Water Efficiency Practice Questions
with 100% accurate answers
An office project in an arid climate is going to include a rainwater-collection system to offset
indoor potable water use for toilet flushing. The office will have WaterSense fixture. The
occupancy will be 100 FTEs and 20 average daily visitors. Which item does the project need to
include with the narrative for WE Credit Indoor Water Use Reduction?
A. A maintenance schedule of the system
B. A plan to deal with salinity
C. Manufacturer cutsheets for the rainwater system
D. A plumbing system design drawing - ANSWER-D. A plumbing system design drawing
When using non-potable water, the plumbing system design drawings must highlight the non-
potable water system. The supply and demand calculations must show the supply of non-
potable water is enough to meet what the project needs.
Which system is not included in WE Credit Water Metering?
A. Domestic hot water
B. Cooling towers
C. Dishwashers
D. Reclaimed water - ANSWER-B. Cooling towers
Cooling towers are addressed in WE Prerequisite Indoor Water Use Reduction.
, Project teams pursuing points under WE Credit Indoor Water Use Reduction must show which
requirements have been met?
A. The project fixtures in aggregate meet the requirements
B. Every individual fixture meets the credit requirements
C. 20% of the fixtures are WaterSense labeled (or equivalent)
D. Every fixture is WaterSense labeled (or equivalent) - ANSWER-A. The project fixtures in
aggregate meet the requirements
Teams have 2 compliance paths available for the prerequisite. Compliance path one is
prescriptive achievement. This means all installed fixtures are at or below WaterSense max
levels. Teams using this compliance path provides product cutsheets and fixture schedules and
don't need to perform any calculations.
This path is only available for the prerequisite, and teams pursuing the credit must select
compliance path 2, usage-based calculation. This method requires teams to perform
calculations to show that the fixtures comply with the requirements in aggregate. Under this
compliance path, every individual fixture doesn't need to meet the requirements, but the
project fixtures in aggregate do.
A project team trying to achieve LEED BD+C: Multifamily Midrise for a new residential project
would need to do which of the following?
A. Specify high-efficiency appliances
B. Select bathroom sinks with a maximum flow rate of 2.2 gpm (8.3 lpm)
C. Install dual-flush toilets
D. Reduce aggregate water consumption by 10% - ANSWER-A. Specify high-efficiency appliances
ENERGY STAR or equivalent new appliances and equipment must be installed for WE
Prerequisite Indoor Water Use Reduction.
A building has a restaurant on the first floor and office space and third floors. When using the
indoor water use calculator, how should the information be calculated?
with 100% accurate answers
An office project in an arid climate is going to include a rainwater-collection system to offset
indoor potable water use for toilet flushing. The office will have WaterSense fixture. The
occupancy will be 100 FTEs and 20 average daily visitors. Which item does the project need to
include with the narrative for WE Credit Indoor Water Use Reduction?
A. A maintenance schedule of the system
B. A plan to deal with salinity
C. Manufacturer cutsheets for the rainwater system
D. A plumbing system design drawing - ANSWER-D. A plumbing system design drawing
When using non-potable water, the plumbing system design drawings must highlight the non-
potable water system. The supply and demand calculations must show the supply of non-
potable water is enough to meet what the project needs.
Which system is not included in WE Credit Water Metering?
A. Domestic hot water
B. Cooling towers
C. Dishwashers
D. Reclaimed water - ANSWER-B. Cooling towers
Cooling towers are addressed in WE Prerequisite Indoor Water Use Reduction.
, Project teams pursuing points under WE Credit Indoor Water Use Reduction must show which
requirements have been met?
A. The project fixtures in aggregate meet the requirements
B. Every individual fixture meets the credit requirements
C. 20% of the fixtures are WaterSense labeled (or equivalent)
D. Every fixture is WaterSense labeled (or equivalent) - ANSWER-A. The project fixtures in
aggregate meet the requirements
Teams have 2 compliance paths available for the prerequisite. Compliance path one is
prescriptive achievement. This means all installed fixtures are at or below WaterSense max
levels. Teams using this compliance path provides product cutsheets and fixture schedules and
don't need to perform any calculations.
This path is only available for the prerequisite, and teams pursuing the credit must select
compliance path 2, usage-based calculation. This method requires teams to perform
calculations to show that the fixtures comply with the requirements in aggregate. Under this
compliance path, every individual fixture doesn't need to meet the requirements, but the
project fixtures in aggregate do.
A project team trying to achieve LEED BD+C: Multifamily Midrise for a new residential project
would need to do which of the following?
A. Specify high-efficiency appliances
B. Select bathroom sinks with a maximum flow rate of 2.2 gpm (8.3 lpm)
C. Install dual-flush toilets
D. Reduce aggregate water consumption by 10% - ANSWER-A. Specify high-efficiency appliances
ENERGY STAR or equivalent new appliances and equipment must be installed for WE
Prerequisite Indoor Water Use Reduction.
A building has a restaurant on the first floor and office space and third floors. When using the
indoor water use calculator, how should the information be calculated?
