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.
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 55: INLAND ONLY The lights shown are those of a __________. (DIAGRAM 75 )
N a. pipeline Y b. vessel pushing ahead N c. vessel being towed astern N d. vessel underway and dredging 86: INLAND ONLY What is the whistle signal used to indicate a power-driven vessel leaving a dock?
N a. One short blast N b. Three short blasts Y c. One prolonged blast N d. Three prolonged blasts 155: BOTH INTERNATIONAL & INLAND You are underway at night and you sight the lights shown. You know these lights indicate a(n) __________. (DIAGRAM 47 )
Y a. sailing vessel N b. air cushion vessel operating in the non-displacement mode N c. submarine operating on the surface N d. vessel pushing a barge ahead 198: INTERNATIONAL ONLY You are on a vessel that cannot comply with the spacing requirement for masthead lights. What is required in this situation?
N a. The vessel must carry only the lights that comply with the rules; the others may be omitted. Y b. The vessel's lights must comply as closely as possible, as determined by her government. N c. The vessel must be altered to permit full compliance with the rules. N d. An all-round light should be substituted for the after masthead light and the stern light. 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 238: BOTH INTERNATIONAL & INLAND Vessels "A" and "B" are meeting in a narrow channel as shown but are not in sight of one another due to restricted visibility. Which statement is TRUE concerning whistle signals between the vessels? (DIAGRAM 29 )
N a. Both vessels should sound two short blasts. N b. Both vessels should sound one short blast. N c. Vessel "A" should sound one short blast and vessel "B" should sound two short blasts. Y d. None of the above statements is TRUE. 241: INLAND ONLY Vessels "A" and "B" are meeting on a river as shown and will pass 1/4 mile apart. Which statement is TRUE? (DIAGRAM 29 )
N a. Whistle signals must be exchanged in all cases when passing within one half mile of each other. N b. The vessels should exchange two blast signals and pass port to port. Y c. If a passing agreement is reached by radiotelephone, whistle signals are optional, and the vessels should pass starboard to starboard as agreed. N d. The vessels should pass port to port and must sound whistle signals only if either vessel changes course. 299: BOTH INTERNATIONAL & INLAND A vessel displaying the lights shown is a(n) __________. (DIAGRAM 79 )
Y a. vessel towing astern N b. vessel restricted in her ability to maneuver N c. vessel not under command N d. vessel aground 401: INLAND ONLY Two power-driven vessels are meeting in the situation as shown in a narrow channel on the Great Lakes. Vessel "A" is downbound with a following current. Vessel "B" should __________. (DIAGRAM 37 )
Y a. take action to permit safe passage N b. have the right of way N c. initiate the maneuvering signals N d. None of the above 4016: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning a vessel equipped with operational radar?
Y a. She must use this equipment to obtain early warning of risk of collision. N b. The radar equipment is only required to be used in restricted visibility. N c. The use of a radar excuses a vessel from the need of a look-out. N d. The safe speed of such a vessel will likely be greater than that of vessels without radar. 4017: BOTH INTERNATIONAL & INLAND A 200-meter vessel is aground in fog. Which signal is optional?
N a. A bell signal N b. A gong signal Y c. A whistle signal N d. All of the above 4082: BOTH INTERNATIONAL & INLAND Which vessel must exhibit three white masthead lights in a vertical line?
N a. Any vessel towing astern Y b. A vessel whose tow exceeds 200 meters astern N c. A vessel not under command, at anchor N d. A vessel being towed 4100: BOTH INTERNATIONAL & INLAND A 45-meter vessel is pulling a 210-meter tow. She may exhibit __________.
N a. a masthead light forward, and two masthead lights in a vertical line aft Y b. three masthead lights forward and one aft N c. two masthead lights forward and no after masthead light N d. three masthead lights aft and none forward 4112: BOTH INTERNATIONAL & INLAND A vessel, which is unable to maneuver due to some exceptional circumstance, shall exhibit __________.
N a. during the day, three balls in a vertical line N b. during the day, three shapes, the highest and lowest being balls and the middle being a diamond Y c. when making way at night, two all-round red lights, sidelights, and a stern light N d. when making way at night, masthead lights, sidelights, and a stern light 4123: BOTH INTERNATIONAL & INLAND While underway in fog, you hear a vessel sound one prolonged blast followed by two short blasts on the whistle. What does this signal indicate?
