What are the major sections of a gas turbine engine?

The major sections of a gas turbine engine are crucial for its classification and understanding of how it operates. The correct answer lists the inlet duct, compressor, combustion section, turbine, exhaust, and accessory section, which reflects the complete architecture of a gas turbine engine.

The inlet duct is responsible for directing the incoming air into the compressor while minimizing drag and turbulence. The compressor then increases the pressure of the incoming air, making it denser before it enters the combustion chamber. In the combustion section, fuel is mixed with the high-pressure air, and this mixture is ignited to produce high-temperature gases. These gases are then expanded through the turbine, where they perform work by spinning the turbine blades. Finally, the exhaust section allows the gases to exit the engine, often contributing to thrust generation.

Additionally, the accessory section encompasses various components and systems that support the engine's operation, such as fuel pumps, oil pumps, and control systems, ensuring the engine runs efficiently and reliably.

This comprehensive view of the gas turbine engine's sections is essential for understanding how each part contributes to the overall function and efficiency of the engine, which is accurately captured in the option that mentions all these critical components.