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.
30: INLAND ONLY Which signal must a power-driven vessel give, in addition to one prolonged blast, when backing out of a berth with another vessel in sight?
N a. 2 short blasts N b. 1 blast Y c. 3 short blasts N d. 4 blasts 42: INLAND ONLY You are underway in a narrow channel, and are being overtaken by another power-driven vessel. The overtaking vessel sounds the signal indicating his intention to pass you on your starboard side. You signal your agreement by sounding __________.
Y a. one short blast N b. two prolonged blasts N c. two prolonged followed by two short blasts N d. one prolonged, one short, one prolonged, and one short blast in that order 61: INLAND ONLY Your power-driven vessel is overtaking another power-driven vessel in a narrow channel. You wish to overtake her on her starboard side. You should sound a whistle signal of __________.
Y a. one short blast N b. two prolonged blasts followed by one short blast N c. one prolonged and one short blast N d. at least five short blasts 85: INLAND ONLY A power-driven vessel crossing a river on the Great Lakes or Western Rivers, must keep out of the way of a power-driven vessel __________.
N a. descending the river with a tow N b. ascending the river with a tow N c. ascending the river without a tow Y d. All of the above 157: BOTH INTERNATIONAL & INLAND The lights shown are exhibited by a vessel __________. (DIAGRAM 49 )
N a. restricted in her ability to maneuver N b. engaged in fishing Y c. not under command N d. on pilotage duty 162: BOTH INTERNATIONAL & INLAND You are on a vessel heading due south and see the lights shown one point on the port bow. This vessel could be heading ___________ . (DIAGRAM 51 )
N a. SSW Y b. NW N c. NE N d. SE 236: 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 )
N a. one short blast N b. two short blasts N c. one prolonged blast Y d. no whistle signal 239: 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. Both vessels should continue on course and pass without sounding any whistle signals. N b. The vessels must exchange two blast whistle signals and pass port to port. N c. The vessels must exchange one blast whistle signals and pass starboard to starboard Y d. The vessels may reach agreement by radiotelephone and sound no whistle signal. 249: INLAND ONLY You are on a power-driven vessel "I" as shown. Vessel "II" is a power-driven vessel engaged in fishing that will pass within 1/2 a mile of your vessel. Which action should you take? (DIAGRAM 36 )
N a. Hold course and speed without giving a signal. N b. Sound the danger signal and reduce speed. N c. Sound one short blast, reduce speed and turn to starboard. Y d. Sound one short blast and await response from the fishing vessel. 253: INLAND ONLY Vessels "A" and "B" are meeting on a river as shown and will pass 1/4 mile apart. Which light(s) on the tug & barge will you see, if you are on vessel "A"? (DIAGRAM 41 )
N a. a special flashing light N b. two white masthead lights in a vertical line N c. green sidelights Y d. All of the above 328: BOTH INTERNATIONAL & INLAND Diagram "D" shows the arc of visibility of a __________. (DIAGRAM 23 )
N a. white masthead light N b. green sidelight N c. stern light Y d. None of the above 371: INTERNATIONAL ONLY If a towing vessel and her tow are severely restricted in their ability to deviate from their course, the towing vessel shall show lights in addition to her towing identification lights. These additional lights shall be shown if the tow is __________.
N a. pushed ahead N b. towed alongside Y c. towed astern N d. All of the above 391: BOTH INTERNATIONAL & INLAND You see ONLY the light shown. This could be a vessel __________. (DIAGRAM 80 )
Y a. under oars N b. on pilotage duty N c. engaged in fishing N d. towing 4081: BOTH INTERNATIONAL & INLAND You are aboard vessel "A" , a power-driven vessel, on open waters and vessel "B", a sailing vessel, is sighted off your port bow as shown. Which vessel is the stand-on vessel? (DIAGRAM 27 )
N a. Vessel "A" because it is towing N b. Vessel "A" because it is to starboard of vessel "B" Y c. Vessel "B" because it is sailing N d. Vessel "B" because it is to port of vessel "A" 4084: BOTH INTERNATIONAL & INLAND If you are approaching a bend, and hear a whistle signal of one prolonged blast from around the bend, you should answer with a signal of __________.