Y a. A vessel towing N b. A vessel engaged in pilotage duty N c. A vessel being towed N d. A vessel aground 4124: BOTH INTERNATIONAL & INLAND Vessel "A" is underway and pushing ahead when vessel "B" is sighted off the starboard bow as shown. Which vessel is the stand-on vessel? (DIAGRAM 28 )
N a. Vessel "A" is the stand-on vessel because it is to port. N b. Vessel "A" is the stand-on vessel because it is pushing ahead. Y c. Vessel "B" is the stand-on vessel because it is to starboard of vessel "A". N d. Neither vessel is the stand-on vessel. 4170: BOTH INTERNATIONAL & INLAND A 20-meter vessel is towing another vessel astern. The length of the tow from the stern of the towing vessel to the stern of the tow is 75 meters. How many white towing masthead lights shall the towing vessel show at night?
N a. 1 Y b. 2 N c. 3 N d. 4 4210: BOTH INTERNATIONAL & INLAND A vessel being towed astern shall show at night __________.
N a. the lights required for a power-driven vessel underway N b. only the required masthead lights N c. a stern light only Y d. sidelights and a stern light 4227: BOTH INTERNATIONAL & INLAND An orange flag showing a black circle and square is a __________.
N a. signal indicating a course change Y b. distress signal N c. signal of asking to communicate with another vessel N d. signal indicating danger 4274: BOTH INTERNATIONAL & INLAND During the day, a vessel picking up a submarine cable shall carry __________.
N a. three shapes, the highest and lowest shall be red balls, and the middle shall be a white diamond N b. two black balls N c. three shapes; the highest and lowest shall be black balls, and the middle shall be a red diamond Y d. three shapes; the highest and lowest shall be black balls and the middle shall be a black diamond 4305: BOTH INTERNATIONAL & INLAND In fog, a vessel being towed, if manned, shall sound a fog signal of __________.
N a. two short blasts N b. three short blasts N c. one prolonged and two short blasts Y d. one prolonged and three short blasts 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 4367: BOTH INTERNATIONAL & INLAND What would NOT be a distress signal?
N a. "MAYDAY" sent by radiotelephone N b. Continuous sounding of fog horn Y c. Green star shells fired from a launcher N d. Square flag and ball in a vertical line 4412: BOTH INTERNATIONAL & INLAND A vessel displaying the lights shown is __________. (DIAGRAM 44 )
N a. towing N b. conducting underwater survey operations N c. drifting Y d. aground 4438: BOTH INTERNATIONAL & INLAND You are at anchor in fog. The fog signal of a vessel underway has been steadily growing louder and the danger of collision appears to exist. In addition to your fog signal, what signal may be used to indicate the presence of your vessel?
N a. Three blasts on the whistle; one prolonged, one short, and one prolonged. Y b. Three blasts on the whistle; one short, one prolonged, and one short. N c. Three blasts on the whistle; one prolonged followed by two short. N d. No signal other than your fog signal may be used. 4590: BOTH INTERNATIONAL & INLAND A vessel being towed, if manned, shall sound a fog signal of __________.
N a. two short blasts N b. three short blasts N c. one prolonged and two short blasts Y d. one prolonged and three short blasts 4602: BOTH INTERNATIONAL & INLAND A fog signal consisting of one prolonged blast followed by four short blasts would indicate the presence of a __________.
N a. vessel being towed N b. fishing vessel engaged in trawling N c. vessel at anchor warning of her location Y d. power-driven pilot vessel on station underway 4737: BOTH INTERNATIONAL & INLAND You are approaching a narrow channel. Another vessel in the channel can only be navigated safely in that channel. You should __________.
Y a. not cross the channel if you might impede the other vessel N b. hold your course and speed if she is on your port bow N c. sound three short blasts, and take all way off your vessel N d. sound two prolonged blasts followed by one short blast 8050: INTERNATIONAL ONLY A sailing vessel is overtaking a power-driven vessel in a narrow channel, so as to pass on the power-driven vessel's port side. The overtaken vessel will have to move to facilitate passage. The sailing vessel is the __________.
N a. stand-on vessel and would sound two short blasts N b. give-way vessel and would sound no whistle signal N c. stand-on vessel and would sound no whistle signal Y d. give-way vessel and would sound two prolonged blasts followed by two short blasts