Gas Turbine Engines Practice Test – Complete Exam Prep 2026

The thermodynamic cycle associated with turbine engines that produce thrust is known as the Brayton cycle. This cycle involves the processes of compression, combustion, and expansion in a continuous flow system, which is characteristic of gas turbine engines.

In the Brayton cycle, air is drawn into the engine and compressed, which increases its pressure and temperature. This compressed air then mixes with fuel and is ignited in the combustion chamber. The high-temperature, high-pressure gases produced from this combustion process then expand through the turbine, converting thermal energy into mechanical work. This work is what drives the compressor and also produces thrust as the gases exit the turbine at high velocity through the exhaust.

This continuous cycle allows for efficient operation in jet engines, as they can produce a large amount of thrust relative to their size and weight, making them ideal for aviation applications. Understanding the Brayton cycle is essential for grasping the operational principles of gas turbine engines, as it integrates thermodynamic concepts with practical engineering applications.