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.
59: INLAND ONLY When power-driven vessels are in a crossing situation, one short blast by either vessel would mean __________.
Y a. "I intend to leave you on my port side" N b. "I intend to hold course and speed" N c. "I intend to change course to starboard" N d. "I request a departure from the rules" 96: INLAND ONLY You are approaching a sharp bend in a river. You have sounded a prolonged blast and it has been answered by a vessel on the other side of the bend. Which statement is TRUE?
Y a. Both vessels must exchange passing signals when in sight and passing within one-half mile of each other. N b. No further whistle signals are necessary. N c. The vessel downriver must stop her engines and navigate with caution. N d. Both vessels must immediately sound passing signals whether or not they are in sight of each other. 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 181: BOTH INTERNATIONAL & INLAND At night, you see the display of lights shown. They indicate a(n) __________. (DIAGRAM 74 )
Y a. sailing vessel N b. 8-meter power-driven vessel N c. vessel not under command N d. 12-meter fishing vessel 226: INLAND ONLY While underway and in sight of another vessel a mile ahead you put your engines on astern propulsion. Which statement concerning whistle signals is TRUE?
N a. You must sound three short blasts on the whistle. N b. You must sound one blast if backing to starboard. N c. You must sound whistle signals only if the vessels are meeting. Y d. You need not sound any whistle signals. 268: INLAND ONLY Two power-driven vessels are meeting in the situation as shown and will pass within 1/2 mile of each other. Two short blasts from either vessel means __________. (DIAGRAM 37 )
Y a. "I intend to leave you on my starboard side." N b. "I intend to leave you on my port side." N c. "I am altering my course to port." N d. "I am altering my course to starboard." 343: 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. This signal means __________. (DIAGRAM 42 )
N a. "I intend to leave you on my starboard side" Y b. "I intend to leave you on my port side" N c. "I am altering my course to starboard" N d. None of the above 4013: BOTH INTERNATIONAL & INLAND A vessel displaying the day-shapes shown is __________. (DIAGRAM 11 )
N a. towing N b. conducting underwater operations N c. drifting Y d. aground 4112: BOTH INTERNATIONAL & INLAND A vessel, which is unable to maneuver due to some exceptional circumstance, shall exhibit __________.
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, two all-round red lights, sidelights, and a stern light N d. when making way at night, masthead lights, sidelights, and a stern light 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. 4190: BOTH INTERNATIONAL & INLAND A power-driven vessel making way through the water sounds a fog signal of __________.
Y a. one prolonged blast at intervals of not more than two minutes N b. two prolonged blasts at intervals of not more than two minutes N c. one prolonged blast at intervals of not more than one minute N d. two prolonged blasts at intervals of not more than one minute 4215: BOTH INTERNATIONAL & INLAND An inconspicuous, partly submerged vessel or object being towed, where the length of tow is 100 meters, 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 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. 4341: BOTH INTERNATIONAL & INLAND On open water, a vessel fishing is in a crossing situation with a vessel sailing located on the fishing vessel's starboard side. Which vessel is the stand-on vessel?
N a. The fishing vessel because it is to port of the sailing vessel. Y b. The fishing vessel because it is fishing. N c. The sailing vessel because it is to starboard of the fishing vessel. N d. The sailing vessel because it is sailing. 4455: BOTH INTERNATIONAL & INLAND Which vessel is "underway" within the meaning of the Rules?
N a. A vessel at anchor with the engine turning N b. A vessel tied to an offshore mooring buoy N c. A vessel aground with the engine turning Y d. A vessel drifting with the engine stopped 4507: BOTH INTERNATIONAL & INLAND The lights required by the Rules must be shown __________.
Y a. from sunrise to sunset in restricted visibility N b. at all times N c. ONLY from sunset to sunrise N d. whenever a look-out is posted 4528: BOTH INTERNATIONAL & INLAND Which vessel is to sound a fog signal of one prolonged followed by two short blasts?
