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.
27: INLAND ONLY Your vessel is meeting another vessel head-on. To comply with the rules, you should exchange __________.
N a. one short blast, alter course to port, and pass starboard to starboard Y b. one short blast, alter course to starboard, and pass port to port N c. two short blasts, alter course to port, and pass starboard to starboard N d. two short blasts, alter course to starboard, and pass port to port 69: INLAND ONLY For the purpose of the Inland Navigation Rules, the term "Inland Waters" includes __________.
Y a. the Western Rivers, extending to the COLREGS demarcation line N b. harbors and rivers to the outermost aids to navigation N c. waters along the coast of the United States to a distance of two miles offshore N d. None of the above 100: INLAND ONLY Only law enforcement vessels are permitted to show __________.
N a. two red lights in a vertical line N b. a flashing yellow light N c. an alternately flashing red and yellow light Y d. a flashing blue light 111: INLAND ONLY Which light display marks the opening in a pipeline where vessels could pass through?
Y a. Two red lights in a vertical line on each side of the opening N b. Three red lights in a vertical line on each side of the opening N c. Two yellow lights in a vertical line on each side of the opening N d. Three white lights in a vertical line on each side of the opening 113: INLAND ONLY At night, a barge moored in a slip used primarily for mooring purposes shall __________.
N a. show a flashing yellow light at each corner N b. show a white light at each corner N c. show a red light at the bow and stern Y d. not be required to be lighted 148: INLAND ONLY In a narrow channel, you are underway on vessel "A" and desire to overtake vessel "B". After you sound two short blasts on your whistle, vessel "B" sounds five short and rapid blasts on the whistle. You should __________.
N a. pass with caution on the port side of vessel "B" N b. wait for the other vessel to initiate a signal Y c. initiate another signal after the situation has stabilized N d. immediately answer with the danger signal, and then sound one short blast 158: BOTH INTERNATIONAL & INLAND The lights shown are exhibited by a vessel __________. (DIAGRAM 49 )
N a. dredging while underway Y b. not under command N c. engaged in trawling N d. engaged in mineclearance 287: BOTH INTERNATIONAL & INLAND The lead vessel shown is a __________. (DIAGRAM 24 )
N a. dredge N b. sailing vessel N c. power-driven vessel pushing ahead Y d. None of the above 314: INLAND ONLY Identify the operation indicated by the lights shown. (DIAGRAM 85 )
N a. An aircraft carrier engaged in the launching and recovery of aircraft N b. A submarine engaged in underway replenishment at sea Y c. A dredge engaged in dredging operations N d. A vessel aground assisted by tugs 324: BOTH INTERNATIONAL & INLAND Which diagram shows the arc of visibility of a green sidelight? (DIAGRAM 23 )
N a. A Y b. B N c. C N d. D 337: 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 )
Y a. one short blast N b. two short blasts N c. two prolonged blasts followed by two short blasts N d. three short blasts 355: 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 )
Y a. "I am altering my course to starboard" N b. "I intend to leave you on my port side" N c. "I am altering my course to port" N d. None of the above 4029: INLAND ONLY The masthead light may be located at other than the fore and aft centerline on a power-driven vessel __________.
N a. less than 20 meters in length Y b. less than 12 meters in length N c. which has separate sidelights carried on the outboard extremes of the vessel's breadth N d. engaged in fishing 4183: BOTH INTERNATIONAL & INLAND When anchoring a 25-meter vessel at night, you must show __________.
Y a. one all-round white light N b. two all-round white lights N c. one all-round white light and the sidelights N d. the sidelights and a stern light 4199: BOTH INTERNATIONAL & INLAND A vessel which is fishing must show sidelights and a stern light only when __________.
N a. anchored N b. underway N c. dead in the water Y d. underway and making way 4208: BOTH INTERNATIONAL & INLAND Five or more short blasts on a vessel's whistle indicates that she is __________.
