Which of the following are primary components of a turbojet engine?

The primary components of a turbojet engine include the compressor, combustion chamber, turbine, and nozzle. Each of these elements plays a critical role in the operation and efficiency of the engine.

The compressor is responsible for increasing the pressure of the incoming air before it enters the combustion chamber. By compressing the air, it ensures that a sufficient amount of oxygen is available for combustion, which in turn enhances the overall efficiency and performance of the engine.

The combustion chamber is where the fuel and compressed air mix and ignite. This process generates high-temperature, high-pressure gases that expand rapidly, which is essential for producing thrust.

The turbine extracts energy from these high-energy gases. It converts the thermal energy generated in the combustion chamber into mechanical energy, which is then used to drive the compressor. This extraction of energy is critical for maintaining the engine's functionality.

Finally, the nozzle is the component that allows the high-speed exhaust gases to exit the engine. By narrowing down at the exit, the nozzle converts the pressure of the exhaust gases into kinetic energy, producing thrust in the process.

The other choices include components that are not primary to the basic turbojet design or misrepresent the roles they play in a turbojet engine. For instance, options containing the fuel control unit