This is an interactive test. Read each question and select the proper answer by clicking on the appropriate answer. If a "Y" appears, your choice is correct. If a "N" appears, more study may be in order.
24: BOTH INTERNATIONAL & INLAND Which of the day-shapes shown would you show on the after end of an inconspicuous partially submerged vessel or object being towed less than 200 meters in length? (DIAGRAM 16 )
N a. A Y b. B N c. C N d. No day-shape would be shown. 141: INLAND ONLY 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?
N a. Alter course to assist N b. Give-way Y c. Stand on N d. Heave to 161: BOTH INTERNATIONAL & INLAND You are on a vessel heading due south and see the lights shown one point on the port bow. This vessel could be heading __________. (DIAGRAM 51 )
Y a. NW N b. SW N c. NE N d. SE 197: INTERNATIONAL ONLY A partially submerged object towed by a vessel must show during the day one __________.
Y a. diamond shape when the length of the tow is 200 meters or less N b. diamond shape when the length of the tow exceeds 200 meters in length N c. black ball N d. black ball only when the length of the tow exceeds 200 meters in length 204: INTERNATIONAL ONLY Vessels "A" and "B" are in a crossing situation on the high seas as shown. Vessel "B" sounds one short blast. What is the proper action for vessel "A" to take? (DIAGRAM 14 )
N a. Answer with one blast and hold course and speed Y b. Hold course and speed N c. Answer with one blast and keep clear of vessel "B" N d. Sound danger signal 258: INLAND ONLY Vessels "A" and "B" are meeting on a river as shown and will pass 1/4 mile apart. Which statement is TRUE? (DIAGRAM 41 )
N a. Whistle signals must be exchanged in all situations when passing within one half mile. Y b. If a passing agreement is reached by radiotelephone, whistle signals are optional. N c. If a passing agreement is reached by radiotelephone whistle signals are still required. N d. None of the above 264: INTERNATIONAL ONLY Two power-driven vessels are meeting in the situation as shown. One short blast from either vessel means __________. (DIAGRAM 37 )
Y a. "I am altering my course to starboard." N b. "I intend to leave you on my port side." N c. "I intend to hold course and speed." N d. "I am altering my course to port." 301: BOTH INTERNATIONAL & INLAND A vessel displaying the lights shown is a vessel __________. (DIAGRAM 79 )
N a. engaged in submarine operations N b. dredging N c. engaged in fishing Y d. towing astern 371: INTERNATIONAL ONLY If a towing vessel and her tow are severely restricted in their ability to deviate from their course, the towing vessel shall show lights in addition to her towing identification lights. These additional lights shall be shown if the tow is __________.
N a. pushed ahead N b. towed alongside Y c. towed astern N d. All of the above 4002: BOTH INTERNATIONAL & INLAND While underway in fog, you hear a prolonged blast from another vessel. This signal indicates a __________.
N a. sailboat underway N b. vessel underway, towing Y c. power-driven vessel underway, making way N d. vessel being towed 4030: BOTH INTERNATIONAL & INLAND The NAVIGATION RULES define a "vessel not under command" as a vessel which __________.
N a. from the nature of her work is unable to keep out of the way of another vessel Y b. through some exceptional circumstance is unable to maneuver as required by the rules N c. by taking action contrary to the rules has created a special circumstance situation N d. is moored, aground or anchored in a fairway 4031: BOTH INTERNATIONAL & INLAND Additional light signals are provided in the Annexes to the Rules for vessels __________.
Y a. engaged in fishing N b. not under command N c. engaged in towing N d. under sail 4162: BOTH INTERNATIONAL & INLAND A vessel at night, displaying the lights shown is __________. (DIAGRAM 83 )
N a. fishing Y b. not under command N c. towing N d. being towed 4195: BOTH INTERNATIONAL & INLAND All of the following vessels are "restricted in their ability to maneuver" EXCEPT a vessel __________.
N a. laying a pipeline N b. dredging N c. mineclearing Y d. not under command 4211: BOTH INTERNATIONAL & INLAND In order for a stand-on vessel to take action in a situation, she must determine that the other vessel __________.
N a. is restricted in her ability to maneuver N b. has sounded the danger signal Y c. is not taking appropriate action N d. has not changed course since risk of collision was determined 4234: BOTH INTERNATIONAL & INLAND What lights, if any, would you exhibit at night if your vessel were broken down and being towed by another vessel?
