Plumber Exam Prep / Oklahoma
Plumber Exam — OK
Journeyman Plumber Exam in Oklahoma
Complete breakdown of the journeyman plumber licensing process in Oklahoma — code used, exam provider, and what to study.
Exam Details
- Licensing Body
- Oklahoma Construction Industries Board
- Exam Provider
- PSI Exams
- Code Edition
- 2018 IPC
- Passing Score
- 70%
- Question Count
- 80
- Exam Fee
- $50
- Experience Required
- 4 years
Note: Always verify current requirements with Oklahoma Construction Industries Board.
How Oklahoma Compares Nationally
- Oklahoma's $50 plumbing exam fee sits below the national median of about $65.
- Oklahoma still uses the 2018 IPC, a cycle or two behind the 2021 edition some states have adopted — confirm the exact edition before you test.
Oklahoma Plumber License — What to Know
Statewide journeyman plumber license available in Oklahoma.
Key Code Sections to Master
The International Plumbing Code (IPC) exam covers water supply, drainage, venting, fixtures, water heaters, storm drainage, and special piping. Focus on the table for pipe sizing (Table 604.4 for water supply, Table 710.1 for drainage fixture units), minimum fixture requirements by occupancy type, and venting rules. Drainage fixture units (DFUs) are frequently tested via calculation questions.
Try it free — no signup, instant feedback
Answer a few Plumber questions now
Plumber · Question 1 of 5
According to the IPC, what is the drainage fixture unit (DFU) value for a residential water closet (1.6 gpf or less)?
Pick an answer to see the explanation + an instant AI breakdown.
Start on the web
Practice for the Oklahoma plumber exam
Use this state guide to understand the license requirements, then drill IPC and UPC practice in your browser with pipe-sizing tools. Web access and native app purchases are separate.
Oklahoma Journeyman Plumber Exam — Frequently Asked Questions
How do I get my journeyman plumber license in Oklahoma?
In Oklahoma, the journeyman plumber license is issued by Oklahoma Construction Industries Board. The exam uses the 2018 IPC and is administered by PSI Exams. You need 4 years of experience. The exam fee is $50 and the passing score is 70%. Statewide journeyman plumber license available in Oklahoma.
What plumbing code is used in Oklahoma?
Oklahoma uses the 2018 IPC for its journeyman plumber exam. The exam has 80 questions with a passing score of 70%. The exam is administered by PSI Exams.
What is the difference between IPC and UPC on the plumber exam?
Oklahoma uses the International Plumbing Code (IPC). The IPC exam covers water supply, drainage, venting, fixtures, and pipe sizing. Key tables to master: Table 604.4 (water supply sizing) and Table 710.1 (drainage fixture units). The IPC is used by the majority of U.S. states.
What is the best app to study for the Oklahoma plumber exam?
VoltExam offers Oklahoma journeyman plumber exam prep on the web with IPC/UPC practice questions, explanations, state guidance, and built-in pipe sizing tools. Native mobile apps are available separately for offline study.