APU (Auxiliary Power Unit)

Term from Truck Driving industry explained for recruiters

An APU (Auxiliary Power Unit) is a device installed on trucks that provides power for heating, cooling, and electrical needs when the main engine is turned off. It's like a small generator that helps truck drivers stay comfortable during rest periods without keeping the main truck engine running. This is important because many states have laws against idle running of truck engines, and APUs help save fuel costs. When you see this term on a resume, it usually means the driver understands how to operate and maintain these units, which shows they care about fuel efficiency and following regulations.

Examples in Resumes

Operated trucks equipped with APU systems to reduce fuel consumption and idle time

Maintained and troubleshot APU and Auxiliary Power Unit systems during long-haul routes

Achieved 30% fuel savings using APU technology during mandatory rest periods

Typical job title: "Truck Drivers"

Also try searching for:

CDL Driver Long Haul Driver OTR Driver Commercial Truck Driver Tractor Trailer Driver

Example Interview Questions

Experienced Driver Questions

Q: How do you manage APU maintenance to ensure reliable operation during long trips?

Expected Answer: Should explain regular inspection routines, basic maintenance schedules, and understanding when professional service is needed. Should mention checking fuel levels, filters, and basic troubleshooting.

Q: How has using an APU helped you improve fuel efficiency?

Expected Answer: Should discuss practical experience with fuel savings, understanding of idle regulations, and how they plan rest stops around APU usage.

Mid-Level Driver Questions

Q: What are the main benefits of using an APU?

Expected Answer: Should mention fuel savings, compliance with anti-idling laws, cabin comfort during rest periods, and extended engine life.

Q: What do you do if your APU stops working during a rest period?

Expected Answer: Should demonstrate knowledge of backup procedures, basic troubleshooting steps, and when to contact maintenance support.

Entry-Level Driver Questions

Q: Can you explain what an APU is and when you use it?

Expected Answer: Should be able to explain that it's a power unit for rest periods, provides heating/cooling/electricity without running the main engine.

Q: How do you start and stop an APU correctly?

Expected Answer: Should know basic operation procedures, including proper startup/shutdown sequence and safety checks.

Experience Level Indicators

Junior (0-1 years)

  • Basic APU operation
  • Understanding of anti-idling rules
  • Basic maintenance checks
  • Proper startup and shutdown procedures

Mid (1-3 years)

  • Efficient APU usage for fuel savings
  • Routine maintenance procedures
  • Basic troubleshooting
  • Understanding of optimal rest period planning

Senior (3+ years)

  • Advanced APU maintenance knowledge
  • Fuel efficiency optimization
  • Training other drivers on APU usage
  • Complex troubleshooting abilities

Red Flags to Watch For

  • No knowledge of basic APU operation
  • History of excessive fuel consumption
  • Unfamiliarity with anti-idling regulations
  • Poor maintenance record keeping