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.
15: INLAND ONLY Under the Inland Navigation Rules, what is the meaning of the two short blasts signal used when meeting another vessel?
N a. "I am turning to starboard." N b. "I am turning to port." Y c. "I intend to leave you on my starboard side." N d. "I intend to leave you on my port side." 16: INLAND ONLY For the purpose of the Inland Navigation Rules, the term "Inland Waters" includes __________.
N a. the Western Rivers N b. the Great Lakes on the United States side of the International Boundary N c. harbors and rivers shoreward of the COLREGS demarcation lines Y d. All of the above 130: INLAND ONLY Your vessel must stay within a narrow channel to be navigated safely. Another vessel is crossing your course from starboard to port. You do NOT think she will pass safely. You are required to __________.
N a. slow to bare steerageway N b. back down N c. sound one short blast to indicate that you are holding course and speed Y d. sound the danger signal 163: INLAND ONLY A commercial vessel engaged in public safety activities may display a(n) __________.
N a. flashing yellow light N b. flashing blue light N c. alternately flashing blue and red light Y d. alternately flashing red and yellow light 170: BOTH INTERNATIONAL & INLAND You are on a vessel and see ahead the lights shown. They indicate a __________. (DIAGRAM 59 )
N a. vessel crossing from your starboard Y b. vessel crossing from your port N c. vessel being overtaken N d. vessel meeting head-on 210: INLAND ONLY A single vessel being towed alongside shall exhibit __________.
N a. one all-round white light Y b. sidelights, stern light and a special flashing light N c. only the outboard sidelight and a stern light N d. a masthead light, sidelights, and a stern light 282: INLAND ONLY While underway you sight the lights shown with the yellow lights flashing. The lights displayed are from a __________. (DIAGRAM 81 )
N a. vessel not under command Y b. dredge pipeline N c. vessel aground N d. vessel engaged in fishing 4103: BOTH INTERNATIONAL & INLAND Which is the danger signal?
N a. A continuous sounding of the fog signal N b. Firing a gun every minute Y c. Five or more short rapid blasts on the whistle N d. One prolonged blast on the whistle 4154: BOTH INTERNATIONAL & INLAND Which vessel, when anchored at night, is NOT required to show anchor lights?
N a. A power-driven vessel N b. A vessel engaged on pilotage duty Y c. A vessel dredging N d. A vessel restricted in her ability to maneuver 4167: BOTH INTERNATIONAL & INLAND A vessel which is "restricted in her ability to maneuver" under the Rules, is a vessel which is __________.
Y a. mineclearing N b. engaged in fishing N c. at anchor N d. not under command 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 4259: BOTH INTERNATIONAL & INLAND What is the optional whistle signal which may be sounded by a vessel at anchor?
N a. Two prolonged followed by one short blast N b. One short followed by two prolonged blasts Y c. One short, one prolonged, followed by one short blast N d. Four short blasts 4260: BOTH INTERNATIONAL & INLAND The minimum length of a power-driven vessel that must show forward and after masthead lights is __________.
N a. 30 meters Y b. 50 meters N c. 75 meters N d. 100 meters 4312: BOTH INTERNATIONAL & INLAND A power-driven vessel "not under command" at night must show which lights in a vertical line?
N a. Three red Y b. Two red N c. Two white N d. Three white 4332: BOTH INTERNATIONAL & INLAND You are the stand-on vessel in a crossing situation. You may hold your course and speed until __________.
N a. the other vessel takes necessary action N b. the other vessel gets to within half a mile of your vessel Y c. action by the give-way vessel alone will not prevent collision N d. the other vessel gets to within a quarter mile of your vessel 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 4349: BOTH INTERNATIONAL & INLAND If a vessel is engaged in fishing according to the definitions in the Rules, it will have __________.
N a. gear extending from the side or stern Y b. gear that restricts maneuverability N c. less than 50 percent trolling lines N d. None of the above 4357: BOTH INTERNATIONAL & INLAND A vessel 15 meters in length which is proceeding under sail as well as being propelled by machinery shall exhibit during the daytime __________.
N a. one black ball N b. a basket Y c. a cone with its apex downward N d. two cones with their apexes together 4379: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning risk of collision?
N a. The stand-on vessel must keep out of the way of the other vessel when risk of collision exists. N b. Risk of collision always exists when two vessels pass within one mile of each other. N c. Risk of collision always exists when the compass bearing of an approaching vessel changes appreciably. Y d. Risk of collision may exist when the compass bearing of an approaching vessel is changing appreciably. 4404: BOTH INTERNATIONAL & INLAND A vessel towing astern in an operation which severely restricts the towing vessel and her tow in their ability to change course shall, when making way, exhibit __________.
N a. the masthead lights for a towing vessel N b. the lights for a vessel restricted in its ability to maneuver N c. sidelights, stern light and towing light Y d. All of the above 4451: BOTH INTERNATIONAL & INLAND Every vessel should at all times proceed at a "safe speed". "Safe speed" is defined as that speed where __________.
N a. you can stop within your visibility range Y b. you can take proper and effective action to avoid collision N c. you are traveling slower than surrounding vessels N d. no wake comes from your vessel 4479: BOTH INTERNATIONAL & INLAND What signal indicates doubt that sufficient action is being taken by another vessel to avoid collision?
Y a. Five short and rapid blasts of the whistle N b. Three long blasts of the whistle N c. Three short and rapid blasts of the whistle N d. One prolonged blast followed by three short blasts of the whistle 4491: BOTH INTERNATIONAL & INLAND Barges being towed at night __________.
Y a. must be lighted at all times N b. must be lighted only if manned N c. must be lighted only if towed astern N d. need not be lighted 4504: BOTH INTERNATIONAL & INLAND While underway in a narrow channel, a vessel should stay __________.
N a. in the middle of the channel Y b. to the starboard side of the channel N c. to the port side of the channel N d. to the side of the channel that has the widest bends 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 4562: BOTH INTERNATIONAL & INLAND In a crossing situation, the vessel which has the other on her own starboard side shall __________.
Y a. if the circumstances of the case admit, avoid crossing ahead of the other N b. change course to port to keep out of the way N c. reduce her speed N d. All of the above 4652: BOTH INTERNATIONAL & INLAND A vessel displaying the day-shapes shown is __________. (DIAGRAM 18 )
N a. towing astern with a tow greater than 200 meters in length N b. not under command Y c. dredging N d. carrying dangerous cargo 4780: BOTH INTERNATIONAL & INLAND You are the stand-on vessel in a crossing situation. If you think the give-way vessel is NOT taking sufficient action to avoid collision, you should sound __________.
Y a. the danger signal N b. two short blasts, alter to port, and pass astern N c. no signal and maneuver at will N d. one short blast and maintain course 4835: BOTH INTERNATIONAL & INLAND The word "vessel", in the Rules, includes __________.
N a. a barge permanently affixed to the shore Y b. nondisplacement craft N c. a drilling unit attached to the Outer Continental Shelf N d. All of the above 8021: INTERNATIONAL ONLY Your vessel is crossing a narrow channel. A vessel to port is within the channel and crossing your course. She is showing a black cylinder. What is your responsibility?
N a. Hold your course and speed. N b. Sound the danger signal. N c. Begin an exchange of passing signals. Y d. Do not cross the channel if you might impede the other vessel.