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.
5: INLAND ONLY You are overtaking a power-driven vessel in a narrow channel and wish to leave her on your starboard side. You may __________.
Y a. attempt to contact her on the radiotelephone to arrange for the passage N b. proceed to overtake her without sounding whistle signals N c. sound five short blasts N d. All of the above 75: INLAND ONLY You are on vessel "A", and vessel "B" desires to overtake you on your starboard side as shown. After the vessels have exchanged one blast signals, you should __________. (DIAGRAM 31 )
N a. alter course to the left N b. slow your vessel until vessel "B" has passed Y c. hold course and speed N d. alter course to the left to give vessel "B" more sea room 173: BOTH INTERNATIONAL & INLAND You are on watch and sight a vessel showing only these lights. They indicate a __________. (DIAGRAM 59 )
N a. submarine on the surface Y b. power-driven vessel N c. sailing vessel N d. vessel engaged in trawling 183: BOTH INTERNATIONAL & INLAND Which vessel must show an after masthead light, if over 50 meters in length?
N a. A vessel engaged in fishing N b. A vessel at anchor N c. A vessel not under command Y d. A vessel trawling 228: INLAND ONLY A vessel engaged in public safety activities may display an alternately flashing red and yellow light. This special light may be used by a vessel engaged in __________.
N a. law enforcement Y b. patrolling a regatta N c. hauling in pairs N d. river bank protection 260: INLAND ONLY A vessel engaged in public safety activities may display an alternately flashing red and yellow light. This special light may be used by a vessel engaged in __________.
Y a. search and rescue N b. restricted in ability to maneuver N c. not under command N d. river bank protection 363: BOTH INTERNATIONAL & INLAND Two power-driven vessels are crossing as shown. Vessel "A" sounds one short blast on the whistle. Vessel "B" is the __________. (DIAGRAM 42 )
N a. burdened vessel N b. give-way vessel N c. overtaking vessel Y d. None of the above 369: BOTH INTERNATIONAL & INLAND Two power-driven vessels are crossing as shown. Vessel "A" sounds one short blast on the whistle. Vessel "A" is the __________. (DIAGRAM 42 )
N a. stand-on vessel N b. overtaking vessel Y c. give-way vessel N d. None of the above 384: BOTH INTERNATIONAL & INLAND At night, you see the lights shown. This would indicate a __________. (DIAGRAM 78 )
N a. vessel restricted in her ability to maneuver N b. fishing vessel underway Y c. pilot vessel underway N d. vessel not under command 3683: BOTH INTERNATIONAL & INLAND The rules require that a stand-on vessel SHALL take action to avoid collision when she determines that __________.
N a. risk of collision exists N b. the other vessel will cross ahead of her N c. the other vessel is not taking appropriate action Y d. collision cannot be avoided by the give-way vessel's maneuver alone 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 4113: BOTH INTERNATIONAL & INLAND Which signal, other than a distress signal, can be used by a vessel to attract attention?
Y a. Searchlight beam N b. Continuous sounding of a fog signal apparatus N c. Burning barrel N d. Orange smoke signal 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 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 4133: BOTH INTERNATIONAL & INLAND Which statement is TRUE when you are towing more than one barge astern at night?
N a. Only the last barge in the tow must be lighted. N b. Only the first and last barges in the tow must be lighted. Y c. All barges in the tow must be lighted. N d. All barges, except unmanned barges, must be lighted. 4226: BOTH INTERNATIONAL & INLAND Which day-shape must be shown by a vessel 25 meters in length aground during daylight hours?
N a. One black ball N b. Two black balls Y c. Three black balls N d. Four black balls 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. 4392: BOTH INTERNATIONAL & INLAND Which vessel does NOT sound a fog signal of one prolonged followed by two short blasts?
N a. A vessel dredging Y b. A vessel being towed N c. A vessel engaged in fishing N d. A sailing vessel 4423: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning a "vessel engaged in fishing"?
Y a. The vessel may be using nets, lines, or trawls. N b. The vessel may be trolling. N c. The vessel shows 2 lights in a vertical line, white over red. N d. The vessel sounds the same fog signal as a vessel underway, making no way. 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. 4468: BOTH INTERNATIONAL & INLAND You see a vessel displaying three lights in a vertical line. The highest and lowest lights are red and the middle light is white. She is also showing a white light at the stern, which is lower than the forward light. It could be a __________.
Y a. survey vessel N b. vessel not under command N c. vessel aground N d. pilot vessel with port side to you 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 4528: 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 her ability to maneuver when carrying out her work at anchor 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 4659: BOTH INTERNATIONAL & INLAND A vessel servicing a pipeline during the day shall display __________.
Y a. three black shapes in a vertical line; the highest and lowest are balls, and the middle one is a diamond N b. three shapes in a vertical line; the highest and lowest are red balls, and the middle one is a white diamond N c. three black balls in a vertical line N d. two black balls in a vertical line 4660: BOTH INTERNATIONAL & INLAND In fog you observe your radar and determine that risk of collision exists with a vessel which is 2 miles off your port bow. You should __________.
N a. stop your engines N b. sound the danger signal at two-minute intervals N c. hold course and speed until the other vessel is sighted Y d. take avoiding action as soon as possible 4705: BOTH INTERNATIONAL & INLAND In complying with the Rules, of what must the mariner take due regard?
N a. Limited backing power of his vessel N b. Radar information about nearby vessels N c. The occupation of the other vessel, if known Y d. All of the above 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 8129: INTERNATIONAL ONLY Which statement is TRUE, according to the Rules?
N a. A vessel not under command shall keep out of the way of a vessel restricted in her ability to maneuver. N b. A vessel not under command shall avoid impeding the safe passage of a vessel constrained by her draft. N c. A vessel constrained by her draft shall keep out of the way of a vessel engaged in fishing. Y d. 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. 8129: INTERNATIONAL ONLY Which statement is TRUE, according to the Rules?
N a. A vessel not under command shall keep out of the way of a vessel restricted in her ability to maneuver. N b. A vessel not under command shall avoid impeding the safe passage of a vessel constrained by her draft. N c. A vessel constrained by her draft shall keep out of the way of a vessel engaged in fishing. Y d. 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.