Section 4: Water Efficiency

Question 1

For a building with a certificate of occupancy dated 1995 or later, the baseline of the water use that would result if all fixtures met the code requirements is what?

Answer 1

120%

Question 2

For a building with a certificate of occupancy dated before 1995, the baseline of the water use that would result if all fixtures met the code requirements is what?

Answer 2

150%

Question 3

What is the Basic indoor water-use reduction calculation?

Answer 3

Daily water use for each fixture type =

Fixture flush or flow rate x Duration of use x User x Uses per person

Question 4

When would the gender ratio affects water usage?

Answer 4

When urinals are installed

Question 5

For a female FTE, how many times per day would they use a water closet in a non-residential facility?

Answer 5

3

Question 6

For a male FTE, how many times per day would they use a water closet in a non-residential facility (if urinals were also available)?

Answer 6

1

Question 7

For a male FTE, how many times per day would they use a urinal in a non-residential facility?

Answer 7

2

Question 8

For water calculations, how many seconds would a public lavatory faucet be turned on per use?

Answer 8

30 seconds

Question 9

In a residential facility, how many times would a water closet be used per day by FTE?

Answer 9

5

Question 10

In a residential facility, how long would a shower be used per FTE per?

Answer 10

480 seconds

Question 11

For the Indoor Water Use Reduction prerequisite, projects in unlisted countries must reduce their water usage below the baseline by at least how much?

Answer 11

20%

Question 12

What does CEE stand for?

Answer 12

Consortium for Energy Efficiency

Question 13

What is the intent of the Building-Level Water Metering prerequisite?

Answer 13

To support water management and identify opportunities for additional water savings by tracking water consumption

Question 14

For the Building-Level Water Metering prerequisite, what kind of water needs to me measured?

Answer 14

Potable water

Question 15

How many points are available for the Outdoor Water Use Reduction credit?

Answer 15

2

Question 16

What are the two thresholds for the Outdoor Water Use Reduction credit?

Answer 16

30% reduction from baseline = 1 point

40% reduction from baseline = 2 points

Question 17

What does LWR stand for?

Answer 17

Landscape water requirement

Question 18

Elements of a landscape that consist of live, horticultural elements are known as what?

Answer 18

Softscape

Question 19

How many points are available for the Indoor Water Use Reduction credit?

Answer 19

5 (4 for data centres)

Question 20

For schools that close at the weekend, and close for 8 weeks vacation, the project assumes how many operational days per year?

Answer 20

195

Question 21

What is the intent of the Cooling Tower Water Use credit?

Answer 21

To conserve water used for cooling tower makeup while controlling microbes, corrosion, and scale in the condenser water system

Question 22

How many points are available for the Cooling Tower Water Use credit?

Answer 22

3 (4 for data centres)

Question 23

Explain how is the cooling tower or evaporative condenser water efficiency calculated?

Answer 23

The number of recirculation cycles before water must be removed by blowdown

Question 24

In terms of a cooling tower, what is are cycles of concentration?

Answer 24

Cycles of concentration are the number of times that a volume of water can circulate through a cooling tower system before dissolved minerals become so concentrated

Question 25

What is blowdown?

Answer 25

The removal of makeup water from a cooling tower or evaporative condenser recirculation system to reduce concentrations of dissolved solids

Question 26

What is makeup water?

Answer 26

Water that is fed into a cooling tower system or evaporative condenser to replace water lost through evaporation, drift, bleed-off, or other causes

Question 27

What is the intent of the Water Metering credit?

Answer 27

To support water management and identify opportunities for additional water savings by tracking water consumption

Question 28

How many points are available for the Water Metering credit?

Answer 28

2

Question 29

For the Water Metering credit, water systems serving what percent of the landscape area need to be metered?

Answer 29

80%

Question 30

For the Water Metering credit, what percentage of water systems service indoor plumbing fixtures and fittings need to be metered?

Answer 30

80%

Question 31

What is an external meter?

Answer 31

A device installed on the outside of a water pipe to record the volume of water passing through it

Question 32

What is another name for an external meter?

Answer 32

Clamp-on meter