North Dakota Master Plumber Exam Prep

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Your access starts when you do: the days begin the first time you open the course, not at checkout (or 14 days after purchase, whichever comes first).

Official sitting

North Dakota Master Plumber exam at a glance

The North Dakota Master Plumber exam has 100 questions and a time limit of 5 hours. That works out to about 3 minutes per question. Figures are from the licensing board’s published exam information.

Questions100
Time5 hours

Confirm question count, time, open-book rules, and passing score on the live board bulletin before you sit. We do not guarantee a passing result. Source: ndplumbingboard.gov/exam-general-information; N.D. Admin. Code 62-02-01-03. How we source exam facts

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What’s included

18,000+ word study guide

Worked calculations, code-section breakdowns, exam traps, a key-terms glossary and a 30/60/90-day plan.

4 full-length practice exams

Original questions weighted to match the topic mix of the real exam.

400 practice questions

Every one with a written explanation and the code section behind the answer.

Same study guide and four exams on every term. You are choosing how long you can log in.

Instant accessSecure checkoutBuilt on current codes
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What this prep covers

  1. The North Dakota Master Plumber license and the State Plumbing Board
  2. Official exam format (board outline)
  3. The 2018 North Dakota Plumbing Code — what is actually adopted
  4. Plumbing math the closed-book half assumes
  5. Administration and definitions (Chapters 1–2)
  6. General regulations and materials (Chapter 3)
  7. Fixtures (Chapter 4)
  8. Water supply and distribution (Chapter 6 and Appendix A)
  9. Sanitary drainage (Chapter 7) — DWV sizing
  10. Indirect and special waste (Chapter 8)
  11. Vents (Chapter 9)
  12. Traps and interceptors (Chapter 10)
  13. Storm drainage (Chapter 11) and private sewage (62-03.1-03)
  14. Backflow and cross-connection control
  15. Water heaters, relief, and what Chapter 5's absence means
  16. Inspection, testing, and isometric strategy
  17. NDCC 43-18 and board practice — what the closed-book law items look like
  18. North Dakota climate, frost, and Chapter 3 protection
  19. Worked calculations
  20. Completion-question strategy
  21. Sample questions (with reasons)
  22. Mistakes that fail this exam
  23. Glossary
  24. Eight-week study plan
  25. Occupancy fixture counts, accessibility, and clearances
  26. Cleanouts, hangers, and the 'small' rules that add up
  27. Isometric error-spotting drill
  28. Master-level design judgment
  29. Exam day

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Common questions about this exam

How many questions are on the North Dakota Master Plumber exam?

The North Dakota Master Plumber exam has 100 questions and a time limit of 5 hours, about 3 minutes per question. Check the current board bulletin before you book.

How much practice does this prep include?

It includes 4 full-length practice exams and 400 practice questions in total. Every question has a written explanation naming the code section the answer comes from.

How long is the study guide?

The North Dakota Master Plumber guide runs to roughly 18,595 words in 29 sections, starting with “The North Dakota Master Plumber license and the State Plumbing Board” and ending with “Exam day”.

How long do I get access?

Choose 30, 60 or 90 days at checkout. Your days do not start at checkout: they begin the first time you open the course (or 14 days after purchase, whichever comes first). Access works on any device, and you can retake every practice exam as often as you like. Days remaining are shown in your dashboard and you can extend at any time.

Is this an official North Dakota Master Plumber exam?

No. This is independent preparation material. It is not affiliated with or endorsed by any state licensing board or exam vendor, and it does not contain real exam questions. Always confirm current requirements with your licensing board.

About this prep

This prep is built specifically for the North Dakota Master Plumber examination and includes a 18,000+-word study guide written for this exam, 4 full-length practice exams and 400 practice questions, each with a written explanation.

How access works

You are paying for access length (30, 60, or 90 days). The study guide and four timed exams are the same on every term. Your days start the first time you open the course, not at checkout (or 14 days after purchase, whichever comes first), and access works on any device for that term.

Not affiliated with or endorsed by any state licensing board or exam vendor. For exam-preparation purposes only.