Question 457Motor Plants - Assistant Engineer

The correct answer is C) Failure to reset the overspeed trip. The key reason this is the correct answer is that an overspeed trip is a safety mechanism designed to automatically shut down the engine if it exceeds a critical speed. If the overspeed trip has been triggered but not properly reset, the engine will be unable to restart until the trip is reset, even if other components like the governor are functioning properly. The other answer choices, such as issues with the governor or fuel rack, would not directly prevent the engine from restarting in this scenario. The other options are incorrect because they do not directly address the root cause of the engine's failure to restart. Improper governor operation or damage would affect engine performance, but not necessarily prevent a restart. And a failure to reposition the fuel rack would impact engine operation, but not necessarily inhibit a restart on its own.