provided by the local utility company.
D. Implementing a building automation system that monitors lighting only.
CORRECT ANSWER: B. Installing a single, whole-building energy meter that is
set up to record all energy sources used by the building.
Rationale: This prerequisite requires that a project install a new or use an existing
whole-building energy meter that measures and records all energy sources (electricity,
natural gas, fuel oil, etc.) used in the building. The meter must be capable of aggregating
data and reporting it to the building owner and operator.
Question 9: How does LEED define a "rapidly renewable" material?
A. A material that can be recycled into new products.
B. A material that is extracted from a local source within 500 miles.
C. A plant-based material that matures within a 10-year cycle.
D. A material that is made from at least 20% recycled content.
CORRECT ANSWER: C. A plant-based material that matures within a 10-year
cycle.
Rationale: LEED defines rapidly renewable materials as agricultural products (both
animal and plant-based) that are harvested within a 10-year cycle. Examples include
bamboo, cork, wool, and straw. Using these materials reduces the depletion of finite
resources and supports sustainable agricultural practices.
Question 10: What is the primary intent of the Sustainable Sites Credit, Heat
Island Reduction?
A. To reduce the amount of impervious surfaces on a site.
B. To minimize the impact of the built environment on the microclimate and wildlife
habitats.
C. To reduce the temperature difference between the site and surrounding areas to
mitigate the urban heat island effect.
D. To encourage the use of high-albedo roofing materials only.
CORRECT ANSWER: C. To reduce the temperature difference between the site
and surrounding areas to mitigate the urban heat island effect.
Rationale: The Heat Island Reduction credit is designed to reduce heat island effects,
where dark, impervious surfaces (like asphalt and dark roofs) absorb solar radiation and
Design Accredited Professional Original Practice
Questions & Answers | Comprehensive LEED AP
Exam Preparation Study Guide | Green Building,
Sustainable Sites, Water Efficiency, Energy &
Atmosphere, Materials & Resources, Indoor
Environmental Quality, Integrative Process, Building
Performance, Sustainable Design Strategies &
Detailed Rationales
Question 1: According to the LEED v4 rating system, what is the minimum
percentage of building floor area that must be served by public transit, bicycle
networks, or pedestrian access to qualify for Location and Transportation
Credit, Access to Quality Transit?
A. 10%
B. 25%
C. 50%
D. 75%
CORRECT ANSWER: C. 50%
Rationale: LEED v4 Location and Transportation Credit, Access to Quality Transit,
requires that at least 50% of the building's floor area be located within a 1/4-mile (400-
meter) walking distance of a bus stop or within a 1/2-mile (800-meter) walking distance
of a rail station or ferry terminal. This encourages sustainable commuting and reduces
reliance on single-occupancy vehicles.
Question 2: Which of the following is a key requirement for the Energy and
Atmosphere Prerequisite, Fundamental Commissioning and Verification,
regarding the building envelope?
A. A thermal comfort survey must be completed post-occupancy.
B. The building envelope must be designed to exceed ASHRAE 90.1 standards by 10%.
C. The building envelope must be inspected to verify that it meets the owner's project
requirements and design intent.
D. An energy model must be used to confirm the building envelope's performance.
CORRECT ANSWER: C. The building envelope must be inspected to verify that
it meets the owner's project requirements and design intent.
Rationale: Fundamental Commissioning requires that the building envelope (roof,
walls, windows, foundation) be inspected during construction to ensure it is installed
according to the design documents and meets the owner's project requirements (OPR).
This process verifies that the physical construction matches the intended thermal and
moisture performance criteria.
,Question 3: In the Materials and Resources category, what is the primary
environmental benefit of using materials with Environmental Product
Declarations (EPDs)?
A. They guarantee the material is sourced from within 500 miles of the project site.
B. They provide transparent, third-party verified information about a product's life-cycle
environmental impact.
C. They certify that the material contains a minimum of 20% post-consumer recycled
content.
D. They ensure the material is rapidly renewable and harvested within a 10-year cycle.
CORRECT ANSWER: B. They provide transparent, third-party verified
information about a product's life-cycle environmental impact.
Rationale: An Environmental Product Declaration (EPD) is a standardized, verified
document that communicates the environmental impact of a product throughout its
entire life cycle, from raw material extraction to disposal. This transparency is the core
objective of the Building Product Disclosure and Optimization credits, allowing project
teams to make informed, comparative material selections based on life-cycle assessment
(LCA) data.
Question 4: What is the primary purpose of the Integrative Process credit in
LEED v4?
A. To streamline the construction documentation submittal process.
B. To identify synergies and opportunities for sustainable design during the pre-design
phase.
