[Nov-2025] Exam LEED-AP-BD-C: New Brain Dump Professional - ActualPDF
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NEW QUESTION # 40
Which individual occupant lighting control meets the requirements of Indoor Environmental Quality Credit, Interior Lighting?
- A. Three Level (on, 50%, off)
- B. Two Level (on, off)
- C. Three Level (on, 75%, off)
- D. Three Level (on, 25%, off)
Answer: D
Explanation:
The Indoor Environmental Quality Credit, Interior Lighting, requires the project team to provide individual occupant lighting control for at least 90% of the individual occupant spaces, or at least 50% of the shared multi-occupant spaces. The lighting control must enable occupants to adjust the lighting to suit their individual tasks and preferences, and must have at least three lighting levels, excluding off1. Therefore, a three level (on, 25%, off) lighting control meets the requirements of this credit, while a two level (on, off) lighting control does not. A three level (on, 50%, off) or a three level (on, 75%, off) lighting control may also meet the requirements, depending on the lighting power density and the daylight availability in the space2.
References:
*LEED v4 Reference Guide for Building Design and Construction, Indoor Environmental Quality Credit:
Interior Lighting, page 7071
*Interior lighting | U.S. Green Building Council3
NEW QUESTION # 41
A contractor is building a retirement community project. 30% of the building's product costs were derived from reused/salvaged materials or met recycled content criteria. Which of the following credits can the LEED AP submit towards certification?
- A. Materials and Resources Credit, Building Product Disclosure and Optimization - Sourcing of Raw Materials
- B. Materials and Resources Credit, Building Product Disclosure and Optimization - Material Ingredients
- C. Materials and Resources Prerequisite, Construction and Demolition - Waste Management Planning
- D. Materials and Resources Credit, Building Product Disclosure and Optimization - Environmental Product Declarations
Answer: A
Explanation:
The Materials and Resources Credit, Building Product Disclosure and Optimization - Sourcing of Raw Materials rewards projects that use materials that have optimized extraction processes by limiting or eliminating the extraction of new resources, the reuse of materials or the use of recycled materials1. According to the LEED Reference Guide for Building Design and Construction2, the credit has two options: Option 1. Raw Material Source and Extraction Reporting and Option 2. Leadership Extraction Practices. Option 1 requires the project to use at least 20 permanently installed products from at least five different manufacturers that have publicly released a report from their raw material suppliers which include extraction locations, a commitment to long-term ecologically responsible land use, a commitment to reducing environmental harms from extraction and/or manufacturing processes, and a commitment to meeting applicable standards or programs voluntarily that address responsible sourcing criteria2. Option 2 requires the project to use products that meet at least one of the responsible sourcing criteria below for at least 25%, by cost, of the total value of permanently installed building products in the project:
* Extended producer responsibility. Products purchased from a manufacturer (producer) that participates in an extended producer responsibility program or is directly responsible for extended producer responsibility.
* Bio-based materials. Bio-based products must meet the Sustainable Agriculture Network's Sustainable Agriculture Standard. Bio-based raw materials must be tested using ASTM Test Method D6866 and be legally harvested, as defined by the exporting and receiving country. Exclude hide products, such as leather and other animal skin material.
* Wood products. Wood products must be certified by the Forest Stewardship Council or USGBC- approved equivalent.
* Materials reuse. Reused products must include salvaged, refurbished, or reused products.
* Recycled content. Recycled content is the sum of postconsumer recycled content plus one-half the preconsumer recycled content, based on cost. Products meeting recycled content criteria are valued at
100% of their cost for the purposes of credit achievement calculation.
* USGBC approved program. Other USGBC approved programs meeting leadership extraction criteria.
Therefore, among the given options, only Option A is relevant to the use of reused/salvaged materials or recycled content, as they can contribute to the materials reuse or recycled content criteria under Option
2. Option B is a prerequisite that requires the project to develop and implement a construction and demolition waste management plan that identifies the materials to be diverted from disposal and whether the materials will be sorted on-site or co-mingled2. Option C is a credit that requires the project to use at least 20 different permanently installed products from at least five different manufacturers that use any of the following programs to demonstrate the chemical inventory of the product to at least 0.1% (1000 ppm):
* Health Product Declaration. The end use product has a published, complete Health Product Declaration with full disclosure of known hazards in compliance with the Health Product Declaration Open Standard.
