Question 26Gas Turbine - 1st Asst/Chief

The correct answer is C) SSS clutch will not engage. The term "lockout" in the context of a Synchro-Self-Shifting (SSS) clutch system refers to a condition where the SSS clutch will not engage. This is a safety feature designed to prevent the clutch from engaging when certain conditions are not met, such as excessive shaft speed or improper shaft alignment. When the SSS clutch is "locked out," it will not transfer power from the engine to the reduction gear, effectively preventing the shaft from rotating. The other options are incorrect because they do not accurately describe the meaning of "lockout" in an SSS clutch system. Option A is incorrect because the reduction gear can still rotate, even if the SSS clutch is locked out. Option B is incorrect because the shaft speed is not limited to 10 RPM, but rather the clutch will not engage at all. Option D is incorrect because the shaft can still rotate, but it will not be driven by the engine through the SSS clutch.