Buildings account for what percentage of total energy use?
Correct Answer: B
Buildings account for 40% of total energy use in the U.S., according to the U.S.Environmental Protection Agency1.This is consistent with the global estimate by the International Energy Agency, which states that buildings and construction sector accounted for 36% of final energy use in 20182. References: =LEED AP O+M Exam Guide, page 305;LEED v4.1 O+M Reference Guide, page 97. Buildings are one of the primary consumers of energy worldwide, and they account for a significant percentage of total energy use. The correct percentage is 40%, which encompasses energy used for heating, cooling, lighting, and operating buildings. This figure reflects the extensive impact that building design, construction, and operations have on energy consumption and the potential for energy savings in this sector. References: * The figure that buildings account for 40% of total energy use is a commonly cited statistic in the field of sustainability and is mentioned in LEED training materials and documentation. It is a crucial factor that drives the Energy and Atmosphere (EA) category within the LEED rating systems, pushing for strategies that reduce energy consumption and improve building energy performance.
Question 72
Which of the following strategies reduces the impact of materials used in building operation and maintenance on indoor air quality?
Correct Answer: D
Question 73
Which of the following is a low impact development (LID) technique for rainwater management?
Correct Answer: B
Low Impact Development (LID) practices manage stormwater by using natural or man-made systems to filter and recharge stormwater into the ground12. A rain garden is an example of a LID technique for rainwater management3. It is a planted depression that allows rainwater runoff from impervious urban areas, like roofs, driveways, walkways, parking lots, and compacted lawn areas, to be absorbed. This reduces rain runoff by allowing stormwater to soak into the ground (as opposed to flowing into storm drains and surface waters which causes erosion, water pollution, flooding, and diminished groundwater). References: * Low Impact Development (LID) Practices: A Review on Recent Developments, Challenges and Prospects | Water, Air, & Soil Pollution * Enhancing stormwater management with low impact development (LID): a review of the rain barrel, bioretention, and permeable pavement applicability in Indonesia | Water Science & Technology | IWA Publishing * Managing Rainwater with Low-Impact Development (LID) for LEED Credits
Question 74
Which of the following best meets requirements of Sustainable Sites Credit, Site Development - Protect or Restore Habitat?
Correct Answer: C
This answer meets the requirements of Option 2 of the credit, which allows projects to provide financial support for the protection of habitat within the same EPA Level III Ecoregion. The donation must be at least $0.40 per square foot of the project site area. References: * LEED AP O+M Exam Guide, page 63 * Site Development - Protect or Restore Habitat, USGBC * Site Development - Protect or Restore Habitat, LEEDuser
Question 75
Which of the following plumbing fixtures apply to the calculations in Water Efficiency Prerequisite Indoor Water Use Reduction?
Correct Answer: A
The Water Efficiency Prerequisite for Indoor Water Use Reduction includes calculations for toilets, urinals, and pre-rinse spray valves. These fixtures are key contributors to water consumption within buildings and are therefore critical to achieving water efficiency. References: The LEED v4 Indoor Water Use Reduction Calculator and the LEED v4.1 O+M reference materials provide guidance on the fixtures included in the water use reduction calculations1234. For the calculations in the Water Efficiency Prerequisite Indoor Water Use Reduction in LEED, the plumbing fixtures that apply include toilets, urinals, and pre-rinse spray valves. These fixtures are critical components in reducing indoor water consumption and are therefore considered in the calculations for water efficiency and conservation.References:LEED v5 O+M: Existing Buildings beta version