* Cradle to Cradle. The end use product has been certified at the Cradle to Cradle v2 Basic level or Cradle to Cradle v3 Bronze level.
* REACH Optimization. The end use product is compliant with REACH Optimization criteria.
* GreenScreen v1.2 Benchmark. The product's chemical ingredients are inventoried using the GreenScreen v1.2 Benchmark.
* Declare. The Declare product label must indicate that all ingredients have been disclosed down to 1000 ppm.
Option D is a credit that requires the project to use at least 20 different permanently installed products that have environmental product declarations. The products must be sourced from at least five different manufacturers. The environmental product declarations must conform to ISO 14025, 14040, 14044, and EN
15804 or ISO 21930 and have at least a cradle-to-gate scope2.
NEW QUESTION # 42
Which of these is a method to assess the regional context of a building's design for sustainability?
- A. Performing an energy analysis of the building
- B. Consulting with neighbors
- C. Improving a design threshold
- D. Conducting a site analysis
Answer: D
Explanation:
Explanation
Conducting a site analysis is a method to assess the regional context of a building's design for sustainability. A site analysis involves collecting and evaluating information about the site's location, climate, ecology, history, culture, infrastructure, regulations, and stakeholders. This can help identify the opportunities and constraints for the project, as well as the potential impacts and benefits for the environment and the community. A site analysis can inform the design decisions regarding site selection, site development, water management, energy efficiency, material selection, indoor environmental quality, and innovation12. References: LEED BD+C Reference Guide, Integrative Process, page 281; Site Analysis for Construction
NEW QUESTION # 43
A construction manager is looking for a project management tool that offers energy management strategies, benchmarking software tools for buildings, and product procurement guidelines. Which of the following is recognized by U.S. Green Building Council to assist them?
- A. Green Seal
- B. SCAQMD
- C. SMACNA
- D. ENERGY STAR®
Answer: D
Explanation:
ENERGY STAR® (C) provides tools recognized by the U.S. Green Building Council (USGBC) that assist with energy management strategies, benchmarking, and procurement guidelines. ENERGY STAR offers resources for energy performance benchmarking, operational efficiency, and product standards, which help project managers optimize energy use in line with LEED requirements. Green Seal (A) and SCAQMD (B) focus on materials and emissions, while SMACNA (D) provides guidelines for air quality management.
NEW QUESTION # 44
The goal of the design charrette during Integrative Process Prerequisite, Integrative Project Planning and Design is to:
- A. Optimize the green strategies across all aspects
- B. Choose an appropriate Commissioning Authority (CxA)
- C. Develop the building energy model
- D. Calculate the life cycle cost of the building
Answer: A
Explanation:
Detailed Explanation:
The design charrette is a collaborative, multidisciplinary session aimed at optimizing green strategies throughout the project. This early-phase effort allows stakeholders to explore synergies among building systems, identify sustainability opportunities, and align project goals with LEED requirements. It is a prerequisite for the Integrative Process, fostering holistic design and operational performance improvements.
NEW QUESTION # 45
Based on the results of a six-hour waste stream study, the project team for a retail project plans to provide dedicated areas for four easily recyclable waste streams: cardboard, plastic, metal and paper. The project is open to the public 10 hours a day, six days a week. Which of the following actions should be the project team's top priority in order to demonstrate the minimum requirements to achieve Materials and Resources Prerequisite, Storage and Collection of Recyclables?
