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.
2: INLAND ONLY What is the required whistle signal for a power-driven vessel leaving a dock or berth?
N a. One short blast Y b. One prolonged blast N c. Two short blasts N d. Two prolonged blasts 47: INLAND ONLY A flashing blue light is used to identify __________.
Y a. law enforcement vessels N b. U.S. submarines N c. air-cushion vessels in the nondisplacement mode N d. dredge pipelines on trestles 124: INLAND ONLY Which term is NOT defined in the Inland Navigation Rules?
N a. Towing light Y b. Vessel constrained by her draft N c. In sight N d. Restricted visibility 222: INLAND ONLY A barge more than 50 meters long, at anchor in a "special anchorage area designated by the Secretary", is required to show how many white anchor lights?
N a. 1 N b. 3 N c. None Y d. 2 236: INTERNATIONAL ONLY Vessel "A" is overtaking vessel "B" on open waters as shown and will pass without changing course. Vessel "A" should sound __________. (DIAGRAM 17 )
N a. one short blast N b. two short blasts N c. one prolonged blast Y d. no whistle signal 255: INTERNATIONAL ONLY Vessels "A" and "B" are meeting on a river as shown and will pass 1/4 mile apart. Which light on vessel "B" will you see if you are on vessel "A"? (DIAGRAM 41 )
N a. special flashing yellow light N b. flashing blue light N c. two yellow towing lights Y d. None of the above 300: BOTH INTERNATIONAL & INLAND A vessel displaying the lights shown is a(n) __________. (DIAGRAM 79 )
N a. sailing vessel Y b. vessel towing astern N c. vessel engaged in fishing N d. vessel dredging 333: BOTH INTERNATIONAL & INLAND Diagram "B" shows the arc of visibility of a __________. (DIAGRAM 23 )
N a. yellow flashing light N b. red sidelight Y c. green sidelight N d. stern light 363: BOTH INTERNATIONAL & INLAND Two power-driven vessels are crossing as shown. Vessel "A" sounds one short blast on the whistle. Vessel "B" is the __________. (DIAGRAM 42 )
N a. burdened vessel N b. give-way vessel N c. overtaking vessel Y d. None of the above 399: BOTH INTERNATIONAL & INLAND The lead vessel shown is a __________. (DIAGRAM 24 )
N a. mineclearance vessel N b. survey vessel Y c. power-driven vessel towing astern N d. None of the above 4111: BOTH INTERNATIONAL & INLAND A 50-meter vessel is towing astern and the length of the tow is 100 meters. In addition to sidelights, which lights may she show to fully comply with the Rules?
N a. Two masthead lights forward, a stern light, and a towing light above the stern light Y b. A masthead light forward, two masthead lights aft, a stern light, and a towing light above the stern light N c. No masthead light forward, two masthead lights aft, a stern light, and a towing light above the stern light N d. Three masthead lights forward, one masthead light aft, and two towing lights in a vertical line at the stern 4189: BOTH INTERNATIONAL & INLAND You see a vessel displaying the day signal shown. The vessel may be __________. (DIAGRAM 6 )
N a. not under command N b. fishing with trawls Y c. laying cable N d. aground 4197: BOTH INTERNATIONAL & INLAND A vessel which is unable to maneuver due to some exceptional circumstance, shall show two red lights in a vertical line and __________.
N a. during the day, three balls in a vertical line N b. during the day, three shapes, the highest and lowest being balls and the middle being a diamond Y c. when making way at night, sidelights and a stern light N d. when making way at night, masthead lights, sidelights, and a stern light 4242: BOTH INTERNATIONAL & INLAND All fog signals shall be sounded every two minutes with the exception of a vessel __________.
N a. underway or making way N b. under sail or under tow Y c. anchored or aground N d. not under command or restricted in her ability to maneuver 4263: BOTH INTERNATIONAL & INLAND In a dense fog, you hear a whistle signal of one prolonged blast followed by three short blasts. This signal is sounded by a __________.
Y a. manned vessel being towed N b. fishing vessel underway trawling N c. pilot vessel underway making a special signal N d. vessel not under command 4292: BOTH INTERNATIONAL & INLAND While underway in fog, you hear a signal of one prolonged blast followed by three short blasts. This is the fog signal for a vessel __________.
