ASSE 5000 Professional Qualification
Standard Exam (focused on
Cross-Connection Control and Backflow
Prevention) With Actual Questions &
Verified Answers, Plus Explained
Rationales/Expert Verified For
Guaranteed Pass 2026/Latest
Updated/Instant Download Pdf
1. What is the primary purpose of cross-connection control?
A. Reduce water pressure
B. Protect potable water from contamination
C. Increase flow rate
D. Improve plumbing aesthetics
Rationale: Protecting potable water from contamination caused
by backflow or cross-connections is the core goal of
cross-connection control programs.
2. Backpressure occurs when:
A. Static pressure is equal throughout the system
B. Downstream pressure exceeds supply pressure
C. System pressure forces contaminants back into potable water
D. Water temperature rises above boiling
, Rationale: Backpressure pushes contaminants back into the
potable water supply if not controlled.
3. Backsiphonage is best described as:
A. Rainwater entering pipes
B. A vacuum that draws contaminants into potable water
C. Pressure relief valve failure
D. A normal operational condition
Rationale: Backsiphonage is a negative pressure condition that
can pull contaminants into potable water.
4. Which assembly protects against both backpressure and
backsiphonage?
A. Atmospheric Vacuum Breaker
B. Reduced Pressure Principle Backflow Preventer (RP)
C. Anti-siphon ballcock
D. Air Gap only
Rationale: RP devices provide protection from both
backpressure and backsiphonage.
5. The Double Check Backflow Prevention Assembly (ASSE 1015)
protects against:
A. Backpressure only
B. Backsiphonage only
C. Both backpressure and backsiphonage under low hazard
conditions
D. Neither
Rationale: Double Check assemblies provide dual check valve
protection for low hazard situations.
6. A proper air gap must be:
A. Equal to the pipe diameter
B. At least 1/2 pipe diameter
, C. Twice the effective diameter of the supply pipe
D. Smaller than the pipe diameter
Rationale: An air gap must be twice the effective diameter of the
supply to prevent backflow.
7. Which standard covers Pressure Vacuum Breaker Assemblies?
A. ASSE 1012
B. ASSE 1020
C. ASSE 1047
D. ASSE 1035
Rationale: ASSE 1020 is the standard for Pressure Vacuum
Breaker Assemblies.
8. The Hose Connection Vacuum Breaker is identified by what ASSE
standard?
A. 1002
B. 1012
C. 1011
D. 1056
Rationale: Hose Connection Vacuum Breakers are defined under
ASSE 1011.
9. What is the first step in conducting a cross-connection control
survey?
A. Repair device
B. Install backflow preventer
C. Identify potential cross-connections and hazards
D. File paperwork
Rationale: Surveys begin with identifying potential hazards.
10. Which condition is a hazard during a field survey?
A. Open door
B. Confined spaces with limited ventilation
Standard Exam (focused on
Cross-Connection Control and Backflow
Prevention) With Actual Questions &
Verified Answers, Plus Explained
Rationales/Expert Verified For
Guaranteed Pass 2026/Latest
Updated/Instant Download Pdf
1. What is the primary purpose of cross-connection control?
A. Reduce water pressure
B. Protect potable water from contamination
C. Increase flow rate
D. Improve plumbing aesthetics
Rationale: Protecting potable water from contamination caused
by backflow or cross-connections is the core goal of
cross-connection control programs.
2. Backpressure occurs when:
A. Static pressure is equal throughout the system
B. Downstream pressure exceeds supply pressure
C. System pressure forces contaminants back into potable water
D. Water temperature rises above boiling
, Rationale: Backpressure pushes contaminants back into the
potable water supply if not controlled.
3. Backsiphonage is best described as:
A. Rainwater entering pipes
B. A vacuum that draws contaminants into potable water
C. Pressure relief valve failure
D. A normal operational condition
Rationale: Backsiphonage is a negative pressure condition that
can pull contaminants into potable water.
4. Which assembly protects against both backpressure and
backsiphonage?
A. Atmospheric Vacuum Breaker
B. Reduced Pressure Principle Backflow Preventer (RP)
C. Anti-siphon ballcock
D. Air Gap only
Rationale: RP devices provide protection from both
backpressure and backsiphonage.
5. The Double Check Backflow Prevention Assembly (ASSE 1015)
protects against:
A. Backpressure only
B. Backsiphonage only
C. Both backpressure and backsiphonage under low hazard
conditions
D. Neither
Rationale: Double Check assemblies provide dual check valve
protection for low hazard situations.
6. A proper air gap must be:
A. Equal to the pipe diameter
B. At least 1/2 pipe diameter
, C. Twice the effective diameter of the supply pipe
D. Smaller than the pipe diameter
Rationale: An air gap must be twice the effective diameter of the
supply to prevent backflow.
7. Which standard covers Pressure Vacuum Breaker Assemblies?
A. ASSE 1012
B. ASSE 1020
C. ASSE 1047
D. ASSE 1035
Rationale: ASSE 1020 is the standard for Pressure Vacuum
Breaker Assemblies.
8. The Hose Connection Vacuum Breaker is identified by what ASSE
standard?
A. 1002
B. 1012
C. 1011
D. 1056
Rationale: Hose Connection Vacuum Breakers are defined under
ASSE 1011.
9. What is the first step in conducting a cross-connection control
survey?
A. Repair device
B. Install backflow preventer
C. Identify potential cross-connections and hazards
D. File paperwork
Rationale: Surveys begin with identifying potential hazards.
10. Which condition is a hazard during a field survey?
A. Open door
B. Confined spaces with limited ventilation
