Which statement is correct regarding the Clecos and rivets?

Clecos must be removed before riveting because they serve as temporary fasteners used to hold pieces of metal or material together during the assembly process. They are designed to allow for easy repositioning and alignment of the components prior to the final fastening with rivets. Once the pieces are correctly aligned and ready for permanent attachment, the Clecos are removed, and rivets are inserted into the pre-drilled holes, providing the necessary strength and structural integrity to the assembly.

Using Clecos properly is critical in ensuring that the final product meets safety and design specifications. They help in avoiding misalignment during the riveting process, which could lead to structural issues in the finished aerospace component. Thus, understanding the function and application of Clecos and rivets is essential for an aerospace assembly mechanic.