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.
47: INLAND ONLY A flashing blue light is used to identify __________.
Y a. law enforcement vessels N b. U.S. submarines N c. air-cushion vessels in the nondisplacement mode N d. dredge pipelines on trestles 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 103: INLAND ONLY Which light display would mark the opening in a pipeline where vessels could pass through?
N a. Three red lights in a vertical line on each side of the opening Y b. Two red lights in a vertical line on each side of the opening N c. Three white lights in a vertical line on each side of the opening N d. Two white lights in a vertical line on each side of the opening 109: BOTH INTERNATIONAL & INLAND Vessel "A" is overtaking vessel "B" as shown. Vessel "B" is an air-cushion vessel operating in the nondisplacement mode. In addition to a steady white light which other light will vessel "A" observe on vessel "B"? (DIAGRAM 17 )
N a. Steady green light N b. Flashing red light Y c. Flashing yellow light N d. Flashing white light 133: INLAND ONLY A power-driven vessel operating in a narrow channel with a following current on the Great Lakes or Western Rivers is meeting an upbound vessel. Which statement is TRUE?
Y a. The downbound vessel has the right of way. N b. The upbound vessel must initiate the required maneuvering signals. N c. The upbound vessel must propose the manner of passing. N d. All of the above 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 273: INLAND ONLY While underway you sight the lights shown with the yellow lights flashing, you should __________. (DIAGRAM 81 )
N a. wait until the vessel ahead crosses your bow N b. stop until the red lights turn green N c. proceed leaving all the lights on your starboard side Y d. pass between the two sets of vertical red lights 277: INLAND ONLY While underway you sight the lights shown with the yellow lights flashing. The lights displayed should be __________. (DIAGRAM 81 )
Y a. visible at night and during periods of restricted visibility N b. visible for at least one mile N c. more than 50 meters apart N d. flashing at intervals of 120 flashes per minute 361: BOTH INTERNATIONAL & INLAND Two power-driven vessels are crossing as shown. Vessel "A" sounds two short blasts on the whistle. You are on vessel "B" and are in doubt that sufficient action is being taken by vessel "A" to avoid collision. You should __________. (DIAGRAM 42 )
N a. maintain course and speed N b. alter course to the left and increase speed Y c. sound five or more short and rapid blasts N d. None of the above 365: 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 )
Y a. stand-on vessel N b. give-way vessel N c. overtaking vessel N d. None of the above 4128: BOTH INTERNATIONAL & INLAND Which display indicates a vessel conducting mineclearance operations?
N a. Three balls in a vertical line N b. Two balls in a vertical line Y c. One ball near the foremast and one ball at each yardarm N d. One diamond near the foremast and one ball at each yardarm 4157: BOTH INTERNATIONAL & INLAND Which vessel may exhibit identifying lights when not actually engaged in her occupation?
N a. A trawler N b. A fishing vessel N c. A tug Y d. None of the above 4268: BOTH INTERNATIONAL & INLAND Your vessel is at anchor in fog. The fog signal of another vessel, apparently underway, has been growing louder and the danger of collision appears to exist. In addition to your fog signal, what signal may be used to indicate your presence?
N a. No signal other than your fog signal may be used. N b. One prolonged, one short, and one prolonged whistle blast N c. One prolonged followed by two short whistle blasts Y d. One short, one prolonged, and one short whistle blast 4388: BOTH INTERNATIONAL & INLAND A stand-on vessel is __________.
N a. required to give way in a crossing situation N b. required to sound the first passing signal in a meeting situation N c. free to maneuver in any crossing or meeting situation as it has the right-of-way Y d. required to maintain course and speed in a crossing situation but may take action to avoid collision 4394: BOTH INTERNATIONAL & INLAND A partly submerged vessel or object being towed, which is not readily noticeable, shall show __________.
N a. yellow lights at each end N b. two red lights in a vertical line N c. a black ball Y d. a diamond shape 4398: BOTH INTERNATIONAL & INLAND A tugboat displaying the day-shape shown __________. (DIAGRAM 10 )
N a. is at anchor N b. is not under command Y c. has a tow that exceeds 200 meters in length N d. has a tow that is carrying dangerous cargo 4490: BOTH INTERNATIONAL & INLAND Which vessel would be required to show a white light from a lantern exhibited in sufficient time to prevent collision?
