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.
53: INLAND ONLY You are on vessel "A" and vessel "B" desires to overtake you on the starboard side as shown. After the vessels have exchanged one blast signals you should __________. (DIAGRAM 38 )
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 or right to give vessel "B" more sea room 140: INLAND ONLY You are the stand-on vessel in a crossing situation. The other vessel is showing an alternating red and yellow light. Which action should you take?
Y a. Stand on. N b. Heave to. N c. Alter course to assist. N d. Yield the right-of-way. 144: INLAND ONLY A light used to signal passing intentions must be an __________.
N a. all-round yellow light only N b. all-round white light only N c. alternating red and yellow light Y d. all-round white or yellow light 191: INLAND ONLY At night, you see the lights shown. They are shown on a __________. (DIAGRAM 75 )
N a. bow of a barge being pushed ahead N b. stern of a barge being towed astern N c. masthead of a tug towing astern Y d. stern of a tug pushing ahead 225: INLAND ONLY A barge more than 50 meters long, at anchor in a "special anchorage area designated by the Secretary", is required to show how many white anchor lights?
N a. One N b. None N c. One, on the near approach of another vessel Y d. Two 346: INLAND ONLY Two power-driven vessels are crossing within a half a mile of each other as shown. Vessel "A" sounds one short blast on the whistle. This signal means __________. (DIAGRAM 42 )
N a. "I intend to overtake you on my port side" N b. "I am operating astern propulsion" N c. "I intend to leave you on my starboard side" Y d. None of the above 364: 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 Y c. stand-on vessel N d. overtaking vessel 402: BOTH INTERNATIONAL & INLAND While underway in fog, you hear a prolonged blast from another vessel. This signal indicates a __________.
N a. sailboat making way N b. power-driven vessel making way, towing Y c. power-driven vessel making way N d. vessel being towed 4000: BOTH INTERNATIONAL & INLAND Your vessel is 75 meters in length and restricted in her ability to maneuver. Visibility is restricted. What signal do you sound if you are carrying out your work at anchor?
N a. Five seconds ringing of a bell at intervals of not more than one minute Y b. One prolonged blast followed by two short blasts on the whistle at intervals of not more than two minutes N c. Five seconds ringing of a bell and five second sounding of a gong at intervals of not more than one minute N d. Four short blasts on the whistle at intervals of not more than two minutes 4004: BOTH INTERNATIONAL & INLAND At night, a barge being towed astern must display __________.
N a. red and green sidelights only N b. a white stern light only Y c. sidelights and a stern light N d. one all-round white light 4043: BOTH INTERNATIONAL & INLAND You are the watch officer on a power-driven vessel and notice a large sailing vessel approaching from astern. You should __________.
N a. slow down N b. sound one short blast and change course to starboard N c. sound two short blasts and change course to port Y d. hold your course and speed 4068: BOTH INTERNATIONAL & INLAND In the situation illustrated, vessel I is a power-driven vessel. Vessel II is a sailing vessel with the wind dead aft. Which statement about this situation is correct? (DIAGRAM 2 )
Y a. Vessel I should keep out of the way of Vessel II. N b. Vessel II should keep out of the way of Vessel I. N c. Vessel II would normally be the stand-on vessel, but should stay out of the way in this particular situation. N d. The Rules of Special Circumstances applies, and neither vessel is the stand-on vessel. 4076: BOTH INTERNATIONAL & INLAND If a rowboat underway does NOT show the lights specified for a sailing vessel underway, it shall show a __________.
N a. white light from sunset to sunrise N b. combined lantern showing green to starboard and red to port and shown from sunset to sunrise N c. combined lantern showing green to starboard and red to port and shown in sufficient time to prevent collision Y d. white light shown in sufficient time to prevent collision 4090: BOTH INTERNATIONAL & INLAND According to the Navigation Rules, you may depart from the Rules when __________.
N a. no vessels are in sight visually N b. no vessels are visible on radar Y c. you are in immediate danger N d. out of sight of land 4102: BOTH INTERNATIONAL & INLAND A distress signal __________.
N a. consists of 5 or more short blasts of the fog signal apparatus Y b. may be used separately or with other distress signals N c. consists of the raising and lowering of a large white flag N d. is used to indicate doubt about another vessel's intentions 4137: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning lights and shapes for towing vessels?
