Gas Turbine Technician - Third Class

ASOPE® offers an opportunity to obtain a Gas Turbine Technician – Third Class license. A list of qualifications that are required to receive your Gas Turbine Techncian - Third Class license are outlined below. Requirements include being the minimum age of 19 years old, a high school diploma/GED or equivalent, and one year Simple Cycle CT operations and/or maintenance experience.

If all qualifications are met, you will be required to schedule an exam. The exam consists of a wide range of curriculum including, but not limited to, combine cycle, centrifugal flow, combustion arrangements, oil systems, cooling systems, purch systems, and many more. Upon completion of the Gas Turbine Technician - Third Class license exam, an ASOPE® representative will notify of a "pass" or "fail" status. If failed, you will be offered additional opportunities to retake the exam. Please review our Failed Test Procedures to learn more.

If you have any questions or concerns regarding the Gas Turbine Technician - Third Class license, please contact the ASOPE® national office.


  • Minimum age - 19
  • Education - High School Diploma GED or equivalent. Completion of the GPILearn Online Training prescribed courses (see links page for course description)
  • Learning Interactive CD-Rom or Web-based Training or equivalent plant operations training
  • Experience - One Year Simple Cycle CT operations and/or maintenance
  • Examination - Written (Oral or Practical when necessary)

Curriculum at the Minimum:

  • Gas Turbine Cycles
  • Single and Two Shaft Arrangement
  • Exhaust Heat Recovery
  • Combined Cycle
  • Compressors
  • Axial Flow
  • Centrifugal Flow
  • Compressor Stall at Startup
  • Combustion Arrangements
  • Turbine Construction
  • Blade Cooling
  • Turbine Efficiency
  • Exhaust Frame Assembly
  • Gas Turbine Starting Devices
  • Oil Systems
  • Combustion System
  • Fuel Systems and Type Combustors Nozzles / Burners
  • Oil, Gas and Air Systems
  • Cooling Systems
  • Sealing Systems
  • Purge Systems
  • Primary Air Inlet System
  • Environmental Limits
  • Basic Electricity
  • Basic Refrigeration
  • Turbine and Generator Safety Devices
  • General Plant Safety
  • Environmental Concerns