AK Plumber
Alaska Journeyman Plumber Examination
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Cheat sheet
Keep the key ideas within reach.
ExploreKey terms
Get comfortable with the vocabulary.
ExploreStudy plan
Give each week a clear focus.
ExploreCommon mistakes
Understand the traps and how to avoid them.
ExploreCase studies
Put your knowledge to work in context.
ExploreExam-day guide
Prepare for the day ahead.
ExploreAbout this exam
The Alaska Journeyman Plumber license is a state credential that allows a plumber to perform plumbing work in Alaska under the scope defined by state law and regulation. It is intended for tradespeople who have completed the required practical experience and want to work independently at the journeyman level, rather than for homeowners doing their own repairs or for apprentices still accumulating hours. The examination tests both code knowledge and practical judgment. Expect questions on administration and definitions, sizing and fixture-unit math, drainage and venting, water supply and distribution, fixtures and appliances, water heaters and temperature control, sanitary and storm drainage including special waste, fuel gas piping and combustion air, and jobsite safety. Most items are multiple choice and lean on your ability to find and apply the right code section rather than recall trivia. Because the exam is code-driven, preparation should center on a current adopted code book, tabbed and annotated, plus repeated timed practice on calculation and venting problems, which are where candidates lose the most points. Confirm the current edition, application steps, and scheduling details with the state licensing authority before you book.
What you'll study
About AK Plumber preparation
What format is the exam?
It is a multiple-choice examination delivered in a testing-center format, covering the domains listed in the official content outline. The state sets the current delivery method, item count, and time allowance, so check the licensing authority's website for the figure that applies to your test date rather than relying on older study material.
How hard is it, realistically?
It rewards code fluency over memory. Candidates who know where things live in the adopted code and can move quickly through sizing and venting problems generally do fine. Those who study only from summary charts, without practicing lookups under time pressure, tend to struggle on the drainage and venting portion, which carries the most weight.
How long should I study?
Most people need several weeks of consistent work rather than a weekend cram. Build a schedule that covers every domain at least once, then spend the majority of remaining time on drainage, venting, and water supply sizing, since those carry the heaviest weight. Finish with full-length timed practice so pacing is not a surprise.
What study order do you recommend?
Start with general regulations and definitions so code language feels familiar. Then work through drainage, traps, and vents, followed by water supply and sizing math. Move to fixtures, water heaters, sanitary and storm drainage, and fuel gas. Leave safety and administration review for the end, when short review sessions are enough.
Can I retake it if I fail?
Retake rules, waiting periods, and any additional fees are set by the state licensing authority and can change. Look up the current retake policy on the official site before you schedule, and use the score report to identify which domains cost you the most points so your second attempt is targeted rather than a repeat of the first.
How much does it cost and what is the passing score?
Those figures are published by the state licensing authority and are updated periodically, so they are not repeated here. Check the official licensing website for the current application fee, examination fee, and passing standard before you submit anything, and keep a copy of the fee schedule with your application records.
What trips people up most?
Three things: not bringing or not knowing how to use an indexed code book, running out of time on calculation items, and misreading questions that ask for the minimum permitted value versus the maximum. Slow down on wording, and when a question involves fixture units or developed length, write the steps out instead of doing them mentally.
Is this the same as a master plumber license?
No. Journeyman and master are separate credentials with different experience requirements and different scopes of work. This exam is aimed at the journeyman level. If you are unsure which credential your job requires, confirm with the state licensing authority before applying, because the applications and qualifications differ.
Should I bring my own code book?
Many jurisdictions allow reference materials in the testing room, but the permitted references and any annotation rules are set by the exam administrator. Verify what is allowed for your test date on the official site, and if a code book is permitted, tab it thoroughly in advance so you are not fumbling during the exam.