Trade certification · Plumbing
Journeyman Plumber Exam
The licensing exam for journeyman plumbers: drainage, venting, water supply, fixtures and safety, based on the IPC or UPC depending on your state.
Questions last checked against the official sources on October 6, 2026.
The real exam at a glance
- Based on
- IPC or UPC, by state
- Set by
- Each state or city
- Format
- Written exam, often plus practical
- Tip
- Know your state's code book
What you'll practise
Try a question
What is the purpose of plumbing codes?
- To limit the work that unlicensed plumbers may do
- To protect public health and safety
- To increase costs
- To set prices
Show the answer
B. To protect public health and safety — Plumbing protects drinking water and sanitation.
Sample questions by topic (in English)
- Drainage
- Venting
- Water supply
- Backflow prevention
- Materials and joining
- Fixtures
- Plumbing math
- Safety
- Fuel gas
- Troubleshooting
- Tools and techniques
- Accessibility
- Scenarios
- Texas: licenses
- Texas: endorsements
- Texas: responsible master
- Washington: certificates
- Washington: trainees
- Washington: contractors
- Minnesota: licenses
- Minnesota: unlicensed
- Minnesota: contractors
- Idaho: certificates
- Oregon: board
- Oregon: licenses
- Oregon: contractors
- Oregon: exemptions
- Montana: licenses
- Iowa: licenses
- Iowa: renewals
- Wisconsin: licenses
- Colorado: licenses
- Colorado: experience
- Connecticut: apprentices
- Connecticut: renewals
- Massachusetts: licenses
- Massachusetts: water heaters
- New Mexico: certificates
- New Mexico: exams
- New Mexico: plumbing
- New Jersey: master
- New Jersey: exams
- New Jersey: scope
- North Dakota: licenses
- Kentucky: definitions
- Arkansas: exemptions
- Alaska: statute
- Alaska: provisional
- Louisiana: journeyman
- Louisiana: master
- Louisiana: scope
- Virginia: experience
- Michigan: apprentices
- Michigan: exemptions
- Alabama: master
- Alabama: apprentices
- Rhode Island: journeyperson
- Hawaii: renewals
- West Virginia: exemptions
Ask the examiner
Ask about this exam: why an answer is wrong, a grammar point, or “quiz me on …”.
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Questions about the Journeyman Plumber
Is this the official Journeyman Plumber?
No. Semplr is independent and not affiliated with the exam body. We write every question ourselves, in the official format and at the official level.
What is the real Journeyman Plumber like?
Based on: IPC or UPC, by state. Set by: Each state or city. Format: Written exam, often plus practical. Tip: Know your state's code book.
How is my practice marked?
Instantly. You see your score against the pass mark, and an explanation for every question — including the ones you got right.
Can I take it on my phone?
Yes. The whole mock exam works on a phone, and your progress is saved in your browser.
Ready for a full run?
One sitting, real timing, then your score against the pass mark.
Start the free mock exam