How does the POOW monitor the ship’s speed and course?

The correct answer highlights the responsibilities of the Petty Officer of the Watch (POOW) in ensuring safe navigation. Monitoring the ship’s speed and course involves a combination of using instruments and tools that provide precise data. Regularly checking the speedometer and compass is essential because these devices provide real-time information about the vessel's speed through the water and its heading, respectively.

Using the speedometer allows the POOW to understand how fast the ship is traveling, while the compass provides crucial navigational data to ensure the ship is on the correct course. This combination of instrument checking is vital for maintaining safe navigation, preventing collisions, and ensuring that the ship adheres to its planned route.

The other methods, such as only relying on visual cues, crew reports, or GPS data alone, do not provide the comprehensive and reliable monitoring needed for effective navigation. Using a mix of instruments, including visuals and communications, is the best practice for ensuring accurate situational awareness while on watch.