Which turbine component injects fuel into the combustion area?

• A. Fuel pump
• B. Fuel metering valve
• C. Fuel spray nozzles
• D. Spray ring

Answer: (C)

Fuel spray nozzles are the component that injects fuel into the combustion area. They take high-pressure fuel from the fuel system and atomize it into a fine mist as it exits the nozzle tips, which mixes with the incoming air for efficient, stable combustion. The spray pattern and angle help ensure good mixing and flame stabilization. The fuel pump provides the pressure and the metering valve sets how much fuel is delivered, but neither of these directly injects fuel into the chamber. The spray ring is part of the assembly that distributes the fuel to the nozzles, but the actual injection into the combustion area occurs at the nozzle tips.