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.
23: INLAND ONLY Passing signals shall be sounded on inland waters by __________.
N a. all vessels upon sighting another vessel rounding a bend in the channel N b. towing vessel when meeting another towing vessel on a clear day with a 0.6 mile CPA (Closest Point of Approach) Y c. a power-driven vessel when crossing less than half a mile ahead of another power-driven vessel N d. All of the above 56: INLAND ONLY Your vessel must remain in a narrow channel for safe operation. Another vessel is crossing the channel from your starboard. You do not think she will pass safely. You MUST __________.
N a. stop your vessel, since the other vessel has the right of way N b. sound one short blast of the whistle, and turn to starboard Y c. sound the danger signal N d. stop your engines, and you may sound the danger signal 99: INLAND ONLY A power-driven vessel when pushing ahead or towing alongside on the Western Rivers (above the Huey P. Long Bridge on the Mississippi River) shall exhibit __________.
N a. two masthead lights, sidelights, and stern light N b. two masthead lights, sidelights, and two towing lights Y c. sidelights and two towing lights N d. one masthead light, sidelights, and stern light 207: INLAND ONLY What lights are required for a single barge being towed alongside?
N a. Sidelights and a stern light Y b. Sidelights, a special flashing light, and a stern light N c. Sidelights and a special flashing light N d. Sidelights, a towing light, and a stern light 248: BOTH INTERNATIONAL & INLAND Vessels "I" and "II" are power-driven vessels. You are on vessel "I" as shown. You are the __________. (DIAGRAM 36 )
N a. give-way vessel Y b. stand-on vessel N c. overtaking vessel N d. None of the above 300: BOTH INTERNATIONAL & INLAND A vessel displaying the lights shown is a(n) __________. (DIAGRAM 79 )
N a. sailing vessel Y b. vessel towing astern N c. vessel engaged in fishing N d. vessel dredging 324: BOTH INTERNATIONAL & INLAND Which diagram shows the arc of visibility of a green sidelight? (DIAGRAM 23 )
N a. A Y b. B N c. C N d. D 353: INTERNATIONAL ONLY Two power-driven vessels are crossing within one half mile of each other as shown. Vessel "A" sounds one short blast of the whistle. This signal means __________. (DIAGRAM 42 )
N a. "I intend to overtake you on your starboard side" N b. "I am operating astern propulsion" N c. "I intend to leave you on my port side" Y d. None of the above 4013: BOTH INTERNATIONAL & INLAND A vessel displaying the day-shapes shown is __________. (DIAGRAM 11 )
N a. towing N b. conducting underwater operations N c. drifting Y d. aground 4107: BOTH INTERNATIONAL & INLAND A power-driven vessel has on her port side a sailing vessel which is on a collision course. The power-driven vessel is to __________.
N a. maintain course and speed Y b. keep clear, passing at a safe distance N c. sound one blast and turn to starboard N d. stop her engines 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 4190: BOTH INTERNATIONAL & INLAND A power-driven vessel making way through the water sounds a fog signal of __________.
Y a. one prolonged blast at intervals of not more than two minutes N b. two prolonged blasts at intervals of not more than two minutes N c. one prolonged blast at intervals of not more than one minute N d. two prolonged blasts at intervals of not more than one minute 4191: BOTH INTERNATIONAL & INLAND You are on watch in the fog. Your vessel is proceeding at a safe speed when you hear a fog signal ahead of you. The Rules require you to navigate with caution and, if danger of collision exists, __________.
N a. slow to less than 2 knots N b. stop your engines Y c. reduce to bare steerageway N d. begin a radar plot 4204: BOTH INTERNATIONAL & INLAND Fog signals, required under the Rules for vessels underway, shall be sounded __________.
