Which engine instrument is most likely to show an elevated reading if the turbine wheel has damage?

The Turbine Inlet Temperature (TIT) is the engine instrument most likely to exhibit an elevated reading if there is damage to the turbine wheel. This is due to the compromised efficiency of the turbine, which may lead to an increase in the temperature of the exhaust gases as they pass through the turbine. When the turbine wheel is damaged, it may not be able to effectively convert thermal energy into mechanical energy, causing the engine to work harder to maintain performance. As a result, the hotter exhaust gases entering the turbine can result in a higher TIT reading.

This relationship is crucial to understanding engine performance and safety. Monitoring the TIT is essential in assessing the health of the engine and any abnormalities that may arise from mechanical issues, such as turbine wheel damage. Early detection of elevated TIT can prompt necessary actions and prevent further damage to the engine.