Question 23Gas Turbine - 1st Asst/Chief

The correct answer is C) The inner liner lifts up into the flow path, and the outer liner bends down into the flow path. This is the correct answer because distortion of the combustor liner assembly, which is a critical component in gas turbine engines, typically manifests in this specific pattern. When the inner liner lifts up into the flow path and the outer liner bends down, it indicates that the combustor liner assembly has experienced thermal and/or mechanical stresses, potentially leading to performance degradation and even structural failure if left unchecked. The other options are incorrect because they do not accurately represent the expected distortion pattern. For example, option A describes the opposite of the correct pattern, while options B and D do not accurately capture the relative motion of the inner and outer liners.