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.
42: INLAND ONLY You are underway in a narrow channel, and are being overtaken by another power-driven vessel. The overtaking vessel sounds the signal indicating his intention to pass you on your starboard side. You signal your agreement by sounding __________.
Y a. one short blast N b. two prolonged blasts N c. two prolonged followed by two short blasts N d. one prolonged, one short, one prolonged, and one short blast in that order 44: INLAND ONLY What lights are required for a barge being pushed ahead, not being part of a composite unit?
N a. Sidelights and a stern light Y b. Sidelights and a special flashing light N c. Sidelights, a towing light, and a stern light N d. Sidelights, a special flashing light, and a stern light 119: INLAND ONLY What MAY be used to indicate the presence of a partly submerged object being towed?
N a. A black cone, apex upward N b. Two all-round yellow lights at each end of the tow Y c. The beam of a search light from the towing vessel shown in the direction of the tow N d. All of the above 194: BOTH INTERNATIONAL & INLAND You are on vessel "A" and proceeding down a narrow channel as shown. You can only navigate within the channel and vessel "B" is crossing so as to involve risk of collision. Which action would be most prudent? (DIAGRAM 40 )
N a. Back down and allow vessel "B" to cross ahead. N b. Alter course to starboard to give him more room. N c. Maintain course and speed. Y d. Sound the danger signal and take evasive action. 266: INLAND ONLY Two power-driven vessels are meeting in a narrow channel on the Great Lakes as shown. Vessel "A" is downbound with a following current. Vessel "B" shall __________. (DIAGRAM 37 )
N a. propose the manner of passage N b. have the right of way N c. initiate the maneuvering signals Y d. None of the above 284: INLAND ONLY While underway you sight the lights shown with the yellow lights flashing. The lights displayed are from a __________. (DIAGRAM 81 )
N a. vessel aground N b. mine clearance vessel N c. vessel not under command Y d. dredge pipeline 354: INTERNATIONAL ONLY Two power-driven vessels are crossing within one half mile of each other as shown. Vessel "A" sounds one short blast of the whistle. This signal means __________. (DIAGRAM 42 )
N a. "I intend to leave you on your starboard side" Y b. "I am altering my course to starboard" N c. "I am altering my course to port" N d. None of the above 4055: BOTH INTERNATIONAL & INLAND When shall the stand-on vessel change course and speed?
N a. The stand-on vessel may change course and speed at any time as it has the right-of-way N b. After the give-way vessel sounds one blast in a crossing situation Y c. When action by the give-way vessel alone cannot prevent collision N d. When the two vessels become less than half a mile apart 4063: BOTH INTERNATIONAL & INLAND There are two classes of vessels which, to the extent necessary to carry out their work, do not have to comply with the rule regarding traffic separation schemes. One of these is a vessel __________.
N a. engaged in fishing in a traffic lane Y b. servicing a submarine cable N c. towing another N d. engaged on pilotage duty 4108: BOTH INTERNATIONAL & INLAND At specified intervals, a vessel towing in fog shall sound __________.
N a. one prolonged blast N b. two prolonged blasts Y c. one prolonged and two short blasts in succession N d. one prolonged and three short blasts in succession 4136: BOTH INTERNATIONAL & INLAND The white masthead light required for a power-driven vessel under the Rules is visible over how many degrees of the horizon?
N a. 022.5° N b. 112.5° Y c. 225.0° N d. 360.0° 4151: BOTH INTERNATIONAL & INLAND While underway in fog you hear a vessel sound one prolonged blast followed by two short blasts. What does this signal indicate?
Y a. A vessel towing N b. A vessel being towed N c. A pilot vessel engaged on pilotage duty N d. A vessel aground 4193: BOTH INTERNATIONAL & INLAND A 20-meter sailing vessel underway must exhibit a __________.
Y a. stern light N b. combined lantern N c. red light over a green light at the masthead N d. All of the above 4274: BOTH INTERNATIONAL & INLAND During the day, a vessel picking up a submarine cable shall carry __________.
