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.
39: INLAND ONLY Which indicates 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 beamed from the towing vessel in the direction of the tow Y d. All of the above 137: INLAND ONLY A vessel displaying an alternating red and yellow light is __________.
N a. in distress N b. enforcing the law Y c. engaged in public safety activities N d. restricted in its ability to maneuver 206: INTERNATIONAL ONLY What lights are required for a single barge being towed alongside?
Y a. Sidelights and a stern light N b. Sidelights, a special flashing light, and a stern light N c. Sidelights and a special flashing light N d. Sidelights, a towing light, and a stern light 215: INTERNATIONAL ONLY At night you sight the lights shown. What do the lights indicate? (DIAGRAM 66 )
N a. Two vessels pair trawling Y b. A tug with a tow alongside N c. A ship being assisted by a tug N d. A vessel engaged in fishing 243: INTERNATIONAL ONLY You are on vessel "A" as shown. Vessel "B" sounds two short blasts. You should __________. (DIAGRAM 32 )
N a. sound two prolonged blasts followed by two short blasts Y b. not answer the whistle signal from vessel "B" N c. sound two short blasts and maintain course and speed N d. sound one prolonged, one short, one prolonged and one short blasts 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 4042: BOTH INTERNATIONAL & INLAND A towing vessel pushing a barge ahead and rigidly connected in a composite unit shall show the lights of __________.
N a. a vessel pushing ahead Y b. a power-driven vessel, not towing N c. a barge being pushed ahead N d. either answer A or answer B 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°) 4047: BOTH INTERNATIONAL & INLAND A vessel trawling will display a __________.
N a. red light over a white light Y b. green light over a white light N c. yellow light over a red light N d. white light over a green light 4062: BOTH INTERNATIONAL & INLAND You are in charge of a power-driven vessel navigating at night. You sight the red sidelight of another vessel on your port bow. The other vessel's after masthead light is to the right of her forward masthead light. You should __________.
Y a. hold course and speed N b. alter course to port N c. stop engines N d. sound the danger signal 4099: BOTH INTERNATIONAL & INLAND During the day, a dredge will indicate the side on which it is safe to pass by displaying __________.
N a. two balls in a vertical line Y b. two diamonds in a vertical line N c. a single black ball N d. no shape is shown during the day 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 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. 4272: BOTH INTERNATIONAL & INLAND A power-driven vessel, when towing another vessel astern shall show the light(s) in Diagram __________. (DIAGRAMS 46, 54, 60 )
N a. 75 Y b. 60 N c. 54 N d. 46 4335: BOTH INTERNATIONAL & INLAND At night a vessel displaying the lights shown is __________. (DIAGRAM 82 )
N a. sailing Y b. fishing N c. a pilot boat N d. anchored 4358: BOTH INTERNATIONAL & INLAND Which vessel should not impede the navigation of a power-driven vessel?
N a. A vessel not under command N b. A vessel engaged in fishing N c. A sailing vessel Y d. A seaplane 4382: BOTH INTERNATIONAL & INLAND While underway in fog, you hear a vessel sound four short blasts in succession. What does this signal indicate?
Y a. A pilot vessel N b. A vessel being towed N c. A vessel fishing N d. A sailboat 4396: BOTH INTERNATIONAL & INLAND Concerning the identification signal for a pilot vessel, in fog, which statement is TRUE?
Y a. When at anchor, the pilot vessel is only required to sound anchor signals. N b. The identification signal must be sounded any time the pilot vessel is underway. N c. The pilot vessel may only sound the identity signal when making way. N d. All of the above 4487: BOTH INTERNATIONAL & INLAND A vessel displaying the day-shape shown is __________. (DIAGRAM 34 )
N a. towing Y b. fishing N c. anchored N d. being towed 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 4519: BOTH INTERNATIONAL & INLAND A vessel underway and making way in fog shall sound every two minutes __________.
Y a. one prolonged blast N b. two prolonged blasts N c. one prolonged blast and three short blasts N d. three distinct blasts 4553: BOTH INTERNATIONAL & INLAND Which day-shape would a vessel aground show during daylight?
N a. One black ball N b. Two black balls Y c. Three black balls N d. Four black balls 4579: BOTH INTERNATIONAL & INLAND As defined in the Rules, the term "vessel" includes __________.
N a. seaplanes N b. nondisplacement craft N c. barges Y d. All of the above 4617: BOTH INTERNATIONAL & INLAND A vessel proceeding along a narrow channel shall __________.
N a. avoid crossing the channel at right angles N b. not overtake any vessels within the channel Y c. keep as near as safe and practicable to the limit of the channel on her starboard side N d. when nearing a bend in the channel, sound a long blast of the whistle 4846: BOTH INTERNATIONAL & INLAND In determining "safe speed", the Rules list all of the following as factors which must be taken into account EXCEPT the __________.
N a. limitations of radar equipment N b. presence of background lights at night Y c. maximum horsepower of your vessel N d. maneuverability of your vessel 4866: BOTH INTERNATIONAL & INLAND If two sailing vessels are running free with the wind on the same side, which one must keep clear of the other?
N a. The one with the wind closest abeam Y b. The one to windward N c. The one to leeward N d. The one that sounds the first whistle signal 5300: BOTH INTERNATIONAL & INLAND A traffic separation zone is that part of a traffic separation scheme which __________.
N a. is located between the scheme and the nearest land Y b. separates traffic proceeding in one direction from traffic proceeding in the opposite direction N c. is designated as an anchorage area N d. contains all the traffic moving in the same direction 8062: INTERNATIONAL ONLY If you sighted three red lights in a vertical line on another vessel at night, it would be a vessel __________.
N a. aground Y b. constrained by her draft N c. dredging N d. moored over a wreck 8076: 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. two prolonged followed by two short blasts Y b. one prolonged, one short, one prolonged, and one short blast N c. one short blast N d. two prolonged blasts 8126: INTERNATIONAL ONLY A light used to signal passing intentions must be an __________.
N a. all-round white or yellow light N b. all-round yellow light only Y c. all-round white light only N d. Any colored light is acceptable.