Question 1

A mechanical engineer needs to identify spaces that are considered densely occupied according to LEED in order to document

Accepted Answer

D

Explanation: In LEED, densely occupied spaces are relevant for assessing indoor environmental quality strategies, especially concerning carbon dioxide monitoring. High-density occupancy can lead to increased levels of CO2, which may affect occupants' comfort and health. Identifying densely occupied spaces is a crucial step in designing appropriate ventilation and air quality monitoring systems, and the carbon dioxide monitoring strategy aims to maintain the CO2 levels within acceptable limits in such spaces. Reference: Reference to 'densely occupied space' within the context of Enhanced Indoor Air Quality Strategies and the option for Carbon Dioxide Monitoring, highlighting the connection between occupancy density and air quality .

Question 2

A renovation project includes both a new kitchen sink and shower and an existing lavatory and water
closet within the LEED project boundary. How would the project perform the Water Efficiency Credit,
Indoor Water Use Reduction calculations?

Accepted Answer

D

Explanation: For the Water Efficiency Credit, Indoor Water Use Reduction calculations, all fixtures within the LEED project boundary must be included, both new and existing. The baseline for the existing fixtures should be the same as the baseline flush/flow rates used for the new fixtures. This approach ensures a consistent and fair comparison between the current and proposed water use. Reference: LEED v4 ID+C Reference Guide1 Indoor Water Use Reduction Calculator instructions2 LEED v4 water efficiency credit requirements3.

Question 3

A project team wants to achieve Materials and Resources Credit, Building Product Disclosure and
Optimization - Material Ingredients. By what means can a product demonstrate their material
ingredient optimization?

Accepted Answer

C

Explanation: To achieve the Materials and Resources Credit for Building Product Disclosure and Optimization - Material Ingredients, a product can demonstrate material ingredient optimization through the GreenScreen v1.2 Benchmark. This method involves a screening process to assess the hazards of chemicals used in products and aims to reduce the use of chemicals that are harmful to human health and the environment1. Reference: LEED v4.1 reference guide for Interior Design and Construction, specifically the section on Building Product Disclosure and Optimization - Material Ingredients2. “ULTIMATE GUIDE TO LEED V4 & V4.1 MRc4 Option 2” by Green Badger, which details the requirements and strategies for achieving Material Ingredient Optimization in LEED v4.11.

Question 4

To satisfy the Increased Ventilation strategy in the Indoor Environmental Quality Credit, Enhanced
Indoor Air Quality Strategies, the breathing zone rates of outdoor air ventilation to all occupied
spaces must be increased above the minimum rates required in ASHRAE 62.1-2010 by at least what
percentage?

Accepted Answer

C

Explanation: To meet the Increased Ventilation strategy under the Enhanced Indoor Air Quality Strategies credit, the breathing zone outdoor air ventilation rates must be increased by at least 30% above the minimum rates required by ASHRAE 62.1-2010. This increase is intended to improve indoor air quality and promote a healthier indoor environment. Reference: The LEED v4 reference guide for Interior Design and Construction includes this requirement as part of the strategies to enhance indoor air quality12.

Question 5

A tenant implements the following strategies to reduce the amount of water used. Which strategy is
applicable to the Water Efficiency Credit, Indoor Water Use Reduction for LEED Interior Design and
Construction: Commercial Interiors?

Accepted Answer

A

Explanation: The composting toilet is applicable to the Water Efficiency Credit, Indoor Water Use Reduction for LEED Interior Design and Construction: Commercial Interiors because it significantly reduces the amount of water used for conventional flushing toilets. By composting human waste, this system eliminates the need for water in the disposal process, contributing to indoor water use reduction. Reference: The LEED v4 Reference Guide for Interior Design and Construction includes the composting toilet as a strategy for reducing water use within the indoor environment1. The LEED v4 Indoor Water Use Reduction Calculator also provides a framework for calculating water savings, where the use of composting toilets can contribute to achieving the prerequisite and credit requirements for water use reduction1.

