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.
3: 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" Y b. hold your relative position, and then sound another signal after the situation has stabilized N c. answer the five short blast signal then stop your vessel until the other vessel initiates a signal N d. slow or stop and expect radical maneuvers from "B" 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 23: INLAND ONLY Passing signals shall be sounded on inland waters by __________.
N a. all vessels upon sighting another vessel rounding a bend in the channel N b. towing vessel when meeting another towing vessel on a clear day with a 0.6 mile CPA (Closest Point of Approach) Y c. a power-driven vessel when crossing less than half a mile ahead of another power-driven vessel N d. All of the above 209: INLAND ONLY A single vessel being towed alongside shall show __________.
N a. one all-round white light N b. sidelights and a stern light N c. only the outboard sidelight and a stern light Y d. a special flashing light, sidelights, and a stern light 230: BOTH INTERNATIONAL & INLAND Vessel "A" is overtaking vessel "B" as shown. Vessel "B" is the __________. (DIAGRAM 17 )
Y a. stand-on vessel N b. give-way vessel N c. burdened vessel N d. None of the above 283: INLAND ONLY While underway you sight the lights shown with the yellow lights flashing. The lights displayed are from a __________. (DIAGRAM 81 )
N a. seaplane N b. minesweeper Y c. dredge pipeline N d. vessel not under command 326: BOTH INTERNATIONAL & INLAND Diagram "A" shows the arc of visibility of a __________. (DIAGRAM 23 )
N a. white masthead light Y b. red sidelight N c. green sidelight N d. stern light 3683: BOTH INTERNATIONAL & INLAND The rules require that a stand-on vessel SHALL take action to avoid collision when she determines that __________.
N a. risk of collision exists N b. the other vessel will cross ahead of her N c. the other vessel is not taking appropriate action Y d. collision cannot be avoided by the give-way vessel's maneuver alone 4024: BOTH INTERNATIONAL & INLAND The word "vessel", in the Rules, includes __________.
N a. sailing ships N b. nondisplacement craft N c. seaplanes Y d. All of the above 4128: BOTH INTERNATIONAL & INLAND Which display indicates a vessel conducting mineclearance operations?
N a. Three balls in a vertical line N b. Two balls in a vertical line Y c. One ball near the foremast and one ball at each yardarm N d. One diamond near the foremast and one ball at each yardarm 4165: BOTH INTERNATIONAL & INLAND Which statement is TRUE of a 30-meter sailing vessel underway?
Y a. She must show sidelights and a stern light in restricted visibility. N b. She may show an all-round white light at the top of the mast. N c. She need not show a stern light if she is showing all-round lights on the mast. N d. If she is using propelling machinery, she shall show forward a shape consisting of two cones, apexes together. 4226: BOTH INTERNATIONAL & INLAND Which day-shape must be shown by a vessel 25 meters in length aground during daylight hours?
N a. One black ball N b. Two black balls Y c. Three black balls N d. Four black balls 4251: BOTH INTERNATIONAL & INLAND At night, if you see a vessel ahead displaying the lights shown you should __________. (DIAGRAM 70 )
N a. provide assistance as the vessel is in distress N b. stay clear as the vessel is transferring dangerous cargo Y c. stay clear as the vessel is fishing N d. change course to the right as the vessel is crossing your bow 4270: BOTH INTERNATIONAL & INLAND A vessel displaying the lights shown is a __________. (DIAGRAM 70 )
N a. pilot boat N b. sailboat Y c. fishing vessel N d. motorboat 4302: BOTH INTERNATIONAL & INLAND A vessel nearing a bend or an area of a channel or fairway where other vessels may be obscured by an intervening obstruction shall sound __________.
N a. one long blast Y b. one prolonged blast N c. the danger signal N d. two short blasts 4303: BOTH INTERNATIONAL & INLAND In fog, you hear apparently forward of your beam a fog signal of 2 prolonged blasts in succession every two minutes. This signal indicates a __________.
