A simple gas turbine is one without reheaters or regenerators.

• A. Starting Motors
• B. Combustors
• C. Regenerators
• D. Compressors

Answer: (C)

In a simple gas turbine, only the basic components are included: a compressor to pressurize the intake air, a combustor to burn fuel and raise the gas temperature, and a turbine to extract work from that hot gas. A starting motor is used to bring the machine up to speed. A regenerator, or recuperator, is an optional heat-exchange device that recovers some waste heat from the exhaust to preheat the incoming air, boosting efficiency but adding extra hardware and cost. Since a simple gas turbine does not include reheaters or regenerators, the component that would not be present is the regenerator.