What section provides proper mixing of the fuel and efficient burning of the gases?

• A. Diffuser section and combustion section
• B. Combustion section and compressor section
• C. Combustion section only
• D. Combustor and diffuser

Answer: (C)

The main concept is where fuel and air mix and the mixture is burned efficiently. This happens in the combustion section, where fuel is injected and atomized into the incoming air, and the flame is sustained to burn the mixture. The diffuser simply slows and raises the pressure of the air before it enters the compressor, but it does not mix fuel with air or burn the gases. The compressor raises pressure but does not burn fuel. So the combustion section alone is the correct choice because it’s the part designed for proper fuel–air mixing and efficient combustion.