AMP - Aviation Maintenance Technician Powerplant Practice Exam

Which of the following components directly contributes to increasing the air pressure in a turbine engine?

1. The turbine

2. The combustion chamber

3. The compressor

4. The exhaust

The correct answer is: The compressor

The component that directly contributes to increasing the air pressure in a turbine engine is the compressor. The primary function of the compressor is to intake atmospheric air and compress it, thereby raising its pressure and temperature before it enters the combustion chamber. This process is crucial because higher pressure and temperature air allows for more efficient combustion of fuel, leading to increased thrust in the engine. The compressor operates using a series of rotating and stationary blades that progressively compress the air as it flows through the engine. This increase in air pressure is essential for the performance of the turbine engine and significantly influences its overall efficiency and power output. While other components such as the combustion chamber, turbine, and exhaust play vital roles in the engine’s operation, they do not directly contribute to the increase in air pressure. The combustion chamber is where fuel mixes with the compressed air for combustion, the turbine extracts energy from the high-temperature, high-pressure gas generated during combustion to drive the compressor, and the exhaust is where the gases exit the engine after passing through the turbine. Each of these components is integral to the overall function of the engine but does not serve to increase air pressure like the compressor does.