Backflow Prevention Assembly Tester — Practice Exam
Application: practice questions
Our Backflow Tester bank has 10 questions on this topic. Here are 3 of them with answers; the full mock exam draws from every topic, like the real one.
Question 1
Why might a purveyor require an RP on a customer with an auxiliary water supply such as a private well?
- The private source could be pushed or drawn into the public system
- Private wells always have higher pressure than city mains, so they'd overload the meter
- It saves water
- Wells always have high pressure
Show the answer
A. The private source could be pushed or drawn into the public system — Auxiliary supplies are a common containment trigger.
Question 2
A fire sprinkler system contains antifreeze. What protection is usually required?
- An AVB
- A DC
- An RP or RPDA
- A hose bibb vacuum breaker
Show the answer
C. An RP or RPDA — Antifreeze is a contaminant.
Question 3
Where is a water supply to a commercial dishwasher or chemical dispenser commonly protected?
- With no protection, since commercial dishwashers use potable water only
- With a pressure regulator
- With an air gap or an approved RP or vacuum breaker as the code requires
- With no protection, since dishwashers use potable water
Show the answer
C. With an air gap or an approved RP or vacuum breaker as the code requires — Chemical dispensers are cross connections.