Question 6

A project has performed an energy model which has resulted in the following energy end use consumption: https://kxbjsyuhceggsyvxdkof.supabase.co/storage/v1/object/public/file-images/US_Green_Building_Council_LEED-AP-ID-C/page_15_img_1.jpg To meet the requirements for Energy and Atmosphere Credit, Advanced Energy Metering, Option 2. Advanced Metering, energy meters must be installed for energy end uses in

Accepted Answer

C

Explanation: The LEED v4 criteria for the Energy and Atmosphere Credit, Advanced Energy Metering, Option 2 requires advanced energy metering for all whole-building energy sources as well as for any individual energy end uses that account for 10% or more of the total annual consumption of the building. From the provided energy end-use consumption data, it is clear that space cooling, interior fans, and receptacles each represent more than 10% of the total energy consumption. Additionally, interior lighting and space heating together also account for a significant portion of the energy consumption. Hence, to meet the credit requirements, advanced metering must be installed for all these categories, aligning with option C. Reference: Guidance from the LEED study guide explaining the requirements for advanced energy metering under the Energy and Atmosphere Credit, particularly for end uses that comprise 10% or more of total consumption .

Question 7

What should a team focus on first to significantly improve energy performance or achieve the lowest possible operation cost?

Accepted Answer

C

Explanation: Implementing passive design strategies should be the primary focus as they utilize the climate to maintain a comfortable temperature range in the building, reducing the reliance on mechanical heating and cooling systems. This approach can significantly improve energy performance and reduce operational costs by maximizing natural heating, cooling, and daylighting before considering mechanical or electrical systems. Reference: The LEED v4 Reference Guide for Interior Design and Construction emphasizes the importance of passive design strategies within the integrative process for optimizing energy performance1. Additionally, the LEED v4 energy update reflects a focus on increased energy efficiency and greenhouse gas emissions reductions, which can be effectively addressed through passive design23.

Question 8

Regarding the Materials and Resources Credit, Building Product Disclosure and Optimization -
Sourcing of Raw Materials, Option 2. Leadership Extraction Practices, in addition to materials costs,
what information is needed to determine the total cost of each product?

Accepted Answer

D

Explanation: For the Materials and Resources Credit, Building Product Disclosure and Optimization - Sourcing of Raw Materials, Option 2, Leadership Extraction Practices, the total cost determination of each product includes not only the materials costs but also the transportation costs and installation labor. This is because these factors contribute to the overall expense of the product from its origin to its final installed state in the project1. Reference: LEED v4 for Interior Design and Construction Reference Guide2. LEED Credit Library - Materials and Resources3. LEEDuser’s discussion on Building Product Disclosure and Optimization4.

Question 9

According to the Integrative Process Credit, Integrative Process the discovery phase of site selection for an existing building should identify

Accepted Answer

C

Explanation: The discovery phase of the Integrative Process Credit involves a comprehensive analysis of various aspects of site selection for an existing building. This phase is crucial for identifying opportunities and challenges that can influence the project’s sustainability goals. Among the options provided, transportation options are a key factor that can be affected by early planning. Identifying transportation options helps in understanding the accessibility of the site and its impact on the project’s sustainability, particularly in terms of reducing the carbon footprint associated with commuting1. Reference: LEED v4: Interior Design + Construction Guide1. Understanding Integrative Design in LEEDv42.

Question 10

If the client has purchased green power that is not Green-e certified, then the project team should

Accepted Answer

B

Explanation: When green power is not Green-e certified, the project team can still pursue the Energy and Atmosphere Credit for Green Power by demonstrating that the purchased green power meets equivalent standards. This involves providing documentation that verifies the green power’s quality and production process align with the criteria set by Green-e certification. Reference: The LEED v4 Reference Guide for Interior Design and Construction includes provisions for using green power that is not Green-e certified, as long as the project team can substantiate its equivalence. This can be done through third-party verification and ensuring that the energy source meets the requirements for renewable resources detailed in the current version of the Green-e standard123.

Question 11

For an Interior Design and Construction project to earn Innovation Credit, LEED Accredited Professional, who must submit their credentials as a principal participant of the project team?

