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.
140: INLAND ONLY You are the stand-on vessel in a crossing situation. The other vessel is showing an alternating red and yellow light. Which action should you take?
Y a. Stand on. N b. Heave to. N c. Alter course to assist. N d. Yield the right-of-way. 237: INTERNATIONAL ONLY Vessel "A" is overtaking vessel "B" on open waters as shown and will pass without changing course. Vessel "A" should sound __________. (DIAGRAM 17 )
Y a. no whistle signal N b. two short blasts N c. two prolonged blasts followed by two short blasts N d. at least five short and rapid blasts 342: 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" N b. "I am operating astern propulsion port side" N c. "I am altering my course to starboard" Y d. None of the above 353: INTERNATIONAL ONLY Two power-driven vessels are crossing within one half mile of each other as shown. Vessel "A" sounds one short blast of the whistle. This signal means __________. (DIAGRAM 42 )
N a. "I intend to overtake you on your starboard side" N b. "I am operating astern propulsion" N c. "I intend to leave you on my port side" Y d. None of the above 4032: BOTH INTERNATIONAL & INLAND Which vessel may combine her sidelights and stern light in one lantern on the fore and aft centerline of the vessel?
Y a. A 16-meter sailing vessel N b. A 25-meter power-driven vessel N c. A 28-meter sailing vessel N d. Any non-self-propelled vessel 4034: BOTH INTERNATIONAL & INLAND A vessel "restricted in her ability to maneuver" is one which __________.
Y a. from the nature of her work is unable to maneuver as required by the rules N b. through some exceptional circumstance is unable to maneuver as required by the rules N c. due to adverse weather conditions is unable to maneuver as required by the rules N d. has lost steering and is unable to maneuver 4091: BOTH INTERNATIONAL & INLAND An authorized light to assist in the identification of submarines operating on the surface is a(n) __________.
N a. blue rotating light Y b. intermittent flashing amber/yellow light N c. flashing white light N d. flashing sidelight 4111: BOTH INTERNATIONAL & INLAND A 50-meter vessel is towing astern and the length of the tow is 100 meters. In addition to sidelights, which lights may she show to fully comply with the Rules?
N a. Two masthead lights forward, a stern light, and a towing light above the stern light Y b. A masthead light forward, two masthead lights aft, a stern light, and a towing light above the stern light N c. No masthead light forward, two masthead lights aft, a stern light, and a towing light above the stern light N d. Three masthead lights forward, one masthead light aft, and two towing lights in a vertical line at the stern 4111: BOTH INTERNATIONAL & INLAND A 50-meter vessel is towing astern and the length of the tow is 100 meters. In addition to sidelights, which lights may she show to fully comply with the Rules?
N a. Two masthead lights forward, a stern light, and a towing light above the stern light Y b. A masthead light forward, two masthead lights aft, a stern light, and a towing light above the stern light N c. No masthead light forward, two masthead lights aft, a stern light, and a towing light above the stern light N d. Three masthead lights forward, one masthead light aft, and two towing lights in a vertical line at the stern 4126: BOTH INTERNATIONAL & INLAND By day, when it is impracticable for a small vessel engaged in diving operations to display the shapes for a vessel engaged in underwater operations, she shall display __________.
N a. three black balls in a vertical line N b. two red balls in a vertical line N c. a black cylinder Y d. a rigid replica of the International Code flag "A" 4333: BOTH INTERNATIONAL & INLAND The arc of visibility for sidelights is from right ahead to __________.
Y a. 22.5° abaft the beam N b. abeam N c. 22.5° forward of the beam N d. 135° abaft the beam 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 4343: BOTH INTERNATIONAL & INLAND Risk of collision may exist __________.
N a. if the compass bearing of an approaching vessel does NOT appreciably change N b. even when an appreciable bearing change is evident, particularly when approaching a vessel at close range N c. if you observe both sidelights of a vessel ahead for an extended period of time Y d. All of the above 4356: BOTH INTERNATIONAL & INLAND A vessel engaged in fishing underway sounds the same fog signal as a __________.
N a. power-driven vessel stopped and making no way through the water N b. vessel being towed Y c. vessel restricted in her ability to maneuver at anchor N d. sailing vessel at anchor 4501: BOTH INTERNATIONAL & INLAND For identification purposes at night, U.S. Navy submarines on the surface may display an intermittent flashing light of which color?
