Which of the following are symptoms of a compressor stall in a turbine engine?

Which of the following are symptoms of a compressor stall in a turbine engine?

• A. High altitude and reduced airspeed
• B. Low torque and higher fuel consumption
• C. Loud explosive bangs and higher EGT or ITT readings
• D. Stable engine performance

Answer: (C)

A compressor stall in a turbine engine is characterized by specific changes in engine behavior and performance. The correct answer highlights that symptoms can include a noticeable noise, often described as loud explosive bangs, which occurs due to the rapid disruption of airflow through the compressor stages. This disruption can cause fluctuations and abnormal pressures within the engine, leading to spikes in Exhaust Gas Temperature (EGT) or Interstage Turbine Temperature (ITT) readings as the engine struggles to maintain balanced performance. Understanding compressor stalls involves recognizing that the condition results from an inability of the compressor to maintain proper airflow and pressure ratios, which is not found in stable engine performance. During a stall, rather than exhibiting stable performance, the engine experiences instability that manifests in various audible and thermal signals, confirming the significance of monitoring these parameters for safe operation.

A compressor stall in a turbine engine is characterized by specific changes in engine behavior and performance. The correct answer highlights that symptoms can include a noticeable noise, often described as loud explosive bangs, which occurs due to the rapid disruption of airflow through the compressor stages. This disruption can cause fluctuations and abnormal pressures within the engine, leading to spikes in Exhaust Gas Temperature (EGT) or Interstage Turbine Temperature (ITT) readings as the engine struggles to maintain balanced performance.

Understanding compressor stalls involves recognizing that the condition results from an inability of the compressor to maintain proper airflow and pressure ratios, which is not found in stable engine performance. During a stall, rather than exhibiting stable performance, the engine experiences instability that manifests in various audible and thermal signals, confirming the significance of monitoring these parameters for safe operation.