The exam content shown below only lists main category headings. Please consult the PSI exam bulletin for Oklahoma trades from the button below for more detailed information about subject sub-topics.
| Topics | Sub-topics | # of Questions |
|---|---|---|
| General Plumbing Knowledge & Regulations | 12 | 10 |
| Piping, Valves & Control Valves | 12 | 8 |
| Fixtures & Equipment | 2 | 8 |
| Water Supply | 3 | 10 |
| Drains & Sewers | 7 | 10 |
| Vents | 2 | 13 |
| Traps, Interceptors, Indirect & Special Waste | 3 | 5 |
| Isometric Analysis | 1 | 7 |
| Fuel Gas | 18 | 10 |
| Safety | 17 | 4 |
In addition to the trade-specific examination, you must pass the Plumbing Business & Law Exam offered by PSI to complete your Oklahoma licensing requirements.
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