What is one characteristic of the combustion liner in the engine?

• A. It prevents vibration
• B. It supports airflow direction
• C. It contains combustion pressure
• D. It cools the combustion process

Answer: (C)

The combustion liner in an engine is designed to contain combustion pressure, which is a critical function for maintaining the engine's efficiency and safety. When fuel mixes with air and ignites, the resulting combustion process generates high-pressure gases. The combustion liner's primary role is to withstand these pressures and ensure that the combustion process occurs within a controlled environment. By containing combustion pressure, the liner helps to optimize the engine's performance and prevent any leaks of hot gases, which could lead to dangerous conditions or decreased efficiency. This characteristic is essential for the proper functioning of the engine and contributes to its overall reliability.

While other components might deal with aspects like vibration, airflow, or cooling, those functions are not the primary role of the combustion liner. The focus remains on maintaining the integrity of the combustion process by effectively containing the pressures generated.