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.
67: INLAND ONLY A power-driven vessel, when leaving a dock or berth, is required to sound __________.
N a. two short blasts N b. one long blast Y c. one prolonged blast N d. the danger signal 133: INLAND ONLY A power-driven vessel operating in a narrow channel with a following current on the Great Lakes or Western Rivers is meeting an upbound vessel. Which statement is TRUE?
Y a. The downbound vessel has the right of way. N b. The upbound vessel must initiate the required maneuvering signals. N c. The upbound vessel must propose the manner of passing. N d. All of the above 135: BOTH INTERNATIONAL & INLAND You are on a 30-meter trawler. Which day signal must you show while trawling? (DIAGRAM 16 )
N a. A N b. B Y c. C N d. None of these day signals are correct. 136: INLAND ONLY Yellow lights are NOT used to identify __________.
N a. a dredge pipeline on a trestle N b. the heads of tows being pushed ahead by tugboats N c. purse seiners Y d. a seaplane on the water 150: INLAND ONLY A power-driven vessel, when leaving a dock or berth, must sound what signal?
N a. Three short blasts N b. A long blast Y c. A prolonged blast N d. No signal is required. 214: INTERNATIONAL ONLY At night, you sight the lights shown. What do the lights indicate? (DIAGRAM 55 )
N a. A vessel fishing at anchor Y b. A tug with a tow alongside N c. A tug not under command N d. A pipeline 225: 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. One N b. None N c. One, on the near approach of another vessel Y d. Two 251: INLAND ONLY Vessels "A" and "B" are meeting on a river as shown and will pass about 1/4 mile apart. Which action should the vessels take? (DIAGRAM 41 )
N a. The vessels should continue on course and pass without sounding any whistle signals. Y b. The vessels should exchange two blast whistle signals and pass starboard to starboard. N c. The vessels should exchange one blast whistle signals and pass starboard to starboard N d. The vessels should pass starboard to starboard and must sound whistle signals only if either vessel changes course. 272: BOTH INTERNATIONAL & INLAND Two vessels are meeting as shown in a narrow channel. Vessel "A" is a sailing vessel. Vessel "B" is a power-driven vessel which can safely navigate only within the channel. Vessel "B" sounds the danger signal. Vessel "A" shall __________. (DIAGRAM 37 )
N a. maintain course and speed Y b. not impede the passage of vessel "B" N c. sound one prolonged followed by two short blasts N d. have the right of way 301: BOTH INTERNATIONAL & INLAND A vessel displaying the lights shown is a vessel __________. (DIAGRAM 79 )
N a. engaged in submarine operations N b. dredging N c. engaged in fishing Y d. towing astern 377: BOTH INTERNATIONAL & INLAND You are on a vessel heading due north and see the lights shown one point on your port bow. This vessel could be heading __________. (DIAGRAM 51 )
N a. NW Y b. SE N c. SW N d. NW 394: 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 Y c. sailing vessel N d. power-driven vessel 4021: BOTH INTERNATIONAL & INLAND A light signal of three flashes means __________.
N a. "I am in doubt as to your actions" N b. "My engines are full speed astern" N c. "I desire to overtake you" Y d. "I am operating astern propulsion" 4046: BOTH INTERNATIONAL & INLAND You are underway on vessel "A" and sight vessel "B" which is a vessel underway and fishing as shown. Which statement is true? (DIAGRAM 14 )
N a. Vessel "A" must keep out of the way of vessel "B" because "B" is to port. Y b. Vessel "A" must keep out of the way of vessel "B" because "B" is fishing. N c. Vessel "B" must keep out of the way of vessel "A" because "A" is to starboard. N d. In this case, both vessels are required by the Rules to keep clear of each other. 4052: BOTH INTERNATIONAL & INLAND The lights displayed would be shown by a vessel which is __________. (DIAGRAM 44 )
Y a. aground N b. not under command and is dead in the water N c. not under command and is making way N d. laying or picking up navigation marks 4088: BOTH INTERNATIONAL & INLAND The term "restricted visibility" as used in the Rules refers __________.
N a. only to fog N b. only to visibility of less than one-half of a mile N c. to visibility where you cannot see shore Y d. to any condition where visibility is restricted 4133: BOTH INTERNATIONAL & INLAND Which statement is TRUE when you are towing more than one barge astern at night?
N a. Only the last barge in the tow must be lighted. N b. Only the first and last barges in the tow must be lighted. Y c. All barges in the tow must be lighted. N d. All barges, except unmanned barges, must be lighted. 4142: BOTH INTERNATIONAL & INLAND A vessel engaged in fishing must display a light in the direction of any gear that extends outward more than 150 meters. The color of this light is __________.
Y a. white N b. green N c. red N d. yellow 4161: BOTH INTERNATIONAL & INLAND A continuous sounding of a fog-signal apparatus indicates __________.
Y a. the vessel is in distress N b. the vessel has completed loading dangerous cargo N c. it is safe to pass N d. the vessel is anchored 4241: BOTH INTERNATIONAL & INLAND A tug is towing three manned barges in line in fog. The first vessel of the tow should sound __________.
Y a. no fog signal N b. one short blast N c. one prolonged and three short blasts N d. one prolonged, one short, and one prolonged blast 4273: BOTH INTERNATIONAL & INLAND Which vessel is NOT classified as "restricted in her ability to maneuver"?
N a. A vessel picking up a navigation mark N b. A vessel transferring cargo while underway Y c. A vessel whose anchor is fouled N d. A vessel in a towing operation that restricts the ability of the vessel and her tow to change their course 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 4325: BOTH INTERNATIONAL & INLAND A vessel aground in fog shall sound, in addition to the proper anchor signal, which of the following?
N a. Three strokes on the gong before and after sounding the anchor signal Y b. Three strokes on the bell before and after the anchor signal N c. Four short blasts on the whistle N d. One prolonged and one short blast on the whistle 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 4403: BOTH INTERNATIONAL & INLAND What day-shape must be shown by a vessel over 20 meters fishing which has gear extending more than 150 meters horizontally outward from it?
N a. One black ball N b. One diamond shape Y c. One cone with its apex upwards N d. One basket 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 4634: BOTH INTERNATIONAL & INLAND Your tug is underway at night and NOT towing. What light(s) should your vessel show aft to other vessels coming up from astern?
Y a. One white light N b. Two white lights N c. One white light and one yellow light N d. One white light and two yellow lights 4690: BOTH INTERNATIONAL & INLAND Which vessel would sound a fog signal consisting of the ringing of a bell for 5 seconds?
N a. A vessel engaged in fishing, at anchor N b. A vessel restricted in its ability to maneuver, at anchor Y c. A sailing vessel, at anchor N d. All of the above 4695: BOTH INTERNATIONAL & INLAND While underway in fog, you hear a vessel ahead sound two short blasts on the whistle. You should __________.
N a. not sound any whistle signals until the other vessel is sighted Y b. sound only fog signals until the other vessel is sighted N c. sound whistle signals only if you change course N d. sound two short blasts and change course to the left 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