Master the Art of Sea Navigation
Challenge yourself with expert-level questions covering celestial fixes, dead reckoning, GPS anomalies, and chart symbols.
Quiz Questions
Answer all questions below and test your knowledge.
- 1
What is the primary purpose of a Mercator projection on nautical charts?
- 2
When using a sextant to determine latitude, which celestial body provides the most reliable measurement at sea?
- 3
In dead reckoning, which factor most significantly increases positional error over long passages?
- 4
Which GPS error source can cause a sudden position jump of several hundred meters, often termed a "cycle slip"?
- 5
What does the chart symbol of a solid black circle with a white dot inside represent?
- 6
During a celestial fix using the intercept method, what does a "line of position" represent?
- 7
Which of the following best describes the term "magnetic variation"?
- 8
When plotting a course that crosses a meridian, which navigation technique is most appropriate to avoid the convergence error of rhumb lines?
- 9
In modern Integrated Bridge Systems, what does the term "ECDIS" stand for?
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