Oklahoma Journeyman Plumber Exam Prep

Choose your access term

Official sitting

Questions85
Time3 hours
Passing score75%

Confirm question count, time, open-book rules, and passing score on the live board bulletin before you sit. We do not guarantee a passing result. Source: PSI OK bulletin 634 (effective 9/11/2026); OAC 158:30-9-1; OAC 158:30-9-4.

What’s included

19,000+ word study guide

Worked calculations, code-section breakdowns, exam traps, a key-terms glossary and a 30/60/90-day plan.

4 full-length practice exams

Original questions weighted to match the topic mix of the real exam.

340 practice questions

Every one with a written explanation and the code section behind the answer.

Same study guide and four exams on every term. You are choosing how long you can log in.

Instant accessSecure checkoutBuilt on current codes
SKU: N/A Category:

What this prep covers

  1. What paper this course is
  2. The books in the room on October 5, 2026
  3. Papers that are not this course
  4. Who may sit, and what the license lets you do
  5. How the 85 items are split
  6. Head pressure, which the general row tests
  7. Offsets and developed length
  8. Area and volume
  9. Slope and fall
  10. Joints, materials, and the eight piping items
  11. Water supply and backflow
  12. Drains, sewers, and cleanouts
  13. Vents, the thirteen-item row
  14. Traps, interceptors, and indirect waste
  15. Isometrics, seven items
  16. Fuel gas, ten items

…and 29 further sections in the full guide.

Other Oklahoma exam prep

Oklahoma Journeyman Plumber exam — common questions

Who administers the Oklahoma Journeyman Plumber exam?

The Oklahoma Journeyman Plumber is administered by PSI bulletin 634, copyright 2026, effective 9/11/2026. Plumbing Journeyman and Natural Gas: 85 Q / 180 min / 75% (raw 64) until 11/1/2026, then 70% (raw 60). Open book. As of 10/5/2026 bring IPC 2018 with Oklahoma revisions (2024 starts 10/8/2026; 2018 ends 12/14/2026) and IFGC 2018 (2024 starts 10/8/2026). Also Math for Plumbers 8th and OSHA 1926. Not the residential journeyman paper and not Business and Law (50/120/75, raw 37). Experience is OAC 158:30-9-1: 3 years, or the education substitutions in that section..

How many questions are on the Oklahoma Journeyman Plumber exam?

The exam contains 85 questions. You need 75% to pass. You are allowed 3 hours.

How much practice does this prep include?

It includes 4 full-length practice exams and 340 practice questions in total. Every question has a written explanation naming the code section the answer comes from.

How long is the study guide?

The Oklahoma Journeyman Plumber guide runs to roughly 19,412 words, covering 45 sections from licensing rules through worked calculations and solved exam questions.

How long do I get access?

Choose 30, 60 or 90 days at checkout. Access begins the moment you enrol, works on any device, and you can retake every practice exam as often as you like. Days remaining are shown in your dashboard and you can extend at any time.

Is this an official Oklahoma Journeyman Plumber exam?

No. This is independent preparation material. It is not affiliated with or endorsed by any state licensing board or exam vendor, and it does not contain real exam questions. Always confirm current requirements with your licensing board.

About this Oklahoma Journeyman Plumber prep

This prep is built specifically for the Oklahoma Journeyman Plumber examination and includes a 19,000+-word study guide written for this exam, 4 full-length practice exams and 340 practice questions, each with a written explanation.

The Oklahoma Journeyman Plumber is administered by PSI bulletin 634, copyright 2026, effective 9/11/2026. Plumbing Journeyman and Natural Gas: 85 Q / 180 min / 75% (raw 64) until 11/1/2026, then 70% (raw 60). Open book. As of 10/5/2026 bring IPC 2018 with Oklahoma revisions (2024 starts 10/8/2026; 2018 ends 12/14/2026) and IFGC 2018 (2024 starts 10/8/2026). Also Math for Plumbers 8th and OSHA 1926. Not the residential journeyman paper and not Business and Law (50/120/75, raw 37). Experience is OAC 158:30-9-1: 3 years, or the education substitutions in that section.. This prep is written to that board’s current scope, not to a generic national syllabus.

The real Oklahoma Journeyman Plumber exam contains 85 questions, with a passing score of 75%. Our practice exams mirror that structure so the format is familiar before you sit it.

Topics covered

  • What paper this course is
  • The books in the room on October 5, 2026
  • Papers that are not this course
  • Who may sit, and what the license lets you do
  • How the 85 items are split
  • Head pressure, which the general row tests
  • Offsets and developed length
  • Area and volume
  • Slope and fall
  • Joints, materials, and the eight piping items
  • Water supply and backflow
  • Drains, sewers, and cleanouts
  • Vents, the thirteen-item row
  • Traps, interceptors, and indirect waste
  • Isometrics, seven items
  • Fuel gas, ten items
  • Fixtures and the minimums
  • Notches, firestopping, and tests
  • Safety, four items
  • How the arithmetic will be asked

How access works

You are paying for access length (30, 60, or 90 days). The study guide and four timed exams are the same on every term. Access starts when you enrol and works on any device for that term.

Not affiliated with or endorsed by any state licensing board or exam vendor. For exam-preparation purposes only.