AWWA (American Water Works Association) Cross
Connection Control Specialist Exam 1 Multiple
Choices Questions and Answers Latest 2025/2026
GRADED A+
1. What is the primary purpose of a cross-connection control program?
A) To reduce water consumption
B) To prevent contamination of the potable water supply
C) To improve water pressure
D) To reduce water treatment costs
- ANS -B) To prevent contamination of the potable water supply
Explanation: The main goal of a cross-connection control program is to
protect the public water system from potential contamination due to
backflow.
2. Which of the following is the most effective way to prevent backflow at
a residential lawn irrigation system?
A) Installing a reduced pressure zone (RPZ) valve
B) Installing a vacuum breaker
C) Installing a double-check valve
D) Installing a hose bib vacuum breaker
- ANS -B) Installing a vacuum breaker
Explanation: For irrigation systems, a vacuum breaker is often used to
prevent backflow of contaminants into the water supply when there is a
drop in pressure.
, 3. What does a reduced pressure zone (RPZ) valve do?
A) It allows for the flow of water in one direction only.
B) It reduces the pressure of the water before it enters the system.
C) It maintains water pressure to prevent backflow under both
backsiphonage and backpressure conditions.
D) It maintains a constant flow rate.
- ANS -C) It maintains water pressure to prevent backflow under both
backsiphonage and backpressure conditions.Explanation: An RPZ valve is
one of the most reliable devices for backflow prevention, as it provides
protection under both backsiphonage and backpressure situations.
4. Which of the following situations is an example of backsiphonage?
A) A water main breaks and causes negative pressure in the system.
B) A booster pump causes a rise in system pressure.
C) A fire hydrant is used to fight a fire, and the pressure drops.
D) Both A and C.
- ANS -D) Both A and C.
Explanation: Backsiphonage occurs when there is negative pressure in the
system, which can pull contaminants into the potable water supply, such
as when a water main breaks or during the use of a fire hydrant.
5. What is the minimum testing frequency for backflow prevention
devices in a high-hazard area?
A) Every 3 years
B) Annually
C) Every 5 years
Connection Control Specialist Exam 1 Multiple
Choices Questions and Answers Latest 2025/2026
GRADED A+
1. What is the primary purpose of a cross-connection control program?
A) To reduce water consumption
B) To prevent contamination of the potable water supply
C) To improve water pressure
D) To reduce water treatment costs
- ANS -B) To prevent contamination of the potable water supply
Explanation: The main goal of a cross-connection control program is to
protect the public water system from potential contamination due to
backflow.
2. Which of the following is the most effective way to prevent backflow at
a residential lawn irrigation system?
A) Installing a reduced pressure zone (RPZ) valve
B) Installing a vacuum breaker
C) Installing a double-check valve
D) Installing a hose bib vacuum breaker
- ANS -B) Installing a vacuum breaker
Explanation: For irrigation systems, a vacuum breaker is often used to
prevent backflow of contaminants into the water supply when there is a
drop in pressure.
, 3. What does a reduced pressure zone (RPZ) valve do?
A) It allows for the flow of water in one direction only.
B) It reduces the pressure of the water before it enters the system.
C) It maintains water pressure to prevent backflow under both
backsiphonage and backpressure conditions.
D) It maintains a constant flow rate.
- ANS -C) It maintains water pressure to prevent backflow under both
backsiphonage and backpressure conditions.Explanation: An RPZ valve is
one of the most reliable devices for backflow prevention, as it provides
protection under both backsiphonage and backpressure situations.
4. Which of the following situations is an example of backsiphonage?
A) A water main breaks and causes negative pressure in the system.
B) A booster pump causes a rise in system pressure.
C) A fire hydrant is used to fight a fire, and the pressure drops.
D) Both A and C.
- ANS -D) Both A and C.
Explanation: Backsiphonage occurs when there is negative pressure in the
system, which can pull contaminants into the potable water supply, such
as when a water main breaks or during the use of a fire hydrant.
5. What is the minimum testing frequency for backflow prevention
devices in a high-hazard area?
A) Every 3 years
B) Annually
C) Every 5 years
