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!

Once test is submitted to you can use the Take Another Quiz link at the top to see more questions

Question 1 - Inland rules - A commercial vessel engaged in public safety activities may display a(n) ...
) flashing yellow light
) flashing blue light
) alternately flashing blue and red light
) alternately flashing red and yellow light

Question 2 - Inland rules - You are the stand-on vessel in an overtaking situation. The other vessel is showing an alternately flashing red-and-yellow light. What action should you take?
) Alter course to assist
) Yield right of way
) Stand on
) Heave to

Question 3 - Inland/International rules - The white masthead light required for a power-driven vessel under the Rules is visible over how many degrees of the horizon?
) 022.5°
) 112.5°
) 225.0°
) 360.0°

Question 4 - Inland/International rules - A vessel of less than 20 meters in length may display a basket as a dayshape when she is engaged in ...
) trawling
) diving operations
) trolling
) All of the above

Question 5 - Inland/International rules - You are underway in a narrow channel and you are being overtaken by a vessel astern. The overtaking vessel sounds a signal indicating his intention to pass your vessel on your starboard side. If such an action appears dangerous you should sound ...
) five short and rapid blasts
) three short and rapid blasts
) one prolonged followed by one short blast
) one prolonged, one short, one prolonged, and one short blast in that order

Question 6 - Inland/International rules - When a vessel signals her distress by means of a gun or other explosive signal, the firing should be at intervals of approximately ...
) 10 minutes
) 1 minute
) 1 hour
) 3 minutes

Question 7 - Inland rules - One and two short blast signals must be sounded on inland waters when ...
) two sailing vessels are in sight of one another and meeting at a distance of one quarter mile
) two power-driven vessels are in sight of one another and will cross at a distance of one mile
) two power-driven vessels are crossing within half a mile of each other and NOT in sight of each other
) Two power-driven vessel are in sight of one another and are meeting at a distance of one half mile

Question 8 - Inland/International rules - Your vessel is 25 meters long and anchored in restricted visibility. You are required to sound the proper fog signal at intervals of not more than ...
) 30 seconds
) one minute
) two minutes
) three minutes

Question 9 - Inland/International rules - The masthead light may be located at other than the fore and aft centerline of a vessel ...
) less than 20 meters in length
) less than 12 meters in length
) which has separate sidelights carried on the outboard extremes of the vessel's breadth
) engaged in fishing

Question 10 - Inland/International rules - A vessel engaged in fishing while at anchor shall sound a fog signal of ...
) one prolonged and two short blasts at two-minute intervals
) one prolonged and three short blasts at two-minute intervals
) a rapid ringing of the bell for five seconds at one-minute intervals
) a sounding of the bell and gong at one-minute intervals