Which of the following specifications is most critical in making an on-engine determination of turbine shaft wear?
A) Turbine shaft diameter.
B) Turbine shaft length.
C) Turbine shaft radial play.
D) Thrust bearing inner diameter.

Question

Quizplus · Accepted Answer

Turbine shaft radial play is the most critical specification in making an on-engine determination of turbine shaft wear. This refers to the amount of movement or looseness in the shaft as it rotates, and can indicate if there is excessive wear in the bearings or other components. The other options listed may be important in other aspects of engine maintenance, but do not directly relate to determining turbine shaft wear.

Which of the Following Specifications Is Most Critical in Making