Y a. Amber (yellow) N b. White N c. Blue N d. Red 4534: BOTH INTERNATIONAL & INLAND A vessel towing where the tow prevents her from changing course shall carry __________.
N a. only the lights for a vessel towing N b. only the lights for a vessel restricted in her ability to maneuver Y c. the lights for a towing vessel and the lights for a vessel restricted in her ability to maneuver N d. the lights for a towing vessel and the lights for a vessel not under command 4588: 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 Y c. sound only fog signals until the other vessel is sighted N d. not sound any whistle signals until the other vessel is sighted 4594: BOTH INTERNATIONAL & INLAND The Rules state that certain factors are to be taken into account when determining safe speed. Those factors include __________.
Y a. state of wind, sea, and current, and the proximity of navigational hazards N b. maximum attainable speed of your vessel N c. temperature N d. aids to navigation that are available 4614: BOTH INTERNATIONAL & INLAND Which vessel may show identifying lights when not actually engaged in her occupation?
N a. A fishing vessel N b. A pilot vessel N c. A mineclearance vessel Y d. None of the above 4621: BOTH INTERNATIONAL & INLAND The steering and sailing rules for vessels in restricted visibility apply to vessels __________.
N a. in sight of one another in fog Y b. navigating in or near an area of restricted visibility N c. only if they are showing special purpose lights N d. only if they have operational radar 4672: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning the danger signal?
N a. Only the stand-on vessel can sound the danger signal. N b. Radio transmissions may be used in place of the danger signal. Y c. A vessel in doubt as to the other vessel's intentions must sound the danger signal. N d. The danger signal consists of 5 or more prolonged blasts of the whistle. 4690: BOTH INTERNATIONAL & INLAND Which vessel would sound a fog signal consisting of the ringing of a bell for 5 seconds?
N a. A vessel engaged in fishing, at anchor N b. A vessel restricted in its ability to maneuver, at anchor Y c. A sailing vessel, at anchor N d. All of the above 4820: BOTH INTERNATIONAL & INLAND You are about to cross a narrow channel when you see an approaching vessel that can only be navigated safely within the channel. You should __________.
N a. cross the channel as you are the stand-on vessel N b. cross only if the vessel in the channel is approaching on your port side Y c. not cross the channel if you might impede the other vessel N d. sound the danger signal 4857: BOTH INTERNATIONAL & INLAND A vessel approaching a narrow channel shall __________.
Y a. avoid crossing the channel if it impedes another vessel navigating in the channel N b. not overtake any vessels within the channel N c. keep as close as possible to the edge of the channel on her port side N d. anchor only in the middle of the channel 8043: INTERNATIONAL ONLY Which vessel would NOT sound a fog signal of one prolonged and two short blasts?
N a. A vessel not under command N b. A vessel constrained by her draft Y c. A vessel being towed N d. A vessel sailing 8047: INTERNATIONAL ONLY A vessel sounds one short blast. This signal indicates the vessel __________.
N a. intends to alter course to starboard N b. intends to pass starboard to starboard Y c. is altering course to starboard N d. intends to pass port to port 8057: INTERNATIONAL ONLY Your vessel is backing out of a slip in a harbor and you can see that other vessels are approaching. You should sound __________.
Y a. three short blasts when leaving the slip N b. one prolonged blast followed by three short blasts when the last line is taken aboard N c. one prolonged blast only N d. the danger signal 8059: INTERNATIONAL ONLY You are in sight of a power-driven vessel that sounds two short blasts of the whistle. This signal means that the vessel __________.
Y a. is altering course to port N b. is altering course to starboard N c. intends to leave you on her port side N d. intends to leave you on her starboard side 8060: INTERNATIONAL ONLY You are operating a vessel in a narrow channel. Your vessel must stay within the channel to be navigated safely. Another vessel is crossing your course from starboard to port, and you are in doubt as to his intentions. According to Rule 9, you __________.
Y a. may sound the danger signal N b. must sound one prolonged and two short blasts N c. should sound one short blast to indicate that you are holding course and speed N d. are required to back down 8085: INTERNATIONAL ONLY At night, a power-driven vessel less than 7 meters in length, with a maximum speed which does not exceed 7 knots, MUST show when underway at least __________.
Y a. one white 360° light N b. a white light on the near approach of another vessel N c. sidelights and a stern light N d. the lights required of a vessel less than 12 meters in length