USCG Exam PracticeThree-bearing fix and cocked-hat triangle
A line of position (LOP) is best defined as a line along which the vessel is known to lie based on:
- A. Two or more simultaneous bearing observations to different objects
- ✓ A single observation at a given momentCorrect
- C. An advanced DR position corrected for current
- D. The intersection of a bearing and a depth contour
Why B is correct
A single observation produces one LOP — a line along which the vessel is known to lie at that moment. Two or more simultaneous LOPs are required to produce a fix, not a single LOP.
Cited:Bowditch Ch. 7 §701