N a. A vessel not under command N b. A sailing vessel, underway N c. A vessel restricted in her ability to maneuver when carrying out her work at anchor Y d. All of the above 4529: BOTH INTERNATIONAL & INLAND A vessel may exhibit lights other than those prescribed by the Rules as long as the additional lights __________.
Y a. do not interfere with the keeping of a proper look-out N b. are not the color of either sidelight N c. have a lesser range than the prescribed lights N d. All of the above 4536: BOTH INTERNATIONAL & INLAND If a sailing vessel with the wind on the port side sees a sailing vessel to windward and cannot tell whether the other vessel has the wind on the port or starboard side, she shall __________.
N a. hold course and speed N b. sound the danger signal Y c. keep out of the way of the other vessel N d. turn to port and come into the wind 4541: BOTH INTERNATIONAL & INLAND The Rules state that vessels may depart from the Rules when __________.
N a. there are no other vessels around N b. operating in a narrow channel N c. the Master enters it in the ship's log Y d. necessary to avoid immediate danger 4552: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning fog signals?
N a. All fog signals for sailing vessels are to be given at intervals of not more than one minute. N b. A vessel not under command sounds the same fog signal as a vessel towed. N c. A pilot vessel underway and making way sounds the pilot identity signal and no other signal. Y d. A vessel aground may sound a whistle signal. 4558: BOTH INTERNATIONAL & INLAND The stern light shall be positioned such that it will show from dead astern to how many degrees on each side of the stern of the vessel?
N a. 22.5° Y b. 67.5° N c. 112.5° N d. 135.0° 4664: BOTH INTERNATIONAL & INLAND You are approaching a narrow channel. You see a vessel that can only be navigated safely within the channel. You MUST __________.
N a. hold your course and speed N b. sound the danger signal Y c. not cross the channel if you might impede the other vessel N d. initiate an exchange of passing signals 4671: BOTH INTERNATIONAL & INLAND Which statement is true concerning the light used to accompany whistle signals?
Y a. It is only used to supplement short blasts of the whistle. N b. It is mandatory to use such a light. N c. The light shall have the same characteristics as a masthead light. N d. All of the above 4876: BOTH INTERNATIONAL & INLAND You are approaching a narrow channel. Another vessel in the channel can only be navigated safely in that channel. You should __________.
N a. sound two prolonged blasts followed by one short blast Y b. not cross the channel if you might impede the other vessel N c. sound three short blasts, and take all way off your vessel N d. hold your course and speed if he is on your port bow 8010: INTERNATIONAL ONLY A vessel displaying three red lights in a vertical line is __________.
N a. not under command N b. aground N c. dredging Y d. constrained by her draft 8051: INTERNATIONAL ONLY A vessel constrained by her draft may display __________.
Y a. three all-round red lights N b. two 225° red lights N c. three all-round blue lights N d. two 225° blue lights 8105: INTERNATIONAL ONLY Your vessel is crossing a narrow channel. A vessel to port is within the channel and crossing your course. She is showing a black cylinder. You should __________.
N a. hold your course and speed Y b. not impede the other vessel N c. exchange passing signals N d. sound the danger signal 8127: INTERNATIONAL ONLY Which statement is TRUE, according to the Rules?
N a. A vessel constrained by her draft shall keep out of the way of a vessel engaged in fishing. Y b. A vessel engaged in fishing while underway shall, so far as possible, keep out of the way of a vessel restricted in her ability to maneuver. N c. A vessel not under command shall avoid impeding the safe passage of a vessel constrained by her draft. N d. A vessel not under command shall keep out of the way of a vessel restricted in her ability to maneuver. 8131: INTERNATIONAL ONLY What characteristic must a light have if used to signal passing intentions?
Y a. It must be an all-round white light. N b. It must be an alternating blue and white light. N c. It must be an all-round white or yellow light. N d. It must be an alternating red and yellow light.