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 Knowledge | 6 | 12 |
| Duct Sizing, Design, Hanging & Support Requirements | 3 | 4 |
| Duct Fabrication and Installation | 4 | 10 |
| Plenums | — | 4 |
| Appliance Venting & Combustion Air | 4 | 5 |
| Ventilation & Exhaust Devices | 7 | 12 |
| Safety | 9 | 3 |
In addition to the trade-specific examination, you must pass the Mechanical Business & Law Exam offered by PSI to complete your Oklahoma licensing requirements.
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