- The UT-JP written exam requires a 70% passing score on 100 questions in four hours.
- The practical has two projects - Plastic Assembly and Copper Assembly - each worth 37 points.
- Failing either practical project means retaking the entire practical, not just the failed section.
- Written attempts cost $85; practical attempts cost $78 - each retake is a new fee.
The Passing Score, Exactly
If you're prepping for the Utah Journeyman Plumber License Exam (UT-JP) and want a single number to anchor your study plan around, here it is: 70%. That's the passing score on the written exam administered through Prov on behalf of the Utah Division of Professional Licensing (DOPL). Out of 100 scored questions, you need roughly 70 correct answers to pass, though Prov's scoring engine applies the percentage directly rather than a raw item count you calculate yourself.
The practical exam works differently. It isn't graded on a percentage scale in the same way - it's scored by project, with defined point values per task. We'll break both down separately below because conflating the two is one of the most common ways candidates misjudge how "close" they are to licensure.
For a full walkthrough of how these two exams fit into the broader licensure process, see the UT-JP Requirements 2026 guide, and for a side-by-side look at the difficulty of each component, check How Hard Is the UT-JP Exam?.
How the Written Exam Is Scored
The UT-JP written exam is delivered as computer-based multiple choice, and it is open book - you're allowed to bring approved reference materials, most notably the current Prov reference list, which includes the 2024 International Plumbing Code (ISBN 978-1959851738). This matters directly for your score: an older bulletin still floating around references the 2021 IPC, but that edition is outdated for current testing. Studying from the wrong code edition can cost you points on code-citation questions even if your underlying plumbing knowledge is solid.
You have four hours to answer 100 questions. That works out to a little under two and a half minutes per question on average, which is generous for an open-book exam - but only if you know where to find things quickly. Candidates who haven't tabbed or indexed their code book beforehand often burn their time margin flipping pages instead of reasoning through questions.
Key Takeaway
Because the exam is open book, your prep should include physically practicing how fast you can locate a code section, not just memorizing content. Tab your 2024 IPC before test day.
Scoring is a straight percentage of correct answers across all 100 questions - there's no indication of per-domain minimums you must clear individually. That means a strong performance in your best domains can offset a weaker one, as long as your overall correct count clears 70%. This is exactly why understanding the domain weighting (next section) matters for how you allocate study hours.
Passing the Practical: Points, Not Percentages
The practical exam is a different animal entirely, and it's worth understanding in detail because it's administered in person and structured around hands-on assembly work rather than answer choices.
Plastic Assembly - 37 Points
Candidates build a plastic piping assembly to specification within the shared two-hour, thirty-minute testing window. Precision on joints, supports, and layout accuracy all factor into the point total.
- Bring your own specified tools, materials, and safety glasses - nothing is provided
- Work methodically; rushing increases the risk of a fitting error that costs points
Copper Assembly - 37 Points
The copper project mirrors the plastic project in structure but tests different skills - soldering technique, fitting alignment, and clean workmanship under time pressure.
- Rolling offsets are part of practical preparation - practice them repeatedly before test day
- Clean, accurate joints matter as much as getting the assembly "done"
Here's the detail that trips people up: the two projects share a single two-hour-and-thirty-minute block. There's no indication that time is split evenly per project, so pacing between the two assemblies is a skill in itself. If you spend too long perfecting the plastic run, you may shortchange the copper work.
Because the practical is scored on physical output rather than a written percentage, "studying" for it looks different - it's repetition-based skill building, not flashcards. If you want a broader sense of how challenging candidates generally find this component relative to the written exam, the UT-JP Pass Rate 2026 breakdown discusses the official cohort data in more depth.
Domain Weighting and What It Means for 70%
The written exam draws from 13 official content domains. Two of them - Plumbing Math and Plumbing Safety - are explicitly weighted at nine questions each, making them the heaviest single domains on the blueprint that we have confirmed counts for. That's 18 of your 100 questions, or nearly a fifth of the exam, concentrated in just two content areas.
| Domain | Confirmed Question Count |
|---|---|
| Plumbing Math | 9 questions |
| Plumbing Safety | 9 questions |
| Remaining 11 domains | Share the remaining 82 questions |
The other eleven domains - Basic Valves, Drain Waste and Vent (DWV), Fuel Gas, Hydronics, Indirect & Special Waste, Pipe and Fittings, Plumbing Drawing, Plumbing Fixtures, Structural Penetration & Insulation, Water Heaters, and Water Supply - divide the remaining questions across the blueprint. Because the written exam is scored as one aggregate percentage rather than domain-by-domain, a candidate who is exceptionally strong in Water Supply and Pipe and Fittings can offset a shakier grasp of, say, Hydronics, provided the overall total clears 70%.
That said, treating any domain as skippable is risky, since you don't know in advance which specific questions you'll draw within each area. For a full domain-by-domain study breakdown, including what each content area actually tests, see the UT-JP Exam Domains 2026 guide.
