Coast Guard Exams
Question 440Navigation General70% to pass

A chart with a scale of 1:45,000 is a _______________.

AI Explanation
The correct answer is C) harbor chart. A harbor chart typically has a scale of 1:45,000 or larger, which provides a detailed representation of a harbor, port, or other confined waterway. This larger scale allows for the depiction of features like piers, docks, navigational aids, and other important information for safe navigation in these confined areas. The other options are incorrect because: A) general charts have a smaller scale (1:150,000 or smaller) and cover larger geographic areas, B) coast charts have a moderate scale (1:80,000 to 1:150,000) and cover coastal regions, and D) sailing charts have a smaller scale (1:300,000 or smaller) and are used for long-distance ocean voyages.

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