N a. towing Y b. being towed (manned) N c. under sail N d. at anchor 4331: BOTH INTERNATIONAL & INLAND You see the lights shown. What would it be? (DIAGRAM 77 )
N a. A vessel pushing barges ahead Y b. A vessel towing barges astern N c. A pipeline N d. A stationary dredge 4421: BOTH INTERNATIONAL & INLAND You see a red sidelight bearing NW (315°). That vessel may be heading __________.
Y a. south (180°) N b. east (090°) N c. northeast (045°) N d. west (270°) 4448: BOTH INTERNATIONAL & INLAND Vessel "A" is underway and pushing ahead when vessel "B" is sighted off the starboard bow as shown. Which statement is TRUE? (DIAGRAM 5 )
N a. Vessel "A" is the stand-on vessel because it is to the port side of vessel "B". N b. Vessel "A" is the stand-on vessel because it is pushing ahead. Y c. Vessel "B" is the stand-on vessel because it is to starboard of vessel "A". N d. Neither vessel is the stand-on vessel. 4508: BOTH INTERNATIONAL & INLAND Which vessel may carry her sidelights and stern light in a combined lantern on the mast?
Y a. An 18-meter sailing vessel N b. A 10-meter sailing vessel also being propelled by machinery N c. A 25-meter sailing vessel N d. All of the above 4537: BOTH INTERNATIONAL & INLAND Vessel "A" is on course 000°T. Vessel "B" is on a course such that she is involved in a head-on situation and is bearing 355°T, 2 miles away from vessel "A". To ensure a safe passing, vessel "A" should __________.
N a. maintain course N b. alter course to port N c. alter course to ensure a starboard to starboard passing Y d. maneuver to ensure a port to port passing 4549: BOTH INTERNATIONAL & INLAND Two sailing vessels are approaching each other as shown. Which statement is correct? (DIAGRAM 3 )
N a. Vessel "I" should stand on because she has the wind on her port side. Y b. Vessel "II" should stand on because she has the wind on her starboard side. N c. Neither vessel is the stand-on vessel because they are meeting head-on. N d. Vessel "I" should stand on because she is close-hauled. 4625: BOTH INTERNATIONAL & INLAND What must be TRUE in order for a stand-on vessel to take action to avoid collision by her maneuver alone?
N a. She must be in sight of the give-way vessel. N b. There must be risk of collision. N c. She must determine that the give-way vessel is not taking appropriate action. Y d. All of the above 4669: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning the light used with whistle signals?
N a. Use of such a light is required. Y b. Its purpose is to supplement short blasts of the whistle. N c. The light shall have the same characteristics as a masthead light. N d. All of the above 4709: BOTH INTERNATIONAL & INLAND At night, a vessel displaying the lights shown is __________. (DIAGRAM 52 )
N a. aground Y b. underway N c. at anchor N d. transferring dangerous cargo 4850: BOTH INTERNATIONAL & INLAND The Rules state that risk of collision shall be deemed to exist __________.
N a. whenever two vessels are on opposite courses N b. whenever a vessel crosses ahead of the intended track of another vessel Y c. if the bearing of an approaching vessel does not appreciably change N d. if one vessel approaches another so as to be overtaking 6540: BOTH INTERNATIONAL & INLAND A vessel may enter a traffic separation zone __________.
N a. in an emergency N b. to engage in fishing within the zone N c. to cross the traffic separation scheme Y d. All of the above 6550: BOTH INTERNATIONAL & INLAND In a traffic separation scheme, when joining a traffic lane from the side, a vessel shall do so __________.
Y a. at as small an angle as possible N b. as nearly as practical at right angles to the general direction of traffic flow N c. only in case of an emergency or to engage in fishing within the zone N d. never 8020: INTERNATIONAL ONLY A vessel not under command sounds the same fog signal as a vessel __________.
N a. towing N b. constrained by her draft N c. under sail Y d. All of the above 8131: INTERNATIONAL ONLY What characteristic must a light have if used to signal passing intentions?
Y a. It must be an all-round white light. N b. It must be an alternating blue and white light. N c. It must be an all-round white or yellow light. N d. It must be an alternating red and yellow light.