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Free Practice Questions for OH Journeyman Plumber

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Key Facts: OH Journeyman Plumber Exam

70%

Passing Score

Ohio CILB

~100

Questions

PSI exam

$305+

Total Cost

$50 exam + $255 license

Ohio PC

Code

Based on IPC

The Ohio journeyman plumber exam has approximately 100 questions with a 3-hour time limit requiring 70% to pass. Ohio uses the Ohio Plumbing Code based on the IPC. The exam is administered by PSI with approximately $50 exam fee and $255 license fee. Ohio's CILB oversees all plumbing licensing.

Sample OH Journeyman Plumber Practice Questions

Try these sample questions to review concepts for the OH Journeyman Plumber exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 298+ question experience with AI tutoring.

1Under the IPC adopted by Ohio, what is the minimum slope for a 4-inch horizontal drain?
A.1/16 inch per foot
B.1/8 inch per foot
C.1/4 inch per foot
D.1/2 inch per foot
Explanation: Under the IPC, 4-inch and larger drains require 1/8 inch per foot minimum slope. Pipes 2-1/2 inches and smaller require 1/4 inch per foot. Ohio enforces IPC standards via Ohio CILB (PSI).
2Under the IPC, what is the DFU value for a standard water closet?
A.2 DFU
B.3 DFU
C.4 DFU
D.6 DFU
Explanation: Under the IPC, a standard water closet is 3 DFU. Ohio plumbers use IPC DFU values.
3Under the IPC, minimum building sewer with water closets is?
A.2 inches
B.3 inches
C.4 inches
D.6 inches
Explanation: Minimum building sewer is 4 inches when water closets are connected. Ohio follows IPC sewer sizing.
4Under the IPC, minimum vent pipe size is?
A.1 inch
B.1-1/4 inches
C.1-1/2 inches
D.2 inches
Explanation: No vent less than 1-1/4 inches under the IPC. Ohio follows IPC vent sizing.
5Under the IPC, max static water pressure in a building is?
A.60 psi
B.80 psi
C.100 psi
D.120 psi
Explanation: Max static pressure is 80 psi. PRV required above 80. Ohio follows IPC pressure limits.
6Under the IPC, high-hazard cross-connections require what backflow device?
A.AVB
B.Dual check
C.RPZ assembly
D.Hose bibb vacuum breaker
Explanation: RPZ required for high-hazard cross-connections. Ohio plumbers select devices by hazard level.
7Under the IPC, minimum trap seal depth is?
A.1 inch
B.2 inches
C.3 inches
D.4 inches
Explanation: Minimum trap seal is 2 inches, maximum 4 inches. Ohio plumbers maintain proper seals.
8Under the IPC, minimum lavatory trap size is?
A.1 inch
B.1-1/4 inches
C.1-1/2 inches
D.2 inches
Explanation: Minimum lavatory trap is 1-1/4 inches. Ohio follows IPC trap sizing.
9Under the IPC, minimum building water service is?
A.1/2 inch
B.3/4 inch
C.1 inch
D.1-1/4 inches
Explanation: Minimum building water service is 3/4 inch. Ohio plumbers size per IPC calculations.
10Under the IPC, what material is NOT approved for underground drainage?
A.Cast iron
B.PVC DWV
C.ABS DWV
D.Galvanized steel
Explanation: Galvanized steel corrodes underground. Cast iron, PVC, ABS are approved. Ohio follows IPC material rules.

About the OH Journeyman Plumber Exam

Ohio's journeyman plumber exam is administered by PSI on behalf of the Construction Industry Licensing Board (CILB). The exam covers the Ohio Plumbing Code, which is based on the IPC with state amendments. The exam has approximately 100 questions with a 3-hour time limit.

Exam sponsor: Ohio Construction Industry Licensing Board (PSI). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Questions

100 questions

Time Limit

3 hours

Passing Score

70%

Exam / Certification Fees

~$50 + $255 license

Exam sponsor website

Reported exam pass rate: ~55%. This describes exam candidates, not OpenExamPrep users or results from using our resources. Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

25%

Drainage, Waste & Vent Systems

Ohio Plumbing Code drainage pipe sizing, DFU calculations, slope requirements, cleanouts, and trap arm distances

20%

Venting Systems

Vent sizing, wet venting, AAVs, vent termination, and circuit venting per Ohio code

20%

Water Supply & Backflow Prevention

Water pipe sizing, WSFU calculations, backflow prevention, pressure regulation, and cross-connection control

15%

Gas Piping & Venting

Gas pipe sizing, BTUH calculations, pressure testing, combustion air, and appliance venting

20%

Fixtures, Materials & Code Administration

Fixture installation, clearances, materials, permits, inspections, and Ohio-specific amendments

Preparing for the OH Journeyman Plumber Exam

What You Need to Know

  • Passing score: 70%
  • Exam length: 100 questions
  • Time limit: 3 hours
  • Exam / certification fees: ~$50 + $255 license Official sources

Using Our Practice Resources

  • Work through all 298 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

OH Journeyman Plumber: Suggested Study Strategy

1Study IPC-based content — Ohio's Plumbing Code is based on the IPC with state amendments
2Learn Ohio-specific amendments that differ from the standard IPC
3Master IPC drainage and vent sizing tables for pipe sizing questions
4Review backflow prevention device selection and cross-connection control requirements
5Study gas pipe sizing and BTUH calculations for fuel gas questions
6Practice with timed exams — 100 questions in 3 hours requires good time management

Frequently Asked Questions

What plumbing code does Ohio use?

Ohio uses the Ohio Plumbing Code, which is based on the International Plumbing Code (IPC) with state-specific amendments. IPC study materials are applicable with attention to Ohio's amendments.

How many questions are on the Ohio plumber exam?

The Ohio journeyman plumber exam has approximately 100 questions with a 3-hour time limit. A 70% score is required to pass. The exam is administered by PSI.

How much does the Ohio plumber exam cost total?

The total cost includes approximately $50 for the PSI exam fee plus $255 for the license fee to the Ohio CILB. Total initial cost is approximately $305.

What experience is needed for Ohio journeyman plumber license?

Ohio requires documented experience as a plumbing apprentice under a licensed plumber. Contact the Ohio CILB for specific hour requirements and application procedures.