American Society of Power Engineers, Inc.

Establishing National
Standards for Power Engineers.

Diesel Plant Operating Engineer Third Class


  • Minimum age - Adult
  • Education - High School Diploma or GED or equivalent.
  • Experience - Two years operations or maintenance of marine or stationary diesel engine plants.
  • Examination - Written (Oral or Practical when necessary)

Curriculum at the Minimum:

  • Basic Thermodynamics
  • Basic Measuring Instruments
  • Fuels
  • Operating Fundamentals
  • Two-Stroke and Four-Stroke Cycles
  • High Speed Engines
  • Low Speed Engines
  • Engine Construction and Layout
  • Diesel Engine Components
  • Valve Arrangements
  • Typical Operating Efficiencies
  • General Industrial Safety
  • Basic Electrical Theory
  • Environmental Effects