N a. only on the approach of another vessel N b. only when vessels are in sight of each other N c. at intervals of not more than one minute Y d. at intervals of not more than two minutes 4218: BOTH INTERNATIONAL & INLAND A vessel displaying the day signal shown is __________. (DIAGRAM 7 )
Y a. not under command N b. a dredge underway and dredging N c. fishing N d. a hydrographic survey vessel underway 4218: BOTH INTERNATIONAL & INLAND A vessel displaying the day signal shown is __________. (DIAGRAM 7 )
Y a. not under command N b. a dredge underway and dredging N c. fishing N d. a hydrographic survey vessel underway 4292: BOTH INTERNATIONAL & INLAND While underway in fog, you hear a signal of one prolonged blast followed by three short blasts. This is the fog signal for a vessel __________.
N a. towing Y b. being towed (manned) N c. under sail N d. at anchor 4444: BOTH INTERNATIONAL & INLAND Which vessel must exhibit a conical shape, apex downwards?
N a. A 10-meter vessel engaged in fishing Y b. A 15-meter vessel proceeding under sail when also being propelled by machinery N c. A 20-meter vessel restricted in her ability to maneuver N d. All of the above 4456: BOTH INTERNATIONAL & INLAND What is the required fog signal for a manned vessel being towed at night?
N a. One prolonged followed by one short blast Y b. One prolonged followed by three short blasts N c. One prolonged followed by two short blasts N d. Two prolonged blasts 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° 4553: BOTH INTERNATIONAL & INLAND Which day-shape would a vessel aground show during daylight?
N a. One black ball N b. Two black balls Y c. Three black balls N d. Four black balls 4653: BOTH INTERNATIONAL & INLAND A vessel showing this day-shape __________. (DIAGRAM 34 )
N a. has a tow which exceeds 200 meters in length N b. is engaged in surveying or underwater work N c. is not under command Y d. is fishing 4686: BOTH INTERNATIONAL & INLAND If underway in low visibility and sounding fog signals, what changes would you make in the fog signal IMMEDIATELY upon losing the power plant and propulsion?
Y a. Begin sounding one prolonged blast followed by two short blasts at two-minute intervals. N b. Begin sounding one prolonged blast followed by three short blasts at two-minute intervals. N c. Begin sounding two prolonged blasts at two-minute intervals. N d. No change should be made in the fog signal. 4691: BOTH INTERNATIONAL & INLAND A 200-meter vessel is aground in fog. Which signal is optional?
N a. A bell signal Y b. A whistle signal N c. A gong signal N d. All of the above are mandatory. 4715: BOTH INTERNATIONAL & INLAND What is a "vessel restricted in her ability to maneuver"?
N a. A deep-draft vessel that can only navigate in a dredged channel N b. A vessel fishing with a bottom trawl that must remain on course N c. A large tanker that is being towed as a dead ship to dry dock Y d. A vessel laying revetment mats to provide bank protection along a channel 4865: BOTH INTERNATIONAL & INLAND Your 15-meter vessel is crossing a narrow channel and a large cargo vessel to starboard is within the channel and crossing your course. You should __________.
N a. hold your course and speed N b. sound the danger signal Y c. keep out of the way of the cargo vessel N d. do not cross the channel 4872: BOTH INTERNATIONAL & INLAND If you are the stand-on vessel in a crossing situation, you may take action to avoid collision by your maneuver alone. When may this action be taken?
N a. As soon as you determine that risk of collision exists N b. Only when you have reached extremis Y c. When it becomes apparent to you that the give-way vessel is not taking appropriate action N d. When you determine that your present course will cross ahead of the other vessel 8043: INTERNATIONAL ONLY Which vessel would NOT sound a fog signal of one prolonged and two short blasts?
N a. A vessel not under command N b. A vessel constrained by her draft Y c. A vessel being towed N d. A vessel sailing 8075: INTERNATIONAL ONLY You intend to overtake a vessel in a narrow channel, and you intend to pass along the vessel's port side. How should you signal your intention?
N a. Two short blasts followed by two prolonged blasts Y b. Two prolonged followed by two short blasts N c. Two prolonged blasts only N d. Two short blasts only 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.