Plumber Exam Prep
Journeyman Plumber Exam by State
Plumbing codes and licensing requirements vary significantly by state — some use the IPC, others the UPC, and a few have their own state codes. Find yours below.
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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)?
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51
States covered
1,000+
Practice questions in app
IPC + UPC
Code editions covered
Journeyman Plumber License by State
Plumber License Exam Questions & Answers
How do I study for the journeyman plumber exam?
To study for the journeyman plumber exam, work through IPC and UPC practice questions organized by code section, focusing on drain sizing, venting, water supply, and fixture unit calculations. Practice DFU problems daily and simulate timed sets. Most candidates pass within 8 weeks studying 30 to 60 minutes per day using a focused web study plan.
What is the best app to study for the plumber exam?
VoltExam offers journeyman plumber exam prep on the web with IPC/UPC practice questions, explanations, state guidance, and a built-in pipe DFU calculator. Native mobile apps are separate purchases for offline study.
How many questions are on the journeyman plumber exam?
Most state journeyman plumber exams contain 70 to 100 multiple-choice questions based on the International Plumbing Code or Uniform Plumbing Code. The exact count varies by state and exam provider. Most states require a passing score of 70 percent.
What is the difference between IPC and UPC?
The IPC, or International Plumbing Code, is adopted by most US states east of the Rockies and published by the ICC. The UPC, or Uniform Plumbing Code, is used primarily in California, Oregon, Washington, and other western states and published by the IAPMO. Both cover the same core plumbing principles but have specific differences in fixture unit values and pipe sizing tables.
How long does it take to get a journeyman plumber license?
Getting a journeyman plumber license typically requires 4 to 5 years of apprenticeship experience plus passing a state licensing exam. Once you meet the experience requirement, most candidates need 4 to 12 weeks of dedicated exam prep to pass. Some states also require a separate application review period after passing the exam.
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