Navigation and Right of Way Rules

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 - A vessel nearing a bend where other vessels may be obscured shall sound ...
) one short blast
) one long blast
) two short blasts
) one prolonged blast

Question 2 - Inland/International rules - If you do NOT understand the course or intention of an approaching vessel you should sound ...
) one short blast
) one prolonged blast
) not less than five short blasts
) not less than five prolonged blasts

Question 3 - Inland/International rules - A vessel engaged in fishing must display a light in the direction of any gear that extends outward more than 150 meters. The color of this light is ...
) white
) green
) red
) yellow

Question 4 - Inland/International rules - Additional light signals are provided in the Annexes to the Rules for vessels ...
) engaged in fishing
) not under command
) engaged in towing
) under sail

Question 5 - Inland/International rules - A "flashing light", by the definition given in the rules, is a light that ...
) is red in color
) is visible over an arc of the horizon of 360°
) flashes at regular intervals at a frequency of 120 flashes or more per minute
) All of the above

Question 6 - Inland/International rules - Which vessel would exhibit sidelights when underway and not making way? 
) A vessel not under command
) A vessel towing by pushing ahead
) A vessel engaged in dredging
) A vessel trawling

Question 7 - Inland/International rules - A distress signal ...
) consists of 5 or more short blasts of the fog signal apparatus
) consists of the raising and lowering of a large white flag
) may be used separately or with other distress signals
) is used to indicate doubt about another vessel's intentions

Question 8 - Inland/International rules - At night, a broken down vessel being towed would show the same lights as ...
) a power-driven vessel underway
) the towing vessel
) a barge
) a vessel at anchor

Question 9 - Inland/International rules - Which vessel would exhibit sidelights when underway and not making way? 
) A vessel not under command
) A vessel towing by pushing ahead
) A vessel engaged in dredging
) A vessel trawling

Question 10 - Inland/International rules - A power-driven vessel towing another vessel astern (tow less than 200 meters) shall show ...
) three masthead lights in a vertical line instead of either the forward or after masthead light
) two masthead lights in a vertical line instead of either the forward or after masthead lights
) two towing lights in a vertical line at the stern
) a small white light aft of the funnel