Y a. in doubt that another vessel is taking sufficient action to avoid a collision N b. altering course to starboard N c. altering course to port N d. the stand-on vessel and will maintain course and speed 4372: BOTH INTERNATIONAL & INLAND You are the stand-on vessel in a crossing situation. If you think the give-way vessel is NOT taking sufficient action to avoid collision, you should sound __________.
N a. one short blast and maintain course N b. two short blasts, alter to port, and pass astern N c. no signal and maneuver at will Y d. the danger signal 4373: BOTH INTERNATIONAL & INLAND A lantern combining the two sidelights and stern light may be shown on a __________.
Y a. 10-meter sailing vessel N b. 20-meter vessel engaged in fishing and making way N c. 25-meter power-driven vessel engaged in trolling N d. 25-meter pilot vessel 4414: BOTH INTERNATIONAL & INLAND Every vessel which is directed by these Rules to keep out of the way of another vessel shall, if the circumstances of the case admit, avoid __________.
Y a. crossing ahead of the other N b. crossing astern of the other N c. passing port to port N d. passing starboard to starboard 4436: BOTH INTERNATIONAL & INLAND A white masthead light shows through an arc of how many degrees?
N a. 90° N b. 112.5° Y c. 225° N d. 360° 4444: BOTH INTERNATIONAL & INLAND Which vessel must exhibit a conical shape, apex downwards?
N a. A 10-meter vessel engaged in fishing Y b. A 15-meter vessel proceeding under sail when also being propelled by machinery N c. A 20-meter vessel restricted in her ability to maneuver N d. All of the above 4465: BOTH INTERNATIONAL & INLAND Traffic separation schemes __________.
N a. provide routing and scheduling procedures to reduce shipping delays N b. provide traffic patterns in congested areas, so that vessels can operate without having a separate lookout Y c. provide inbound and outbound lanes to promote the safe flow of vessel traffic N d. prohibit vessels carrying hazardous cargoes from entering waters that are environmentally sensitive 4505: BOTH INTERNATIONAL & INLAND Vessels of less than what length may not impede the passage of other vessels which can safely navigate only within a narrow channel or fairway?
N a. 10 meters Y b. 20 meters N c. 30 meters N d. 40 meters 4539: BOTH INTERNATIONAL & INLAND All of the following are distress signals under the Rules EXCEPT __________.
Y a. a green star signal N b. orange-colored smoke N c. red flares N d. the repeated raising and lowering of outstretched arms 4597: BOTH INTERNATIONAL & INLAND A vessel not under command shall display __________.
Y a. two red lights at night and two black balls during daylight N b. two red lights at night and three black balls during daylight N c. three red lights at night and two black balls during daylight N d. three red lights at night and three black balls during daylight 4644: BOTH INTERNATIONAL & INLAND A vessel engaged in trawling will show identification lights of __________.
N a. a red light over a white light N b. a white light over a red light Y c. a green light over a white light N d. two red lights in a vertical line 4646: BOTH INTERNATIONAL & INLAND By night, you sight the lights of a vessel engaged in underwater operations. If an obstruction exists on the port side of the vessel, it will be marked by __________.
N a. a floodlight Y b. two red lights in a vertical line N c. a single red light N d. any visible lights 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 4853: BOTH INTERNATIONAL & INLAND You are approaching another vessel on crossing courses. She is about one mile distant and is on your starboard bow. You believe she will cross ahead of you but she 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 N c. initiate a passing signal that will allow for a half mile clearance Y d. make a large course change, and slow down if necessary 8005: INTERNATIONAL ONLY You are in charge of a 250-meter freight vessel constrained by her draft proceeding down a narrow channel. There is a vessel engaged in fishing on your starboard bow half a mile away. According to Rule 9, which statement is TRUE?
N a. You are not to impede the fishing vessel. Y b. If you are in doubt as to the fishing vessel's intentions you may sound at least five short and rapid blasts on the whistle. N c. You are to slow to bare steerageway until clear of the fishing vessel. N d. You must sound one prolonged blast to alert the fishing vessel.