Plumbing (C-37) Water supply systems, drainage principles, and fixture installation form the core of C-37. You’ll also encounter code compliance requirements, pipe sizing calculations, and troubleshooting common leaks. The exam spans both residential and commercial applications, testing depth across venting systems, water heater installations, and safety protocols that protect both structure and occupants.
| Exam Name | Plumbing |
| Exam Code | C-37 |
| Format | PDF & Practice Test Engine |
| Target Year | 2026 Updated |
| Features | 100% Verified Q&As |
