USCG Exam PracticeDead reckoning — DR plot maintenance
On a DR plot, a DR position is marked with a ______.
- A. dot inside a circle
- ✓ dot with a semicircleCorrect
- C. dot inside a square
- D. cross inside a circle
Why B is correct
Standardised symbols: fix is a dot inside a circle, DR position is a dot with a semicircle, and estimated position is a dot inside a square.
Cited:Bowditch Ch. 8 §802