N a. three shapes, the highest and lowest shall be red balls, and the middle shall be a white diamond N b. two black balls N c. three shapes; the highest and lowest shall be black balls, and the middle shall be a red diamond Y d. three shapes; the highest and lowest shall be black balls and the middle shall be a black diamond 4309: BOTH INTERNATIONAL & INLAND What day-shape must be shown on a partly submerged vessel which is being towed?
Y a. A diamond N b. A cone N c. One black ball N d. Two black balls in a vertical line 4327: BOTH INTERNATIONAL & INLAND Two vessels are approaching each other near head on. What action should be taken to avoid collision?
N a. The first vessel to sight the other should give way. N b. The vessel making the slower speed should give way. Y c. Both vessels should alter course to starboard. N d. Both vessels should alter course to port. 4386: BOTH INTERNATIONAL & INLAND While underway in fog you hear a rapid ringing of a bell ahead. This bell indicates a __________.
Y a. vessel at anchor N b. vessel in distress N c. sailboat underway N d. vessel backing out of a berth 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 4418: BOTH INTERNATIONAL & INLAND When two vessels are in immediate danger of collision, the stand-on vessel must __________.
N a. abandon ship Y b. assist in taking whatever action is necessary to avoid collision N c. hold course and speed N d. sound a distress signal 4438: BOTH INTERNATIONAL & INLAND You are at anchor in fog. The fog signal of a vessel underway has been steadily growing louder and the danger of collision appears to exist. In addition to your fog signal, what signal may be used to indicate the presence of your vessel?
N a. Three blasts on the whistle; one prolonged, one short, and one prolonged. Y b. Three blasts on the whistle; one short, one prolonged, and one short. N c. Three blasts on the whistle; one prolonged followed by two short. N d. No signal other than your fog signal may be used. 4494: BOTH INTERNATIONAL & INLAND An anchored vessel on pilotage duty must show which light(s) at night?
N a. A stern light only N b. Anchor lights only N c. A white light over a red light only Y d. A white light over a red light and anchor lights 4534: BOTH INTERNATIONAL & INLAND A vessel towing where the tow prevents her from changing course shall carry __________.
N a. only the lights for a vessel towing N b. only the lights for a vessel restricted in her ability to maneuver Y c. the lights for a towing vessel and the lights for a vessel restricted in her ability to maneuver N d. the lights for a towing vessel and the lights for a vessel not under command 4613: BOTH INTERNATIONAL & INLAND Working lights shall be used to illuminate the decks of a vessel __________.
Y a. over 100 meters at anchor N b. not under command N c. constrained by her draft N d. Any of the above 4734: BOTH INTERNATIONAL & INLAND A vessel may use any sound or light signals to attract the attention of another vessel as long as __________.
N a. white lights are not used N b. red and green lights are not used Y c. the signal cannot be mistaken for a signal authorized by the Rules N d. the vessel signals such intentions over the radiotelephone 4873: BOTH INTERNATIONAL & INLAND In a crossing situation on open waters, a sailing vessel shall keep out of the way of all the following vessels EXCEPT a vessel __________.
N a. not under command N b. restricted in her ability to maneuver Y c. engaged in towing N d. fishing 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 5200: BOTH INTERNATIONAL & INLAND In a traffic separation scheme, when joining a traffic lane from the side, a vessel shall do so __________.
N a. only in case of an emergency or to engage in fishing within the zone N b. as nearly as practical at right angles to the general direction of traffic flow Y c. at as small an angle as possible N d. only to anchor within the zone 8016: INTERNATIONAL ONLY What whistle signal, if any, would be sounded when two vessels are meeting, but will pass clear starboard to starboard?
N a. One short blast N b. Two short blasts N c. Five or more short blasts Y d. No signal is required. 8078: INTERNATIONAL ONLY Vessel "A" is overtaking vessel "B" on open waters as shown and will pass without changing course. Vessel "A" __________. (DIAGRAM 17 )
Y a. need not sound any whistle signals N b. should sound two short blasts N c. should sound the danger signal N d. should sound one long blast 8118: INTERNATIONAL ONLY A signal of intent must be sounded in international waters by __________.
N a. a vessel meeting another head-on Y b. a vessel overtaking another in a narrow channel N c. a vessel crossing the course of another N d. the give-way vessel in a crossing situation