USCG Exam PracticeRunning fix from a single object
At what minimum intervals must a new DR position be plotted when operating in pilot waters?
- A. Once each watch
- ✓ At least once each hour, and more often in pilot watersCorrect
- C. Only at each course or speed change
- D. Every 30 minutes regardless of waters
Why B is correct
Bowditch Ch. 8 §801 requires a new DR position at every course change, every speed change, at the time of each fix, and at least once each hour — with the explicit qualification that DR positions must be plotted more often in pilot waters.
Cited:Bowditch Ch. 8 §801