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.
103: INLAND ONLY Which light display would mark the opening in a pipeline where vessels could pass through?
N a. Three red lights in a vertical line on each side of the opening Y b. Two red lights in a vertical line on each side of the opening N c. Three white lights in a vertical line on each side of the opening N d. Two white lights in a vertical line on each side of the opening 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 258: INLAND ONLY Vessels "A" and "B" are meeting on a river as shown and will pass 1/4 mile apart. Which statement is TRUE? (DIAGRAM 41 )
N a. Whistle signals must be exchanged in all situations when passing within one half mile. Y b. If a passing agreement is reached by radiotelephone, whistle signals are optional. N c. If a passing agreement is reached by radiotelephone whistle signals are still required. N d. None of the above 316: BOTH INTERNATIONAL & INLAND At night a vessel displaying the lights as shown is __________. (DIAGRAM 82 )
N a. a pilot boat N b. sailing Y c. fishing N d. anchored 342: 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 leave you on my starboard side" N b. "I am operating astern propulsion port side" N c. "I am altering my course to starboard" Y d. None of the above 354: 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 leave you on your starboard side" Y b. "I am altering my course to starboard" N c. "I am altering my course to port" N d. None of the above 4002: BOTH INTERNATIONAL & INLAND While underway in fog, you hear a prolonged blast from another vessel. This signal indicates a __________.
N a. sailboat underway N b. vessel underway, towing Y c. power-driven vessel underway, making way N d. vessel being towed 4049: BOTH INTERNATIONAL & INLAND Your vessel is NOT making way, but is not in any way disabled. Another vessel is approaching you on your starboard beam. Which statement is TRUE?
N a. The other vessel must give way since your vessel is stopped. Y b. Your vessel is the give-way vessel in a crossing situation. N c. You should be showing the lights or shapes for a vessel not under command. N d. You should be showing the lights or shapes for a vessel restricted in her ability to maneuver. 4055: BOTH INTERNATIONAL & INLAND When shall the stand-on vessel change course and speed?
N a. The stand-on vessel may change course and speed at any time as it has the right-of-way N b. After the give-way vessel sounds one blast in a crossing situation Y c. When action by the give-way vessel alone cannot prevent collision N d. When the two vessels become less than half a mile apart 4074: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning a vessel of 75 meters in length, at anchor?
N a. She must show an all-round white light forward. N b. She must show a second all-round white light aft. N c. She may use her working lights to illuminate her decks. Y d. All of the above 4142: BOTH INTERNATIONAL & INLAND A vessel engaged in fishing must display a light in the direction of any gear that extends outward more than 150 meters. The color of this light is __________.
Y a. white N b. green N c. red N d. yellow 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 4164: BOTH INTERNATIONAL & INLAND While underway in fog you hear a whistle signal consisting of one prolonged blast followed immediately by two short blasts. This signal is sounded in fog by __________.
N a. vessels at anchor, not engaged in fishing Y b. vessels underway and towing N c. vessels in danger N d. pilot vessels 4177: BOTH INTERNATIONAL & INLAND Your vessel is underway in reduced visibility. You hear the fog signal of another vessel about 30° on your starboard bow. If danger of collision exists, you must __________.
N a. alter course to starboard to pass around the other vessel's stern N b. slow your engines and let the other vessel pass ahead of you Y c. reduce your speed to bare steerageway N d. alter course to port and pass the other vessel on its port side 4235: BOTH INTERNATIONAL & INLAND A vessel displaying the day-shapes shown is __________. (DIAGRAM 7 )
Y a. broken down N b. fishing N c. a minesweeper N d. transferring dangerous cargo 4266: BOTH INTERNATIONAL & INLAND On open waters, a power-driven vessel shall keep out of the way of a __________.
N a. vessel on her port side that is crossing her course N b. vessel that is overtaking her N c. seaplane on the water Y d. sailing vessel 4269: BOTH INTERNATIONAL & INLAND All of the following are distress signals under the Rules EXCEPT __________.
Y a. International Code Signal "AA" N b. orange-colored smoke N c. red flares N d. the repeated raising and lowering of outstretched arms 4301: BOTH INTERNATIONAL & INLAND In which situation would risk of collision definitely exist?
N a. A vessel is 22 degrees on your port bow, range increasing, bearing changing slightly to the right. N b. A vessel is broad on your starboard beam, range decreasing, bearing changing rapidly to the right. N c. A vessel is 22 degrees abaft your port beam, range increasing, bearing is constant. Y d. A vessel is on your starboard quarter, range decreasing, bearing is constant. 4315: INTERNATIONAL ONLY While underway and in sight of another vessel you put your engines on astern propulsion. Which statement concerning whistle signals is TRUE?
Y a. You must sound three short blasts on the whistle. N b. You must sound one blast if backing to starboard. N c. You must sound whistle signals only if the vessels are meeting. N d. You need not sound any whistle signals. 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 4451: BOTH INTERNATIONAL & INLAND Every vessel should at all times proceed at a "safe speed". "Safe speed" is defined as that speed where __________.
N a. you can stop within your visibility range Y b. you can take proper and effective action to avoid collision N c. you are traveling slower than surrounding vessels N d. no wake comes from your vessel 4471: BOTH INTERNATIONAL & INLAND A vessel towing astern in an operation which severely restricts the towing vessel and her tow in their ability to deviate from their course shall, when making way, show __________.
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 4580: BOTH INTERNATIONAL & INLAND You see a vessel displaying ONLY the lights shown. This could be a __________. (DIAGRAM 45 )
Y a. pilot vessel less than 50 meters, underway and NOT engaged on pilotage duty N b. vessel engaged in fishing N c. vessel aground less than 50 meters N d. vessel engaged in dredging at anchor with an obstruction on one side 4619: BOTH INTERNATIONAL & INLAND Which vessel is NOT to impede the passage of a vessel which can only navigate safely within a narrow channel?
N a. Any vessel less than 20 meters in length N b. Any sailing vessel N c. A vessel engaged in fishing Y d. All of the above 4628: BOTH INTERNATIONAL & INLAND A sailing vessel displaying the day-shape shown is indicating that she is __________. (DIAGRAM 35 )
Y a. being propelled by power as well as sail N b. on a starboard tack N c. close-hauled and has difficulty maneuvering N d. fishing as well as sailing 4656: BOTH INTERNATIONAL & INLAND A vessel fishing at night, with gear extending more than 150 meters horizontally outwards, will show in the direction of the gear __________.
Y a. one white light N b. two vertical white lights N c. one yellow light N d. two vertical yellow lights 8045: 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. No signal is necessary. N b. Two prolonged blasts N c. Two short blasts Y d. Two prolonged followed by two short blasts 8096: INTERNATIONAL ONLY A vessel constrained by her draft may display __________.
N a. three all-round red lights instead of the lights required for a power-driven vessel of her class N b. the same lights as a vessel restricted in her ability to maneuver Y c. three all-round red lights in addition to the lights required for a power-driven vessel of her class N d. the lights for a power-driven vessel which is not under command 8136: INTERNATIONAL ONLY A power-driven vessel pushing ahead or towing alongside will show sidelights, a stern light, and __________.
N a. an all-round red light where it can best be seen N b. two yellow masthead lights in a vertical line Y c. two masthead lights in a vertical line N d. a single white light forward