Water Efficiency

Question 1

“_____% of the Earth’s surface is covered by water, but less than _____% of that water is fresh water. Only _____% of that _____% is accessible for human use.”

Answer 1

70%
1%
1%
1%

Question 2

_____% of consumed water is discharged back into water supplies after use.

Answer 2

65%

Question 3

Water efficiency helps protect our _____ and the supply of _____ fresh water.

Answer 3

Aquifers

Renewable

Question 4

The three goals of the water efficiency credits are:

1 - Reduce the _____ of water needed for a building and landscaping
2 - Reduce _____ water use
3 - reduce the need for _____ of _____ water

Answer 4

1 - quantity
2 - municipal
3 - treatment, waste

Question 5

Define POTABLE WATER

Answer 5

Water that is suitable for drinking

Question 6

Define NON-POTABLE WATER

Answer 6

Water that is not suitable for human consumption

Question 7

True or False

Water conservation strategies are typically no more expensive than traditional building methods.

Answer 7

True

Question 8

“For both _____ efficiency and _____ efficiency - LEED require an efficiency first approach. After _____, then look for other ways to _____ _____.”

Answer 8

Energy
Water
Efficiency
Reduce use

Question 9

Define WATER BALANCE

Answer 9

When a project only uses the site’s precipitation for both indoor and outdoor water needs.

Question 10

What is the intent behind reducing outdoor water use?

Answer 10

To limit or eliminate the use of natural surface and subsurface waters used for landscape irrigation.

Question 11

Seven goals of proper landscape design include:

1 - _____ water bills
2 - Limit or eliminate _____ water usage
3 - Decrease _____ use due to less pumping and treating of _____
4 - Little or no lawn _____ (which also saves _____)
5 - Less _____ pollution
6 - More _____ available for other _____
7 - Less _____ and _____ needed for maintenance so _____ is simpler

Answer 11

1 - lower
2 - potable
3 - energy, water
4 - mowing, energy
5 - air
6 - water, uses (such as indoor uses)
7 - time, work, gardening

Question 12

Outdoor Water Efficiency Strategies include:

1 - _____ design
2 - Outdoor water _____ practices
3 - Landscape _____
4 - Use _____ and/or _____

Answer 12

1 - landscape
2 - reduction
3 - maintenance
4 - rainwater, gray water

Question 13

Landscape design methods include:

1 - appropriate _____ selection
2 - _____ which reduces or eliminates the need for supplemental irrigation
3 - installing 1-3 inches of _____ around plants
4 - reduce _____ grasses and _____

Answer 13

1 - plant
2 - xeriscaping
3 - mulch
4 - turf, monocultures

Question 14

Along with water efficiency, native plants help with:

1 - green \_\_\_\_\_ landscaping
2 - \_\_\_\_\_ management
3 - restoring \_\_\_\_\_ areas
4 - \_\_\_\_\_ space
5 - water use \_\_\_\_\_ for the outdoors

Answer 14

1 - roof
2 - rainwater
3 - damaged
4 - open
5 - reduction

Question 15

Define NATIVE PLANTS

Native plants require _____ water, _____, and _____ control.

Answer 15

Plants that grow naturally in an area or that have been in an area for many years.

Less,fertilizer, pest

Question 16

Define ADAPTIVE PLANTS

_____ and adaptive plants require _____ water and are more _____ resistant because they are suited to the region’s usual _____, _____, and temperature.

Answer 16

Non-native plants that perform well in the local climate.

Native, less, disease, rainfall, soil,

Question 17

Define INVASIVE PLANTS

Answer 17

Plants that grow quickly and aggressively, spreading and displacing other plants.

Question 18

_____ flowers are preferred to _____, because they will come back year after year and will require less _____.

Answer 18

Perennial, annuals, watering

Question 19

Define XERISCAPING

Xeriscaping is based on 7 principles:
1 - proper \_\_\_\_\_ and design
2 - \_\_\_\_\_ analysis and improvement
3 - appropriate \_\_\_\_\_ selection
4 - practical \_\_\_\_\_ areas
5 - efficient \_\_\_\_\_
6 - use of \_\_\_\_\_
7 - appropriate \_\_\_\_\_

Answer 19

The type of landscaping and gardening that reduces or eliminates the need for supplemental irrigation.

1 - planning
2 - soil
3 - plant
4 - turf
5 - irrigation
6 - mulches
7 - maintenance

Question 20

_____ keeps a plant’s root system _____ and _____ in warmer weather and also helps prevent _____.

Answer 20

Mulching, cool, moist, evaporation

Question 21

Outdoor Water Reduction Practices include:

1 - _____ irrigation
2 - _____ - a single “deep’ watering for an extended period of time is much better than watering every day for a fraction of the time.
3 - _____ based irrigation _____
4 - water _____ - perform at least an annual review

Answer 21

1 - drip
2 - scheduling
3 - weather, controllers
4 - audit

Question 22

Drip irrigation reduces _____ giving it an efficiency of _____% because there is no _____ water.

