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.
96: INLAND ONLY You are approaching a sharp bend in a river. You have sounded a prolonged blast and it has been answered by a vessel on the other side of the bend. Which statement is TRUE?
Y a. Both vessels must exchange passing signals when in sight and passing within one-half mile of each other. N b. No further whistle signals are necessary. N c. The vessel downriver must stop her engines and navigate with caution. N d. Both vessels must immediately sound passing signals whether or not they are in sight of each other. 178: BOTH INTERNATIONAL & INLAND Which display of lights shown indicates a 65-meter tug towing a barge astern, length of tow 120 meters? (DIAGRAM 72 )
N a. A N b. B Y c. C N d. D 179: BOTH INTERNATIONAL & INLAND Which display of lights shown indicates a dredge underway and not dredging? (DIAGRAM 72 )
N a. A Y b. B N c. C N d. D 208: INTERNATIONAL ONLY A single vessel being towed alongside shall show __________.
N a. one all-round white light Y b. sidelights and a stern light N c. only the outboard sidelight and a stern light N d. a masthead light, sidelights, and a stern light 247: INLAND ONLY You are on vessel "I" and in sight of vessel "II" as shown. Vessel "II" sounds one short blast. If you agree, you should __________. (DIAGRAM 36 )
Y a. sound one short blast and hold course and speed N b. hold course and speed and sound no signal N c. sound one short blast and slow down or turn to starboard N d. sound the danger signal and slow to moderate speed 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 328: BOTH INTERNATIONAL & INLAND Diagram "D" shows the arc of visibility of a __________. (DIAGRAM 23 )
N a. white masthead light N b. green sidelight N c. stern light Y d. None of the above 363: 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 N c. overtaking vessel Y d. None of the above 4033: BOTH INTERNATIONAL & INLAND The duration of a prolonged blast of the whistle is __________.
N a. 2 to 4 seconds Y b. 4 to 6 seconds N c. 6 to 8 seconds N d. 8 to 10 seconds 4077: BOTH INTERNATIONAL & INLAND A vessel at anchor shall display, between sunrise and sunset, on the forward part of the vessel where it can best be seen __________.
Y a. one black ball N b. two black balls N c. one red ball N d. two orange and white balls 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 4196: BOTH INTERNATIONAL & INLAND What lights must be shown on a barge being towed astern at night?
N a. A white light at each corner N b. A white light fore and aft Y c. Sidelights and a stern light N d. A stern light only 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 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 4297: BOTH INTERNATIONAL & INLAND Which requirement must be met in order for a stand-on vessel to take action to avoid collision?
Y a. Risk of collision must exist. N b. The give-way vessel must have taken action first. N c. The vessels must be within half a mile of each other. N d. There are no requirements to be met. The stand-on vessel may take action anytime. 4316: BOTH INTERNATIONAL & INLAND When shall the stand-on vessel in a crossing situation take action to avoid the other vessel?
N a. When a risk of collision exists Y b. When action by the give-way vessel alone will not prevent a collision N c. When the bearing to give-way vessel becomes steady N d. When the vessels become less than 1/2 mile apart 4403: BOTH INTERNATIONAL & INLAND What day-shape must be shown by a vessel over 20 meters fishing which has gear extending more than 150 meters horizontally outward from it?
N a. One black ball N b. One diamond shape Y c. One cone with its apex upwards N d. One basket 4405: BOTH INTERNATIONAL & INLAND A vessel underway but not making way and fishing other than trawling will show which lights?
N a. A white light over a red light Y b. A red light over a white light N c. A white light over a red light, sidelights, and a stern light N d. A red light over a white light, sidelights, and a stern light 4407: BOTH INTERNATIONAL & INLAND A 200-meter vessel is aground in restricted visibility. Which signal is optional?
N a. A bell signal N b. A gong signal Y c. A whistle signal N d. All of the above 4414: BOTH INTERNATIONAL & INLAND Every vessel which is directed by these Rules to keep out of the way of another vessel shall, if the circumstances of the case admit, avoid __________.
Y a. crossing ahead of the other N b. crossing astern of the other N c. passing port to port N d. passing starboard to starboard 4415: BOTH INTERNATIONAL & INLAND Which signal may be used by a vessel that is in doubt as to whether sufficient action is being taken by another vessel to avoid collision?
N a. A continuous sounding of the fog horn 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 4476: BOTH INTERNATIONAL & INLAND At night you sight a vessel displaying one green light. This light could indicate a __________.
N a. vessel drifting N b. vessel at anchor N c. small motorboat underway Y d. sailboat underway 4482: BOTH INTERNATIONAL & INLAND You are underway in a narrow channel and you are being overtaken by a vessel astern. The overtaking vessel sounds a signal indicating his intention to pass your vessel on your starboard side. If such an action appears dangerous you should sound __________.
Y a. five short and rapid blasts N b. three short and rapid blasts N c. one prolonged followed by one short blast N d. one prolonged, one short, one prolonged, and one short blast in that order 4543: BOTH INTERNATIONAL & INLAND Which situation would be a "special circumstance" under the Rules?
N a. Vessel at anchor Y b. More than two vessels meeting N c. Speed in fog N d. Two vessels crossing 4585: BOTH INTERNATIONAL & INLAND While underway at night you are coming up on a vessel from astern. What lights would you expect to see?
N a. Red and green sidelights N b. Two white lights N c. One white light and red and green sidelights Y d. One white light 4626: BOTH INTERNATIONAL & INLAND A vessel being towed astern, where the length of the tow exceeds 200 meters, will exhibit __________.
N a. two balls in a vertical line Y b. a diamond shape where it can best be seen N c. a ball on each end of the tow N d. no day-shape 4707: BOTH INTERNATIONAL & INLAND While underway at night you are coming up on a vessel from astern. Which light(s) would you expect to see?
Y a. A stern light only N b. Two masthead lights N c. Both sidelights and the stern light N d. Sidelights only 4728: BOTH INTERNATIONAL & INLAND Which statement is TRUE, according to the Rules?
N a. A vessel engaged in fishing shall keep out of the way of a sailing vessel. N b. A vessel not under command shall keep out of the way of a vessel engaged in fishing. Y c. 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 d. A vessel not under command shall keep out of the way of a vessel restricted in her ability to maneuver. 6570: BOTH INTERNATIONAL & INLAND A traffic separation zone is that part of a traffic separation scheme which __________.
N a. is between the scheme and the nearest land N b. contains all the traffic moving in one direction N c. is designated as an anchorage area Y d. separates traffic proceeding in one direction from traffic proceeding in the opposite direction 8111: INTERNATIONAL ONLY Your vessel is backing out of a slip in a harbor. Visibility is restricted. You should sound __________.
Y a. one prolonged blast only N b. one prolonged blast followed by three short blasts when the last line is taken aboard N c. one prolonged blast followed by three short blasts when leaving the slip N d. the danger signal