Trade certification · Backflow tester
Backflow Prevention Assembly Tester — Practice Exam
The written exam for certified backflow prevention assembly testers: hydraulics, backpressure and backsiphonage, degree of hazard, cross-connection programs, assembly types (AVB, PVB, SVB, DC, RP and detector assemblies), installation, field test procedures and troubleshooting.
Questions last checked against the official sources on October 6, 2026.
The real exam at a glance
- Written exam
- 100 questions, closed book, 70% to pass (ABPA)
- Performance exam
- Hands-on field tests of DC, RP, PVB/SVB assemblies
- Outline
- ABPA Backflow Prevention Assembly Tester Need-to-Know Criteria
- Renewal
- ABPA certificate valid 3 years
What you'll practise
Try a question
How much pressure does a 1-foot column of water exert?
- About 0.433 psi
- About 14.7 psi
- About 1.5 psi per foot
- About 2.31 psi
Show the answer
A. About 0.433 psi — 1 psi lifts water about 2.31 feet.
Sample questions by topic (in English)
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Questions about the Backflow Tester
Is this the official Backflow Tester?
No. Semplr is independent and not affiliated with the exam body. We write every question ourselves, in the official format and at the official level.
What is the real Backflow Tester like?
Written exam: 100 questions, closed book, 70% to pass (ABPA). Performance exam: Hands-on field tests of DC, RP, PVB/SVB assemblies. Outline: ABPA Backflow Prevention Assembly Tester Need-to-Know Criteria. Renewal: ABPA certificate valid 3 years.
How is my practice marked?
Instantly. You see your score against the pass mark, and an explanation for every question — including the ones you got right.
Can I take it on my phone?
Yes. The whole mock exam works on a phone, and your progress is saved in your browser.
Ready for a full run?
One sitting, real timing, then your score against the pass mark.
Start the free mock exam