Year 2 Exam Study Guide — master what the exam actually tests, concept by concept.
Engine displacement, gear ratios, hydraulic pressure, electrical resistance, and fuel delivery rates all require calculation. These questions test your mechanical math: knowing which formula to apply, what units to use, and how to check your work.
Speed-density: vacuum-responsive, stable; alpha-N: responsive, direct. On the job, a solid grasp of this concept means faster decisions, fewer errors, and work that passes inspection the first time.
Ignition: older = points (manual adjust), modern = electronic (computer-controlled). Memorize this formula and practise substituting values — exam questions often give you three variables and ask you to solve for the fourth.
older = points (manual adjust), modern = electronic (computer-c
Balancing: wheel weights reduce vibration, extend tire life. On the job, a solid grasp of this concept means faster decisions, fewer errors, and work that passes inspection the first time.
Suspension tuning: preload (load-sensitive), damping (speed-sensitive) optimizes handling. On the job, a solid grasp of this concept means faster decisions, fewer errors, and work that passes inspection the first time.
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.
Carburetor stages: pilot (0-1/4 throttle), needle (1/4-3/4), main (3/4-full); air screw trims. On the job, a solid grasp of this concept means faster decisions, fewer errors, and work that passes inspection the first time.
2-stroke: premix (manual) or oil pump injection; oil burns with fuel (no crankcase sump). On the job, a solid grasp of this concept means faster decisions, fewer errors, and work that passes inspection the first time.
4-stroke: sump holds oil; pump circulates to bearings; filter traps contaminants. On the job, a solid grasp of this concept means faster decisions, fewer errors, and work that passes inspection the first time.
Chain: efficient, adjustable; belt: smooth, quiet; shaft: sealed, durable. Material selection directly affects performance, code compliance, and longevity. Using the wrong type can fail an inspection or create a hazard down the line.
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.
Chain care: clean, lube, adjust tension 1/2"; extend life significantly. On the job, a solid grasp of this concept means faster decisions, fewer errors, and work that passes inspection the first time.
Pads: replace at ~2mm thickness; inspect rotors for scoring/warp. On the job, a solid grasp of this concept means faster decisions, fewer errors, and work that passes inspection the first time.
All 10 exam concepts from this guide — test your recall before you sit the exam.