N a. a short blast Y b. a prolonged blast N c. one short, one prolonged, and one short blast N d. a long blast 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 4118: BOTH INTERNATIONAL & INLAND When should the fog signal of a manned vessel under tow be sounded?
Y a. After the towing vessel's fog signal N b. Before the towing vessel's fog signal N c. Approximately one minute after the towing vessel's fog signal N d. If the towing vessel is sounding a fog signal, the manned vessel being towed is not required to sound any fog signal. 4130: BOTH INTERNATIONAL & INLAND The duration of each blast of the whistle signals used in meeting and crossing situations is __________.
Y a. about 1 second N b. 2 or 4 seconds N c. 4 to 6 seconds N d. 8 to 10 seconds 4212: BOTH INTERNATIONAL & INLAND While underway your vessel approaches a bend in a river where, due to the bank, you cannot see around the bend. You should __________.
N a. keep to the starboard side of the channel and sound one short blast N b. sound the danger signal Y c. sound one prolonged blast N d. slow your vessel to bare steerageway 4234: BOTH INTERNATIONAL & INLAND What lights, if any, would you exhibit at night if your vessel were broken down and being towed by another vessel?
N a. None N b. Same lights as for a power-driven vessel underway N c. A white light forward and a white light aft Y d. The colored sidelights and a white stern light 4310: BOTH INTERNATIONAL & INLAND Which vessel is to be regarded as a vessel "restricted in her ability to maneuver"?
N a. A vessel fishing with trawls N b. A vessel which has lost the use of her steering gear N c. A vessel with a draft of such depth that she cannot change her course Y d. A vessel engaged in mineclearing 4315: INTERNATIONAL ONLY While underway and in sight of another vessel you put your engines on astern propulsion. Which statement concerning whistle signals is TRUE?
Y a. You must sound three short blasts on the whistle. N b. You must sound one blast if backing to starboard. N c. You must sound whistle signals only if the vessels are meeting. N d. You need not sound any whistle signals. 4387: BOTH INTERNATIONAL & INLAND An overtaking situation would be one in which one vessel is approaching another from more than how many degrees abaft the beam?
N a. 0° N b. 10° Y c. 22.5° N d. None of the above 4457: BOTH INTERNATIONAL & INLAND If you anchor your 25-meter vessel in a harbor, what light(s) must you show?
Y a. One all-round white light N b. Two all-round white lights N c. One all-round red light N d. All the deck house lights 4599: BOTH INTERNATIONAL & INLAND Underway at night you see the red sidelight of a vessel well off your port bow. Which statement is TRUE?
N a. You are required to alter course to the right. N b. You must stop engines. N c. You are on a collision course with the other vessel. Y d. You may maintain course and speed. 4647: BOTH INTERNATIONAL & INLAND At night a vessel displaying the lights shown is __________. (DIAGRAM 65 )
N a. fishing Y b. anchored N c. being towed N d. drifting 4647: BOTH INTERNATIONAL & INLAND At night a vessel displaying the lights shown is __________. (DIAGRAM 65 )
N a. fishing Y b. anchored N c. being towed N d. drifting 4728: BOTH INTERNATIONAL & INLAND Which statement is TRUE, according to the Rules?
N a. A vessel engaged in fishing shall keep out of the way of a sailing vessel. N b. A vessel not under command shall keep out of the way of a vessel engaged in fishing. Y c. A vessel engaged in fishing while underway shall, so far as possible, keep out of the way of a vessel restricted in her ability to maneuver. N d. A vessel not under command shall keep out of the way of a vessel restricted in her ability to maneuver. 5200: BOTH INTERNATIONAL & INLAND In a traffic separation scheme, when joining a traffic lane from the side, a vessel shall do so __________.
N a. only in case of an emergency or to engage in fishing within the zone N b. as nearly as practical at right angles to the general direction of traffic flow Y c. at as small an angle as possible N d. only to anchor within the zone 8098: INTERNATIONAL ONLY If at night a vessel displays three all-round red lights in a vertical line, during the day she may show __________.
N a. two cones, base to base N b. three black balls in a vertical line Y c. a cylinder N d. a cone, apex downward