100+ Free HI Plumber Practice Questions
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Key Facts: HI Plumber Exam
70%
Passing Score
Hawaii Board of Electricians and Plumbers
100
Questions
3 hours limit
~$330
Exam Fee
PSI
UPC
Code Base
Hawaii adoption
Hawaii's journeyman plumber exam is based on the UPC (Hawaii State Plumbing Code) and administered by PSI. Hawaii uses the UPC rather than the IPC. The Hawaii State Plumbing Code includes amendments for tropical climate, volcanic soil conditions, and island-specific water systems. The exam requires 70% to pass and tests drainage, water supply, venting, gas piping, and fixture knowledge.
About the HI Plumber Exam
Hawaii journeyman plumber exam administered by PSI under the Board of Electricians and Plumbers. Based on the Uniform Plumbing Code (UPC) with Hawaii State amendments. Tests drainage, water supply, venting, gas piping, and island-specific requirements.
Questions
100 scored questions
Time Limit
3 hours
Passing Score
70%
Exam Fee
~$330 (Hawaii Board of Electricians and Plumbers)
HI Plumber Exam Content Outline
Drainage & Waste Systems
Drain sizing, DFU calculations, slope requirements, cleanouts per UPC
Water Supply & Distribution
Pipe sizing, backflow prevention, water heaters, pressure regulation per UPC
Venting Systems
Vent sizing, wet venting, AAVs, vent termination, circuit venting per UPC
Gas Piping
Gas pipe sizing, appliance venting, pressure testing, BTU calculations per IFGC
Fixtures, Materials & Hawaii Code
Fixture installation, materials, joints, permits, inspections, and Hawaii-specific requirements
How to Pass the HI Plumber Exam
What You Need to Know
- Passing score: 70%
- Exam length: 100 questions
- Time limit: 3 hours
- Exam fee: ~$330
Keys to Passing
- Complete 500+ practice questions
- Score 80%+ consistently before scheduling
- Focus on highest-weighted sections
- Use our AI tutor for tough concepts
HI Plumber Study Tips from Top Performers
Frequently Asked Questions
What code does Hawaii use for the plumber exam?
Hawaii uses the UPC (Hawaii State Plumbing Code). The exam covers drainage, venting, water supply, gas piping, and fixture requirements as adopted by the state.
Who administers the Hawaii plumber exam?
The exam is administered by PSI under the Hawaii Board of Electricians and Plumbers.
How many questions are on the Hawaii plumber exam?
The Hawaii plumber exam has approximately 100 questions with a 3 hours time limit. A score of 70% is required to pass.
Is the HI plumber exam open book?
Most PSI-administered plumber exams allow a bound copy of the adopted code. Check with the Hawaii Board of Electricians and Plumbers for approved reference materials.