- A. Make a waste stream projection for the entire week, based on the six hours of the waste stream study
- B. Make a waste stream projection for the entire year based on the six hours of the waste stream study
- C. Extend the waste stream study to cover a representative time period of a minimum of 24 hours to identify the top five recyclable waste streams
- D. Take appropriate measures for the safe collection, storage and disposal of batteries
Answer: C
Explanation:
According to the LEED v4 Reference Guide for Building Design and Construction, the project team must conduct a waste stream audit to identify the top five recyclable waste streams generated by the building and its occupants. The audit must cover a representative time period of a minimum of 24 hours, and must account for variations in the type and quantity of waste generated by different building uses and operations. The project team must then provide dedicated areas for the collection and storage of these materials for recycling.
The project team must also provide dedicated areas for the collection and storage of batteries, mercury- containing lamps, and electronic waste, or demonstrate that a local program is in place to properly dispose of these materials.
NEW QUESTION # 46
A project team has installed a rainwater harvesting system on site. In which of the following could this system be recognized?
- A. Water Efficiency Credit, Water Metering and Water Efficiency Prerequisite, Indoor Water Use Reduction
- B. Sustainable Sites Credit, Rainwater Management and Water Efficiency Prerequisite, Indoor Water Use Reduction
- C. Sustainable Sites Credit, Rainwater Management and Water Efficiency Credit, Indoor Water Use Reduction
- D. Water Efficiency Credit, Water Metering and Water Efficiency Prerequisite, Outdoor Water Use Reduction
Answer: C
Explanation:
Explanation
A rainwater harvesting system on site could be recognized in the Sustainable Sites Credit, Rainwater Management and the Water Efficiency Credit, Indoor Water Use Reduction. The Sustainable Sites Credit, Rainwater Management rewards projects that reduce runoff volume and improve water quality by replicating the natural hydrology and water balance of the site1. A rainwater harvesting system can help achieve this by capturing and reusing rainwater on site2. The Water Efficiency Credit, Indoor Water Use Reduction rewards projects that reduce indoor water consumption by installing water-efficient fixtures and fittings3. A rainwater harvesting system can help achieve this by providing an alternative source of water for non-potable uses such as toilet flushing and irrigation4.
The other options are not correct. The Water Efficiency Credit, Water Metering does not recognize rainwater harvesting systems, but rather requires projects to install permanent water meters that measure the total potable water use for the building and grounds. The Water Efficiency Prerequisite, Outdoor Water Use Reduction does not recognize rainwater harvesting systems, but rather requires projects to reduce outdoor water consumption by using plant species that are native or adapted to the region and by using irrigation systems that are efficient and properly controlled. The Water Efficiency Prerequisite, Indoor Water Use Reduction does not recognize rainwater harvesting systems, but rather requires projects to reduce indoor water consumption by 20% from the baseline by installing water-efficient fixtures and fittings.
References:
*Rainwater Management, p. 1
*NC-v4 SSc4: Rainwater management, p. 2
*Indoor water use reduction, p. 1
*NC-v4 WEc3: Indoor water use reduction, p. 3
*[Water metering], p. 1
*[Outdoor water use reduction], p. 1
*[Indoor water use reduction], p. 2
NEW QUESTION # 47
When calculating the reverberation time of a room, which of the following pieces of information is least relevant?
- A. Operating sound level of nearest HVAC equipment
- B. Noise reduction coefficient of the ceiling surface
- C. Height and width of room
- D. Sound absorption coefficient of the floor surface
Answer: A
Explanation:
When calculating the reverberation time of a room, the operating sound level of the nearest HVAC equipment is the least relevant piece of information. The reverberation time is the time it takes for the sound to decay by
60 decibels after the source stops emitting sound. The reverberation time depends on the volume and the surface area of the room, as well as the sound absorption coefficients of the materials that cover the surfaces.
The height and width of the room are needed to calculate the volume and the surface area. The noise reduction coefficient of the ceiling surface and the sound absorption coefficient of the floor surface are needed to calculate the total sound absorption of the room. The operating sound level of the nearest HVAC equipment is not relevant for calculating the reverberation time, but it may affect the background noise level and the speech intelligibility in the room.
