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" 4: INLAND ONLY A vessel proceeding downstream in a narrow channel on the Western Rivers sights another vessel moving upstream. Which vessel has the right of way?
N a. The vessel moving upstream against the current Y b. The vessel moving downstream with a following current N c. The vessel located more towards the channel centerline N d. The vessel sounding the first whistle signal 41: INLAND ONLY Two vessels in a crossing situation have reached agreement by radiotelephone as to the intentions of the other. In this situation, whistle signals are __________.
N a. required Y b. not required, but may be sounded N c. required if crossing within half a mile N d. required when crossing within one mile 66: INLAND ONLY A towing vessel pushing ahead on the Western Rivers above the Huey P. Long bridge must show __________.
N a. sidelights only Y b. sidelights and towing lights N c. sidelights, towing lights, and two masthead lights N d. sidelights, towing lights, and three masthead lights 91: BOTH INTERNATIONAL & INLAND Which of the day-shapes shown would you show on the after end of an inconspicuous partially submerged vessel or object being towed over 200 meters in length? (DIAGRAM 16 )
N a. A Y b. B N c. C N d. No day-shape would be shown. 125: INLAND ONLY Under the Inland Navigation Rules, the term "Inland Waters" includes __________.
N a. any waters marked by U.S. aids to navigation N b. harbors and rivers to the outermost aids to navigation N c. waters along the coast of the United States to a distance of two miles offshore Y d. the Western Rivers, extending to the COLREGS demarcation line 139: INTERNATIONAL ONLY Which day-shape must you show on the forward end of an inconspicuous partially submerged vessel or object being towed more than 200 meters in length? (DIAGRAM 16 )
N a. A Y b. B N c. D N d. No day-shape must be shown. 143: INLAND ONLY A light used to signal passing intentions must be an __________.
N a. alternating red and yellow light N b. alternating white and yellow light Y c. all-round white or yellow light N d. all-round white light only 156: BOTH INTERNATIONAL & INLAND You are underway at night and you sight the lights shown. You know these lights indicate a(n) _________________________ (DIAGRAM 47 )
N a. vessel towing astern Y b. sailing vessel N c. submarine operating on the surface N d. vessel pushing a barge ahead 218: INLAND ONLY Your tug is pushing a barge ahead at night. What light(s) should show aft on your vessel? DIAGRAMS60,75,46,70
N a. The light(s) in Diagram 60. Y b. The light(s) in Diagram 75. N c. The light(s) in Diagram 46. N d. The light(s) in Diagram 70. 263: INTERNATIONAL ONLY You are on a power-driven vessel "I" as shown. Vessel "II" is a vessel engaged in fishing within 1/2 a mile of your vessel. Which action should you take? (DIAGRAM 36 )
N a. Hold course and speed without giving a signal. Y b. Change course or speed to avoid vessel "II". N c. Sound one short blast, and await a response. N d. Sound two short blasts, and await a response. 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" 4038: BOTH INTERNATIONAL & INLAND A bell is used to sound a fog signal for a __________.
N a. power-driven vessel underway Y b. sailing vessel at anchor N c. vessel engaged in fishing N d. vessel not under command 4067: BOTH INTERNATIONAL & INLAND At night, which lights are required to be shown by a dredge on the side of the dredge which another vessel may pass?
N a. One red light N b. Two red lights N c. One white light Y d. Two green lights 4113: BOTH INTERNATIONAL & INLAND Which signal, other than a distress signal, can be used by a vessel to attract attention?
Y a. Searchlight beam N b. Continuous sounding of a fog signal apparatus N c. Burning barrel N d. Orange smoke signal 4119: BOTH INTERNATIONAL & INLAND A lantern combining a vessel's navigation lights may be shown on a __________.
Y a. 15-meter sailing vessel N b. 20-meter vessel engaged in fishing and making way N c. 25-meter power-driven vessel trolling N d. 25-meter pilot vessel 4176: BOTH INTERNATIONAL & INLAND Two all-round red lights displayed in a vertical line are shown by a vessel __________.
N a. being towed N b. pushing a barge ahead N c. at anchor Y d. not under command 4187: BOTH INTERNATIONAL & INLAND In a crossing situation on open waters, a sailing vessel shall keep out of the way of all the following vessels EXCEPT a __________.
N a. vessel not under command N b. vessel restricted in her ability to maneuver Y c. power-driven vessel approaching on her starboard side N d. vessel fishing 4192: BOTH INTERNATIONAL & INLAND In restricted visibility, a vessel fishing with nets shall sound at intervals of two minutes __________.
N a. one prolonged blast Y b. one prolonged followed by two short blasts N c. one prolonged followed by three short blasts N d. two prolonged blasts in succession 4207: BOTH INTERNATIONAL & INLAND Your power-driven vessel is underway when you sight a sailing vessel on your port bow. Which vessel is the "stand-on" vessel?
N a. The sailboat, because it is to port of your vessel Y b. The sailboat, because it is under sail N c. Your vessel, because it is a power-driven vessel N d. Your vessel, because it is to starboard of the sailboat 4327: BOTH INTERNATIONAL & INLAND Two vessels are approaching each other near head on. What action should be taken to avoid collision?
N a. The first vessel to sight the other should give way. N b. The vessel making the slower speed should give way. Y c. Both vessels should alter course to starboard. N d. Both vessels should alter course to port. 4336: BOTH INTERNATIONAL & INLAND While underway and in sight of another vessel crossing less than .5 mile away, you put your engines full speed astern. Which statement concerning whistle signals is TRUE?
Y 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. N d. You need not sound any whistle signals. 4390: BOTH INTERNATIONAL & INLAND What lights must sailboats show when underway at night?
N a. One all-round white light N b. A stern light N c. Red and green sidelights Y d. Red and green sidelights and a stern light 4481: BOTH INTERNATIONAL & INLAND While underway in fog, you hear the rapid ringing of a bell for about five seconds followed by the sounding of a gong for about five seconds. This signal came from a __________.
N a. vessel engaged in fishing at anchor N b. sailing vessel at anchor Y c. vessel 150 meters in length at anchor N d. vessel aground 4520: BOTH INTERNATIONAL & INLAND When anchoring a 20-meter vessel at night, you must show __________.
Y a. one all-round white light N b. two all-round white lights N c. one all-round white light and the stern light N d. one all-round white light and a flare up light 4684: BOTH INTERNATIONAL & INLAND You see a red sidelight bearing NW (315°). That vessel may be heading __________.
N a. northwest (315°) N b. east (090°) Y c. southwest (225°) N d. west (270°) 4842: BOTH INTERNATIONAL & INLAND Which vessel is "underway" according to the Rules?
N a. A vessel made fast to a single point mooring buoy Y b. A vessel engaged in towing, not making way N c. A pilot vessel at anchor N d. A vessel which has run aground 5400: BOTH INTERNATIONAL & INLAND A vessel using a traffic separation scheme shall NOT __________.
N a. cross a traffic lane N b. engage in fishing the separation zone Y c. proceed in an inappropriate traffic lane N d. enter the separation zone 8080: INTERNATIONAL ONLY Which signal is sounded ONLY by a vessel in sight of another?
Y a. One short blast on the whistle N b. Four short blasts on the whistle N c. One prolonged blast on the whistle N d. One short, one prolonged, and one short blast on the whistle 8096: INTERNATIONAL ONLY A vessel constrained by her draft may display __________.
N a. three all-round red lights instead of the lights required for a power-driven vessel of her class N b. the same lights as a vessel restricted in her ability to maneuver Y c. three all-round red lights in addition to the lights required for a power-driven vessel of her class N d. the lights for a power-driven vessel which is not under command