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)?
Correct Answer: B
The average flush rate for a dual flush toilet is calculated by weighting the high and low flush rates according to the frequency of use. According to the LEED Reference Guide for Building Design and Construction1, the frequency of use for male and female occupants is assumed to be as follows: * Male full flush: 1 time per day * Female full flush: 1 time per day * Male low flush: 2 times per day * Female low flush: 2 times per day Therefore, 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) is: 6(1×1.6)+(1×1.6)+(2×1.05)+(2×1.05)=1.19 gpf(4.5 lpf)
Question 107
What LEED Building Design and Construction rating system mandates a preliminary LEED meeting with the principal members of the project team to create a LEED action plan that includes the anticipated certification tier, targeted credits and parties responsible for each credit?
Correct Answer: C
Data centers is the only LEED BD+C rating system that mandates a preliminary LEED meeting with the principal members of the project team to create a LEED action plan that includes the anticipated certification tier, targeted credits and parties responsible for each credit. This is because data centers have unique design and operational characteristics that require a more integrative and customized approach to achieve LEED certification. The preliminary LEED meeting is intended to facilitate early goal setting, alignment, and communication among the project team members12. Reference: LEED BD+C Reference Guide, Data Centers, page 91; LEED v4.1 BD+C: Data Centers
Question 108
A new school with a 20 car parking lot has set aside four preferred parking spaces for green vehicles. What else must the project team provide to achieve Location and Transportation Credit, Green Vehicles?
Correct Answer: D
The correct answer is D, provide qualifying electrical vehicle supply equipment in 2% of all parking spaces. According to the LEED v4 Reference Guide for Building Design and Construction, the Location and Transportation Credit, Green Vehicles, requires that projects provide preferred parking for green vehicles for 5% of the total vehicle parking capacity of the site. Green vehicles are defined as vehicles that achieve a minimum green score of 40 on the American Council for an Energy Efficient Economy (ACEEE) annual vehicle rating guide1 In addition, projects must provide one of the following: Install alternative-fuel fueling stations for 3% of the total vehicle parking capacity of the site. Alternative fuels are defined by the U.S. Energy Policy Act of 1992 and include biodiesel, electricity, ethanol, hydrogen, natural gas, and propane. Install electrical vehicle supply equipment (EVSE) for 2% of the total vehicle parking capacity of the site. EVSE must be Level 2 or higher as defined by SAE International's J1772 standard. Provide a discounted parking rate of at least 20% for green vehicles. The discounted rate must be available to all customers (not limited by time of day or user groups), publicly posted at the entrance of the parking area, and included in all marketing materials for the parking facility1 In this case, the project team has provided preferred parking for green vehicles for 20% of the total vehicle parking capacity of the site (4 out of 20 spaces), which exceeds the minimum requirement of 5%. However, they still need to provide one of the additional options listed above to achieve the credit. The most feasible option for a school project with a small parking lot would be to install EVSE for 2% of all parking spaces, which would be equivalent to one space. Therefore, answer D is correct. The other answers are incorrect because they do not meet the credit requirements. Answer A is incorrect because providing preferred parking alone is not sufficient to achieve the credit; one of the additional options must also be provided. Answer B is incorrect because providing bike racks is not relevant to this credit, which focuses on green vehicles; bike racks are part of another credit, Location and Transportation Credit, Bicycle Facilities. Answer C is incorrect because providing an additional parking space for a low-emitting and fuel-efficient vehicle would not increase the percentage of preferred parking above 20%, which is already more than enough; moreover, low-emitting and fuel-efficient vehicles are defined differently from green vehicles in LEED v4 and have their own credit, Location and Transportation Credit, Reduced Parking Footprint1 Reference: 1: LEED v4 Reference Guide for Building Design and Construction, Location and Transportation Credit: Green Vehicles, page 467.
Question 109
A mixed-use development is located 1/2 mi. (0.80 km) from a future commuter rail line station. Which of the following pieces of information is needed when determining whether the rail line station can contribute to Location and Transportation Credit, Access to Quality Transit?
Correct Answer: B
The rail line station construction completion date is needed when determining whether the rail line station can contribute to Location and Transportation Credit, Access to Quality Transit. This is because the credit requires that the transit service must be existing or planned to be in operation within two years of the project's occupancy1. Discounted rail pass availability, connections to transfer routes, and passenger capacity are not relevant for this credit1. References: *Access to quality transit, p. 1
Question 110
Which individual occupant lighting control meets the requirements of Indoor Environmental Quality Credit, Interior Lighting?
Correct Answer: B
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
