FAA Powerplant Written Practice Test 2025 – Complete Exam Prep

Question: 1 / 1165

What happens if a turbine engine is operated with excessively high EGT?

Increased fuel consumption

Improved engine performance

Damage to the turbine section and reduced component life

Operating a turbine engine with excessively high exhaust gas temperature (EGT) can lead to significant damage to the turbine section and a reduction in the overall component life. High EGT indicates that the engine is generating abnormal levels of heat, which can cause thermal stress on the turbine blades and other components. Over time, this excessive heat can lead to phenomena such as blade deformation, oxidation, and even catastrophic failure.

The turbine blades are designed to withstand specific temperature ranges, and exceeding these limits can compromise their integrity. Continued operation under these conditions can accelerate wear and tear, ultimately leading to costly repairs or the need for replacement parts. Therefore, maintaining EGT within the manufacturer's specified limits is crucial for ensuring both the performance and longevity of the engine components.

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Lower risk of engine failure

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