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.
12: INLAND ONLY Your vessel is meeting another vessel head-on. To comply with the steering and sailing rules, you should __________.
N a. sound the danger signal N b. sound one prolonged and two short blasts N c. exchange two short blasts Y d. exchange one short blast 114: INLAND ONLY At night, what lights are required on barges moored in a group formation more than two barges wide?
N a. All-round yellow lights placed at the corners of each barge in the group N b. Two yellow lights in a vertical line at the corner extremities of the group Y c. Two unobstructed all-round white lights N d. Two unobstructed all-round red lights 131: INLAND ONLY You are navigating in a narrow channel and must remain in the channel for safe operation. Another vessel is crossing the channel ahead of you from your starboard. You are doubtful of intention of the crossing vessel. You MUST __________.
N a. stop your vessel, since the other vessel has the right of way Y b. sound the danger signal N c. contact him on the radiotelephone to make a passing agreement N d. stop your engines until you have slowed to bare steerageway 205: INTERNATIONAL ONLY Which whistle signal may be sounded by one of two vessels in sight of each other?
N a. Four short blasts N b. One prolonged blast Y c. One short blast N d. One short, one prolonged, and one short blast 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 4054: BOTH INTERNATIONAL & INLAND A vessel is "engaged in fishing" when __________.
N a. her gear extends more than 100 meters from the vessel N b. she is using any type of gear, other than lines Y c. she is using fishing apparatus which restricts her maneuverability N d. she has any fishing gear on board 4103: BOTH INTERNATIONAL & INLAND Which is the danger signal?
N a. A continuous sounding of the fog signal N b. Firing a gun every minute Y c. Five or more short rapid blasts on the whistle N d. One prolonged blast on the whistle 4147: BOTH INTERNATIONAL & INLAND Which vessel would have no white lights visible when meeting her head-on?
N a. A vessel trawling N b. A vessel restricted in her ability to maneuver N c. A vessel mineclearing Y d. A vessel not under command 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 4311: BOTH INTERNATIONAL & INLAND Which vessel would show 3 day-shapes in a vertical line, the highest and lowest being balls and the middle shape being a diamond?
N a. Vessel not under command N b. Vessel constrained by her draft N c. Vessel minesweeping Y d. Vessel restricted in her ability to maneuver 4317: BOTH INTERNATIONAL & INLAND What signal 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 4355: BOTH INTERNATIONAL & INLAND You are crossing a narrow channel in an 18-meter tug when you sight a loaded tankship off your port bow coming up the channel. Which statement is correct?
N a. Neither vessel is the stand-on vessel because the tankship is crossing. Y b. You cannot impede the safe passage of the tankship. N c. The tankship is the stand-on vessel because it is in the channel. N d. The tankship is the stand-on vessel because it is the larger of the two vessels. 4387: BOTH INTERNATIONAL & INLAND An overtaking situation would be one in which one vessel is approaching another from more than how many degrees abaft the beam?
N a. 0° N b. 10° Y c. 22.5° N d. None of the above 4400: BOTH INTERNATIONAL & INLAND When action to avoid a close quarters situation is taken, a course change alone may be the most effective action provided that __________.
N a. it is done in a succession of small course changes N b. it is NOT done too early Y c. it is a large course change N d. the course change is to starboard 4418: BOTH INTERNATIONAL & INLAND When two vessels are in immediate danger of collision, the stand-on vessel must __________.
N a. abandon ship Y b. assist in taking whatever action is necessary to avoid collision N c. hold course and speed N d. sound a distress signal 4430: BOTH INTERNATIONAL & INLAND Which vessel does NOT sound a fog signal of one prolonged followed by two short blasts?
N a. A vessel engaged in dredging N b. A sailing vessel Y c. A vessel being towed N d. A vessel engaged in fishing 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 4602: BOTH INTERNATIONAL & INLAND A fog signal consisting of one prolonged blast followed by four short blasts would indicate the presence of a __________.
N a. vessel being towed N b. fishing vessel engaged in trawling N c. vessel at anchor warning of her location Y d. power-driven pilot vessel on station underway 4604: BOTH INTERNATIONAL & INLAND A pilot vessel may continue to sound an identity signal if she is __________.
N a. aground Y b. at anchor N c. not under command N d. being towed 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 4618: BOTH INTERNATIONAL & INLAND Which vessel would exhibit sidelights when underway and not making way?
Y a. A vessel towing astern N b. A vessel trawling N c. A vessel not under command N d. A vessel engaged in dredging operations 4633: BOTH INTERNATIONAL & INLAND If practical, when shall a manned vessel being towed sound her fog signal?
N a. Immediately before the towing vessel sounds hers Y b. Immediately after the towing vessel sounds hers N c. As close to the mid-cycle of the towing vessel's signals as possible N d. At any time as long as the interval is correct 4658: BOTH INTERNATIONAL & INLAND A 60-meter vessel which is trawling is required to show how many white masthead lights at night?
Y a. 1 N b. 2 N c. 3 N d. 4 4680: BOTH INTERNATIONAL & INLAND Day-shapes must be displayed __________.
N a. between sunset and sunrise N b. only between 8 AM and 4 PM Y c. during daylight hours in any visibility N d. during daylight hours in unrestricted visibility only 4695: BOTH INTERNATIONAL & INLAND While underway in fog, you hear a vessel ahead sound two short blasts on the whistle. You should __________.
N a. not sound any whistle signals until the other vessel is sighted Y b. sound only fog signals until the other vessel is sighted N c. sound whistle signals only if you change course N d. sound two short blasts and change course to the left 4832: BOTH INTERNATIONAL & INLAND A vessel is "in sight" of another vessel when she __________.
N a. can be observed by radar N b. has determined that risk of collision exists N c. is sounding a fog signal which can be heard on the other vessel Y d. can be observed visually from the other vessel 4862: BOTH INTERNATIONAL & INLAND You are underway in thick fog. You have not determined if risk of collision exists. Which statement is TRUE?
Y a. Your speed must be reduced to bare steerageway. N b. A look-out is not required if the radar is on. N c. Fog signals are only required when a vessel is detected by radar. N d. The radar should always be kept on a short-range scale. 6500: BOTH INTERNATIONAL & INLAND A towing vessel and her tow are severely restricted in their ability to change course. When making way, the towing vessel will show ONLY __________.
N a. the masthead lights for a towing vessel N b. the lights for a vessel restricted in her ability to maneuver N c. sidelights, stern light, and towing light Y d. All of the above. 8070: INTERNATIONAL ONLY In addition to her running lights, an underway vessel constrained by her draft may carry in a vertical line __________.
N a. a red light, a white light, and a red light N b. two red lights N c. two white lights Y d. three red lights 8121: INTERNATIONAL ONLY Which statement is TRUE, according to the Rules?
Y a. 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. N b. A vessel not under command shall keep out of the way of a vessel restricted in her ability to maneuver. N c. A fishing vessel while underway has the right-of-way over a vessel constrained by her draft. N d. A vessel not under command shall avoid impeding the safe passage of a vessel constrained by her draft.