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.
5: INLAND ONLY You are overtaking a power-driven vessel in a narrow channel and wish to leave her on your starboard side. You may __________.
Y a. attempt to contact her on the radiotelephone to arrange for the passage N b. proceed to overtake her without sounding whistle signals N c. sound five short blasts N d. All of the above 85: INLAND ONLY A power-driven vessel crossing a river on the Great Lakes or Western Rivers, must keep out of the way of a power-driven vessel __________.
N a. descending the river with a tow N b. ascending the river with a tow N c. ascending the river without a tow Y d. All of the above 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 166: 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 )
Y a. SE N b. NE N c. SW N d. NW 244: BOTH INTERNATIONAL & INLAND You are on a 15-meter vessel "A" in a narrow channel as shown. Vessel "B", a large tanker which can safely navigate only within the channel, sounds five short and rapid blasts. You should __________. (DIAGRAM 32 )
N a. sound one prolonged followed by two short blasts N b. not answer the whistle signal from vessel "B" N c. maintain course and speed Y d. not impede the passage of vessel "B" 244: BOTH INTERNATIONAL & INLAND You are on a 15-meter vessel "A" in a narrow channel as shown. Vessel "B", a large tanker which can safely navigate only within the channel, sounds five short and rapid blasts. You should __________. (DIAGRAM 32 )
N a. sound one prolonged followed by two short blasts N b. not answer the whistle signal from vessel "B" N c. maintain course and speed Y d. not impede the passage of vessel "B" 262: INLAND ONLY When power-driven vessels are in sight of one another, passing signals shall be sounded when __________.
Y a. meeting or crossing within half a mile of each other N b. meeting within one mile of each other N c. meeting or crossing at any distance N d. crossing within one mile of each other 296: BOTH INTERNATIONAL & INLAND The display of lights shown could represent a __________. (DIAGRAM 48 )
N a. submarine on the surface N b. vessel constrained by her draft Y c. tug and a barge being towed astern N d. vessel not under command 336: 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 __________. (DIAGRAM 42 )
N a. maintain course and speed without sounding any signals N b. alter course to the right or slowdown Y c. sound one short blast and maintain course and speed N d. sound the danger signal and slow to moderate speed 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 4003: BOTH INTERNATIONAL & INLAND What is used to show the presence of a partly submerged object being towed?
N a. A diamond shape on the towed object N b. An all-round light at each end of the towed object N c. A searchlight from the towing vessel in the direction of the tow Y d. All of the above 4044: BOTH INTERNATIONAL & INLAND You see a vessel's green sidelight bearing due east from you. The vessel might be heading __________.
N a. east (090°) N b. northeast (045°) N c. northwest (315°) Y d. southwest (225°) 4080: BOTH INTERNATIONAL & INLAND You are underway, in fog, when you hear a whistle signal of one prolonged blast followed by two short blasts. This signal could indicate a vessel __________.
Y a. not under command N b. being towed N c. aground N d. All of the above 4210: BOTH INTERNATIONAL & INLAND A vessel being towed astern shall show at night __________.
N a. the lights required for a power-driven vessel underway N b. only the required masthead lights N c. a stern light only Y d. sidelights and a stern light 4236: BOTH INTERNATIONAL & INLAND If your vessel is underway in fog and you hear one prolonged and three short blasts, this indicates a __________.
N a. vessel not under command N b. sailing vessel N c. vessel in distress Y d. vessel being towed 4290: BOTH INTERNATIONAL & INLAND While underway in a fog you hear a signal of three strokes of a bell, a rapid ringing of the bell, and three more strokes of the bell. This signal is made by a vessel __________.
N a. at anchor and giving warning Y b. aground N c. at anchor and greater than 100 meters in length N d. not under command and at anchor 4312: BOTH INTERNATIONAL & INLAND A power-driven vessel "not under command" at night must show which lights in a vertical line?
N a. Three red Y b. Two red N c. Two white N d. Three white 4330: BOTH INTERNATIONAL & INLAND While underway in fog, you hear a short blast, a prolonged blast, and a short blast of a whistle. This signal indicates a __________.
N a. vessel towing in fog N b. sailboat underway in fog N c. vessel being towed in fog Y d. vessel anchored in fog 4342: BOTH INTERNATIONAL & INLAND The lights prescribed by the Rules shall be exhibited __________.
Y a. from sunrise to sunset in restricted visibility N b. at all times N c. from sunset to sunrise, and at no other time N d. whenever a look-out is posted 4349: BOTH INTERNATIONAL & INLAND If a vessel is engaged in fishing according to the definitions in the Rules, it will have __________.
N a. gear extending from the side or stern Y b. gear that restricts maneuverability N c. less than 50 percent trolling lines N d. None of the above 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 4399: BOTH INTERNATIONAL & INLAND Which vessel would display a cone, apex downward?
N a. A fishing vessel with outlying gear Y b. A vessel proceeding under sail and machinery N c. A vessel engaged in diving operations N d. A vessel being towed 4431: BOTH INTERNATIONAL & INLAND A vessel 50 meters in length at anchor must sound which fog signal?
Y a. 5-second ringing of a bell every minute N b. 5-second ringing of a bell every two minutes N c. 5-second sounding of a gong every minute N d. 5-second sounding of both a bell and gong every two minutes 4437: BOTH INTERNATIONAL & INLAND What is the minimum length of an anchored vessel which is required to show a white light both forward and aft?
Y a. 50 meters N b. 100 meters N c. 150 meters N d. 200 meters 4616: BOTH INTERNATIONAL & INLAND If your vessel is the stand-on vessel in a crossing situation __________.
Y a. you must keep your course and speed N b. you may change course and speed as the other vessel must keep clear N c. the other vessel must keep her course and speed N d. both vessels must keep their course and speed 4716: BOTH INTERNATIONAL & INLAND Which day-shape should a vessel being towed exhibit if the tow EXCEEDS 200 meters?
N a. A cone, apex downward N b. A cone, apex upward Y c. A diamond N d. A ball 8048: INTERNATIONAL ONLY You are underway in a narrow channel, and you are being overtaken by a vessel astern. After the overtaking vessel sounds the proper signal indicating his intention to pass your vessel on your starboard side, you signal your agreement by sounding __________.
N a. one short blast N b. two prolonged blasts N c. two prolonged followed by two short blasts Y d. one prolonged, one short, one prolonged, and one short blast in that order 8052: INTERNATIONAL ONLY Two power-driven vessels are meeting. A two blast whistle signal by either vessel means __________.
N a. "I intend to alter course to port" N b. "I desire to pass starboard to starboard" N c. "I desire to pass port to port" Y d. "I am altering course to port" 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 8120: INTERNATIONAL ONLY A light used to signal passing intentions must be an __________.
N a. all-round yellow light only Y b. all-round white light only N c. all-round blue light only N d. alternating red and yellow light