Where do all orders and commands affecting a ship originate?

All orders and commands affecting a ship originate on the bridge. The bridge is the command center where the captain and officers navigate and control the vessel. It serves as the primary location for decision-making regarding the ship's course, speed, and overall operations. From the bridge, the crew utilizes navigational instruments and communication systems to ensure safe and efficient operation. This central role in managing the ship's movements and maritime safety underscores the importance of the bridge in maritime operations.

The other locations mentioned — the engine room, the galley, and the cargo hold — have specific functions but do not serve as command centers for overall ship operations. The engine room is focused on propulsion and mechanical systems, the galley is concerned with food preparation, and the cargo hold pertains to the storage of cargo, rather than navigation or command decisions.