CA-NV AWWA WATER USE EFFICIENCY PRACTITIONER GRADE 1 PRACTICE EXAM
LATEST QUESTIONS AND CORRECT ANSWERS
1. What does AWWA stand for?
A) American Water Works Association
B) American Water & Wastewater Administration
C) Association of Water Works Agencies
D) American Water Wellness Association
ANSWER: A
EXPLANATION: AWWA is the American Water Works Association, a professional
organization dedicated to water management and quality.
2. The primary goal of a Water Use Efficiency (WUE) program is to:
A) Increase water pressure for all customers
B) Reduce per capita water consumption without compromising service
C) Replace all old pipes in the system
D) Charge higher rates for water use
ANSWER: B
EXPLANATION: WUE aims to reduce water waste and encourage efficient use while
maintaining quality of life and service.
3. In California, what state agency is primarily responsible for setting water efficiency
standards for plumbing fixtures?
A) California Energy Commission
B) Department of Water Resources (DWR)
,C) California Public Utilities Commission
D) State Water Resources Control Board
ANSWER: B
EXPLANATION: The Department of Water Resources (DWR), in coordination with other
agencies, sets standards for water-efficient fixtures under the California Code of
Regulations.
4. What is the maximum flow rate, in gallons per minute (gpm), for a lavatory faucet
manufactured after 1994 under federal standards?
A) 1.2 gpm
B) 1.5 gpm
C) 2.0 gpm
D) 2.5 gpm
ANSWER: D
EXPLANATION: The federal Energy Policy Act (EPAct) of 1992 set the maximum flow rate for
lavatory faucets at 2.2 gpm at 60 psi, but the industry standard is often referred to as 2.5
gpm for older standards. Current CA standards are lower.
5. The current federal standard for a new urinal flush volume is:
A) 0.5 gallons per flush (gpf)
B) 1.0 gallons per flush (gpf)
C) 1.28 gallons per flush (gpf)
D) 1.6 gallons per flush (gpf)
ANSWER: A
,EXPLANATION: Federal standards set by EPAct 1992 were 1.0 gpf for urinals. However,
newer standards and codes (like CALGreen) require 0.5 gpf or less for new installations in
CA.
6. Which of the following is NOT a common type of water meter?
A) Positive displacement meter
B) Turbine meter
C) Venturi meter
D) Barometer
ANSWER: D
EXPLANATION: A barometer measures atmospheric pressure, not water flow.
7. What does "I&I" stand for in wastewater collection systems?
A) Infiltration and Inflow
B) Irrigation and Infiltration
C) Inspection and Installation
D) Inlet and Inflow
ANSWER: A
EXPLANATION: Infiltration and Inflow refer to groundwater and stormwater that enter the
sewer system, increasing treatment costs.
8. A dual-flush toilet typically offers two flush options: one for liquid waste and one for solid
waste. What are the approximate flush volumes?
A) 0.8 gpf and 1.6 gpf
B) 1.0 gpf and 1.28 gpf
, C) 1.28 gpf and 1.6 gpf
D) 0.5 gpf and 1.0 gpf
ANSWER: A
EXPLANATION: A common dual-flush toilet offers a reduced flush (typically 0.8 to 1.1 gpf)
for liquid waste and a full flush (1.6 gpf or less) for solid waste.
9. What is the purpose of a pressure-reducing valve (PRV) in a residential plumbing system?
A) Increase water pressure to upper floors
B) Reduce main line pressure to prevent pipe damage and waste
C) Filter out sediment
D) Regulate water temperature
ANSWER: B
EXPLANATION: PRVs reduce high incoming municipal pressure to a safer, more efficient
level (typically 50-80 psi) to prevent leaks, pipe stress, and fixture wear.
10. ET in irrigation scheduling stands for:
A) Estimated Timing
B) Evapotranspiration
C) Efficient Transfer
D) Evaporation Time
ANSWER: B
EXPLANATION: Evapotranspiration is the combined water loss from soil evaporation and
plant transpiration, used to calculate irrigation needs.
