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Q171 — Navigation General: Near Coastal

50 questions · 35 correct to pass (70%) · ONC07 OUPV Near Coastal

Reading the water and the chart: buoyage and lights, the compass and its errors, tides and currents, weather systems, electronic navigation, and the bearing and dead-reckoning problems the paper works. Fifty questions, thirty-five to pass.

Topics, by weight

Counted from the published Q171 sample examination, not from the topic outline — the two disagree, and the sample exam is the one that reflects the paper.

91 lessons · 91 cards · 14 practice questions

Aids to Navigation 26% · 13 of 50

60 lessons · 60 cards · 13 practice questions

Tides and Tidal Currents 12% · 6 of 50

15 lessons · 13 cards · 6 practice questions

49 lessons · 46 cards · 5 practice questions

Electronic Navigation 8% · 4 of 50

85 lessons · 85 cards · 4 practice questions

93 lessons · 93 cards · 3 practice questions

49 lessons · 46 cards · 3 practice questions

1 lesson · 3 cards · 2 practice questions

Study aid only — it certifies nothing. Question count and passing score are from the National Maritime Center Deck and Engineering Examination Guide; the topic list is the NMC's published examination topics for Q171. Every lesson names the Coast Guard publication or regulation it comes from.