C. To provide a checklist for project management meetings.
D. To replace the need for a commissioning agent.
CORRECT ANSWER: B. To identify synergies and opportunities for sustainable
design during the pre-design phase.
Rationale: The Integrative Process credit requires early collaboration among key
stakeholders (owner, architects, engineers, contractors) to analyze the project's systems
and site. By conducting an integrative analysis early in the design process, the team can
identify cost-effective strategies to achieve high-performance outcomes—for example,
using daylight modeling to reduce lighting loads, which in turn reduces HVAC loads and
allows for smaller mechanical systems.
Question 5: For a project pursuing LEED BD+C certification, what is the
maximum allowable open space that may be hardscape, such as walkways and
patios, to earn a point under Sustainable Sites Credit, Open Space?
,A. 15%
B. 25%
C. 40%
D. 75%
CORRECT ANSWER: B. 25%
Rationale: The Sustainable Sites Credit, Open Space, requires that projects provide
vegetated open space on the site. The intent is to promote biodiversity, manage
stormwater, and provide outdoor space for occupants. The credit specifically limits the
amount of open space that can be hardscape to 25% of the total open space area.
Question 6: Which standard is used as the primary reference for establishing
minimum indoor air quality performance in LEED v4?
A. ASHRAE Standard 52.2
B. ASHRAE Standard 55
C. ASHRAE Standard 62.1
D. ASHRAE Standard 90.1
CORRECT ANSWER: C. ASHRAE Standard 62.1
Rationale: ASHRAE Standard 62.1, "Ventilation for Acceptable Indoor Air Quality," is
the referenced standard for ventilation system design in LEED. It provides the minimum
ventilation rates and other requirements for indoor air quality that are used in the Indoor
Environmental Quality (EQ) category, specifically in the Minimum Indoor Air Quality
Performance prerequisite.
Question 7: What is a key strategy for achieving the Water Efficiency
Prerequisite, Outdoor Water Use Reduction?
A. Installing high-efficiency irrigation controllers that include moisture sensors and rain
shutoff devices.
B. Using native or adapted plant species that require no irrigation after establishment.
C. Installing water-efficient cooling towers.
D. Diverting all stormwater runoff from the site.
CORRECT ANSWER: B. Using native or adapted plant species that require no
irrigation after establishment.
Rationale: The Outdoor Water Use Reduction prerequisite requires a 30% reduction in
outdoor water use compared to a baseline. The most effective strategy is to eliminate
the need for irrigation altogether by selecting plants that are native or adapted to the
local climate, which can survive with only natural rainfall.
, Question 8: Which of the following is an acceptable way to comply with the
Energy and Atmosphere Prerequisite, Building-Level Energy Metering?
A. Installing a sub-meter to monitor only the HVAC system.
B. Installing a single, whole-building energy meter that is set up to record all energy
sources used by the building.
C. Using the utility bill provided by the local utility company.
D. Implementing a building automation system that monitors lighting only.
CORRECT ANSWER: B. Installing a single, whole-building energy meter that is
set up to record all energy sources used by the building.
Rationale: This prerequisite requires that a project install a new or use an existing
whole-building energy meter that measures and records all energy sources (electricity,
natural gas, fuel oil, etc.) used in the building. The meter must be capable of aggregating
data and reporting it to the building owner and operator.
Question 9: How does LEED define a "rapidly renewable" material?
A. A material that can be recycled into new products.
B. A material that is extracted from a local source within 500 miles.
C. A plant-based material that matures within a 10-year cycle.
D. A material that is made from at least 20% recycled content.
CORRECT ANSWER: C. A plant-based material that matures within a 10-year
cycle.
Rationale: LEED defines rapidly renewable materials as agricultural products (both
animal and plant-based) that are harvested within a 10-year cycle. Examples include
bamboo, cork, wool, and straw. Using these materials reduces the depletion of finite
resources and supports sustainable agricultural practices.
Question 10: What is the primary intent of the Sustainable Sites Credit, Heat
Island Reduction?
A. To reduce the amount of impervious surfaces on a site.
B. To minimize the impact of the built environment on the microclimate and wildlife
habitats.
C. To reduce the temperature difference between the site and surrounding areas to
mitigate the urban heat island effect.
D. To encourage the use of high-albedo roofing materials only.
CORRECT ANSWER: C. To reduce the temperature difference between the site
and surrounding areas to mitigate the urban heat island effect.
Rationale: The Heat Island Reduction credit is designed to reduce heat island effects,
where dark, impervious surfaces (like asphalt and dark roofs) absorb solar radiation and
