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.
35: INLAND ONLY You are on vessel "B" and vessel "A" desires to overtake you on your starboard side as shown. After the vessels have exchanged one blast signals, you should __________. (DIAGRAM 9 )
N a. alter course to the left N b. slow your vessel until vessel "A" has passed Y c. hold course and speed N d. alter course to the left or right to give vessel "A" more sea room 86: INLAND ONLY What is the whistle signal used to indicate a power-driven vessel leaving a dock?
N a. One short blast N b. Three short blasts Y c. One prolonged blast N d. Three prolonged blasts 97: INLAND ONLY Which statement is TRUE concerning a passing agreement made by radiotelephone?
N a. Such an agreement is prohibited by the Rules. N b. A vessel which has made such an agreement must also sound whistle signals. N c. Whistle signals must still be exchanged when passing within half a mile of each other. Y d. If agreement is reached by radiotelephone, whistle signals are optional. 134: INLAND ONLY Which is TRUE of a vessel downbound with a following current when meeting an upbound vessel on the Western Rivers?
N a. Neither vessel has the right-of-way. Y b. She has the right-of-way only if she is power-driven. N c. She does not have the right-of-way, since the other vessel is not crossing the river. N d. She must wait for a whistle signal from the upbound vessel. 195: BOTH INTERNATIONAL & INLAND At night, you see the lights shown. This would indicate a vessel __________. (DIAGRAM 78 )
N a. restricted in her ability to maneuver N b. engaged in fishing and making way Y c. on pilotage duty and underway N d. not under command 297: BOTH INTERNATIONAL & INLAND The display of lights shown could represent a __________. (DIAGRAM 48 )
Y a. tug and a barge being towed astern N b. vessel constrained by her draft N c. vessel in the nondisplacement mode N d. vessel not under command 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 728: 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. river bank protection N b. conducting submarine operations Y c. firefighting N d. law enforcement 4108: BOTH INTERNATIONAL & INLAND At specified intervals, a vessel towing in fog shall sound __________.
N a. one prolonged blast N b. two prolonged blasts Y c. one prolonged and two short blasts in succession N d. one prolonged and three short blasts in succession 4122: BOTH INTERNATIONAL & INLAND Which vessel may sound the danger signal?
N a. The stand-on vessel in a crossing situation N b. The give-way vessel in a crossing situation N c. A vessel at anchor Y d. All of the above 4146: BOTH INTERNATIONAL & INLAND When taking action to avoid collision, you should __________.
Y a. make sure the action is taken in enough time N b. not make any large course changes N c. not make any large speed changes N d. All of the above 4158: BOTH INTERNATIONAL & INLAND A 25-meter vessel trawling will show the dayshape(s) consisting of __________.
N a. a basket N b. two balls Y c. two cones, apexes together N d. a cone, apex downward 4160: BOTH INTERNATIONAL & INLAND A fog signal of one short, one prolonged, and one short blast may be sounded by a __________.
Y a. vessel at anchor N b. vessel not under command N c. vessel towing N d. All of the above 4224: 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 required to __________.
N a. maintain course and speed Y b. keep clear N c. sound one blast and turn to starboard N d. stop her engines 4245: BOTH INTERNATIONAL & INLAND Underway at night, a vessel displaying the lights shown is __________. (DIAGRAM 62 )
N a. engaged in fishing N b. mine sweeping N c. a pilot boat Y d. under sail 4286: BOTH INTERNATIONAL & INLAND A vessel which is underway at night and displaying the lights shown is __________. (DIAGRAM 69 )
Y a. engaged in trawling N b. minesweeping N c. under sail N d. a pilot boat 4319: BOTH INTERNATIONAL & INLAND Which statement about a 25-meter auxiliary sailboat is TRUE?
N a. The sidelights and stern light may be combined in one lantern. N b. When operating under sail, her fog signal would consist of one prolonged blast. N c. She may show a green light over a red light at the masthead. Y d. She must show fixed sidelights. 4375: BOTH INTERNATIONAL & INLAND You are underway in fog when you hear a signal of three strokes of a bell, a rapid ringing of the bell, and three more strokes of the bell. This signal indicates a vessel __________.
N a. at anchor, giving warning Y b. aground N c. at anchor, greater than 100 meters N d. not under command at anchor 4447: BOTH INTERNATIONAL & INLAND A rigid replica of the International Code flag "A" may be shown by a vessel __________.
N a. pulling a submarine cable Y b. engaged in diving operations N c. engaged in underway replenishment N d. transferring explosives 4509: BOTH INTERNATIONAL & INLAND A vessel nearing a bend or an area of a channel or fairway where other vessels may be hidden by an obstruction shall __________.
N a. sound the danger signal Y b. sound a prolonged blast N c. take all way off N d. post a look-out 4516: BOTH INTERNATIONAL & INLAND Which vessel is, by definition, unable to keep out of the way of another vessel?
N a. Vessel engaged in fishing Y b. Vessel restricted in her ability to maneuver N c. Sailing vessel N d. Vessel towing 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 4555: BOTH INTERNATIONAL & INLAND A sailing vessel is proceeding along a narrow channel and can safely navigate ONLY inside the channel. The sailing vessel approaches a vessel engaged in fishing. Which statement is TRUE?
Y a. The fishing vessel is directed not to impede the passage of the sailing vessel. N b. The sailing vessel must keep out of the way of the fishing vessel. N c. Each vessel should move to the edge of the channel on her port side. N d. Each vessel should be displaying signals for a vessel constrained by her draft. 4601: BOTH INTERNATIONAL & INLAND A vessel towing a barge astern would show, at the stern __________.
N a. only a stern light Y b. a towing light above the stern light N c. two towing lights in a vertical line N d. two white lights in a vertical line 4640: BOTH INTERNATIONAL & INLAND When two power-driven vessels are crossing, which vessel is the stand-on vessel?
Y a. The vessel which is to starboard of the other vessel N b. The vessel which is to port of the other vessel N c. The larger vessel N d. The vessel that sounds the first whistle signal 4651: BOTH INTERNATIONAL & INLAND Which vessel is the stand-on vessel when two vessels crossing in fog are NOT in sight of one another?
N a. The vessel which has the other on her own starboard side N b. The vessel which has the other on her own port side N c. The one which hears the other's fog signal first Y d. Neither vessel is the stand-on vessel. 4652: BOTH INTERNATIONAL & INLAND A vessel displaying the day-shapes shown is __________. (DIAGRAM 18 )
N a. towing astern with a tow greater than 200 meters in length N b. not under command Y c. dredging N d. carrying dangerous cargo 4681: BOTH INTERNATIONAL & INLAND A vessel may exhibit lights other than those prescribed by the Rules as long as the additional lights __________.
N a. are not the same color as either side light N b. have a lesser range of visibility than the prescribed lights Y c. do not impair the visibility or distinctive character of the prescribed lights N d. All of the above 4829: BOTH INTERNATIONAL & INLAND The term "restricted visibility", when used in the Rules, refers to __________.
N a. situations when you can see vessels on radar that you cannot see visually N b. visibility of less than half a mile Y c. any condition where visibility is restricted N d. visibility where you cannot see shore 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"