100+ Free I-CAR Structural Practice Questions

It is the I-CAR role-based training and credentialing program for collision repair technicians who perform structural welding, sectioning, and joining on modern vehicles. Technicians progress through ProLevel 1, 2, and 3 with annual training and must hold the SWQT (steel) weld qualification and the AWQT (aluminum) qualification when working aluminum structures.

Yes. SWQT (Steel Welding Qualification Test) is required for any structural steel welding. AWQT (Aluminum Welding Qualification Test) is required for structural welding on aluminum-intensive vehicles such as the Ford F-150, Audi A8, and JLR models. Both tests are demonstrated weld evaluations, not multiple-choice tests.

The I-CAR Repairability Summit best practice is that parts with tensile strength over 600 MPa (ultra-high-strength steel) should only be replaced at factory seams unless the vehicle maker specifically recommends sectioning. UHSS and boron-alloyed press-hardened steel lose engineered strength when heated or sectioned in unauthorized locations, so the default for UHSS is full replacement.

No. Boron-alloyed press-hardened steel achieves its 1,500+ MPa tensile strength through quenching during manufacture. Heating it above approximately 1,100 degrees F reverses the martensitic structure and drastically reduces strength. I-CAR and vehicle makers prohibit heat-straightening boron-alloyed parts; they must be sectioned at OEM-specified locations or replaced at factory seams.

Weld bonding combines a two-part structural epoxy adhesive (such as 3M or Henkel) between the mating flanges with squeeze-type resistance spot welds or GMA plug welds at the joint. The adhesive carries shear load and seals against corrosion; the welds carry peel load. Many OEMs now specify weld bonding as the required joining method for structural panels.

Rivet bonding combines structural adhesive between the mating flanges with mechanical fasteners — typically self-piercing rivets (SPRs), blind rivets, or flow-drill screws — at OEM-specified pitch. It is the primary structural joining method on aluminum-intensive vehicles such as the Audi A8, Jaguar Land Rover models, and Ford F-150.

A three-dimensional electronic measuring system (such as Car-O-Liner, Chief Genesis, Spanesi Touch, Celette, or MatrixWand) is the modern standard. The system uses a probe arm, laser, or ultrasonic targets to capture length (X), width (Y), and height (Z) at hundreds of control points and compare them in real time against an OEM database. Baseline measurement before pulling and final measurement before corrosion protection are both required.

Before any cutting, grinding, or welding near an EV high-voltage battery, the technician must follow the OEM's HV-disable procedure (remove service disconnects, wait the specified discharge time, verify zero voltage with an insulated meter), wear Class 0 insulated gloves and arc-rated clothing, and typically remove the pack from the vehicle for the duration of welding, finishing, and oven curing. Damaged packs require isolation and OEM/manufacturer notification.

Aluminum and steel cross-contamination causes galvanic corrosion under paint, and fine aluminum dust mixed with iron oxide can produce a thermite reaction if ignited. Aluminum-intensive OEMs require physically segregated bays, dedicated tools, dust extraction, fire-rated aluminum-only waste containers, and curtain isolation. Aluminum GMA welding requires pulse-transfer mode equipment and pure-argon shielding.

Gold Class is the I-CAR shop-level recognition awarded when all required role representatives (Estimator/Damage Analyst, Non-Structural, Structural, and Refinish Technicians) have completed at least ProLevel 2 training and the shop maintains annual ongoing training. Many OEM certification programs and insurer DRP networks require Gold Class as a baseline.

I-CAR launched the Mixed Attachment Methods course for ProLevel 2 and ProLevel 3 Structural Technicians, consolidating rivet bonding, MAG welding, MIG brazing, steel sectioning, and squeeze-type resistance spot welding into a single hands-on certification. The course reflects the reality that modern OEM procedures call for multiple joining methods on the same body shell.