N a. A 9-meter sailing vessel Y b. A rowboat N c. A 6-meter motorboat N d. A small vessel fishing 4500: BOTH INTERNATIONAL & INLAND Your power-driven vessel is stopped and making no way, but is not in any way disabled. Another vessel is approaching you on your starboard beam. Which statement is TRUE?
N a. The other vessel must give way since your vessel is stopped. Y b. Your vessel is the give-way vessel in a crossing situation. N c. You should be showing the lights or shapes for a vessel not under command. N d. You should be showing the lights or shapes for a vessel restricted in her ability to maneuver. 4520: BOTH INTERNATIONAL & INLAND When anchoring a 20-meter vessel at night, you must show __________.
Y a. one all-round white light N b. two all-round white lights N c. one all-round white light and the stern light N d. one all-round white light and a flare up light 4542: BOTH INTERNATIONAL & INLAND A vessel is towing and carrying the required lights on the masthead. What is the visibility arc of these lights?
N a. 112.5° N b. 135.0° Y c. 225.0° N d. 360.0° 4544: BOTH INTERNATIONAL & INLAND You are approaching another vessel on crossing courses. She is approximately half a mile distant and is presently on your starboard bow. You believe she will cross ahead of you. She then sounds a whistle signal of five short blasts. You should __________.
N a. answer the signal and hold course and speed N b. reduce speed slightly to make sure she will have room to pass Y c. make a large course change, accompanied by the appropriate whistle signal, and slow down if necessary N d. wait for another whistle signal from the other vessel 4611: BOTH INTERNATIONAL & INLAND A vessel, which does not normally engage in towing operations, is towing a vessel in distress. She __________.
Y a. need not show the lights for a vessel engaged in towing, if it is impractical to do so N b. may show the lights for a vessel not under command N c. must show a yellow light above the stern light N d. must show the lights for a vessel towing 4650: BOTH INTERNATIONAL & INLAND Which lights would be shown at night by a vessel which is restricted in her ability to deviate from her course?
N a. Three red lights in a vertical line N b. Three white lights in a vertical line N c. Three lights in a vertical line, the highest and lowest white and the middle red Y d. Three lights in a vertical line, the highest and lowest red and the middle white 4710: BOTH INTERNATIONAL & INLAND Which vessel would exhibit sidelights when underway and not making way?
N a. A vessel engaged in fishing N b. A vessel not under command N c. A vessel engaged in dredging Y d. A power-driven vessel 4819: BOTH INTERNATIONAL & INLAND Which breadth shown represents the breadth as defined in the Rules? (DIAGRAM 87 )
Y a. A N b. B N c. C N d. D 4842: BOTH INTERNATIONAL & INLAND Which vessel is "underway" according to the Rules?
N a. A vessel made fast to a single point mooring buoy Y b. A vessel engaged in towing, not making way N c. A pilot vessel at anchor N d. A vessel which has run aground 4871: BOTH INTERNATIONAL & INLAND Your vessel is NOT making way, but is not in any way disabled. Another vessel is approaching you on your starboard beam. Which statement is TRUE?
Y a. Your vessel is obligated to stay out of the way. N b. The other vessel must give way, since your vessel is stopped. N c. You should be showing the lights or shapes for a vessel not under command. N d. You should be showing the lights or shapes for a vessel restricted in her ability to maneuver. 8039: INTERNATIONAL ONLY When vessels are in sight of one another, two short blasts from one of the vessels means __________.
N a. "I am altering my course to starboard" Y b. "I am altering my course to port" N c. "I intend to change course to starboard" N d. "I intend to change course to port" 8076: INTERNATIONAL ONLY You are underway in a narrow channel, and you are being overtaken by a vessel astern. After the overtaking vessel sounds the proper signal indicating his intention to pass your vessel on your starboard side, you signal your agreement by sounding __________.
N a. two prolonged followed by two short blasts Y b. one prolonged, one short, one prolonged, and one short blast N c. one short blast N d. two prolonged blasts 8089: BOTH INTERNATIONAL AND INLAND A towing light __________.
N a. flashes at regular intervals of 50-70 flashes per minute Y b. is yellow in color N c. shows an unbroken light over an arc of the horizon of not less than 180° nor more than 225° N d. All of the above