Title: Lay out and fabricate 90-degree one-way "Y" branch with curved throat and combination straight and curved heel.
Course: Sheet Metal II (13205-II) > Section: Performing Layout and Fabrication

Laying out and fabricating should include

- laying out lines at 90 degrees with a T-square
- cutting, notching, and forming required locks, bends, and connections
- assembling ductwork with locks formed on a lockformer machine.