LEED-AP-BD-C Exam Questions and Answers

QUESTION: 46

Which of these is a method to assess the regional context of a building's design for sustainability?

Conducting a site analysis
Consulting with neighbors
Improving a design threshold
Performing an energy analysis of the building

Answer(s): A

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 innovation.

Reference:

LEED BD+C Reference Guide, Integrative Process, page 281; Site Analysis for Construction

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QUESTION: 47

To achieve the Sustainable Sites Credit, Light Pollution Reduction, Option 1. BUG Rating Method, projects must demonstrate

all luminaires have full cutoff fixtures
all luminaires have a minimum color temperature of 3500 K
all luminaires meet acceptable fixture ratings for the project's Model Lighting Ordnance (MLO)

lighting zone
all luminaires are mounted at least three mounting heights from the lighting boundary

Answer(s): C

Explanation:

To achieve the Sustainable Sites Credit, Light Pollution Reduction, Option 1. BUG Rating Method, projects must demonstrate that all luminaires meet acceptable fixture ratings for the project's Model Lighting Ordnance (MLO) lighting zone. The MLO lighting zone is determined by the site-specific characteristics and the definitions provided in the IES/IDA MLO User Guide. The fixture ratings are based on the backlight-uplight-glare (BUG) system, which measures the amount of light emitted in different directions by a luminaire, as defined in IES TM-15-11, Addendum A2. The maximum allowable ratings for each lighting zone are given in Table 1 of the credit language.

Reference:

IES/IDA MLO User Guide; IES TM-15-11, Addendum A; Light pollution reduction

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QUESTION: 48

A tenant of a new office building will require 100 workstations per floor. Each floor will have two bathroom facilities and one conference room. How many lighting control devices with at least three lighting levels per floor are required to comply with Indoor Environmental Quality Credit, Interior Lighting, Option 1. Lighting Control?

91 lighting control devices
93 lighting control devices
100 lighting control devices
103 lighting control devices

Answer(s): B

Explanation:

To comply with Indoor Environmental Quality Credit, Interior Lighting, Option 1. Lighting Control, the tenant of a new office building will require 93 lighting control devices with at least three lighting levels per floor. This is because the credit requires that at least 90% of individual occupant spaces have lighting controls that enable occupants to adjust the lighting to suit their individual tasks and preferences. The credit also requires that all shared multioccupant spaces have lighting controls that enable adjustments that meet the needs of the group. According to the LEED BD+C Reference Guide, an individual occupant space is defined as an enclosed space or an open space that is occupied by one person and is at least 50 square feet (4.6 square meters) in area. A shared multioccupant space is defined as an enclosed or open space that is occupied by more than one person and is at least 100 square feet (9.3 square meters) in area. Based on the given information, each workstation can be considered as an individual occupant space, and each bathroom facility and conference room can be considered as a shared multioccupant space. Therefore, the number of lighting control devices per floor can be calculated as follows:
For the 100 workstations, 90% of them need lighting controls, which is 90 workstations. Each workstation needs one lighting control device, so the total number of lighting control devices for the workstations is 90.
For the two bathroom facilities, each facility needs one lighting control device, so the total number of lighting control devices for the bathroom facilities is 2. For the one conference room, one lighting control device is needed, so the total number of lighting control devices for the conference room is 1.
The total number of lighting control devices per floor is then 90 + 2 + 1 = 93.

Reference:

Interior lighting

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QUESTION: 49

Which of the following standards needs to be followed to comply with Indoor Environmental Quality Credit, Thermal Comfort?

ASHRAE 55-2010
ASHRAE 62.1-2010
ASHRAE 90.1-2010
ASHRAE 189.1-2010

Answer(s): A

Explanation:

To comply with Indoor Environmental Quality Credit, Thermal Comfort, the standard that needs to be followed is ASHRAE 55-2010, Thermal Environmental Conditions for Human Occupancy, with errata or a local equivalent. This standard specifies the combinations of indoor thermal environmental factors and personal factors that will produce thermal environmental conditions acceptable to a majority of the occupants within the space. The standard also provides methods for measuring and evaluating thermal comfort, as well as guidance for design, operation, and maintenance of thermal comfort systems.

Reference:

Thermal comfort; ASHRAE 55-2010

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QUESTION: 50

Which of the following documents contains the design team's interpretation of the Owner's Project Requirements?

Basis of Design (BOD)
Simple Box Energy Model Analysis
System's manual
Integrated Project Delivery report

Answer(s): A

Explanation:

The Basis of Design (BOD) is the document that contains the design team's interpretation of the Owner's Project Requirements (OPR). The BOD describes the proposed systems and how they will meet the OPR, as well as the assumptions and criteria used for the design. The BOD is a key document for the Integrative Process credit and the Enhanced Commissioning credit in LEED

BD+C12.

Reference:

LEED BD+C Reference Guide, Integrative Process, page 301; LEED BD+C Reference Guide, Enhanced Commissioning, page 681

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US Green Building Council LEED-AP-BD-C Exam (page: 10) US Green Building Council LEED AP Building Design + Construction Updated on: 15-Feb-2026

QUESTION: 46

Explanation:

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QUESTION: 47

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QUESTION: 48

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QUESTION: 49

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QUESTION: 50

Explanation:

Reference:

US Green Building Council LEED-AP-BD-C Exam (page: 10)
US Green Building Council LEED AP Building Design + Construction
Updated on: 15-Feb-2026