Plumbing Math
Nine questions on this domain alone means math fluency - pipe sizing calculations, offset angles, volume and flow figures - has an outsized effect on whether you clear 70%.
- Practice rolling offset math specifically, since it also appears in the practical
- Don't rely solely on the code book here - calculation speed matters under the four-hour clock
Plumbing Safety
Equally weighted at nine questions, this domain covers jobsite safety practices and standards that a licensed journeyman is expected to know cold, not look up.
- These tend to be more recall-based than code-lookup-based
- Fast, confident answers here protect your time budget for harder domains
Fees, Retakes, and Registration Mechanics
Understanding the passing score also means understanding what a missed attempt costs - both in time and money. The written exam fee is $85 per attempt, and the practical exam fee is $78 per attempt. Neither fee is refundable if you fall short, and each subsequent attempt requires paying again.
Effective January 19, 2026, first-time candidates registering through Prov must electronically submit a Verification of Plumber Experience before they can sit for the exam. If you're a first-time applicant approaching this timeline, build in extra lead time for that submission step so it doesn't delay your scheduled test date.
For candidates weighing how retake costs stack up against the value of the license itself, the UT-JP Certification Cost 2026 breakdown lays out the full pricing picture, and Is the UT-JP Certification Worth It? looks at the return on that investment. Once licensed, remember that renewal isn't free either - licenses expire November 30 of even-numbered years, and renewal requires $74 plus 12 approved continuing education hours, including at least eight core hours.
Scheduling Your Prep Around the Passing Score
Because the written exam rewards an aggregate 70%, not domain-specific minimums, your prep schedule should mirror the blueprint's weighting rather than treat all 13 domains equally. Here's a compact way to sequence six weeks of study leading into test day, front-loading the domains with the most confirmed questions and reserving the final stretch for the practical's hands-on skills.
Plumbing Math and Plumbing Safety
- Drill calculation problems daily, including offset math
- Review safety standards until recall is automatic, not looked-up
Code-Heavy Domains
- Work through DWV, Water Supply, Fuel Gas, and Pipe and Fittings using the 2024 IPC
- Practice locating sections quickly in your tabbed code book
Remaining Written Domains
- Cover Hydronics, Indirect & Special Waste, Plumbing Drawing, Plumbing Fixtures, Structural Penetration & Insulation, Water Heaters, and Basic Valves
- Take full-length timed practice runs to build stamina for the four-hour window
Practical Rehearsal
- Repeat Plastic Assembly and Copper Assembly builds under a timed two-hour-thirty-minute clock
- Confirm you have every specified tool, material, and your safety glasses ready
If you want a more detailed first-attempt strategy that goes beyond scheduling, the UT-JP Study Guide 2026 covers question-answering technique and reference-material strategy in depth. Running full practice exams on our practice test platform before you commit to a real test date is one of the most reliable ways to see where your percentage actually lands against that 70% threshold.
Common Miscalculations Candidates Make
A few recurring errors show up around how people interpret the passing score:
- Assuming per-domain passing minimums exist on the written exam. The confirmed structure is an aggregate 70% across all 100 questions, not a domain-by-domain gate.
- Treating practical points like a percentage. Plastic Assembly and Copper Assembly are each worth 37 points; failing either one means redoing the full practical, regardless of how well the other project went.
- Studying from an outdated code edition. Some older bulletins reference the 2021 IPC. The current Prov reference list uses the 2024 IPC (ISBN 978-1959851738) - using the wrong edition can cost points on code questions.
- Underestimating time pressure in an open-book format. Four hours sounds long for 100 questions, but flipping through an unfamiliar code book eats minutes fast.
- Ignoring the experience verification step. As of January 19, 2026, first-time candidates must submit Verification of Plumber Experience electronically before registration is complete - missing this can delay your test date, not your score, but it's a scheduling trap worth avoiding.
Once you understand where the 70% threshold applies and where it doesn't, the rest of your prep becomes a matter of targeted repetition rather than guesswork. Employers hiring journeyman-level plumbers in Utah generally expect this license as a baseline credential, which is part of why understanding the exact mechanics of passing - not just "studying hard" - pays off; see UT-JP Jobs and UT-JP Salary Guide 2026 for how the license translates into career outcomes.
FAQ
You need 70% correct across the 100 scored questions on the written exam, delivered by computer over a four-hour testing window through Prov.
No. The practical consists of two projects - Plastic Assembly and Copper Assembly - each worth 37 points. It isn't expressed as a simple percentage the way the written exam is.
You must retake the entire practical exam, including the project you already passed. There is no option to redo only the failed portion.
No confirmed domain-specific minimums exist. The 70% passing score applies to your aggregate performance across all 13 domains and 100 questions, though Plumbing Math and Plumbing Safety carry nine questions each and deserve focused attention.
Yes, the written exam is open book. Make sure your reference material matches the current Prov list, including the 2024 International Plumbing Code, rather than an older edition referenced in outdated bulletins.
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