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Free Backflow Prevention Assembly Tester Practice Test
249+ exam-style Backflow questions with a worked explanation on every single answer. Assembly types, test procedures, and hydraulic theory dominate. Knowing why an RP differs from a DCVA matters more than rote recall.
What is on the Backflow Prevention Assembly Tester exam
| Questions | 100 |
|---|---|
| Time limit | 180 minutes |
| Format | 4-option multiple choice |
| Passing score | The written exam runs about 100 questions with roughly 70% to pass, and a hands-on practical on live assemblies is scored separately. Your state or water purveyor sets the exact rules. |
Content areas covered
- Cross-Connection TheoryBackpressure vs backsiphonage, degrees of hazard, air gaps, and what actually drives backflow.
- Assemblies & DevicesRP, DC, PVB, SVB, AVB and air gaps — how each is built, where each is allowed, and where each is not.
- Field Testing & TroubleshootingTest procedures, differential gauges, hookups, valid readings, and diagnosing a failed assembly.
- Regulations & Program AdministrationCross-connection control programs, the Safe Drinking Water Act, reporting, and tester responsibilities.
Certification levels
This exam is offered at multiple levels: Tester Certification. Each level has its own blueprint, so practice at the level you are testing for.
How to pass, honestly
There is no shortcut, but there is a method that works. Practice with real exam-style questions instead of flashcards, read the worked explanation on every answer even when you got it right, and drill your weakest content area until it stops being your weakest. On the calculation questions, work the steps by hand rather than memorizing final numbers, because the exam changes the numbers.
Every question here ships with the full reasoning, not just the letter. It is completely free, with no account and no email, so you can start right now.
Frequently asked questions
Is this really free?
Yes. No account, no email, no ads. Your progress stays in your browser.
How many Backflow questions are there?
Currently 249+, each with a worked explanation, plus full-length practice exams.
Are these the real exam questions?
No. Every question is original, written from publicly available content outlines. We never reproduce actual exam questions.
What score do I need to pass?
The written exam runs about 100 questions with roughly 70% to pass, and a hands-on practical on live assemblies is scored separately. Your state or water purveyor sets the exact rules.