Master Plumber Exam Administration, Codes, and Regulations 3 — Questions and Answers
Question 1: According to the IPC, which fixture requires a trap that is directly connected to a vent?
- Bathtub
- Floor drain in a rarely used area
- Island sink using an air admittance valve (Correct answer)
- Fixture using a combination drain-waste-vent
Correct answer: Island sink using an air admittance valve
Island sinks that cannot connect to conventional venting often use approved air admittance valves to maintain trap seals.
Question 2: What is the primary purpose of a plumbing code adoption hearing held by a jurisdiction?
- To license new plumbers
- To allow public comment before a code becomes law (Correct answer)
- To review permit applications
- To certify plumbing inspectors
Correct answer: To allow public comment before a code becomes law
Public hearings allow stakeholders to comment on proposed code adoptions or amendments before they take legal effect.
Question 3: Which edition of the IPC is enforceable in a given jurisdiction?
- The most recently published edition
- The edition officially adopted by that jurisdiction (Correct answer)
- The edition in effect when the building was constructed
- The edition recommended by the manufacturer
Correct answer: The edition officially adopted by that jurisdiction
Only the edition that a jurisdiction has officially adopted and published in its laws is enforceable there.
Question 4: A plumbing contractor installs work without obtaining the required permit. Under most codes, what penalty may apply?
- A verbal warning for first offense
- Fines, stop-work orders, and possible license revocation (Correct answer)
- Only a fine equal to the permit fee
- No penalty if the work passes inspection
Correct answer: Fines, stop-work orders, and possible license revocation
Unpermitted work can result in fines, mandatory removal of the work, stop-work orders, and disciplinary action against the license.
Question 5: According to the IPC, who is responsible for ensuring that plumbing work complies with the code?
- Only the property owner
- Only the licensed plumber performing the work
- Both the permit holder and the licensed plumber (Correct answer)
- The building official exclusively
Correct answer: Both the permit holder and the licensed plumber
Both the permit holder (often the contractor) and the licensed plumber share responsibility for code compliance.
Question 6: Under the IPC, which of the following best defines 'approved' when referring to materials or equipment?
- Listed by any testing lab worldwide
- Acceptable to the AHJ and compliant with applicable standards (Correct answer)
- Approved by the installing plumber
- Manufactured in the United States
Correct answer: Acceptable to the AHJ and compliant with applicable standards
Approved means the AHJ has determined the material or equipment meets applicable standards and is acceptable for the intended use.
Question 7: When a plumbing inspector issues a 'Notice of Violation,' what is the contractor required to do?
- Continue work and address it at final inspection
- Correct the violation within the time specified by the inspector (Correct answer)
- Submit a variance request immediately
- Appeal to the state board within 10 days
Correct answer: Correct the violation within the time specified by the inspector
A Notice of Violation requires the contractor to correct the cited deficiency within the timeframe specified by the inspector.
Master Plumber Exam Administration, Codes, and Regulations 3
According to the IPC, which fixture requires a trap that is directly connected to a vent?