Backflow Assembly Tester Evaluation & Troubleshooting

Question 1

What is the first step in testing a backflow prevention assembly?

Accepted Answer

Close shut-off valves

Answer

Drain the water system

Answer

Check for leaks

Answer

Replace the check valve

Question 2

Which tool is commonly used for testing backflow prevention assemblies?

Accepted Answer

Differential pressure gauge

Answer

Hydrometer

Answer

Flow meter

Answer

Thermometer

Question 3

Which issue can cause a reduced pressure zone (RPZ) backflow preventer to continuously discharge water?

Accepted Answer

Failed first check valve

Answer

Air gap too small

Answer

Closed shut-off valves

Answer

Low water temperature

Question 4

What is a common cause of backflow preventer failure?

Accepted Answer

Debris in the check valve

Answer

High water pressure

Answer

Excessive pipe vibration

Answer

Incorrect installation height

Question 5

How often should a backflow prevention assembly be tested to ensure proper operation?

Accepted Answer

Annually

Answer

Every 5 years

Answer

Only when an issue arises

Answer

Every 6 months

Question 6

What is the main reason a double check valve assembly (DCVA) would fail a test?

Accepted Answer

Leaking check valve

Answer

Water temperature fluctuations

Answer

High atmospheric pressure

Answer

Inconsistent water flow