Spinnaker Sailing
Navigation and Right of Way Rules Quiz
These questions and their answers are gleaned from the USCG Mariners Tests, and we trust in them for their accuracy. There are over 400 questions regarding navigation rules alone and all quiz questions are picked randomly. Questions are graded individually and you do not have to answer all questions to check your answers. Don't be discouraged if you miss a few questions, some of them are pretty hard. However, the more you take this test the more you will learn!
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Question 1 - Inland/International rules - You are underway in fog when you hear the following signal: one short blast, one prolonged blast and one short blast in succession. Which of the following would it be?
) A sailing vessel underway with the wind abaft the beam
) A power-driven vessel underway and making way through the water
) A vessel at anchor
) A vessel towing

Question 2 - Inland/International rules - Two vessels are in an overtaking situation. Which of the lights on the overtaken vessel will the overtaking vessel see?
) Two masthead lights
) One masthead light and a sidelight
) Both sidelights
) Sternlight only

Question 3 - Inland rules - What is the whistle signal used to indicate a power-driven vessel leaving a dock?
) One short blast
) Three short blasts
) One prolonged blast
) Three prolonged blasts

Question 4 - Inland/International rules - Which statement is TRUE concerning a vessel equipped with operational radar?
) The Master of the vessel must be on the bridge when the radar is in use.
) The radar equipment is only required to be used in restricted visibility.
) The use of a radar excuses a vessel from the need of a look-out.
) This equipment must be used to obtain early warning of risk of collision.

Question 5 - Inland/International rules - A vessel engaged in fishing shall keep out of the way of a vessel ...
) under sail
) restricted in her ability to maneuver
) crossing a channel
) All of the above

Question 6 - Inland/International rules - According to the Navigation Rules, you may depart from the Rules when ...
) avoiding immediate danger
) no vessels are visible on radar
) in a close quarters situation
) out of sight of land

Question 7 - Inland/International rules - Which signal shall a power-driven vessel sound when making way in fog?
) One short blast every two minutes
) One prolonged blast every two minutes
) One prolonged and two short blasts every two minutes
) Three short blasts every two minutes

Question 8 - Inland/International rules - You are approaching a narrow channel. Another vessel in the channel can only be navigated safely in that channel. You should ...
) not cross the channel if you might impede the other vessel
) hold your course and speed if she is on your port bow
) sound three short blasts, and take all way off your vessel
) sound two prolonged blasts followed by one short blast

Question 9 - Inland/International rules - A partly submerged vessel or object being towed, which is not readily noticeable, shall show ...
) yellow lights at each end
) two red lights in a vertical line
) a black ball
) a diamond shape

Question 10 - Inland/International rules - Two vessels are approaching each other near head on. What action should be taken to avoid collision?
) The first vessel to sight the other should give way.
) The vessel making the slower speed should give way.
) Both vessels should alter course to starboard.
) Both vessels should alter course to port.