Accepted Answer

D

Explanation: To earn the Innovation Credit, LEED Accredited Professional for an Interior Design and Construction project, a LEED AP with ID+C specialty must submit their credentials as a principal participant of the project team. This is because the ID+C specialty credential signifies technical knowledge specific to the design and construction of environmentally conscious commercial interiors, which is essential for the project’s certification process1. Reference: LEED v4.1 ID+C updated guidance on the LEED Accredited Professional Innovation point, which allows for the LEED AP ID+C credential to count towards this point1. The LEED credit library and the LEED v4: Interior Design + Construction Guide, which provide detailed information on the requirements for earning Innovation credits23.

Question 12

A project incorporates steel beams as an interior architectural feature, but no recycled content
information is available. When calculating the recycled content of the beams, which default content
amount should be used?

Accepted Answer

D

Explanation: According to LEED v4 requirements, all newly installed fittings and fixtures that are eligible for the WaterSense label must have a WaterSense label (or a local equivalent for projects outside the U.S.). This ensures that the fixtures meet both water-efficient and high-performance testing standards. Among the options provided, a private lavatory faucet is a fitting that would be newly installed and is eligible for the WaterSense label, thus requiring it12. Reference: LEED v4 Water Efficiency Prerequisite 2 (WEp2) mandates that all newly installed fittings and fixtures eligible for the WaterSense label must have it1. The WaterSense label is a mark of water efficiency and performance, which aligns with the goals of LEED certification2.

Question 13

In the pre-design phase, a plumbing engineer identified that the low-flow fixtures which met the
Owner's requirements could achieve total reductions in indoor water usage of 39%. Which strategies
should be assessed to meet the Owner's Project Requirements goals of 45% reduction?

Accepted Answer

D

Explanation: To achieve the Owner’s Project Requirements of a 45% reduction in indoor water usage, the strategy should focus on reducing process water demand. This can be done by evaluating the efficiency of kitchen and laundry equipment and optimizing their operational schedules to minimize water use. This approach targets water-intensive processes within the building, offering a significant opportunity for water savings. Reference: The LEED v4 Reference Guide for Interior Design and Construction outlines strategies for reducing water use, which includes optimizing process water use as a means to achieve water efficiency within a building12.

Question 14

A proposed LEED project will be located within the boundary of a development that has been
successfully certified at the Silver level under LEED for Neighborhood Development. The project will
earn 10 points from the Location and Transportation Credit, LEED for Neighborhood Development
Location. How many additional credit points are available to the project team under the Location and
Transportation category?

Accepted Answer

C

Explanation: A LEED project located within a LEED for Neighborhood Development (LEED-ND) certified boundary is eligible for points under the Location and Transportation Credit, LEED for Neighborhood Development Location. If the development is certified at the Silver level, the project automatically earns 10 points. In addition to these points, the project can earn up to 8 more points in the Location and Transportation category for implementing strategies such as reducing parking footprint, promoting alternative transportation, and connecting with amenities1. Reference: LEED v4.1 Reference Guide for Building Design and Construction, which includes details on the Location and Transportation category1. LEED v4.1 credit library, which outlines the potential points available under various credits within the Location and Transportation category2.

Question 15

Occupancy numbers must be reported consistently across multiple LEED credits. Which of the following prerequisites/credits require using the Occupancy numbers?

Accepted Answer

B

Explanation: Occupancy numbers are a critical factor in multiple LEED credits as they directly influence calculations related to the usage and efficiency of resources and amenities. For the Location and Transportation Credit, Access to Quality Transit, knowing the occupancy numbers helps in understanding the potential demand for public transit facilities. Similarly, for the Water Efficiency Credit, Indoor Water Use Reduction, occupancy numbers are essential for accurately calculating water use and setting reduction targets. Lastly, the Indoor Environmental Quality Credit, Quality Views, considers the occupants' access to natural vistas, which is influenced by the number of people using the space. Consistent reporting of occupancy numbers ensures that the assessments for these credits are based on accurate and comparable data, reflecting the true usage patterns and needs of the building. Reference: LEED v4 for Building Design and Construction Reference Guide, particularly the sections on Location and Transportation Credit, Access to Quality Transit; Water Efficiency Credit, Indoor Water Use Reduction; and Indoor Environmental Quality Credit, Quality Views

Free US Green Building Council LEED AP ID+C Actual Exam Questions