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.
13: INLAND ONLY Yellow lights are NOT used to identify __________.
N a. U.S. submarines N b. vessels pushing ahead Y c. law enforcement vessels N d. dredge pipelines on trestles 21: INLAND ONLY The stand-on vessel in a crossing situation sounds one short blast of the whistle. This means that the vessel __________.
N a. intends to hold course and speed N b. is changing course to starboard N c. is changing course to port Y d. intends to leave the other on her port side 229: BOTH INTERNATIONAL & INLAND Vessel "A" is overtaking vessel "B" as shown. Vessel "A" is the __________. (DIAGRAM 17 )
N a. overtaken vessel Y b. give-way vessel N c. stand-on vessel N d. None of the above 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 298: BOTH INTERNATIONAL & INLAND A vessel displaying the lights shown is a(n) __________. (DIAGRAM 79 )
N a. vessel constrained by her draft N b. law enforcement vessel N c. vessel not under command Y d. vessel towing astern 312: INLAND ONLY You see the lights shown while proceeding in a channel. What should you do? (DIAGRAM 85 )
N a. Proceed at full see speed through the two sets of double red lights. N b. Stop the vessel and await the red lights to change to green. Y c. Slow down and pass between the two sets of double red lights. N d. None of the above 4020: BOTH INTERNATIONAL & INLAND A vessel must proceed at a safe speed __________.
N a. in restricted visibility N b. in congested waters N c. during darkness Y d. at all times 4026: BOTH INTERNATIONAL & INLAND Which is a distress signal?
N a. Firing of green star shells N b. Sounding 5 short blasts on the whistle N c. Answering a one blast whistle signal with two blasts Y d. A flaming barrel of oil on deck 4042: BOTH INTERNATIONAL & INLAND A towing vessel pushing a barge ahead and rigidly connected in a composite unit shall show the lights of __________.
N a. a vessel pushing ahead Y b. a power-driven vessel, not towing N c. a barge being pushed ahead N d. either answer A or answer B 4117: BOTH INTERNATIONAL & INLAND An all-round flashing yellow light may be exhibited by a(n) __________.
N a. vessel not under command Y b. air cushion vessel in the nondisplacement mode N c. vessel towing a submerged object N d. vessel engaged in diving operations 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 4232: BOTH INTERNATIONAL & INLAND The use of the signal consisting of five or more short blasts on the ship's whistle __________.
N a. replaces directional signals N b. makes the other vessel the give-way vessel Y c. indicates doubt as to the other vessel's action N d. makes it necessary to slow or stop 4296: BOTH INTERNATIONAL & INLAND Which power-driven vessel is NOT required to carry a light in the position of the after masthead light?
N a. A pushing vessel and a vessel being pushed, in a composite unit and 100 meters in length N b. A vessel of 60 meters in length towing astern Y c. A vessel of 45 meters in length trolling N d. Any vessel constrained by her draft 4312: BOTH INTERNATIONAL & INLAND A power-driven vessel "not under command" at night must show which lights in a vertical line?
N a. Three red Y b. Two red N c. Two white N d. Three white 4321: BOTH INTERNATIONAL & INLAND While underway in a fog, you hear a whistle signal of one prolonged blast followed by two short blasts. This signal could mean all of the following EXCEPT a vessel __________.
N a. not under command N b. towing astern N c. fishing with trawls Y d. being towed 4322: BOTH INTERNATIONAL & INLAND In which situation do you think a risk of collision exists?
N a. A vessel is 22° 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° abaft your port beam, range increasing, bearing is constant. Y d. A vessel is on your starboard quarter, range decreasing, bearing is constant. 4340: BOTH INTERNATIONAL & INLAND While underway and making way your vessel enters fog. Which fog signal should you sound every two minutes?
Y a. One prolonged blast N b. Two prolonged blasts N c. Three short blasts N d. A prolonged blast and three short blasts 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. 4384: BOTH INTERNATIONAL & INLAND In DIAGRAM 8, vessel "A" and vessel "B" (which is pushing ahead) are meeting head-on as shown. How must the vessels pass? (DIAGRAM 8 )
N a. Vessel "A" must alter course while vessel "B" continues on its present course. N b. The vessels should determine which will alter course by exchanging whistle signals. N c. Both vessels should alter course to port and pass starboard to starboard. Y d. Both vessels should alter course to starboard and pass port to port. 4426: BOTH INTERNATIONAL & INLAND A power-driven vessel is underway in fog but stopped and making no way through the water. What is the required fog signal?
N a. One prolonged blast at not more than one-minute intervals N b. Two prolonged blasts at not more than one-minute intervals N c. One prolonged blast at not more than two-minute intervals Y d. Two prolonged blasts at not more than two-minute intervals 4427: BOTH INTERNATIONAL & INLAND A towing light, according to the Rules, is a __________.
N a. white light N b. red light Y c. yellow light N d. blue light 4437: BOTH INTERNATIONAL & INLAND What is the minimum length of an anchored vessel which is required to show a white light both forward and aft?
Y a. 50 meters N b. 100 meters N c. 150 meters N d. 200 meters 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 4523: BOTH INTERNATIONAL & INLAND A vessel is overtaking when she approaches another from more than how many degrees abaft the beam?
N a. 0.0° N b. 11.25° Y c. 22.5° N d. 45.0° 4530: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning a partly submerged vessel being towed?
N a. It must show a yellow light at each end. N b. It will show red lights along its length. Y c. A diamond shape will be carried at the aftermost extremity of the tow. N d. All of the above 4594: BOTH INTERNATIONAL & INLAND The Rules state that certain factors are to be taken into account when determining safe speed. Those factors include __________.
Y a. state of wind, sea, and current, and the proximity of navigational hazards N b. maximum attainable speed of your vessel N c. temperature N d. aids to navigation that are available 4770: BOTH INTERNATIONAL & INLAND While underway in fog, you hear a vessel ahead sound two prolonged blasts on the whistle. You should __________.
N a. sound two blasts and change course to the left N b. sound whistle signals only if you change course N c. not sound any whistle signals until the other vessel is sighted Y d. sound only fog signals until the other vessel is sighted 5000: BOTH INTERNATIONAL & INLAND While underway in fog, you hear a vessel ahead sound two prolonged blasts on the whistle. You should __________.
Y a. sound only fog signals until the other vessel is sighted N b. not sound any whistle signals until the other vessel is sighted N c. sound two blasts and change course to the left N d. sound whistle signals only if you change course 6560: BOTH INTERNATIONAL & INLAND A vessel using a traffic separation scheme is forbidden to __________.
Y a. proceed through an inappropriate traffic lane N b. engaged in fishing in the separation zone N c. cross a traffic lane N d. enter the separation zone, even in a emergency 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