Backflow Assembly Tester Prevention Methods

Question 1

What is the primary purpose of a backflow prevention assembly?

Accepted Answer

Prevent backflow of contaminated water

Answer

Increase water pressure

Answer

Improve water taste

Answer

Reduce pipe corrosion

Question 2

Which type of backflow prevention device is commonly used in high-risk applications?

Accepted Answer

Reduced Pressure Zone (RPZ) assembly

Answer

Double Check Valve Assembly (DCVA)

Answer

Air Gap

Answer

Atmospheric Vacuum Breaker (AVB)

Question 3

Which backflow condition occurs when the pressure in a potable water system drops below atmospheric pressure?

Accepted Answer

Backsiphonage

Answer

Backpressure

Answer

Water hammer

Answer

Cross-connection

Question 4

What is the minimum required height for an air gap in a backflow prevention system?

Accepted Answer

Twice the diameter of the pipe (minimum one inch)

Answer

One-half inch

Answer

One foot

Answer

Six inches

Question 5

Which backflow prevention device is designed for use on systems with low or moderate hazard risk?

Accepted Answer

Double Check Valve Assembly (DCVA)

Answer

Atmospheric Vacuum Breaker (AVB)

Answer

Reduced Pressure Zone (RPZ) Assembly

Answer

Hose Bib Vacuum Breaker (HBVB)

Question 6

How often should backflow prevention assemblies be tested according to most local regulations?

Accepted Answer

Annually

Answer

Every five years

Answer

Only when installed

Answer

Every six months