NEW QUESTION # 48
The intent of the Sustainable Sites Prerequisite, Construction Activity Pollution Prevention is to £
- A. control erosion, waterway sedimentation and noxious odors
- B. control erosion, noxious odors and landfill waste
- C. control erosion, landfill waste and excessive noise
- D. control erosion, waterway sedimentation and airborne dust
Answer: D
Explanation:
The intent of the Sustainable Sites Prerequisite. Construction Activity Pollution Prevention is to reduce pollution from construction activities by controlling soil erosion, waterway sedimentation and airborne dust generation. The LEED v4 Reference Guide for Building Design and Construction states that "construction activities can have significant negative impacts on the environment, both at the project site and beyond.
Erosion and sedimentation can degrade water quality, damage aquatic habitats, and increase flooding risks.
Airborne dust can affect air quality, human health, and visibility. Construction vehicles and equipment can generate noise, traffic, and greenhouse gas emissions"1. The project team must implement an erosion and sedimentation control (ESC) plan that conforms to the 2012 U.S. Environmental Protection Agency Construction General Permit or local equivalent, whichever is more stringent. The ESC plan must cover all construction activity on the project site, including clearing, grading, excavating, and demolition.
References:
* LEED v4 Reference Guide for Building Design and Construction, Sustainable Sites Prerequisite:
Construction Activity Pollution Prevention, page 1151
* Construction activity pollution prevention | U.S. Green Building Council
NEW QUESTION # 49
A rectangular office building is located in an extremely humid climate and is shaded by very large adjacent buildings on all four sides. If the building owner wants to decrease the annual energy cost for operating the building, which of the following would be the best design approach?
- A. Install photovoltaic panels on the sides of the building
- B. Increase outdoor air intake quantities during summer months
- C. Install glazing with a higher solar heat gain factor
- D. Recover waste energy through exhaust air energy recovery systems
Answer: D
Explanation:
Explanation
The best design approach for the office building is D. Recover waste energy through exhaust air energy recovery systems. This is because:
* Installing glazing with a higher solar heat gain factor would increase the cooling load and energy consumption of the building, especially in an extremely humid climate where heat gain is high1.
* Installing photovoltaic panels on the sides of the building would generate electricity from solar radiation, but it would not reduce the cooling load or energy consumption of the building, unless the electricity is used to power a heat pump or other cooling device2.
* Increasing outdoor air intake quantities during summer months would provide more fresh air to dilute the indoor pollutants and improve the indoor air quality, but it would not reduce the cooling load or energy consumption of the building, unless it is combined with a ventilation system that recovers waste energy from the exhaust air stream34.
An exhaust air energy recovery system (ERV) is a type of mechanical ventilation that uses a heat exchanger to transfer heat between two streams of air: one that enters the building and one that exits. The ERV pre-cools and dehumidifies the incoming ventilation air bysending the rejected heat into the exhaust airstream to cool the condenser coil at a lower temperature. This reduces both the cooling load and energy consumption of the building, as well as improving its indoor humidity levels34. An ERV can also provide some fresh outdoor air to meet ASHRAE Standard 62 ventilation rates5.
Therefore, an ERV is a more efficient and effective design approach than glazing, photovoltaic panels, or increased outdoor air intake quantities for reducing the annual energy cost for operating an office building in an extremely humid climate and shaded by very large adjacent buildings on all four sides.
References: 1: LEED v4: Building Design + Construction Guide - U.S. Green Building Council 2: LEED AP BD+C Exam | U.S. Green Building Council 3: Energy Recovery Systems - Nortek Air Solutions 4: Energy Recovery Ventilators - Greenheck 5: Mechanical Ventilation Types: Exhaust, Supply, Balanced & Energy Recovery
NEW QUESTION # 50
An owner has insisted on using a non-native or non-adapted plant species on both the vegetated roof and ground level. What Sustainable Sites credit will this decision impact the most?