N a. power-driven vessel making way through the water N b. vessel being pushed ahead N c. vessel restricted in her ability to maneuver Y d. power-driven vessel underway but stopped and making no way through the water 4329: BOTH INTERNATIONAL & INLAND Your vessel is 25 meters long and anchored in restricted visibility. You are required to sound the proper fog signal at intervals of not more than __________.
N a. 30 seconds Y b. one minute N c. two minutes N d. three minutes 4351: BOTH INTERNATIONAL & INLAND Two power-driven vessels are crossing so as to involve risk of collision. Which statement is TRUE, according to the Rules?
N a. The vessel which has the other on her own port side shall keep out of the way. Y b. If the stand-on vessel takes action, she shall avoid changing course to port. N c. If the give-way vessel takes action, she shall avoid changing course to starboard. N d. The give-way vessel should keep the other vessel to her starboard. 4394: BOTH INTERNATIONAL & INLAND A partly submerged vessel or object being towed, which is not readily noticeable, 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 4400: BOTH INTERNATIONAL & INLAND When action to avoid a close quarters situation is taken, a course change alone may be the most effective action provided that __________.
N a. it is done in a succession of small course changes N b. it is NOT done too early Y c. it is a large course change N d. the course change is to starboard 4494: BOTH INTERNATIONAL & INLAND An anchored vessel on pilotage duty must show which light(s) at night?
N a. A stern light only N b. Anchor lights only N c. A white light over a red light only Y d. A white light over a red light and anchor lights 4535: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning the danger signal?
N a. May be sounded by the stand-on vessel only N b. Indicates that the vessel is in distress N c. Is used to indicate a course change Y d. May be supplemented by an appropriate light signal 4574: BOTH INTERNATIONAL & INLAND Which vessel shall NOT show her sidelights?
Y a. A fishing vessel that is not making way N b. A sailing vessel which is becalmed N c. A vessel engaged in underwater operations N d. A vessel that is not under command making way 4605: BOTH INTERNATIONAL & INLAND When two power-driven vessels are meeting head-on and there is a risk of collision, each shall __________.
N a. stop her engines Y b. alter course to starboard N c. sound the danger signal N d. back down 4661: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning a towing vessel which, due to the nature of her work, is unable to keep out of the way of another vessel?
N a. By day, she shall carry a black cylinder shape. N b. By day, she shall carry two black balls in a vertical line. N c. By night, she would show the same lights as a vessel not under command. Y d. By day, she would show the same shapes as a vessel restricted in her ability to maneuver. 4770: BOTH INTERNATIONAL & INLAND While underway in fog, you hear a vessel ahead sound two prolonged blasts on the whistle. You should __________.
N a. sound two blasts and change course to the left N b. sound whistle signals only if you change course N c. not sound any whistle signals until the other vessel is sighted Y d. sound only fog signals until the other vessel is sighted 4850: BOTH INTERNATIONAL & INLAND The Rules state that risk of collision shall be deemed to exist __________.
N a. whenever two vessels are on opposite courses N b. whenever a vessel crosses ahead of the intended track of another vessel Y c. if the bearing of an approaching vessel does not appreciably change N d. if one vessel approaches another so as to be overtaking 4863: BOTH INTERNATIONAL & INLAND A sailing vessel is proceeding along a narrow channel and can safely navigate ONLY inside the channel. The sailing vessel approaches a vessel engaged in fishing. Which statement is TRUE?
N a. The fishing vessel must sound the danger signal. Y b. The fishing vessel shall not impede the passage of the sailing vessel. N c. Each vessel should move to the edge of the channel on her port side. N d. Both vessels should be displaying the signal for a vessel restricted in her ability to maneuver. 8040: INTERNATIONAL ONLY Which vessel may NOT exhibit two red lights in a vertical line?
Y a. A vessel constrained by her draft N b. A trawler fishing in close proximity to other trawlers N c. A vessel aground N d. A dredge 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"