Master Plumber Exam Administration, Codes, and Regulations 2 — Questions and Answers
Question 1: Under the IPC, who is authorized to grant a variance from a code requirement when strict compliance would cause undue hardship?
- The licensed master plumber
- The Authority Having Jurisdiction (AHJ) (Correct answer)
- The plumbing inspector only
- The state plumbing board
Correct answer: The Authority Having Jurisdiction (AHJ)
The Authority Having Jurisdiction (AHJ) has the power to grant variances when strict code compliance creates undue hardship.
Question 2: Which document must a plumber typically submit before beginning work on a new commercial plumbing installation?
- Certificate of occupancy
- Permit application with plans (Correct answer)
- Master plumber license copy only
- Letter of intent from the owner
Correct answer: Permit application with plans
A permit application accompanied by construction drawings must be submitted and approved before commercial plumbing work begins.
Question 3: The IPC requires that plumbing systems be inspected and approved before being concealed. Which term describes this required inspection?
- Rough-in inspection (Correct answer)
- Certificate inspection
- Final walkthrough
- Occupancy check
Correct answer: Rough-in inspection
A rough-in inspection verifies that piping is correctly installed before walls and floors are closed in.
Question 4: When a conflict exists between the IPC and a state plumbing code, which generally takes precedence?
- The IPC always supersedes state law
- The state code, since states adopt and amend model codes (Correct answer)
- The federal plumbing standard
- Whichever is more lenient
Correct answer: The state code, since states adopt and amend model codes
States adopt model codes like the IPC with local amendments, so the state-adopted version controls within that jurisdiction.
Question 5: Which action is required when a plumber discovers existing work that violates the current plumbing code during a renovation project?
- Ignore it if not part of the current scope
- Report it to the AHJ immediately (Correct answer)
- Correct it only if the owner agrees to pay
- Document it and continue working
Correct answer: Report it to the AHJ immediately
Discovered code violations must be reported to the AHJ, who will determine the required corrective action.
Question 6: A master plumber's license is typically required to do which of the following?
- Replace a faucet washer
- Pull permits and supervise plumbing work (Correct answer)
- Flush a water heater
- Unclog a drain with a hand snake
Correct answer: Pull permits and supervise plumbing work
Pulling permits and supervising plumbing installations are activities that require a master plumber license.
Question 7: Under most state laws, what happens to a plumbing permit if work is not commenced within a specified period (commonly 180 days)?
- The permit is automatically renewed
- The permit expires and must be reapplied for (Correct answer)
- The inspector issues a warning only
- The permit converts to a provisional status
Correct answer: The permit expires and must be reapplied for
Permits lapse if work does not begin within the jurisdiction's required commencement period, typically 180 days.
