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Deck · 2,639 questions

General Navigation - USCG Exam Questions

Chart reading, the U.S. Aids to Navigation System, compass error, tides and currents, and the standard navigation publications.

Every question below is a real U.S. Coast Guard exam question with four choices. Answer one and the correct choice is revealed instantly, with the USCG reference and illustration where the question uses one.

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All General Navigation questions

Questions 2,601–2,639 of 2,639 · page 27 of 27

  1. #2806 You sight a spar buoy with the topmark shown in the illustration. You must take which of the following actions? illustration
  2. #2807 While on duty as a look-out, which other duty may you perform?
  3. #2808 Which is TRUE concerning magnetic compass deviation?
  4. #2809 BOTH INTERNATIONAL & INLAND A vessel nearing a bend where other vessels may be obscured is required to sound which signal?
  5. #2810 When entering a channel from seaward, which is TRUE concerning the numbers on buoys?
  6. #2811 BOTH INTERNATIONAL & INLAND In open waters, a vessel fishing is in a crossing situation with a vessel sailing. The sailing vessel is located on the fi...
  7. #2812 INLAND ONLY You are proceeding against the current on a river in the Great Lakes System. You are meeting a downbound vessel. Both vessels are power-dr...
  8. #2813 A cardinal mark showing an uninterrupted quick-flashing white light indicates the deepest water is located in which quadrant?
  9. #2814 A green buoy has a yellow triangle on it. What type of buoy is this?
  10. #2815 Which buoy may be odd numbered?
  11. #2816 INLAND ONLY While underway during the day you sight a small motorboat showing a flashing blue light. What does the blue light indicate?
  12. #2817 BOTH INTERNATIONAL & INLAND When shall a proper look-out be maintained?
  13. #2818 BOTH INTERNATIONAL & INLAND Which of the signals, other than a distress signal, can be used by a vessel to attract attention?
  14. #2819 The height of a light is measured from which reference plane?
  15. #2820 When a helmsman receives the command "Right 15 degrees rudder," what should the helmsman's immediate reply be?
  16. #2821 BOTH INTERNATIONAL & INLAND You see a red sidelight bearing NW (315°). That vessel may be heading in which direction?
  17. #2822 In waters where the cardinal system is used where would you expect to find danger?
  18. #2823 You are outbound in a buoyed channel on course 015°T. You sight a white light showing a Morse (A) characteristic bearing 359° relative. For safety, wh...
  19. #2824 BOTH INTERNATIONAL & INLAND A vessel aground in fog shall sound, in addition to the proper anchor signal, which of the following?
  20. #2825 BOTH INTERNATIONAL & INLAND You are on watch in fog. Which vessel is "in sight"?
  21. #2826 BOTH INTERNATIONAL & INLAND When navigating in thick fog with the radar on, which action should you take?
  22. #2827 BOTH INTERNATIONAL & INLAND Vessel "A" is overtaking vessel "B" as shown in the illustration. Vessel "B" should do which of the following? illustration
  23. #2828 The Light List indicates that a dayboard is a type MR. You should take which action?
  24. #2829 What does the command "Hard right rudder" mean?
  25. #2830 A special mark (yellow buoy), if lighted, may exhibit which light rhythm?
  26. #2831 ) How is a safe water mark, that can be passed close aboard on either side, painted and lighted?
  27. #2832 How are buoys which mark isolated dangers painted?
  28. #2833 As you enter a U.S. channel from seaward, which is TRUE concerning the numbers on the buoys?
  29. #2834 BOTH INTERNATIONAL & INLAND The masthead light may be displaced from the centerline on which of the following vessels?
  30. #2835 White and orange buoys, if lighted, show which color light?
  31. #2836 BOTH INTERNATIONAL & INLAND Which statement concerning whistle signals is FALSE?
  32. #2837 BOTH INTERNATIONAL & INLAND If two sailing vessels are running free with the wind on the same side, which one must keep clear of the other?
  33. #2838 BOTH INTERNATIONAL & INLAND Which lights is a vessel not under command, underway but not making way, required to exhibit?
  34. #2839 BOTH INTERNATIONAL & INLAND A vessel at anchor shall display, between sunrise and sunset, on the forward part of the vessel where it can best be seen...
  35. #2840 What is the compass course of a vessel heading SW?
  36. #2841 BOTH INTERNATIONAL & INLAND Which of the following is TRUE of a distress signal?
  37. #2842 BOTH INTERNATIONAL & INLAND You are overtaking a vessel at night and you see a yellow light showing above the stern light of the overtaken vessel. Whi...
  38. #2843 INLAND ONLY If you were coming up on another power-driven vessel from dead astern and desired to overtake on the other vessel's starboard side, which...
  39. #2844 Which buoy may be odd numbered?

General Navigation questions: what to expect

Q How many General Navigation questions are in the Deck pool?

There are 2,639 General Navigation questions on this site, every one released by the U.S. Coast Guard or taken from the National Maritime Center's sample examinations, with its correct answer. The exam draws its General Navigation module from the same pool.

Q What score do I need to pass the General Navigation module?

Most USCG exam modules, including General Navigation, require 70 percent to pass. Rules of the Road modules require 90 percent.

Q Are these the real USCG General Navigation exam questions?

Yes. They are the published U.S. Coast Guard questions, matched to the National Maritime Center's 2026 sample examinations. Answer any question to see the correct choice, the USCG reference and the illustration where the question uses one.

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About the Deck question pool

The Deck pool holds the current U.S. Coast Guard questions for every deck credential, from Able Seaman and the OUPV six-pack up to unlimited Master. Each question is multiple choice with four options, graded instantly, with the USCG reference shown where one exists.