___________________________________________________________________
Kansas Plumbing Plans Examiner
Examination Advanced 100-Question
Practice Exam 2026 | Questions &
Answers with Detailed Rationales |
Complete Exam Prep & Study Guide
1. During plan review, a plumbing drawing references a plumbing code edition
different from the edition adopted by the jurisdiction. What should the
plans examiner do first?
A. Approve the plans if the proposed installation exceeds minimum requirements
B. Require the designer to identify and use the code edition adopted by the AHJ
C. Allow the contractor to select the preferred code
D. Review the project under the newest published edition
Answer: Require the designer to identify and use the code edition adopted by
the AHJ
Rationale: The applicable code is determined by the jurisdiction and project
requirements, not by the designer's preference or the newest available edition.
2. A commercial plumbing plan shows fixture symbols but does not identify
the occupancy classification. Why is this information important?
,A. Occupancy determines pipe color
B. Occupancy can determine minimum plumbing fixture requirements
C. Occupancy determines the water meter manufacturer
D. Occupancy determines the allowable pipe material exclusively
Answer: Occupancy can determine minimum plumbing fixture requirements
Rationale: Fixture counts and types are commonly based on occupancy
classification, occupant load, and applicable plumbing-code provisions.
3. A floor plan shows a toilet room containing two water closets but provides
no dimensional information for required clearances. What is the best plan-
review response?
A. Approve because the fixtures are shown
B. Require sufficient dimensions to demonstrate compliance
C. Ignore clearances because they are architectural issues
D. Require all fixtures to be relocated
Answer: Require sufficient dimensions to demonstrate compliance
Rationale: A plumbing plan must provide enough information for the reviewer
to determine fixture spacing, accessibility, and required clearances.
4. A plumbing riser diagram conflicts with the floor plan regarding the location
of a sanitary branch. Which document should automatically control?
A. The riser
B. The floor plan
C. Neither; the conflict must be resolved by the design professional
D. The contractor's interpretation
Answer: Neither; the conflict must be resolved by the design professional
Rationale: Conflicting construction documents should not be resolved by the
plans examiner through assumption. The design professional should provide
coordinated documents.
, 5. A proposed plumbing system uses a material not specifically identified in
the applicable code's basic material provisions. What is the most
appropriate review consideration?
A. Reject it automatically
B. Accept it because all plastic pipe is equivalent
C. Determine whether the material is permitted through an applicable standard,
listing, approval, or alternate-material provision
D. Allow the contractor to submit product information after installation
Answer: Determine whether the material is permitted through an applicable
standard, listing, approval, or alternate-material provision
Rationale: Material acceptance depends on the adopted code, referenced
standards, product listing, and applicable approval provisions.
6. A plans examiner discovers that a fixture count was calculated using the
wrong occupant load. What is the likely consequence?
A. Pipe insulation becomes unnecessary
B. The required number of fixtures may be incorrect
C. The water heater becomes automatically oversized
D. Vent sizing becomes irrelevant
Answer: The required number of fixtures may be incorrect
Rationale: Occupant load is often a fundamental input in determining required
plumbing fixtures for commercial occupancies.
7. A plumbing plan identifies a backflow prevention device but provides no
indication of the hazard or connection being protected. What should the
reviewer request?
A. Elimination of the device
B. Identification of the protected connection and applicable backflow method
C. Installation of the largest possible device
D. A larger water meter
, Answer: Identification of the protected connection and applicable backflow
method
Rationale: Backflow protection must correspond to the type of cross-connection
and degree of hazard rather than being selected arbitrarily.
8. A potable-water piping plan proposes a connection between potable water
and a chemical-treatment system. What is the principal plan-review
concern?
A. Pipe color only
B. Cross-connection control
C. Drain slope only
D. Fixture trim
Answer: Cross-connection control
Rationale: Connections to systems containing chemicals or nonpotable
substances present a significant backflow hazard and require appropriate
protection.
9. A plumbing plan indicates that a water service enters a building but does
not show the point of connection to the public water system. Why is this
significant?
A. It prevents evaluation of the entire water distribution arrangement
B. It determines the roof drainage area
C. It establishes the fixture color
D. It eliminates the need for a shutoff valve
Answer: It prevents evaluation of the entire water distribution arrangement
Rationale: The reviewer needs to understand the source, service,
meter/interface, control valves, and distribution system to evaluate the design.
10.A building has a high number of fixtures but the water-service pipe is
shown as very small. What should the plans examiner evaluate?
