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.
41: INLAND ONLY Two vessels in a crossing situation have reached agreement by radiotelephone as to the intentions of the other. In this situation, whistle signals are __________.
N a. required Y b. not required, but may be sounded N c. required if crossing within half a mile N d. required when crossing within one mile 41: INLAND ONLY Two vessels in a crossing situation have reached agreement by radiotelephone as to the intentions of the other. In this situation, whistle signals are __________.
N a. required Y b. not required, but may be sounded N c. required if crossing within half a mile N d. required when crossing within one mile 94: INLAND ONLY You are overtaking another power-driven vessel and sound a whistle signal indicating that you intend to pass the vessel along her starboard side. If the other vessel answers your signal with five short and rapid blasts, you should __________.
Y a. not overtake the other vessel until both vessels exchange the same passing signal N b. not overtake the other vessel until she sounds another five short and rapid blast signal N c. pass the other vessel along her starboard side N d. sound five short and rapid blasts and pass along her starboard side 209: INLAND ONLY A single vessel being towed alongside shall show __________.
N a. one all-round white light N b. sidelights and a stern light N c. only the outboard sidelight and a stern light Y d. a special flashing light, sidelights, and a stern light 340: INLAND ONLY Two power-driven vessels are crossing within a half a mile of each other as shown. Vessel "A" sounds one short blast on the whistle. Vessel "B" should sound __________. (DIAGRAM 42 )
N a. one prolonged, one short, one prolonged and one short blasts N b. one prolonged blast N c. two short blasts Y d. None of the above 392: BOTH INTERNATIONAL & INLAND You see ONLY the light shown. This could be a __________. (DIAGRAM 80 )
N a. law enforcement vessel N b. vessel on pilotage duty N c. vessel engaged in fishing Y d. sailing vessel 4033: BOTH INTERNATIONAL & INLAND The duration of a prolonged blast of the whistle is __________.
N a. 2 to 4 seconds Y b. 4 to 6 seconds N c. 6 to 8 seconds N d. 8 to 10 seconds 4100: BOTH INTERNATIONAL & INLAND A 45-meter vessel is pulling a 210-meter tow. She may exhibit __________.
N a. a masthead light forward, and two masthead lights in a vertical line aft Y b. three masthead lights forward and one aft N c. two masthead lights forward and no after masthead light N d. three masthead lights aft and none forward 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 4210: BOTH INTERNATIONAL & INLAND A vessel being towed astern shall show at night __________.
N a. the lights required for a power-driven vessel underway N b. only the required masthead lights N c. a stern light only Y d. sidelights and a stern light 4254: BOTH INTERNATIONAL & INLAND You are underway in restricted visibility and hear a fog signal forward of the beam. Nothing appears on your radar screen. You must __________.
N a. stop your engines N b. sound two prolonged blasts of the whistle N c. sound the danger signal Y d. slow to bare steerageway 4302: BOTH INTERNATIONAL & INLAND A vessel nearing a bend or an area of a channel or fairway where other vessels may be obscured by an intervening obstruction shall sound __________.
N a. one long blast Y b. one prolonged blast N c. the danger signal N d. two short blasts 4351: BOTH INTERNATIONAL & INLAND Two power-driven vessels are crossing so as to involve risk of collision. Which statement is TRUE, according to the Rules?
N a. The vessel which has the other on her own port side shall keep out of the way. Y b. If the stand-on vessel takes action, she shall avoid changing course to port. N c. If the give-way vessel takes action, she shall avoid changing course to starboard. N d. The give-way vessel should keep the other vessel to her starboard. 4394: BOTH INTERNATIONAL & INLAND A partly submerged vessel or object being towed, which is not readily noticeable, shall show __________.
N a. yellow lights at each end N b. two red lights in a vertical line N c. a black ball Y d. a diamond shape 4469: BOTH INTERNATIONAL & INLAND A pilot vessel may continue to sound an identity signal in fog if she is __________.
N a. aground Y b. at anchor N c. not under command N d. no longer on pilotage duty 4487: BOTH INTERNATIONAL & INLAND A vessel displaying the day-shape shown is __________. (DIAGRAM 34 )
N a. towing Y b. fishing N c. anchored N d. being towed 4510: BOTH INTERNATIONAL & INLAND You are approaching a vessel dredging during the day and see two balls in a vertical line on the port side of the dredge. These shapes mean that __________.
N a. you should pass on the port side of the dredge Y b. there is an obstruction on the port side of the dredge N c. the dredge is not under command N d. the dredge is moored 4523: BOTH INTERNATIONAL & INLAND A vessel is overtaking when she approaches another from more than how many degrees abaft the beam?
N a. 0.0° N b. 11.25° Y c. 22.5° N d. 45.0° 4569: BOTH INTERNATIONAL & INLAND When two power-driven vessels are crossing, the vessel which has the other to starboard must keep out of the way if __________.
N a. she is the faster vessel Y b. the situation involves risk of collision N c. the vessels will pass within half a mile of each other N d. whistle signals have been sounded 4580: BOTH INTERNATIONAL & INLAND You see a vessel displaying ONLY the lights shown. This could be a __________. (DIAGRAM 45 )
Y a. pilot vessel less than 50 meters, underway and NOT engaged on pilotage duty N b. vessel engaged in fishing N c. vessel aground less than 50 meters N d. vessel engaged in dredging at anchor with an obstruction on one side 4599: BOTH INTERNATIONAL & INLAND Underway at night you see the red sidelight of a vessel well off your port bow. Which statement is TRUE?
N a. You are required to alter course to the right. N b. You must stop engines. N c. You are on a collision course with the other vessel. Y d. You may maintain course and speed. 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 4689: BOTH INTERNATIONAL & INLAND Which vessel sounds the same fog signal when underway or at anchor?
N a. A sailing vessel N b. A vessel constrained by her draft Y c. A vessel restricted in her ability to maneuver N d. A vessel not under command 4825: BOTH INTERNATIONAL & INLAND What is a light signal authorized by the Secretary of the Navy as an additional navigational light for a ship of war?
N a. Two yellow lights in a vertical line for a carrier launching aircraft N b. Green masthead and yardarm lights for a vessel engaged in mineclearing operations Y c. Flashing amber beacon for submarines N d. Yellow flares indicating torpedo firing exercises 4856: BOTH INTERNATIONAL & INLAND When in sight of another vessel and there is sufficient sea room, any action taken to avoid collision must __________.
N a. be accompanied by sound signals Y b. not result in another close quarters situation N c. include a speed change N d. All of the above 5000: BOTH INTERNATIONAL & INLAND While underway in fog, you hear a vessel ahead sound two prolonged blasts on the whistle. You should __________.
Y a. sound only fog signals until the other vessel is sighted N b. not sound any whistle signals until the other vessel is sighted N c. sound two blasts and change course to the left N d. sound whistle signals only if you change course 8004: INTERNATIONAL ONLY When moving from a berth alongside a quay (wharf), a vessel must sound __________.
N a. three short blasts N b. a long blast N c. a prolonged blast Y d. No signal is required. 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. 8061: INTERNATIONAL ONLY Vessel "A" is overtaking vessel "B" on open waters as shown and will pass without changing course. Vessel "A" __________. (DIAGRAM 17 )
N a. should sound two short blasts N b. should sound the danger signal N c. should sound one long blast Y d. need not sound any whistle signals 8115: INTERNATIONAL ONLY Of the vessels listed, which must keep out of the way of all the others?
N a. A vessel constrained by her draft N b. A vessel restricted in her ability to maneuver Y c. A vessel pushing a barge N d. A vessel engaged in fishing