
| Content Areas | # of Questions |
|---|---|
| Drain, Waste & Vent Systems, including Pipe Sizing | 10 |
| Water Supply & Distribution, including Pipe Sizing | 10 |
| Backflow Prevention | 5 |
| Storm & Roof Drainage | 3 |
| Fixtures & Water Heaters | 10 |
| Excavation, General Knowledge & Regulations | 18 |
| Fuel Gas Systems, including Pipe Sizing | 5 |
| Safety – OSHA | 3 |
| Isometrics | 6 |
| Sewer | 6 |
| Plumbing Math | 4 |
Design, installation, repair, maintenance, and extension of any plumbing system, including drains, waste, sanitary vents, water supply systems, fixtures, and gas systems.
The state of Hawaii requires that you take and pass a written Business and Law Exam exam for this trade.
We advise that you NOT purchase the PSI published book shown in the exam bulletin. We recommend a better, up-to-date allternative on our Study Guides purchase page linked below.
The button below will take you to the details about our 800 question Study Guides and provide you with a FREE "Reference Navigator" document that allows you to more accutately decide which sections of the federal code applies to your exam. PSI does not provide this information.