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  1. Home
  2. USGBC Certification
  3. LEED-AP-BD-C Exam
  4. USGBC.LEED-AP-BD-C.v2024-05-18.q93 Dumps
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Question 51

A new Science Education Center is pursuing LEED certification. Which of the following strategies could be submitted to earn an Innovation in Design credit?

Correct Answer: B
Explanation
This strategy could be submitted to earn an Innovation in Design credit because it addresses a green building topic not covered by any existing LEED credit. The air-purifying facade material is a novel and sustainable feature that can reduce the environmental impact of the building by removing pollutants from the air and improving the outdoor air quality1.
References: = LEED v4: Building Design + Construction Guide, Air-purifying facade material.
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Question 52

The project team wants to modify the design of an office building copy room to minimize the risk of airborne contamination to the surrounding space. The design includes a separate exhaust, but due to design constraints the partition walls of the room cannot run deck-to-deck. What can the team do to achieve Indoor Environmental Quality Credit, Enhanced Indoor Air Quality Strategies?

Correct Answer: B
Explanation
The Indoor Environmental Quality Credit, Enhanced Indoor Air Quality Strategies aims to establish better quality indoor air for the building occupants that promotes their comfort and well-being1. This credit requires the project team to implement several strategies to reduce the exposure of occupants and HVAC systems to environmental tobacco smoke, airborne contaminants, and chemicals1. One of the strategies is to design and construct all interior partitions to full height (deck-to-deck) or provide a hard-lid ceiling for spaces where hazardous gases or chemicals may be present or used2. This strategy helps prevent the migration of contaminants from one space to another through the plenum3. A copy room is an example of such a space, as it may contain printers, copiers, toners, and solvents that can emit volatile organic compounds (VOCs) and particulate matter (PM) into the air4. Therefore, the project team can achieve Indoor Environmental Quality Credit, Enhanced Indoor Air Quality Strategies by providing a hard-lid ceiling for the copy room.
References:
* Enhanced Indoor Air Quality Strategies
* Enhanced Indoor Air Quality Strategies - Canada Green Building Council
* [LEED Reference Guide for Building Design and Construction v4], page 631
* Copy Rooms: A Source of Indoor Air Pollution
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Question 53

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?

Correct Answer: D
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
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Question 54

For a task chair purchased for a healthcare facility, which portion of the product contributes toward Materials and Resources Credit, Furniture and Medical Furnishings?

Correct Answer: C
Explanation
The metal base, 20% of product by weight, which do not contain heavy metals and is not plated with hexavalent chromium, contributes toward Materials and Resources Credit, Furniture and Medical Furnishings.
This is because it meets the criteria of Option 1: Minimal Chemical Content, which requires that all components that constitute at least 5%, by weight, of a furniture or medical furnishing assembly must contain less than 100 ppm of at least four of the five chemical groups listed in the option. The other portions of the product either do not meet the 5% weight threshold (wheels), or contain chemicals that are restricted by Option 1 (fabric, armrests).References: LEED v4 BD+C Reference Guide, Materials and Resources Category, MRc Furniture and Medical Furnishings, Option 1. Minimal Chemical Content, page 711.
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Question 55

Which would contribute to compliance with Sustainable Sites Credit, Open Space?

Correct Answer: D
Explanation
According to the LEED v4: Building Design + Construction Guide, the Sustainable Sites Credit, Open Space requires the project to provide outdoor space greater than or equal to 30% of the total site area (including building footprint). At least 25% of that outdoor space must be vegetated, have overhead vegetated canopy, or be a water body. Option A does not qualify as outdoor space, Option B is not vegetated or a water body, and Option C only applies to projects with a FAR of less than 1.0. Option D meets the requirements for both outdoor space and vegetation, and also contributes to the protection or restoration of habitat1. References:
LEED v4: Building Design + Construction Guide, Sustainable Sites Credit, Open Space, Requirements1
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