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Jurisdiction and source checkpoint

Which Journeyman Plumber route are you taking?

There is no national exam form. Confirm jurisdiction, credential, issuer, portions, code edition, and allowed references before treating practice as aligned. This choice is additive and does not replace lesson, flashcard, test, Pathway, weak-area, missed-question, score, or exam-date progress.

Zero-admission boundary

Texas/Massachusetts aligned admissions: 0 / 587 — 510 prompts, 5 lessons, and 72 flashcards all remain mixed supplemental material until every item has a complete source, ownership, license, and human-review record.

Continue to mixed supplemental Test →

Plumber Mixed Supplemental Practice

392 public supplemental prompts across 13 topics, each with a written explanation of why the correct answer is correct. Start below — the first questions are free and no account is required.

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Current mixed-practice topic labels

Sample supplemental Master / Journeyman Plumber questions

Drainage Systems

According to the IPC, what is the drainage fixture unit (DFU) value for a residential water closet (1.6 gpf or less)?

  1. A. 2 DFU
  2. B. 3 DFU
  3. C. 4 DFU
  4. D. 6 DFU

Answer: B. IPC Table 709.1 assigns a value of 3 DFU to a water closet (flush tank, 1.6 gpf or less). Older or higher flow toilets are rated at 4 DFU.

Venting

According to the IPC, every trap and trapped fixture shall be:

  1. A. Vented
  2. B. Made of cast iron
  3. C. Located in the basement
  4. D. Provided with a cleanout

Answer: A. IPC 901.2 states that every trap and trapped fixture shall be vented to protect the trap seal from siphonage and backpressure.

Traps & Cleanouts

What is the minimum liquid seal depth required for a fixture trap according to the IPC?

  1. A. 1 inch
  2. B. 2 inches
  3. C. 3 inches
  4. D. 4 inches

Answer: B. IPC 1002.1 requires a trap seal of not less than 2 inches and not more than 4 inches.

Work through every topic on the Plumber supplemental question directory, or start mixed supplemental practice above.

Master / Journeyman Plumber exam — frequently asked questions

How many questions are on the Master / Journeyman Plumber exam?

There is no national form. Current Texas Journeyman has a 100-item / 120-minute written portion and a 6-task / 240-minute practical portion. Current Massachusetts Journeyman has 80 written and 40 practical items, 160 minutes each. VoltExam provides 392 practice questions as mixed supplemental practice; zero legacy prompts are admitted as Texas- or Massachusetts-aligned.

What score do you need to pass the Master / Journeyman Plumber exam?

Passing rules are jurisdiction- and portion-specific. Massachusetts currently requires 70% on each part; the reviewed Texas handbook sections do not publish a raw percentage pass line. A mixed VoltExam percentage is not a pass prediction.

What is the pass rate for the Master / Journeyman Plumber exam?

VoltExam has not verified one comparable first-attempt pass rate across plumber jurisdictions and portions, so it does not estimate one or claim that mixed practice predicts a licensing result.

How long should I study for the Master / Journeyman Plumber exam?

Study time depends on your experience, jurisdiction, credential, portions, code edition, and allowed references. Confirm the current issuer sources first, then use mixed supplemental practice to select concepts for review.

What topics are on the Master / Journeyman Plumber exam?

VoltExam's mixed supplemental bank groups prompts under labels including Drainage Systems, Venting, Traps & Cleanouts, Water Supply, Fixtures. Those labels are not a Texas or Massachusetts blueprint, and zero legacy items are admitted as aligned to either reviewed form.