United States Coast Guard Captains License Practice Exam 2025 – Comprehensive All-in-One Guide for Exam Success!

Question: 1 / 400

What is the main function of a buoy?

To collect weather data

To mark safe navigation routes and hazards

The primary function of a buoy is to mark safe navigation routes and hazards. Buoys serve as navigational aids that provide reference points for sailors and boaters, indicating safe passages, potential dangers, and other important navigational information. They are strategically placed at critical points where there may be shallow waters, reefs, or other hazards that could threaten vessels.

By fulfilling this role, buoys contribute significantly to maritime safety, helping to prevent accidents and ensuring that vessels can navigate safely through various waterways. While buoys can have other roles, such as indicating fishing areas or serving as weather data collection points, their essential purpose is centered around facilitating safe navigation. This focus on navigation distinguishes their main function from other potential uses mentioned in the other choices.

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To signal the presence of underwater cables

To act as a floating platform for fishing

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