Heavy Duty Equipment Technician (421A)
Service and repair diesel engines, hydraulics, and systems on heavy construction and industrial equipment.
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A Red Seal endorsement is a seal on your provincial or territorial trade certificate. It shows you have the knowledge and skills to practice your trade across Canada — earned by passing the interprovincial Red Seal exam.
What this trade covers
Service and repair diesel engines, hydraulics, and systems on heavy construction and industrial equipment.
Exam format
- • 120 multiple-choice questions
- • 4-hour time limit
- • 70% required to pass
- • Closed-book
- • 135 questions, 4 hours, 70% to pass
- • Questions align with the Red Seal Occupational Standard (RSOS)
Exam blueprint (RSOS)
Questions are distributed across major work activities defined in the Red Seal Occupational Standard — the same breakdown used on the official exam.
Performs common occupational skills
Services, diagnoses and repairs engines and supporting systems
Services, diagnoses and repairs steering, suspension, brake and undercarriage systems, and wheel assemblies
Services, diagnoses and repairs electrical and electronic systems
Services, diagnoses and repairs drivetrain systems
Services, diagnoses and repairs environmental control systems
Services, diagnoses and repairs hydraulic, hydrostatic and pneumatic systems
Services, diagnoses and repairs structural components, operator stations, attachments and accessories
Services, diagnoses and repairs hybrid and all-electric equipment
Official Red Seal resources
Source material from the Red Seal Program — administered by the Canadian Council of Directors of Apprenticeship (CCDA).