MITO Heavy Auto L4 study guide
MITO Heavy Auto L4 · Work through your exam, one topic at a time.
The qualification is aimed at people already working on heavy vehicles - trucks, buses and related commercial equipment - who want their on-job learning recognised, and at employers who want to upskill staff in the workplace. The assessment covers two broad domains. Automotive (50%) tests heavy-vehicle systems: engine, driveline, braking, steering and suspension, electrical and diagnostics, plus safe workshop practice. Commercial road transport (50%) tests the operating context: vehicle inspection and roadworthiness, loading and load security, driver and operator compliance, and maintenance planning for a fleet. Topics on this exam: Automotive and Commercial road transport. The MITO Heavy Auto L4 study guide has 2 sections and about 823 words.
01Automotive: Heavy Vehicle Systems, Diagnosis and Repair
Domain 1 - Automotive. This section tests the heavy-vehicle workshop knowledge behind safe, compliant repairs: diesel engine operation and fuel systems, air brakes, driveline and suspension, electrical and hydraulic fault-finding, and the inspection consequences of each repair. Questions often give a symptom and ask for the most likely cause, the correct test sequence, or the safety/legal result. Diesel is compression ignition: air is inducted, compressed to a high pressure and temperature, and fuel is injected near top dead centre.
406 words, about 2 min02Commercial Road Transport: Compliance, Loads and Driver Duties
Domain 2 - Commercial road transport. This section tests the operational and legal side of moving freight: driver licence classes, work time and logbooks, load restraint, mass and dimension limits, road user charges, certificates of fitness and pre-trip inspection. Questions often describe a planned trip or load and ask whether it is legal, what document is missing, or which limit is breached. New Zealand heavy licence classes progress from Class 2 (rigid up to 18,000 kg GLW and lighter combinations) through Class 3 (combinations up to 25,000 kg GCW), Class 4 (heavy rigid over 18,000 kg) and Class 5 (combinations over 25,000 kg GCW).
417 words, about 2 min