Answer 22

Evaporation, 90%, runoff

Question 23

Describe SIMPLE PAYBACK

Answer 23

The cost of an item or strategy divided by the yearly savings that product or strategy creates.

Question 24

“Water the landscape during the _____ part of the day and _____ watering on windy days.”

Answer 24

Coolest, avoid

Question 25

Landscape Maintenance Methods include:

1 - _____ mowers
2 - _____ the clippings
3 - _____ the water system

Answer 25

1 - raise
2 - leave
3 - maintain

Question 26

Rainwater, _____, and _____ are considered non-potable. _____ and _____ are excellent alternatives for irrigation water sources.

Answer 26

Graywater, black water, rainwater, graywater

Question 27

Define GRAYWATER

Graywater sources do not include:

1 - _____ water
2 - waste water from _____ sinks
3 - water from dishwashers
4 - waste water from toilets and urinals (_____)

Answer 27

Water that can be used twice

1 - potable
2 - kitchen
3 -
4 - black water

Question 28

Toilets account for _____% of daily water use in the US

Answer 28

25%

Question 29

EPAct of _____ established water _____ standards for water closets, shower heads, faucets, and other uses to save the US an estimated _____ billion gallons of water per _____.

Older toilets use _____ to _____ gallons of water per _____, while all new toilets must have a maximum flush volume of _____ gallons.

Answer 29

1992, conservation, 6.5, day

4, 8, flush, 1.6

Question 30

Indoor Strategies for reducing water use include:

1 - \_\_\_\_\_-flush toilets
2 - high-efficiency \_\_\_\_\_
3 - \_\_\_\_\_ labeling
4 - \_\_\_\_\_ urinals
5 - \_\_\_\_\_ toilet systems
6 - low-flow \_\_\_\_\_ and \_\_\_\_\_
7 - faucets with low-flow \_\_\_\_\_ and/or \_\_\_\_\_ sensors
8 - install water \_\_\_\_\_ for different areas to help in measurement and verification of water usage
9 - Use rainwater and/or \_\_\_\_\_

Answer 30

1 - dual (reduce water usage up to 67% compared to other standard and older toilets)
2 - toilets (1.28 gallon/flush)
3 - watersense
4 - waterless
5 - composting
6 - shower heads, faucets
7 - aerators, motion
8 - meters
9 - graywater

Question 31

In residences, toilets use about _____% of all indoor water.

Answer 31

30%

Question 32

Treating _____ consumes a lot of electricity.

Answer 32

Blackwater

Question 33

Benefits of waterless urinals include:

1 - no \_\_\_\_\_ used
2 - no \_\_\_\_\_ valves
3 - lowered \_\_\_\_\_ 
4 - \_\_\_\_\_ resistant
5 - eliminates \_\_\_\_\_

Answer 33

1 - water
2 - flush
3 - maintenance (faster to clean and requires less cleanser)
4 - vandal (no water supply, valves, or sensors to be tampered with)
5 - flooding (no water supply=can’t overflow)

Question 34

_____ toilets and _____ urinals are the most efficient types of fixtures because they require _____ water.

Answer 34

Composting, waterless, no

Question 35

Water meters usually measure cold _____ water use.

Answer 35

Potable

Question 36

_____ graywater from showers and bathtubs can be used for flushing _____ in most jurisdictions. Such a system could provide an estimated _____% reduction in water use for the average _____.

Answer 36

Recycled, toilets, 30, household

Question 37

The Uniform _____ Code _____ graywater use indoors.

Answer 37

Plumbing, prohibits

Question 38

Describe PROCESSED WATER

In LEED, examples of processed water include:
1 - makeup water for _____ systems
2 - systems that use water in _____ or hospitals
3 - commercial _____ applications - food steamers, ice machines, dishwashers, etc.

Answer 38

Water used by fixtures and systems that aren’t covered by the Energy Policy Act.

1 - mechanical
2 - laboratories
3 - cooking

Question 39

Processed water would NOT be part of LEED for Homes; but would be part of LEED BD+C:_____ or LEED BD+C:_____.

Answer 39

Healthcare, Schools

Question 40

An _____ cooling tower can conserve up to _____% of the water use of a standard cooling tower, depending on climate and configuration.

Answer 40

Evaporative, 20%

Question 41

Watersense and _____ products improve _____.

Answer 41

Energy STAR efficiency

Question 42

LEED water efficiency prerequisites require project teams to _____ water usage inside of the building by at least _____ (irrigation is not included).

Answer 42

Reduce, 20%

Question 43

True or False

For all LEED v4 projects: The project team must complete water efficiency calculations regardless of fixture labeling. (It doesn’t matter if all the fixtures are watersense products or not.)

Answer 43

FALSE

Question 44

Water reduction calculations for the LEED Rating Systems are based on a reduction of the _____ water consumptions, rather than a _____ fixture or fitting.

Answer 44

Total, single

Question 45

Define FTE

Answer 45

Full Time Equivalent (a way of calculating the number of residents in a building, the number of full time and part-time office workers, and the number of transient occupants.)