NCCER Parallel Line Development (04105) Sheet metal fabricators working in HVAC and ductwork use parallel line development daily to calculate layout patterns for cylindrical and rectangular ducts. This exam covers geometric principles, pattern drafting, and material cutting techniques essential for transitioning flat stock into three-dimensional components without waste or misalignment.
| Exam Name | NCCER Parallel Line Development |
| Exam Code | 04105 |
| Format | PDF & Practice Test Engine |
| Target Year | 2026 Updated |
| Features | 100% Verified Q&As |
