Michigan Plumbing Contractor Exam Questions
With Correct Answers 2026
Probation
Section 338.3519 / D - CORRECT ANSWER -Probation means a sanction which permits a board
to evaluate over a period of time a licensee's or registrant's fitness to practice an occupation.
Homeowner Installation
Section 338. - CORRECT ANSWER -A homeowner may install his or her own plumbing,
building sewer, or private sewer in a single family dwelling if a permit is secured.
Medical Gas Piping
Section 338. - CORRECT ANSWER -The installation of medical gas piping providing the
installation shall be performed under the supervision of a licensed plumbing contractor.
Enforcement Action
Who may initiate an action to enforce this act or rules promulgated under this act? - CORRECT
ANSWER -The attorney general, a local prosecuting attorney, or an attorney representing a
governmental subdivision may initiate an action to enforce this act or rules promulgated under
this act.
Section 338.3561
Plumbing Violations and Fines
, Section 338. - CORRECT ANSWER -A person, whether licensed or not licensed, is guilty
of a misdemeanor punishable by a fine of $1,000 per day for each day the violation occurs,
except that a fine shall not exceed $5,000 in total per violation; or punishable by imprisonment
for not more than 90 days; or both.
Plumbing Inspector
Section 338.3549 - CORRECT ANSWER -An individual licensed under this act as a plumbing
inspector may NOT be engaged, directly or indirectly, with a plumbing business.
Plumbing Apprentice (1)
Section 338.3537.29 - CORRECT ANSWER -An individual employed as an apprentice plumber
shall register with the department on a form provided by the department within 30 days after
employment.
Plumbing Apprentice (2)
Section 338.3537.29 - CORRECT ANSWER -An apprentice registration is invalid after 5 years from
the date of registration, unless the registered apprentice applies for and takes the examination
for a journey license. The registration remains valid until either a license is issued or the
apprentice fails to take the exam.
Plumbing Apprentice (3)
Section 338.3537.29 - CORRECT ANSWER -Upon request by the apprentice to the board, the
board may grant an extension of an apprentice registration for a period of time as determined
appropriate by the board.
With Correct Answers 2026
Probation
Section 338.3519 / D - CORRECT ANSWER -Probation means a sanction which permits a board
to evaluate over a period of time a licensee's or registrant's fitness to practice an occupation.
Homeowner Installation
Section 338. - CORRECT ANSWER -A homeowner may install his or her own plumbing,
building sewer, or private sewer in a single family dwelling if a permit is secured.
Medical Gas Piping
Section 338. - CORRECT ANSWER -The installation of medical gas piping providing the
installation shall be performed under the supervision of a licensed plumbing contractor.
Enforcement Action
Who may initiate an action to enforce this act or rules promulgated under this act? - CORRECT
ANSWER -The attorney general, a local prosecuting attorney, or an attorney representing a
governmental subdivision may initiate an action to enforce this act or rules promulgated under
this act.
Section 338.3561
Plumbing Violations and Fines
, Section 338. - CORRECT ANSWER -A person, whether licensed or not licensed, is guilty
of a misdemeanor punishable by a fine of $1,000 per day for each day the violation occurs,
except that a fine shall not exceed $5,000 in total per violation; or punishable by imprisonment
for not more than 90 days; or both.
Plumbing Inspector
Section 338.3549 - CORRECT ANSWER -An individual licensed under this act as a plumbing
inspector may NOT be engaged, directly or indirectly, with a plumbing business.
Plumbing Apprentice (1)
Section 338.3537.29 - CORRECT ANSWER -An individual employed as an apprentice plumber
shall register with the department on a form provided by the department within 30 days after
employment.
Plumbing Apprentice (2)
Section 338.3537.29 - CORRECT ANSWER -An apprentice registration is invalid after 5 years from
the date of registration, unless the registered apprentice applies for and takes the examination
for a journey license. The registration remains valid until either a license is issued or the
apprentice fails to take the exam.
Plumbing Apprentice (3)
Section 338.3537.29 - CORRECT ANSWER -Upon request by the apprentice to the board, the
board may grant an extension of an apprentice registration for a period of time as determined
appropriate by the board.
