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.
90: INLAND ONLY Two vessels are in a starboard to starboard meeting situation and will pass well clear approximately 1/4 mile apart. Which action should each vessel take?
N a. Sound a one blast whistle signal and turn to starboard. N b. Maintain course and sound no signal. Y c. Sound a two blast whistle signal and maintain course. N d. Sound a three blast whistle signal and turn to port. 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 127: INLAND ONLY You are on board the stand-on vessel in a crossing situation. You sound a one blast whistle signal, and the give-way vessel answers with a two-blast signal. You should then sound the danger signal and __________.
N a. maintain course and speed N b. come around sharply to port N c. maneuver around the stern of the other vessel Y d. stop and back your vessel if necessary until signals are agreed upon 295: BOTH INTERNATIONAL & INLAND The display of lights shown could represent a __________. (DIAGRAM 48 )
N a. submarine on the surface Y b. tug and a barge being towed astern N c. vessel restricted in her ability to maneuver N d. vessel not under command 390: BOTH INTERNATIONAL & INLAND You see ONLY the light shown. This could be a vessel __________. (DIAGRAM 80 )
N a. not under command Y b. under oars N c. engaged in fishing N d. towing 4022: BOTH INTERNATIONAL & INLAND A sailing vessel underway may exhibit __________.
Y a. a red light over a green light at the masthead N b. a green light over a red light at the masthead N c. two white lights in a vertical line at the stern N d. an all-round white light at the bow 4033: BOTH INTERNATIONAL & INLAND The duration of a prolonged blast of the whistle is __________.
N a. 2 to 4 seconds Y b. 4 to 6 seconds N c. 6 to 8 seconds N d. 8 to 10 seconds 4040: BOTH INTERNATIONAL & INLAND Which of the day-shapes shown indicates a vessel with a tow exceeding 200 meters in length? (DIAGRAM 16 )
N a. A Y b. B N c. C N d. D 4054: BOTH INTERNATIONAL & INLAND A vessel is "engaged in fishing" when __________.
N a. her gear extends more than 100 meters from the vessel N b. she is using any type of gear, other than lines Y c. she is using fishing apparatus which restricts her maneuverability N d. she has any fishing gear on board 4058: BOTH INTERNATIONAL & INLAND Which factor is listed in the Rules as one which must be taken into account when determining safe speed?
N a. The construction of the vessel Y b. The maneuverability of the vessel N c. The experience of vessel personnel N d. All of the above must be taken into account. 4061: BOTH INTERNATIONAL & INLAND Vessels "A" and "B" are crossing as shown. Which statement is TRUE? (DIAGRAM 26 )
N a. The vessels should pass starboard to starboard. N b. Vessel "B" should pass under the stern of vessel "A". N c. Vessel "B" should alter course to the right. Y d. Vessel "A" must keep clear of vessel "B". 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 4109: BOTH INTERNATIONAL & INLAND A vessel towing in fog shall sound a fog signal of __________.
N a. one prolonged blast every one minute N b. two prolonged blasts every two minutes Y c. one prolonged and two short blasts every two minutes N d. one prolonged blast every two minutes 4109: BOTH INTERNATIONAL & INLAND A vessel towing in fog shall sound a fog signal of __________.
N a. one prolonged blast every one minute N b. two prolonged blasts every two minutes Y c. one prolonged and two short blasts every two minutes N d. one prolonged blast every two minutes 4135: BOTH INTERNATIONAL & INLAND A vessel is being propelled both by sail and by engines. Under the Rules, the vessel is __________.
N a. a "special circumstance" vessel N b. not covered under any category N c. a sail vessel Y d. a power-driven vessel 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 4257: BOTH INTERNATIONAL & INLAND Which vessel is required 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 4296: BOTH INTERNATIONAL & INLAND Which power-driven vessel is NOT required to carry a light in the position of the after masthead light?
N a. A pushing vessel and a vessel being pushed, in a composite unit and 100 meters in length N b. A vessel of 60 meters in length towing astern Y c. A vessel of 45 meters in length trolling N d. Any vessel constrained by her draft 4322: BOTH INTERNATIONAL & INLAND In which situation do you think a risk of collision exists?
N a. A vessel is 22° on your port bow, range increasing, bearing changing slightly to the right. N b. A vessel is broad on your starboard beam, range decreasing, bearing changing rapidly to the right. N c. A vessel is 22° abaft your port beam, range increasing, bearing is constant. Y d. A vessel is on your starboard quarter, range decreasing, bearing is constant. 4422: BOTH INTERNATIONAL & INLAND Each prolonged blast on whistle signals used by a power-driven vessel in fog, whether making way or underway but not making way, is __________.
N a. about one second N b. two to four seconds Y c. four to six seconds N d. eight to ten seconds 4443: BOTH INTERNATIONAL & INLAND Which statement is TRUE in an overtaking situation?
N a. An overtaking situation exists when one vessel is approaching another vessel from anywhere abaft the beam. N b. It is the duty of the vessel being overtaken to get out of the way. Y c. Any later change of bearing between the two vessels shall not make the overtaking vessel a crossing vessel. N d. All of the above 4458: BOTH INTERNATIONAL & INLAND You see the lights shown as illustrated on your port bow. You should __________. (DIAGRAM 50 )
Y a. hold course and speed N b. alter course to port N c. stop engines N d. sound the danger signal 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 4529: BOTH INTERNATIONAL & INLAND A vessel may exhibit lights other than those prescribed by the Rules as long as the additional lights __________.
Y a. do not interfere with the keeping of a proper look-out N b. are not the color of either sidelight N c. have a lesser range than the prescribed lights N d. All of the above 4538: BOTH INTERNATIONAL & INLAND What is a vessel "restricted in her ability to maneuver"?
N a. A vessel not under command N b. A vessel constrained by her draft N c. A vessel underway in fog Y d. A vessel towing unable to deviate from her course 4557: BOTH INTERNATIONAL & INLAND Rule 14 describes the action to be taken by vessels meeting head-on. Which of the following conditions must exist in order for this rule to apply?
N a. Both vessels must be power-driven. N b. They must be meeting on reciprocal or nearly reciprocal courses. N c. The situation must involve risk of collision. Y d. All of the above 4649: BOTH INTERNATIONAL & INLAND Which vessel may carry her sidelights and stern light in one combined lantern?
N a. A 10-meter power-driven vessel N b. A 15-meter vessel propelled by sail and machinery Y c. A 10-meter sailing vessel N d. All of the above 4666: BOTH INTERNATIONAL & INLAND Which vessel must have a gong, or other equipment which will make the sound of a gong?
N a. A sailing vessel N b. Any vessel over 50 meters N c. A power driven vessel over 75 meters Y d. Any vessel over 100 meters 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 8101: INTERNATIONAL ONLY Which statement applies to a vessel "constrained by her draft"?
N a. The term only applies to vessels in narrow channels. Y b. She is severely restricted in her ability to change her course because of her draft in relation to the available depth and width of navigable water. N c. She is designated as a "vessel restricted in her ability to maneuver". N d. The vessel must be over 100 meters in length.