Wisconsin Master Plumber Exam Prep

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Official sitting

Questions110
Time4 hours
Passing score70%
BookOpen book

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: DSPS master plumber licensure page and trades exam schedule.

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.

484 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.

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What this prep covers

  1. Qualifying for the master examination — SPS 305.91 and § 145.07
  2. What a master is allowed — and required — to do
  3. Plan review is a master topic — SPS 382.20
  4. Testing, maintenance, and demolition — SPS 382.21 and 382.22
  5. Design of sanitary drains — SPS 382.30 from the master’s side
  6. Venting design — SPS 382.31
  7. Traps, indirect waste, interceptors — design choices
  8. Cleanouts, storm, discharge points
  9. Water-supply design — SPS 382.40
  10. Cross-connection control as a design and registration duty
  11. Products, supports, manufactured homes — SPS 384, 382.60, 382.51
  12. POWTS design — SPS 383, 385, and the five manuals
  13. Multipurpose piping and NFPA 13D
  14. Worked design calculations (methods)
  15. Sample master questions
  16. Mistakes unique to master candidates

…and 44 further sections in the full guide.

Other Wisconsin exam prep

Wisconsin Master Plumber exam — common questions

Who administers the Wisconsin Master Plumber exam?

The Wisconsin DSPS Master Plumber (two parts, 70% each) is administered by DSPS master plumber licensure page and trades exam schedule, read 2026-10-07. Open book, 70 percent each part. Part 1 is 110 questions and 4 hours. Part 2 is 132 questions and 4 hours. Eight references: one binder (Wis. Stat. 145, SPS 305, SPS 381-387, Wis. Stat. 106, SPS 302, DOC 325, printed notes), NFPA 13D 2019, five POWTS component manuals, and the Multi-Purpose Piping Systems Design Manual. NFPA 24 is not on this list. Pearson fee $95 and DSPS candidate fee $30 per part. Qualification: 1,000 hours per year for at least 3 years as a Wisconsin licensed journeyman plumber, or an accredited civil, mechanical, or other approved engineering degree related to plumbing. 24 hours CE, 4-year term, expiration March 31. Clearinghouse Rule 26-019 is final and effective September 1, 2026. The licensure page says exams cover new codes one month after the effective date and does not print October 1, 2026. Not PSI. Not UPC. Not IPC. Not the journeyman 87/3-hour and 120/3-hour papers..

How many questions are on the Wisconsin Master Plumber exam?

The exam contains 110 questions. You need 70% to pass. You are allowed 4 hours.

How much practice does this prep include?

It includes 4 full-length practice exams and 484 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 Wisconsin Master Plumber guide runs to roughly 18,666 words, covering 60 sections from licensing rules through worked calculations and solved exam questions.

How long do I get access?

Choose 30, 60 or 90 days at checkout. Access begins the moment you enrol, 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 Wisconsin 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 Wisconsin Master Plumber prep

This prep is built specifically for the Wisconsin Master Plumber examination and includes a 18,000+-word study guide written for this exam, 4 full-length practice exams and 484 practice questions, each with a written explanation.

The Wisconsin DSPS Master Plumber (two parts, 70% each) is administered by DSPS master plumber licensure page and trades exam schedule, read 2026-10-07. Open book, 70 percent each part. Part 1 is 110 questions and 4 hours. Part 2 is 132 questions and 4 hours. Eight references: one binder (Wis. Stat. 145, SPS 305, SPS 381-387, Wis. Stat. 106, SPS 302, DOC 325, printed notes), NFPA 13D 2019, five POWTS component manuals, and the Multi-Purpose Piping Systems Design Manual. NFPA 24 is not on this list. Pearson fee $95 and DSPS candidate fee $30 per part. Qualification: 1,000 hours per year for at least 3 years as a Wisconsin licensed journeyman plumber, or an accredited civil, mechanical, or other approved engineering degree related to plumbing. 24 hours CE, 4-year term, expiration March 31. Clearinghouse Rule 26-019 is final and effective September 1, 2026. The licensure page says exams cover new codes one month after the effective date and does not print October 1, 2026. Not PSI. Not UPC. Not IPC. Not the journeyman 87/3-hour and 120/3-hour papers.. This prep is written to that board’s current scope, not to a generic national syllabus.

The real Wisconsin Master Plumber exam contains 110 questions, with a passing score of 70%. Our practice exams mirror that structure so the format is familiar before you sit it.

Topics covered

  • Qualifying for the master examination — SPS 305.91 and § 145.07
  • What a master is allowed — and required — to do
  • Plan review is a master topic — SPS 382.20
  • Testing, maintenance, and demolition — SPS 382.21 and 382.22
  • Design of sanitary drains — SPS 382.30 from the master’s side
  • Venting design — SPS 382.31
  • Traps, indirect waste, interceptors — design choices
  • Cleanouts, storm, discharge points
  • Water-supply design — SPS 382.40
  • Cross-connection control as a design and registration duty
  • Products, supports, manufactured homes — SPS 384, 382.60, 382.51
  • POWTS design — SPS 383, 385, and the five manuals
  • Multipurpose piping and NFPA 13D
  • Worked design calculations (methods)
  • Sample master questions
  • Mistakes unique to master candidates
  • Tab list, glossary, and study plan
  • Running a shop under ch. 145 — master as qualifier
  • Isometrics and calculation sheets the way a plan reviewer reads them
  • Key citations

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. Access starts when you enrol and 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.