Question 1811Navigation General70% to pass
A chart position enclosed by a semi-circle is a(n) _______________.
AI Explanation
The correct answer is C) dead reckoning position.
A chart position enclosed by a semi-circle indicates a dead reckoning position, which is calculated based on the vessel's course, speed, and elapsed time, without the benefit of a visual or electronic fix. This is in contrast to a fix (option A), which is a position determined by visual bearings, electronic positioning systems, or other external references, or an estimated position (option B), which incorporates some external data into the position calculation. A running fix (option D) involves taking multiple fixes over time to determine a vessel's position, rather than a single dead reckoning position.
Related Questions
#1809 You are plotting a running fix. The LOP to be run forward is an arc from a radar range, what technique should be used? #1810 A chart position enclosed by a square is a(n) _______________.#1812 A single line of position combined with a dead-reckoning position results in a(n) _______________.#1813 Lines of position may be _______________.#1814 A line connecting all possible positions of your vessel at any given time is a _______________.