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.
6: INLAND ONLY A vessel displaying a flashing blue light is __________.
N a. transferring dangerous cargo Y b. a law enforcement vessel N c. a work boat N d. engaged in a race 91: 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 over 200 meters in length? (DIAGRAM 16 )
N a. A Y b. B N c. C N d. No day-shape would be shown. 132: INLAND ONLY Which statement is TRUE of a power-driven vessel proceeding downbound with the current, when meeting an upbound vessel on the Western Rivers?
N a. She shall not impede the upbound vessel. N b. She shall pass on the port side of the other. Y c. She shall propose the manner of passage. N d. All of the above 138: INLAND ONLY A law enforcement vessel patrolling a marine regatta may show either a flashing blue light or __________.
N a. two amber lights in a horizontal line Y b. an alternately flashing red and yellow light N c. a high intensity flashing white light (strobe) N d. a fixed green light over a red flashing light 198: INTERNATIONAL ONLY You are on a vessel that cannot comply with the spacing requirement for masthead lights. What is required in this situation?
N a. The vessel must carry only the lights that comply with the rules; the others may be omitted. Y b. The vessel's lights must comply as closely as possible, as determined by her government. N c. The vessel must be altered to permit full compliance with the rules. N d. An all-round light should be substituted for the after masthead light and the stern light. 275: INLAND ONLY While underway you sight the lights shown with the yellow lights flashing, you should __________. (DIAGRAM 81 )
N a. wait until the vessel ahead crosses your bow Y b. pass between the two sets of vertical red lights N c. stop until the red lights turn green N d. proceed leaving all the lights on your starboard side 277: INLAND ONLY While underway you sight the lights shown with the yellow lights flashing. The lights displayed should be __________. (DIAGRAM 81 )
Y a. visible at night and during periods of restricted visibility N b. visible for at least one mile N c. more than 50 meters apart N d. flashing at intervals of 120 flashes per minute 298: BOTH INTERNATIONAL & INLAND A vessel displaying the lights shown is a(n) __________. (DIAGRAM 79 )
N a. vessel constrained by her draft N b. law enforcement vessel N c. vessel not under command Y d. vessel towing astern 4004: BOTH INTERNATIONAL & INLAND At night, a barge being towed astern must display __________.
N a. red and green sidelights only N b. a white stern light only Y c. sidelights and a stern light N d. one all-round white light 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 4229: BOTH INTERNATIONAL & INLAND You are crossing a narrow channel in a 15-meter vessel when you sight a tankship off your port bow coming up the channel. Which statement is TRUE?
N a. Yours is the give-way vessel because it is less than 30 meters long. Y b. You shall not impede the safe passage of the tankship. N c. The tankship is the stand-on vessel because it is to port of your vessel. N d. The tankship is the stand-on vessel because it is the larger of the two vessels. 4239: BOTH INTERNATIONAL & INLAND You are on a vessel nearing a bend in the channel where, because of the height of the bank, you cannot see a vessel approaching from the opposite direction. You should sound __________.
N a. one short blast Y b. one prolonged blast N c. one long blast N d. five or more short blasts 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 4352: BOTH INTERNATIONAL & INLAND What is the minimum vessel length which must show two white masthead lights, one forward and one aft, when underway at night?
N a. 7 meters N b. 20 meters Y c. 50 meters N d. 100 meters 4357: BOTH INTERNATIONAL & INLAND A vessel 15 meters in length which is proceeding under sail as well as being propelled by machinery shall exhibit during the daytime __________.
N a. one black ball N b. a basket Y c. a cone with its apex downward N d. two cones with their apexes together 4393: BOTH INTERNATIONAL & INLAND Which light(s) is(are) AMONG those shown by a 200-meter vessel at anchor?
N a. In the forepart of the vessel, a 225° white light N b. In the after part of the vessel, a 135° white light Y c. Any available working lights to illuminate the decks N d. In the fore part of the vessel, a 135° white light 4409: BOTH INTERNATIONAL & INLAND A vessel or object being towed astern shall display a(n) __________.
N a. forward masthead light N b. after masthead light Y c. stern light N d. All of the above 4435: BOTH INTERNATIONAL & INLAND Which procedure(s) shall be used to determine risk of collision?
N a. Watching the compass bearing of an approaching vessel N b. Systematic observation of objects detected by radar N c. Long-range radar scanning Y d. All of the above 4454: BOTH INTERNATIONAL & INLAND In a crossing situation, a stand-on vessel which is forced to take action in order to avoid collision with a vessel on her own port side shall, if possible, avoid __________.
Y a. turning to port N b. turning to starboard N c. decreasing speed N d. increasing speed 4544: BOTH INTERNATIONAL & INLAND You are approaching another vessel on crossing courses. She is approximately half a mile distant and is presently on your starboard bow. You believe she will cross ahead of you. She then sounds a whistle signal of five short blasts. You should __________.
N a. answer the signal and hold course and speed N b. reduce speed slightly to make sure she will have room to pass Y c. make a large course change, accompanied by the appropriate whistle signal, and slow down if necessary N d. wait for another whistle signal from the other vessel 4586: BOTH INTERNATIONAL & INLAND What describes a head-on situation?
N a. Seeing one red light of a vessel directly ahead N b. Seeing two forward white towing lights in a vertical line on a towing vessel directly ahead N c. Seeing both sidelights of a vessel directly off your starboard beam Y d. Seeing both sidelights of a vessel directly ahead 4611: BOTH INTERNATIONAL & INLAND A vessel, which does not normally engage in towing operations, is towing a vessel in distress. She __________.
Y a. need not show the lights for a vessel engaged in towing, if it is impractical to do so N b. may show the lights for a vessel not under command N c. must show a yellow light above the stern light N d. must show the lights for a vessel towing 4641: BOTH INTERNATIONAL & INLAND Which vessel must exhibit forward and after white masthead lights when making way?
Y a. A 75-meter vessel restricted in her ability to maneuver N b. A 100-meter sailing vessel N c. A 150-meter vessel engaged in fishing N d. A 45-meter vessel engaged in towing 4708: BOTH INTERNATIONAL & INLAND At night, a vessel displaying the lights shown is __________. (DIAGRAM 52 )
N a. at anchor N b. aground Y c. underway N d. dredging 4721: BOTH INTERNATIONAL & INLAND Which vessel when anchored at night, would not be required to show anchor lights?
Y a. A vessel engaged in underwater operations N b. A vessel engaged in mine clearance N c. A vessel engaged on pilotage duty N d. A vessel engaged in survey operations 4819: BOTH INTERNATIONAL & INLAND Which breadth shown represents the breadth as defined in the Rules? (DIAGRAM 87 )
Y a. A N b. B N c. C N d. D 4830: 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 N b. does not have a proper look-out N c. by taking action contrary to the Rules has created a special circumstance situation Y d. through some exceptional circumstance is unable to maneuver as required by the Rules 4848: BOTH INTERNATIONAL & INLAND The Rules state that certain factors are to be taken into account when determining safe speed. One of the factors is the __________.
N a. radio communications that are available N b. maximum speed of your vessel N c. temperature Y d. current 4868: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning two sailing vessels approaching each other?
N a. The vessel making the most speed is the give-way vessel. Y b. A sailing vessel overtaking another is the give-way vessel. N c. A sailing vessel seeing another to leeward on an undetermined tack shall hold her course. N d. All of the above 8081: INTERNATIONAL ONLY The light which may be used with a vessel's whistle must be __________.
N a. used when the whistle is broken Y b. a white light N c. used only at night N d. used prior to sounding the whistle