100+ Free KY Plumber Practice Questions
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Key Facts: KY Plumber Exam
70%
Passing Score
Kentucky Plumbing Division
~80
Exam Questions
PSI exam format
3 hrs
Time Limit
PSI
SPC/IPC
Code Base
Kentucky adoption
The Kentucky journeyman plumber exam is administered through PSI and overseen by the KY Department of Housing / Plumbing Division. The exam has approximately 80 multiple-choice questions with a 3-hour time limit, requiring 70% to pass. Kentucky uses the State Plumbing Code (SPC) based on the IPC. The exam is open-book, so candidates should bring a clean bound copy of the Kentucky SPC.
About the KY Plumber Exam
Kentucky journeyman plumber licensing exam administered by PSI and overseen by the Department of Housing, Buildings and Construction / Plumbing Division. Based on the Kentucky State Plumbing Code (SPC, derived from the International Plumbing Code). Covers drainage systems, water supply, venting, fixtures and appliances, gas piping, materials, and code administration. Approximately 80 multiple-choice questions with a 3-hour time limit.
Questions
80 scored questions
Time Limit
3 hours
Passing Score
70%
Exam Fee
$60 (Kentucky Department of Housing, Buildings and Construction / Plumbing Division)
KY Plumber Exam Content Outline
Drainage Systems
Drain pipe sizing, fixture units (DFU), slope requirements, cleanouts, building sewers, indirect waste, and special drainage systems per Kentucky SPC
Water Supply Systems
Water pipe sizing, WSFU calculations, backflow prevention, pressure regulation, water heaters, cross-connection control, and potable water protection
Venting Systems
Vent sizing, wet venting, circuit venting, air admittance valves, vent termination, combination waste and vent, and trap seal protection
Fixtures & Appliances
Fixture installation requirements, clearances, accessible fixtures, commercial fixtures, water closets, lavatories, showers, and bathtubs
Gas Piping
Gas pipe sizing, BTU calculations, appliance venting, pressure testing, combustion air, and fuel gas code compliance
Code Administration & Materials
Permits, inspections, plan review, approved materials, pipe materials, joint methods, hangers and supports, and Kentucky-specific amendments
How to Pass the KY Plumber Exam
What You Need to Know
- Passing score: 70%
- Exam length: 80 questions
- Time limit: 3 hours
- Exam fee: $60
Keys to Passing
- Complete 500+ practice questions
- Score 80%+ consistently before scheduling
- Focus on highest-weighted sections
- Use our AI tutor for tough concepts
KY Plumber Study Tips from Top Performers
Frequently Asked Questions
How hard is the Kentucky journeyman plumber exam?
The Kentucky journeyman plumber exam is moderately challenging with an estimated 55-65% pass rate. The exam has approximately 80 questions based on the Kentucky State Plumbing Code (derived from IPC) and requires 70% to pass. Strong knowledge of pipe sizing, DFU calculations, and venting requirements is essential.
What plumbing code does Kentucky use?
Kentucky uses the State Plumbing Code (SPC), which is based on the International Plumbing Code (IPC) with Kentucky-specific amendments. A clean, bound copy of the Kentucky SPC is typically allowed as a reference during the PSI-administered exam.
How much does the Kentucky plumber exam cost?
The Kentucky journeyman plumber exam fee is approximately $60 for the PSI exam. Additional costs may include the application fee and Kentucky SPC code book. Check with the KY Department of Housing / Plumbing Division for the most current fee schedule.
What are the experience requirements for Kentucky journeyman plumber?
Kentucky typically requires completion of a plumbing apprenticeship or equivalent experience under a licensed plumber. Contact the Kentucky Department of Housing, Buildings and Construction / Plumbing Division for detailed eligibility requirements and approved experience documentation.