LATEST QUESTIONS AND CORRECT ANSWERS
1. What does AWWA stand for?
A) American Water Works Association
B) American Water & Wastewater Administration
C) Association of Water Works Agencies
D) American Water Wellness Association
ANSWER: A
EXPLANATION: AWWA is the American Water Works Association, a professional
organization dedicated to water management and quality.
2. The primary goal of a Water Use Efficiency (WUE) program is to:
A) Increase water pressure for all customers
B) Reduce per capita water consumption without compromising service
C) Replace all old pipes in the system
D) Charge higher rates for water use
ANSWER: B
EXPLANATION: WUE aims to reduce water waste and encourage efficient use while
maintaining quality of life and service.
3. In California, what state agency is primarily responsible for setting water efficiency
standards for plumbing fixtures?
A) California Energy Commission
B) Department of Water Resources (DWR)
,C) California Public Utilities Commission
D) State Water Resources Control Board
ANSWER: B
EXPLANATION: The Department of Water Resources (DWR), in coordination with other
agencies, sets standards for water-efficient fixtures under the California Code of
Regulations.
4. What is the maximum flow rate, in gallons per minute (gpm), for a lavatory faucet
manufactured after 1994 under federal standards?
A) 1.2 gpm
B) 1.5 gpm
C) 2.0 gpm
D) 2.5 gpm
ANSWER: D
EXPLANATION: The federal Energy Policy Act (EPAct) of 1992 set the maximum flow rate for
lavatory faucets at 2.2 gpm at 60 psi, but the industry standard is often referred to as 2.5
gpm for older standards. Current CA standards are lower.
5. The current federal standard for a new urinal flush volume is:
A) 0.5 gallons per flush (gpf)
B) 1.0 gallons per flush (gpf)
C) 1.28 gallons per flush (gpf)
D) 1.6 gallons per flush (gpf)
ANSWER: A
,EXPLANATION: Federal standards set by EPAct 1992 were 1.0 gpf for urinals. However,
newer standards and codes (like CALGreen) require 0.5 gpf or less for new installations in
CA.
6. Which of the following is NOT a common type of water meter?
A) Positive displacement meter
B) Turbine meter
C) Venturi meter
D) Barometer
ANSWER: D
EXPLANATION: A barometer measures atmospheric pressure, not water flow.
7. What does "I&I" stand for in wastewater collection systems?
A) Infiltration and Inflow
B) Irrigation and Infiltration
C) Inspection and Installation
D) Inlet and Inflow
ANSWER: A
EXPLANATION: Infiltration and Inflow refer to groundwater and stormwater that enter the
sewer system, increasing treatment costs.
8. A dual-flush toilet typically offers two flush options: one for liquid waste and one for solid
waste. What are the approximate flush volumes?
A) 0.8 gpf and 1.6 gpf
B) 1.0 gpf and 1.28 gpf
, C) 1.28 gpf and 1.6 gpf
D) 0.5 gpf and 1.0 gpf
ANSWER: A
EXPLANATION: A common dual-flush toilet offers a reduced flush (typically 0.8 to 1.1 gpf)
for liquid waste and a full flush (1.6 gpf or less) for solid waste.
9. What is the purpose of a pressure-reducing valve (PRV) in a residential plumbing system?
A) Increase water pressure to upper floors
B) Reduce main line pressure to prevent pipe damage and waste
C) Filter out sediment
D) Regulate water temperature
ANSWER: B
EXPLANATION: PRVs reduce high incoming municipal pressure to a safer, more efficient
level (typically 50-80 psi) to prevent leaks, pipe stress, and fixture wear.
10. ET in irrigation scheduling stands for:
A) Estimated Timing
B) Evapotranspiration
C) Efficient Transfer
D) Evaporation Time
ANSWER: B
EXPLANATION: Evapotranspiration is the combined water loss from soil evaporation and
plant transpiration, used to calculate irrigation needs.
