Unitized Structural Body Repair FINAL EXAM PREP 2025/2026 ACCURATE QUESTIONS WITH CORRECT DETAILED ANSWERS || 100% GUARANTEED PASS <RECENT VERSION>

Unitized Structural Body Repair FINAL EXAM PREP 2025/2026 ACCURATE QUESTIONS WITH CORRECT DETAILED ANSWERS || 100% GUARANTEED PASS &lt;RECENT VERSION&gt; 1. Unibody - ANSWER Lightweight stamped sheet metal components that are welded to each other to create a single unit. 2. Space Frame - ANSWER Body panels can be made from plastic are steel. Steel may be Mild, Intermediate, or HSS. Panels may hide damage to frame or structure. 3. Crush Zones - ANSWER Structural components such as rails are designed to collapse and bend at specific points. 4. MIG Welding Wire (Electrode) - ANSWER AWS ER70S-6 AWS ER70S-7 5. AWS - ANSWER American Welding Society Standard 6. E - ANSWER Type of standard-ELECTRODE 7. R - ANSWER Electrode Type-ROD (MIG Wire) 8. 70 - ANSWER Tensile strength Expresses in Thousands of PSI (70,000) 9. S - ANSWER Electrode Type-SOLID 10. 6 - ANSWER Chemical Make-up / Higher the number, better wire 11. .023 Wire - ANSWER Most commonly recommended wire size 12. Flux Cored Wires - ANSWER Recommended for steel thicker than 18 Gauge, Galvanized Steel, but burn through on 20 Gauge and thinner steel. 13. Shielding Gases - ANSWER Recommend on steel. Mixture of argon and carbon dioxide. (Aluminum you use pure argon) 14. Weld Bond Adhesives - ANSWER Supplements the strength of spot welded joints. Applied to flanges of doors, rockers, A Pillar, and roof. Catalyzed material that is applied between the MIG plug weld holes just before the pats are assembled. (Some are used to increase structural strength with fewer welds) 15. Structural Foams - ANSWER Contributes to structural strength and is a two part urethane foam. It is injected into closed sections like pillars and seal belt anchor members to increase strength and torsional rigidity. (NOT for sound deafening purposes) FLAMMABLE and GENERATE GASSES. Must be reinstalled after priming of the closed sections with epoxy or self etching primers. 16. Non Catalyzed Urethane - ANSWER Primarily used for sound deafening. 17. Torsional Rigidity - ANSWER The ratio of the torque applied about the centroidal axis of a bar at one end of the bar to the resulting torsional angle, when the other end is held fixed. 18. Replacing Structural Components - ANSWER Pull structure into proper alignment. Set up MULTIPLE PULLS to minimize tearing of the metal and reverse damage sequences. (Single hard pulls work with conventional frames but are not effective with unibodies) 19. Anchoring - ANSWER Procedure for vehicles without vertical rocker pinchwelds. Upper body ____ insures pulling forces are not transmitted into undamaged portions of the structure. Also allows proper alignment to the adjacent panels that are not damaged, and prevents the possibility of tearing the repairable parts or causing further damage. 20. Tools Used to cut out Factory Compression Spot Welds - ANSWER Plasma Arc Cutters, Spot Weld Cutters, Compound or Stepped Drill Bits, Abrasive Wheels and Bits, Air Chisels, Oxyacetylene Torches. 21. Plasma Arc Cutters - ANSWER Quick. Molten splatter that can damage glass, paint and upholstery. Also cut through both layers of metal--NOT DESIRABLE. 22. Spot Weld Cutters - ANSWER Work like a hole saw. Slower than drills or plasma cutters, but LEAVES BASE METAL INTACT.