USCG Exam PracticeDead reckoning — DR plot maintenance
Dead reckoning determines a vessel's position by which method?
- A. Taking simultaneous bearings on two or more charted objects
- ✓ Applying course steered and distance run from a known starting pointCorrect
- C. Advancing a line of position along the DR track to a later time
- D. Referencing landmarks, aids to navigation, and soundings
Why B is correct
Bowditch Ch. 1 §102 defines dead reckoning as the determination of position by applying course steered and distance run from a known starting point. Option A describes fixing by simultaneous LOPs, option C describes a running fix, and option D describes piloting.
Cited:Bowditch Ch. 1 §102