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.
6: INLAND ONLY A vessel displaying a flashing blue light is __________.
N a. transferring dangerous cargo Y b. a law enforcement vessel N c. a work boat N d. engaged in a race 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 117: INLAND ONLY Which is a characteristic of a "special flashing light"?
N a. It is required for all vessels being pushed ahead as part of a composite unit. Y b. It must show through an arc of not less than 180° nor more than 225°. N c. It must be of the same character and construction as the masthead light. N 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 217: BOTH INTERNATIONAL & INLAND Vessel "A" is overtaking vessel "B" as shown. Vessel "A" is the __________. (DIAGRAM 17 )
Y a. give-way vessel N b. stand-on vessel N c. overtaken vessel N d. None of the above 337: 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 sound __________. (DIAGRAM 42 )
Y a. one short blast N b. two short blasts N c. two prolonged blasts followed by two short blasts N d. three short blasts 4000: BOTH INTERNATIONAL & INLAND Your vessel is 75 meters in length and restricted in her ability to maneuver. Visibility is restricted. What signal do you sound if you are carrying out your work at anchor?
N a. Five seconds ringing of a bell at intervals of not more than one minute Y b. One prolonged blast followed by two short blasts on the whistle at intervals of not more than two minutes N c. Five seconds ringing of a bell and five second sounding of a gong at intervals of not more than one minute N d. Four short blasts on the whistle at intervals of not more than two minutes 4028: 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 N b. The one with the wind closest astern N c. The one to leeward Y d. The one to windward 4059: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning seaplanes on the water?
N a. A seaplane must show appropriate lights but need not exhibit shapes. N b. A seaplane should exhibit the lights for a vessel constrained by her draft. N c. In situations where a risk of collision exists, a seaplane should always give way. Y d. A seaplane on the water shall, in general, keep well clear of all vessels. 4151: BOTH INTERNATIONAL & INLAND While underway in fog you hear a vessel sound one prolonged blast followed by two short blasts. What does this signal indicate?
Y a. A vessel towing N b. A vessel being towed N c. A pilot vessel engaged on pilotage duty N d. A vessel aground 4166: BOTH INTERNATIONAL & INLAND A power-driven vessel towing another vessel astern (tow less than 200 meters) shall show __________.
N a. three masthead lights in a vertical line instead of either the forward or after masthead light Y b. two masthead lights in a vertical line instead of either the forward or after masthead lights N c. two towing lights in a vertical line at the stern N d. a small white light aft of the funnel 4171: BOTH INTERNATIONAL & INLAND A vessel engaged in fishing, and at anchor, shall show __________.
N a. an anchor light N b. sidelights and a stern light N c. three lights in a vertical line, the highest and lowest being red, and the middle being white Y d. None of the above 4293: BOTH INTERNATIONAL & INLAND Which vessel is to sound a fog signal of one prolonged followed by two short blasts?
N a. A vessel not under command N b. A sailing vessel underway N c. A vessel restricted in its ability to maneuver, at anchor Y d. All of the above 4398: BOTH INTERNATIONAL & INLAND A tugboat displaying the day-shape shown __________. (DIAGRAM 10 )
N a. is at anchor N b. is not under command Y c. has a tow that exceeds 200 meters in length N d. has a tow that is carrying dangerous cargo 4413: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning a 75-meter power-driven vessel underway at night?
N a. She must exhibit an all-round white light at the stern. Y b. She must exhibit forward and after masthead lights. N c. She must exhibit only a forward masthead light. N d. She may exhibit a red light over a green light forward. 4436: BOTH INTERNATIONAL & INLAND A white masthead light shows through an arc of how many degrees?
N a. 90° N b. 112.5° Y c. 225° N d. 360° 4456: BOTH INTERNATIONAL & INLAND What is the required fog signal for a manned vessel being towed at night?
N a. One prolonged followed by one short blast Y b. One prolonged followed by three short blasts N c. One prolonged followed by two short blasts N d. Two prolonged blasts 4467: BOTH INTERNATIONAL & INLAND Under the Rules, the term "vessel" includes __________.
N a. non-self-propelled raft N b. seaplanes N c. hovercrafts Y d. All of the above 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 4559: BOTH INTERNATIONAL & INLAND A vessel aground at night is required to show two red lights in a vertical line as well as __________.
N a. not under command lights N b. restricted in her ability to maneuver lights Y c. anchor lights N d. sidelights and a stern light 4598: BOTH INTERNATIONAL & INLAND A vessel engaged in fishing while at anchor shall sound a fog signal of __________.
Y a. one prolonged and two short blasts at two-minute intervals N b. one prolonged and three short blasts at two-minute intervals N c. a rapid ringing of the bell for five seconds at one-minute intervals N d. a sounding of the bell and gong at one-minute intervals 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 4646: BOTH INTERNATIONAL & INLAND By night, you sight the lights of a vessel engaged in underwater operations. If an obstruction exists on the port side of the vessel, it will be marked by __________.
N a. a floodlight Y b. two red lights in a vertical line N c. a single red light N d. any visible lights 4703: BOTH INTERNATIONAL & INLAND A towing light is a yellow light having the same characteristics as a(n) __________.
N a. special flashing light N b. anchor light Y c. stern light N d. masthead light 4714: BOTH INTERNATIONAL & INLAND Which vessel would exhibit sidelights when underway and not making way?
N a. A vessel not under command Y b. A vessel pushing ahead N c. A vessel engaged in dredging N d. A vessel trawling 4839: BOTH INTERNATIONAL & INLAND A vessel is considered to be "restricted in her ability to maneuver" under the Rules if she is __________.
N a. at anchor Y b. mineclearing N c. engaged in fishing N d. engaged in towing 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 8025: INTERNATIONAL ONLY The light which may be used with a vessel's whistle is to be __________.
N a. used when the whistle is broken N b. used prior to sounding the whistle N c. used only at night Y d. a white light 8061: INTERNATIONAL ONLY Vessel "A" is overtaking vessel "B" on open waters as shown and will pass without changing course. Vessel "A" __________. (DIAGRAM 17 )
N a. should sound two short blasts N b. should sound the danger signal N c. should sound one long blast Y d. need not sound any whistle signals 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