What occurs when you push the related Engine Shutoff Switch on the Overhead panel?

When the Engine Shutoff Switch on the Overhead panel is pushed, it closes the related fuel shutoff valve. This action is crucial for engine management and safety, as shutting off fuel supply to an engine effectively stops combustion and, consequently, engine operation. This functionality allows pilots to manage engine performance in case of an emergency or when conducting specific maintenance procedures.

The other options pertain to different operational processes unrelated to the shutoff function. For instance, activating the autopilot system is controlled by its own dedicated switches and does not involve the engine shutoff function. Similarly, opening all engine throttle valves and beginning the engine start sequence are distinct actions that also fall outside the scope of the fuel shutoff mechanism. Therefore, closing the related fuel shutoff valve is the specific action taken by pushing the Engine Shutoff Switch.