Certification Exam
AWWA Backflow Prevention Assembly Tester
Certification Exam
AWWA Backflow Prevention Assembly Tester
Certification Exam
Exam Coverage – Most Tested Areas
1. Hydraulic Principles (Backpressure and Backsiphonage)
2. Reduced Pressure Principle (RPZ) Assembly Components and Operation
3. Double Check Valve Assembly (DCVA) Components and Operation
, 4. Pressure Vacuum Breaker (PVB) and Spill-Resistant Vacuum Breaker (SVB)
Operation
5. Air Gap and Atmospheric Vacuum Breaker (AVB) Applications
6. Field Test Procedures for All Assembly Types
7. Differential Pressure Gauge Test Kit Operation and Calibration
8. Installation Requirements and Hazard Classifications
9. Troubleshooting Abnormal Conditions and Test Failures
10. Record Keeping, Regulations, and Safety Procedures
AWWA Backflow Prevention Assembly Tester
Certification Exam
1. A backflow prevention assembly is primarily designed to prevent
contamination of potable water systems by which of the following conditions?
,A. Increasing water pressure throughout the distribution system
B. Preventing reverse flow of water or other substances into the potable supply
C. Filtering sediment and particulate matter from drinking water
D. Measuring flow rate in commercial distribution systems
Correct Answer: B
Rationale: Backflow prevention assemblies are engineered specifically to protect
potable water supplies from contamination or pollution by stopping water from
flowing in the reverse direction, which could carry hazardous substances into
the clean water system 1 8 .
2. Backflow caused by higher pressure in the customer's non-potable system
than the potable supply system is properly classified as which of the following
conditions?
A. Backsiphonage
B. Backpressure
, C. Atmospheric vacuum
D. Hydraulic surge
Correct Answer: B
Rationale: Backpressure occurs when downstream pressure exceeds supply
pressure, forcing non-potable water back into the potable system through a
cross-connection 1 2 .
3. Backsiphonage is most commonly caused by which of the following conditions
within the water distribution system?
A. Pump failure increasing downstream pressure
B. A drop in supply pressure creating vacuum conditions
C. Thermal expansion in closed piping systems
D. Excessive pipe friction reducing flow velocity
Correct Answer: B