Water Efficiency

Which of the following is NOT graywater?

Question 1 options:

	Water from kitchen sinks
	Water from toilet
	Harvest rainwater
	Water from outdoor area drains
	None of the above
	A, B, C, D

A,B,C,D

Which of the following is NOT blackwater? (Choose 2)

Question 2 options:

	Water from kitchen sinks
	Water from toilets
	Harvest rainwater
	Water from floor drains
	Rainwater that has come into contact with animal waste.

Harvest rainwater

Water from floor drains

Which of the following is NOT true? (Choose 2)

Question 3 options:

	Water from kitchen sinks can be reused for landscape irrigation and flushing toilets.
	Water from kitchen sinks cannot be reused for landscape irrigation and flushing toilets.
	Reclaimed water requires special piping with a different color.
	Reclaimed water cannot reduce potable water use.

Water from kitchen sinks can be reused for landscape irrigation and flushing toilets.

Reclaimed water cannot reduce potable water use

Which of the following sets the baseline for water use? (Choose 2)

Question 4 options:

	Energy Policy Act (EPAct) of 1992
	Uniform Plumbing Code (UPC)
	WaterSense Standards
	International Plumbing Code (IPC)

Uniform Plumbing Code (UPC)

International Plumbing Code (IPC)

Which of the following sets the minimum standard of water use reduction?

Question 5 options:

	Energy Policy Act (EPAct) of 1992
	Uniform Plumbing Codes (UPC)
	WaterSense standards
	International Plumbing Code (IPC)

Energy Policy Act (EPAct) of 1992

Which of the following is the best statement regarding water savings for LEED credits?

Question 6 options:

	Water savings for LEED credits are per building codes.
	Water savings for LEED credits are per green building codes.
	Water savings for LEED credits are per federal regulations.
	Water savings for LEED credits are based on the percentage of water savings achieved by each design case as compared with a baseline building.

Water savings for LEED credits are based on the percentage of water saving achieved by each design case as compared with a baseline building

Which of the following is graywater?

Question 7 options:

	Water from bathroom sinks and kitchen sinks.
	Water from bathtubs.
	Water from toilets.
	Rainwater collected in cisterns.
	Stormwater that has not come in contact with human waste.

Water from bathtubs

Which of the following water saving items can be used for outdoor, indoor, and processed water? (Choose 2)

Question 8 options:

	Water efficient fixtures
	Sub-meters
	Native plants
	Water saving education programs

Sub-meters

Water saving education programs

Which of the following is graywater?

Question 9 options:

	Stormwater
	Laundry water
	Dishwasher water
	Water in retention ponds

Laundry water

If a building's wasterwater overflows, which of the following can come into contact with potable water? (Choose 2)

Question 10 options:

	CO
	Toxic metal
	Grease
	Halons

Toxic metal

Which of the following needs to be implemented for water efficiency?

Question 11 options:

	A baseline of water use
	HET
	waterless urinals
	Xeriscape

a baseline of water use

Rainwater is:

Question 12 options:

	potable water.
	non-potable water.
	blackwater.
	raw water.
	graywater.

non-potable water

Which of the following is true regarding used water from a bathroom sink?

Question 13 options:

	The water cannot be reused.
	The water is graywater and can always be reused.
	The water may be reused if acceptable per local codes.
	None of the above.

The water may be reused if acceptable per local codes

Which of the following should be used to wash dishes?

Question 14 options:

	Portable water.
	Stormwater.
	Water from bio-retention ponds.
	Potable water.
	Graywater.
	Blackwater.

potable water

On average, what percentage of potable water is used for landscape irrigation in the US?

Question 15 options:

	20%
	30%
	40%
	50%

30%

Which of the following are types of process water uses? (Choose 3)

Question 16 options:

	Cooling towers
	Boilers
	Washing machines
	Cisterns
	Toilets

Cooling towers, boilers, washing machines

Which of the following strategies might contribute to water-efficient landscaping? (Choose 3)

Question 17 options:

	Planting of hardwood trees to provide shade.
	Planting native or adapted plant species.
	Installing turf grass.
	Reducing amount of pervious surface area.
	Combining vegetated swales and cisterns to capture rainwater.

Planting of hardwood trees to provide shade

Planting native or adapted plant species

Combining vegetated swales and cisterns to capture rainwater

A previously developed site is undergoing a major renovation. The plans include avoiding undeveloped areas and planting more than half of the site area with native and adapted vegetation. retention ponds and bioswales will also be implemented with native vegetation. Which of the following LEED concepts might these design strategies contribute? (Choose four)

Question 18 options:

	Heat island effect
	Stormwater runoff reduction
	Site disturbance
	Water-efficient landscaping
	Increase density

Heat island effect,

Stormwater runoff reduction,

Site disturbance,

Water-efficient landscaping

If an existing building seeks water efficiency strategies but has a limited budget, installing which of the following would be economically viable options? (Choose 2)

Question 19 options:

	Aerators
	Low-flow toilets
	Waterless urinals
	Capturing rainwater for irrigation.
	Flush valves

Aerator

Flush valves

Which of the following products are not examples of a flow fixture? (Choose 2)

Question 20 options:

	Lavatory faucets
	Toilets
	Sprinkler heads
	Aerators
	Shower heads
	Urinals

Toilets

Urinals

What is the baseline water use for water closets?

Question 21 options:

	0.8 gallons per flush
	1.0 gallons per flush
	1.6 gallons per flush
	3.2 gallons per flush

1.6 gallons

How can potable water use for irrigation be reduced or eliminated? (choose 2)

Question 22 options:

	Using xeriscaping
	Select locally adapted plants
	Increase the coverage of turf grass
	Use organic fertilizers
	Select noninvasive plants

Using xeriscaping

Select locally adapted plants

What does xeriscape mean?

Question 23 options:

	Drip irrigation to save water.
	Dry landscape design by using plants that use little or no water.
	Recycle existing plants on the project site.
	reuse graywater for landscape irrigation.

Dry landscape design by using plants that use little or no water

If you reduce your building's water use by 10%, how many points can you get from Water Use reduction?

Question 24 options:

	2 points.
	1 point.
	3 points.
	None of the above.

none of the above

If you reduce your landscape irrigation water use by 20%, how many points can you get for Outdoor Water Use?

Question 25 options:

	2 points.
	1 point.
	0 points.
	None of the above.

0 points

Which two of the following statements are correct?

Question 26 options:

	Showers are considered to be a 480 second duration for residential projects, and a 280 second duration for non-residential projects.
	High-efficiency (HE) fixtures include: single gravity, high-efficiency toilets (HET), and high-efficiency urinals (HEU).
	The flow rate for ultra low-flow lavatory use is 0.5 gpm.
	The flow rate for showers is 2.5 gpm at 60 psi per shower stall.
	The flow rate for a kitchen sink is 2.2 gpm at 60 psi.

High-efficiency fixtures include: Single gravity, high-efficiency toilets (HET), and high-efficiency urinals (HEU).

The flow rate for ultra low-flow lavatory use is 0.5 gpm.

Which of the following statement are correct? (Choose 3)

Question 27 options:

	WaterSense is developed per EPA and ASHRAE standards.
	WaterSense is a partnership program sponsored by the EPA.
	WaterSense Standards exceed IPC and UPC requirements in some cases.
	Use of WaterSense fixtures may qualify your project for LEED credits.

WaterSense is a partnership program sponsored by the EPA.

WaterSense Standards exceed IPC and UPC requirements in some cases.

Use of WaterSense fixtures may qualify your project for LEED credits