đ Key Concepts
⢠Consult the U.S. Coast Pilot and appropriate NOAA charts covering Norfolk, the Chesapeake Bay, the C&D Canal, and the Delaware River up to Philadelphia.
⢠Remember that a deep draft vessel will normally follow the main ship channel rather than any shorter inshore or small-craft routes.
⢠Pay attention to how distances are usually listed in references: often Norfolk to Baltimore, and Baltimore to Philadelphia, or similar legs that you may need to add.
đ Think About
⢠Which standard shipping route would a deep draft commercial vessel actually use, and does that match a commonly published distance in routing guides?
⢠Can you break the trip into logical legs (e.g., Norfolk to entrance of C&D Canal, through the canal, then out to Philadelphia) and estimate the distance of each leg from chart scales or tables?
⢠Do any of the answer choices look unrealistically short or long when you compare them to known distances between major ports on the East Coast (for example, Norfolk to New York)?
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Before You Answer
⢠Verify that you are using distances for the main deepâwater channels, not ICW (Intracoastal Waterway) or recreational routes.
⢠Check whether your source distance is statute miles vs. nautical miles, and match that to the examâs units for this question.
⢠Confirm that any leg distances you use (e.g., NorfolkâC&D entrance, through the C&D Canal, down the Delaware to Philadelphia) are all in the same unit before adding them.