Journeyman Plumber Test

Everything you need to prepare for the test.

Most states require Journeyman plumbers to be licensed by the state or local government to work as a plumber. Part of the licensing process consists of an exam for certification to ensure that each applicants meets the states standards on public safety and consumer protection while working.

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Journeyman Plumber Test Eligibility

Eligibility for certification as a Journeyman plumber is typically different depending on which state or local government you are applying to work in. You will first need to know whether such government regulates plumbers in the traditional trade language or if it is regulated in terms of contractors, as this will make all the difference on what qualifies you for this career.

Most states and municipalities require you to prove that you have worked as an apprentice under the supervision of a licensed journeyman or master plumber for a certain amount of time. This time period will differ slightly, but most require at least one year. Some states or licensing agencies may require certain forms to be filled out by the supervising plumber to prove this. Other states may force applicants to complete an accredited apprenticeship program. This must be done before they apply for their license.

In most cases, the experience required for licensure can be met by either education and/or by working experience. This means that if you have completed a specific training program, the amount of time required for experience may be reduced.

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Journeyman Plumber Test Outline

The exams will vary depending on the state or municipality offering the licensure. However, most include around 100 multiple choice and true/false questions. These are typically situation based. In this type of question, you will be given some facts and answer the question based on those facts.

Exams are usually taken at a testing company location a few times a year. The test may be taken using a computer or may use paper and pencil, depending on your available testing sites.

They typically only test over trade knowledge and skills such as the following:

  • Storm drainage systems
  • Interceptors and traps
  • General knowledge and regulations
  • Venting
  • Water supply systems
  • Isometric analysis
  • Joints and connections
  • Hangers and supports
  • Backflow prevention
  • Plumbing fixtures
  • Septic and sewer
  • Drainage waste

However, some states or local areas may ask a few questions about the business and law aspects of the job. This is not typical unless the area regulates journeyman plumbers in terms of contractors.

It is not a bad idea to be prepared for these types of questions anyways, in the case that there are questions about the following subjects:

  • Permitting
  • Insurance and bonding
  • Bidding process
  • Business management
  • Contracting
  • Worker safety
  • Environmental laws
  • Accounting and tax matters
  • Labor laws

Depending on the length of the test you will be given anywhere from two to five hours to complete it.

Journeyman Plumber Test Registration

To register for this test, you must contact your state licensing board. You will likely be asked to submit an application, which generally includes an application fee. You will also be required to pay an examination fee, the amount of which will vary depending on which state you take the test in.

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By Peter Rench

Peter Rench joined Mometrix in 2009 and serves as Vice President of Product Development, responsible for overseeing all new product development and quality improvements. Mr. Rench, a National Merit Scholar, graduated magna cum laude with a Bachelor of Science in Mechanical Engineering and a minor in mathematics from Texas A&M University.


by Mometrix Test Preparation | This Page Last Updated: December 27, 2023