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USCG Exam PracticeDead reckoning — DR plot maintenance

A navigator obtains a single bearing on a lighthouse. What does that observation produce on the chart?

  1. A. A fix
  2. B. A running fix
  3. A line of positionCorrect
  4. D. A course made good

Why C is correct

Bowditch Ch. 7 §701 defines a line of position (LOP) as a line along which the vessel is known to lie based on a single observation. A fix requires the intersection of two or more LOPs taken simultaneously; a single bearing cannot produce a fix.

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A navigator obtains a single bearing on a lighthouse. What does tha… — USCG Exam Practice · CaptainsGround