Year 2 Exam Study Guide — master what the exam actually tests, concept by concept.
Mechanical trades involve high pressures, extreme temperatures, rotating machinery, and chemical hazards. The exam tests whether you can identify risks before they become incidents — covering everything from confined space entry to pressure testing safety.
Die: punch (male), die (female), stripper (eject), guide pins (alignment). Safety regulations exist because the consequences of ignoring them are severe — injury, death, or legal liability. Know these requirements the way you know your own name.
Pipes, valves, fittings, and mechanical components have ratings, classifications, and compatibility requirements. Using the wrong material can fail an inspection, void a warranty, or create a dangerous condition. This section covers proper material selection and equipment knowledge.
Spring-back: bend 5-10% more than target; material rebounds partially after release. Material selection directly affects performance, code compliance, and longevity. Using the wrong type can fail an inspection or create a hazard down the line.
Heat treatment: D2 (cold work, less precise), H13 (hot work, more precise, less brittle). On the job, a solid grasp of this concept means faster decisions, fewer errors, and work that passes inspection the first time.
EDM: spark erodes material; creates shapes impossible with conventional tools. Material selection directly affects performance, code compliance, and longevity. Using the wrong type can fail an inspection or create a hazard down the line.
Procedure matters in mechanical work. The order of operations, the proper testing sequence, the way you commission a system — doing it right the first time means no leaks, no callbacks, and no danger. This section covers procedures as they appear on the exam and as they're done on the job.
Clearance: 5-10% of stock thickness per side; prevents sharp edges, ensures clean cut. On the job, a solid grasp of this concept means faster decisions, fewer errors, and work that passes inspection the first time.
All 5 exam concepts from this guide — test your recall before you sit the exam.