This business/management problem is solved step by step below, with detailed explanations to help you understand the method and arrive at the correct answer.
ScanSolve AI Answer
8. Four types of joints used in sheet metal work are: Lap joint Seam joint (e.g., grooved seam, Pittsburgh lock seam) Hemmed edge joint Corner joint (e.g., single hemmed, double hemmed) 9. Two safety precautions when working with sheet metal tools are: Always wear safety gloves* to protect hands from sharp edges. Ensure tools are sharp and in good condition* to prevent slipping and accidents. 10. Marking out in fabrication is the process of transferring the design or dimensions from a drawing onto the workpiece material, indicating where to cut, bend, or drill. 11. The function of a bending machine is to form or shape sheet metal by applying force to create specific angles, curves, or folds. 12. Three types of files used in metal work are: Flat file Half-round file Round file 13. Two advantages of using sheet metal in fabrication are: It allows for the creation of lightweight yet strong structures*. It is versatile* and can be easily cut, bent, and formed into various shapes. 14. Rivets are permanent mechanical fasteners consisting of a cylindrical shaft with a head, used to join two or more pieces of material by deforming the tail end to create a second head. 15. Two methods of joining sheet metal other than riveting are: Welding* (e.g., spot welding, MIG welding) Soldering or Brazing* 16. The purpose of annealing in sheet metal work is to soften the metal, relieve internal stresses, and improve its ductility and workability, making it easier to form without cracking. 17. Two causes of corrosion in sheet metals are: Exposure to moisture or water*, especially in the presence of oxygen. Contact with acids, salts, or other corrosive chemicals*. 18. Shearing in metal fabrication is the process of cutting sheet metal using two blades, one fixed and one moving, to separate the material without forming chips or using heat. 19. Two measuring tools used in sheet metal work are: Steel rule* (or measuring tape) Try square* (for checking 90-degree angles)