Which of the following is NOT part of the standard navigational information that may be passed to a disoriented mariner?

Which of the following is NOT part of the standard navigational information that may be passed to a disoriented mariner?

• A. Magnetic or true bearings between charted objects
• B. Charted depth of water
• C. Radio beacon frequencies
• D. Vessel speed over ground

Answer: (D)

When guiding a disoriented mariner, information shared is chosen to quickly establish position and enable safe guidance. Bearings between charted objects let the mariner triangulate where they are by comparing directions to known features. The charted depth of water gives essential real-world cues about hazards and helps estimate location relative to shorelines and shoals. Radio beacon frequencies provide direct channels to contact rescuers or to use homing signals from navigational aids. Vessel speed over ground doesn’t supply immediate navigation cues for fixing a position or guiding a rescue; it’s more about ongoing motion than the current orientation or safe path, so it isn’t normally included in standard navigational information given in this situation.

When guiding a disoriented mariner, information shared is chosen to quickly establish position and enable safe guidance. Bearings between charted objects let the mariner triangulate where they are by comparing directions to known features. The charted depth of water gives essential real-world cues about hazards and helps estimate location relative to shorelines and shoals. Radio beacon frequencies provide direct channels to contact rescuers or to use homing signals from navigational aids. Vessel speed over ground doesn’t supply immediate navigation cues for fixing a position or guiding a rescue; it’s more about ongoing motion than the current orientation or safe path, so it isn’t normally included in standard navigational information given in this situation.