N a. None N b. Same lights as for a power-driven vessel underway N c. A white light forward and a white light aft Y d. The colored sidelights and a white stern light 4333: BOTH INTERNATIONAL & INLAND The arc of visibility for sidelights is from right ahead to __________.
Y a. 22.5° abaft the beam N b. abeam N c. 22.5° forward of the beam N d. 135° abaft the beam 4389: BOTH INTERNATIONAL & INLAND An overtaking situation at night would be one in which one vessel sees which light(s) of a vessel ahead?
N a. Masthead lights and sidelights N b. One sidelight, the masthead lights and stern light N c. Both sidelights Y d. Stern light 4424: BOTH INTERNATIONAL & INLAND The Rules state that risk of collision shall be deemed to exist __________.
N a. whenever two vessels approach from opposite directions Y b. if the bearing of an approaching vessel does not appreciably change N c. whenever a vessel crosses ahead of the intended track of another vessel N d. if one vessel approaches another so as to be overtaking 4488: BOTH INTERNATIONAL & INLAND You are approaching a bend in a channel. You cannot see around the bend because of the height of the bank. You should __________.
N a. stop engines and navigate with caution N b. stay in the middle of the channel N c. sound passing signals to any other vessel that may be on the other side of the bend Y d. sound a whistle blast of 4 to 6 seconds duration 4572: BOTH INTERNATIONAL & INLAND You are underway in low visibility and sounding fog signals. What changes would you make in the fog signal immediately upon losing propulsion?
N a. Begin sounding two prolonged blasts at two-minute intervals. N b. Begin sounding one prolonged blast followed by three short blasts at two-minute intervals. Y c. Begin sounding one prolonged blast followed by two short blasts at two-minute intervals. N d. No change should be made in the fog signal. 4581: BOTH INTERNATIONAL & INLAND A vessel shall slacken her speed, stop, or reverse her engines, if necessary, to __________.
N a. avoid collision N b. allow more time to assess the situation N c. be stopped in an appropriate distance Y d. All of the above 4639: BOTH INTERNATIONAL & INLAND At night you sight a vessel displaying a single green light. This is a __________.
N a. vessel at anchor N b. small motorboat underway N c. vessel drifting Y d. sailing vessel 4654: BOTH INTERNATIONAL & INLAND A vessel engaged in fishing shall keep out of the way of a vessel __________.
N a. under sail Y b. restricted in her ability to maneuver N c. crossing a channel N d. All of the above 4826: BOTH INTERNATIONAL & INLAND According to the Navigation Rules, you may depart from the Rules when __________.
Y a. you do so to avoid immediate danger N b. no vessels are visible on radar N c. you are in a close quarters situation N d. out of sight of land 4872: BOTH INTERNATIONAL & INLAND If you are the stand-on vessel in a crossing situation, you may take action to avoid collision by your maneuver alone. When may this action be taken?
N a. As soon as you determine that risk of collision exists N b. Only when you have reached extremis Y c. When it becomes apparent to you that the give-way vessel is not taking appropriate action N d. When you determine that your present course will cross ahead of the other vessel 5400: BOTH INTERNATIONAL & INLAND A vessel using a traffic separation scheme shall NOT __________.
N a. cross a traffic lane N b. engage in fishing the separation zone Y c. proceed in an inappropriate traffic lane N d. enter the separation zone 8012: INTERNATIONAL ONLY In a narrow channel, a signal of intent which must be answered by the other vessel, is sounded by a vessel __________.
N a. meeting another head-on N b. crossing the course of another Y c. overtaking another N d. Any of the above 8023: BOTH INTERNATIONAL & INLAND A fishing vessel is approaching a vessel not under command. Which statement is TRUE?
Y a. The fishing vessel must keep clear of the vessel not under command. N b. If the vessel not under command is a power-driven vessel, she must keep clear of the fishing vessel. N c. They must exchange whistle signals. N d. Both vessels are required to take action to stay clear of each other. 8063: INTERNATIONAL ONLY On open water two vessels are in an overtaking situation. The overtaking vessel has just sounded one short blast on the whistle. What is the meaning of this whistle signal?
N a. "I request permission to pass you on my port side." N b. "I will maintain course and speed and pass you on your starboard side." N c. "On which side should I pass?" Y d. "I am changing course to starboard."