N a. If a tow exceeds 200 meters in length, the towing vessel will display a black ball during daylight. N b. When towing astern, a vessel will carry her identification lights at the masthead in addition to her regular masthead light. N c. When towing astern, the towing vessel may show either a stern light or a towing light, but not both. Y d. If the towing vessel is over 50 meters in length, she must carry forward and after masthead lights. 4288: BOTH INTERNATIONAL & INLAND A vessel is carrying three lights in a vertical line. The highest and lowest of these are red and the middle light is white. Which statement is always TRUE?
N a. During the day, she would display three balls in a vertical line. Y b. If making way, she would show masthead lights at night. N c. If at anchor, she need not show anchor lights while displaying identifying lights. N d. Her fog signal would consist of a rapid ringing of a bell for five seconds every minute. 4352: BOTH INTERNATIONAL & INLAND What is the minimum vessel length which must show two white masthead lights, one forward and one aft, when underway at night?
N a. 7 meters N b. 20 meters Y c. 50 meters N d. 100 meters 4397: BOTH INTERNATIONAL & INLAND In a crossing situation, a vessel fishing must keep out of the way of a vessel which is __________.
N a. under sail N b. towing Y c. restricted in her ability to maneuver N d. engaged in pilotage duty 4404: BOTH INTERNATIONAL & INLAND A vessel towing astern in an operation which severely restricts the towing vessel and her tow in their ability to change course shall, when making way, exhibit __________.
N a. the masthead lights for a towing vessel N b. the lights for a vessel restricted in its ability to maneuver N c. sidelights, stern light and towing light Y d. All of the above 4441: BOTH INTERNATIONAL & INLAND At night, power-driven vessels less than 12 meters in length may, instead of the underway lights for vessels under 50 meters, show which lights?
N a. Sidelights and stern light Y b. One all-round white light and sidelights N c. Masthead light only N d. Stern light only 4541: BOTH INTERNATIONAL & INLAND The Rules state that vessels may depart from the Rules when __________.
N a. there are no other vessels around N b. operating in a narrow channel N c. the Master enters it in the ship's log Y d. necessary to avoid immediate danger 4549: BOTH INTERNATIONAL & INLAND Two sailing vessels are approaching each other as shown. Which statement is correct? (DIAGRAM 3 )
N a. Vessel "I" should stand on because she has the wind on her port side. Y b. Vessel "II" should stand on because she has the wind on her starboard side. N c. Neither vessel is the stand-on vessel because they are meeting head-on. N d. Vessel "I" should stand on because she is close-hauled. 4552: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning fog signals?
N a. All fog signals for sailing vessels are to be given at intervals of not more than one minute. N b. A vessel not under command sounds the same fog signal as a vessel towed. N c. A pilot vessel underway and making way sounds the pilot identity signal and no other signal. Y d. A vessel aground may sound a whistle signal. 4649: BOTH INTERNATIONAL & INLAND Which vessel may carry her sidelights and stern light in one combined lantern?
N a. A 10-meter power-driven vessel N b. A 15-meter vessel propelled by sail and machinery Y c. A 10-meter sailing vessel N d. All of the above 4654: BOTH INTERNATIONAL & INLAND A vessel engaged in fishing shall keep out of the way of a vessel __________.
N a. under sail Y b. restricted in her ability to maneuver N c. crossing a channel 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 4664: BOTH INTERNATIONAL & INLAND You are approaching a narrow channel. You see a vessel that can only be navigated safely within the channel. You MUST __________.
N a. hold your course and speed N b. sound the danger signal Y c. not cross the channel if you might impede the other vessel N d. initiate an exchange of passing signals 4678: BOTH INTERNATIONAL & INLAND Which is a light signal authorized by the Secretary of the Navy as an additional navigational light for a ship of war?
Y a. Intermittent flashing amber (yellow) beacon for submarines N b. Green masthead and yardarm lights indicating mine clearance operations N c. Red-white-red lights in a vertical line for a carrier, launching aircraft N d. Yellow flares indicating torpedo firing exercises 4849: BOTH INTERNATIONAL & INLAND "safe speed" is defined as that speed where __________.
N a. you can stop within your visibility range N b. the vessel is not subject to vibrations N c. you are traveling slower than surrounding vessels Y d. you can take proper and effective action to avoid collision