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Exams · Certifications · Licensing

Journeyman Plumber Exam

New Jersey: scope: practice questions

Our Journeyman Plumber bank has 5 questions on this topic. Here are 3 of them with answers; the full mock exam draws from every topic, like the real one.

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Question 1 · New Jersey

Who may perform plumbing in New Jersey?

  1. Anyone with a construction permit
  2. A master, a plumbing contractor, or supervised W-2 employees
  3. Any home improvement contractor
  4. Any registered journeyman working on their own account with insurance
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B. A master, a plumbing contractor, or supervised W-2 employees — N.J.A.C. 13:32-1.4(b).

Question 2 · New Jersey

Which task may a person who is NOT a licensed master plumber do in New Jersey?

  1. Installing a water heater
  2. Clearing stoppages (and a cleanout to do it)
  3. Installing a backflow preventer on an irrigation system for a homeowner
  4. Installing a water softener
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B. Clearing stoppages (and a cleanout to do it) — N.J.A.C. 13:32-1.4(e)1; water heaters, softeners and backflow preventers are plumbing under 1.4(c)7.

Question 3 · New Jersey

Is free plumbing work for a non-profit still the practice of plumbing in New Jersey?

  1. No, unpaid work is exempt
  2. Yes; a master's license is required
  3. Only if the job would be worth more than $500 at market rates
  4. Only in commercial buildings
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B. Yes; a master's license is required — N.J.A.C. 13:32-1.4(d).

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