Year 2 Exam Study Guide — master what the exam actually tests, concept by concept.
Vehicle systems use a wide range of specialty materials, fluids, and components that must meet OEM specifications. This section covers proper tool selection, component identification, and the material properties that determine service intervals and replacement requirements.
Squeeze welding: portable unit clamps, applies current; useful for door panels. Material selection directly affects performance, code compliance, and longevity. Using the wrong type can fail an inspection or create a hazard down the line.
Panel fit: gaps consistent, panels flush, aligned; symmetry check across vehicle. On the job, a solid grasp of this concept means faster decisions, fewer errors, and work that passes inspection the first time.
Diagnostic and repair procedures are systematic — skip a step and you'll miss the root cause. This section covers the proper approach to vehicle diagnosis, the sequence of mechanical repairs, and the testing methods that confirm a fix actually fixed the problem.
Straightening: anchor frame, pull systematically using hydraulic rams, verify with measuring. On the job, a solid grasp of this concept means faster decisions, fewer errors, and work that passes inspection the first time.
Unibody: structural, complex welding; body-on-frame: separate frame, easier repairs. On the job, a solid grasp of this concept means faster decisions, fewer errors, and work that passes inspection the first time.
Weld primer: sacrificial protection; applied post-weld before covering/paint. Knowing what each component does — not just what it is — helps you diagnose failures, specify replacements, and explain your work to inspectors and clients.
All 5 exam concepts from this guide — test your recall before you sit the exam.