Kansas Plumbing Plans Examiner
Examination Advanced 100-Question
Practice Exam 2026 | Questions &
Answers with Detailed Rationales |
Complete Exam Prep & Study Guide
1. During plan review, a plumbing drawing references a plumbing code edition
different from the edition adopted by the jurisdiction. What should the
plans examiner do first?
A. Approve the plans if the proposed installation exceeds minimum requirements
B. Require the designer to identify and use the code edition adopted by the AHJ
C. Allow the contractor to select the preferred code
D. Review the project under the newest published edition
Answer: Require the designer to identify and use the code edition adopted by
the AHJ
Rationale: The applicable code is determined by the jurisdiction and project
requirements, not by the designer's preference or the newest available edition.
2. A commercial plumbing plan shows fixture symbols but does not identify
the occupancy classification. Why is this information important?
,A. Occupancy determines pipe color
B. Occupancy can determine minimum plumbing fixture requirements
C. Occupancy determines the water meter manufacturer
D. Occupancy determines the allowable pipe material exclusively
Answer: Occupancy can determine minimum plumbing fixture requirements
Rationale: Fixture counts and types are commonly based on occupancy
classification, occupant load, and applicable plumbing-code provisions.
3. A floor plan shows a toilet room containing two water closets but provides
no dimensional information for required clearances. What is the best plan-
review response?
A. Approve because the fixtures are shown
B. Require sufficient dimensions to demonstrate compliance
C. Ignore clearances because they are architectural issues
D. Require all fixtures to be relocated
Answer: Require sufficient dimensions to demonstrate compliance
Rationale: A plumbing plan must provide enough information for the reviewer
to determine fixture spacing, accessibility, and required clearances.
4. A plumbing riser diagram conflicts with the floor plan regarding the location
of a sanitary branch. Which document should automatically control?
A. The riser
B. The floor plan
C. Neither; the conflict must be resolved by the design professional
D. The contractor's interpretation
Answer: Neither; the conflict must be resolved by the design professional
Rationale: Conflicting construction documents should not be resolved by the
plans examiner through assumption. The design professional should provide
coordinated documents.
, 5. A proposed plumbing system uses a material not specifically identified in
the applicable code's basic material provisions. What is the most
appropriate review consideration?
A. Reject it automatically
B. Accept it because all plastic pipe is equivalent
C. Determine whether the material is permitted through an applicable standard,
listing, approval, or alternate-material provision
D. Allow the contractor to submit product information after installation
Answer: Determine whether the material is permitted through an applicable
standard, listing, approval, or alternate-material provision
Rationale: Material acceptance depends on the adopted code, referenced
standards, product listing, and applicable approval provisions.
6. A plans examiner discovers that a fixture count was calculated using the
wrong occupant load. What is the likely consequence?
A. Pipe insulation becomes unnecessary
B. The required number of fixtures may be incorrect
C. The water heater becomes automatically oversized
D. Vent sizing becomes irrelevant
Answer: The required number of fixtures may be incorrect
Rationale: Occupant load is often a fundamental input in determining required
plumbing fixtures for commercial occupancies.
7. A plumbing plan identifies a backflow prevention device but provides no
indication of the hazard or connection being protected. What should the
reviewer request?
A. Elimination of the device
B. Identification of the protected connection and applicable backflow method
C. Installation of the largest possible device
D. A larger water meter
, Answer: Identification of the protected connection and applicable backflow
method
Rationale: Backflow protection must correspond to the type of cross-connection
and degree of hazard rather than being selected arbitrarily.
8. A potable-water piping plan proposes a connection between potable water
and a chemical-treatment system. What is the principal plan-review
concern?
A. Pipe color only
B. Cross-connection control
C. Drain slope only
D. Fixture trim
Answer: Cross-connection control
Rationale: Connections to systems containing chemicals or nonpotable
substances present a significant backflow hazard and require appropriate
protection.
9. A plumbing plan indicates that a water service enters a building but does
not show the point of connection to the public water system. Why is this
significant?
A. It prevents evaluation of the entire water distribution arrangement
B. It determines the roof drainage area
C. It establishes the fixture color
D. It eliminates the need for a shutoff valve
Answer: It prevents evaluation of the entire water distribution arrangement
Rationale: The reviewer needs to understand the source, service,
meter/interface, control valves, and distribution system to evaluate the design.
10.A building has a high number of fixtures but the water-service pipe is
shown as very small. What should the plans examiner evaluate?
