C-20 Heating, Ventilating and Air Conditioning
Here is the table of contents for our online practice exam.
| # | Title | Questions |
| 1 | Contracts | 20 |
| 2 | Cost Estimating, Specifications | 20 |
| 3 | Hazardous Substances, Asbestos | 20 |
| 4 | HVAC Part 1 | 35 |
| 5 | HVAC Part 2 | 40 |
| 6 | HVAC Part 3 | 40 |
| 7 | HVAC Part 4 | 40 |
| 8 | Installation, Ductwork | 19 |
| 9 | Installation, Troubleshooting | 40 |
| 10 | Mathematics, Calculations | 28 |
| 11 | Safety | 45 |
| Total = | 347 | |