- A. Heat Island Reduction
- B. Site Development-Protect or Restore Habita
- C. Site Assessment
- D. Light Pollution Reduction
Answer: B
Explanation:
Using a non-native or non-adapted plant species on both the vegetated roof and ground level will impact the Sustainable Sites credit Site Development-Protect or Restore Habitat the most. This credit requires that at least 20% of the site area (excluding building footprint) or 5% of the site area (including building footprint) must be vegetated with native or adapted plants. Non-native or non-adapted plants do not qualify for this credit and may also have negative impacts on the local ecosystem and biodiversity. The other credits are not directly affected by the choice of plant species, although they may have other requirements related to vegetation, such as shading, reflectance, or lighting.
Reference: LEED v4 BD+C Reference Guide, Sustainable Sites Category, SSc Site Development-Protect or Restore Habitat, page 648.
NEW QUESTION # 51
What is the average flush rate for a dual flush toilet with a high flush rate of 1.6 gpf (6 lpf) and a low flush rate of 1.05 gpf (4 lpf)?
- A. 1.32 gpf (5 lpf)
- B. 1.05 gpf (4 lpf)
- C. 1.23 gpf (4.66 lpf)
- D. 1.19 gpf (4.5 lpf)
Answer: D
NEW QUESTION # 52
An HVAC system consists of an air handler supplying conditioned air (mixture of return air and outdoor air) to an office, corridor, conference room and lobby. For Indoor Environmental Quality Prerequisite, Minimum Indoor Air Quality Performance, the ventilation rate procedure calculations must be based upon what HVAC system configuration?
- A. Single-zone system
- B. Multiple-zone system
- C. Mixed-mode system
- D. 100% outdoor air system
Answer: B
Explanation:
A multiple-zone system is a system that has one or more air handlers supplying conditioned air to more than one zone. A zone is a space or group of spaces within a building with heating and cooling requirements that are sufficiently similar so that desired conditions (e.g., temperature) can be maintained throughout using a single controlling device. The ventilation rate procedure calculations must be based on the multiple-zone system configuration because the HVAC system in the question serves different zones with different ventilation requirements. References: LEED v4 Reference Guide for Building Design and Construction, p.
6881; ASHRAE Standard 62.1-2010, Section 6.2.52
NEW QUESTION # 53
When following the LEED Building Design and Construction Integrative Process credit, which of the following is the approach for the design team to follow?
- A. Assure the aesthetics will match existing neighborhood conditions
- B. Determine if green vehicles will be applicable to the project
- C. Identify synergies among building systems and equipment
- D. Locate a solid waste provider that has sorting capabilities
Answer: C
Explanation:
The Integrative Process credit in LEED BD+C emphasizes a collaborative and holistic approach to design and construction. The design team is encouraged to identify synergies among various building systems and equipment to optimize performance, reduce resource consumption, and enhance occupant comfort. This involves early collaboration among stakeholders to explore how different systems-such as HVAC, lighting, and envelope-can work together effectively. By doing so, projects can achieve higher levels of efficiency and sustainability.
NEW QUESTION # 54
Which of the following statements is correct when defining the project boundary?
- A. The gross floor area of the LEED project should be no less than 1% of the gross land area within the LEED project boundary
- B. The LEED project boundary cannot include non-contiguous land
- C. The land associated with the project supports typical operation
- D. The LEED project boundary cannot include more than one building
Answer: C
Explanation:
The land associated with the project supports typical operations
According to the LEED v4 Reference Guide for Building Design and Construction, the LEED project boundary must include all contiguous land that is associated with the project and supports its typical operations. This includes land altered as a result of construction and features used primarily by the project's occupants, such as hardscape (parking and sidewalks), septic or stormwater treatment equipment, and landscaping1. Therefore, statement C is correct when defining the project boundary. Statement A is incorrect because the LEED project boundary must be contiguous. Statement B is incorrect because the LEED project boundary can include more than one building, as long as they are on the same site and share a common scope of work. Statement D is incorrect because there is no such requirement for the gross floor area of the LEED project to be a certain percentage of the gross land area within the LEED project boundary.
References:
* Reference Guide for Building Design and Construction v4 - Page 282
* NC-v4.1 MPR2: Must use reasonable LEED boundaries | LEEDuser1
NEW QUESTION # 55
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