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.
50: INLAND ONLY Vessels "A" and "B" are meeting on a river as shown and will pass about 1/4 mile apart. Which statement is TRUE? (DIAGRAM 29 )
N a. Both vessels should continue on course and pass without sounding any whistle signals. N b. The vessels should exchange two blast whistle signals and pass port to port. Y c. The vessels should exchange two blast whistle signals and pass starboard to starboard. N d. The vessels should pass port to port and must sound whistle signals only if either vessel changes course. 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 177: BOTH INTERNATIONAL & INLAND You see the display of lights shown. This could indicate a __________. (DIAGRAM 64 )
N a. dredge working at anchor N b. dredge restricted in its ability to maneuver N c. 55-meter tug towing astern, length of tow exceeds 200 meters Y d. 65-meter tug towing astern, length of tow 150 meters 234: BOTH INTERNATIONAL & INLAND Vessel "A" is overtaking vessel "B" as shown. Which color light will vessel "A" observe on vessel "B"? (DIAGRAM 17 )
N a. Green Y b. White N c. Flashing red N d. Yellow over yellow 270: INLAND ONLY Two power-driven vessels are meeting in a narrow channel as shown. Which statement is TRUE? (DIAGRAM 37 )
N a. Whistle signals must be exchanged in all situations when passing within one half mile of each other. Y b. If agreement is reached by radiotelephone whistle signals are optional. N c. If agreement is reached by radiotelephone whistle signals must still be exchanged. N d. None of the above 322: BOTH INTERNATIONAL & INLAND The vessel whose lights are shown is navigating in a narrow channel. Which statement about this vessel is TRUE? (DIAGRAM 82 )
Y a. It shall not impede the passage of any other vessel navigating within the channel or fairway. N b. It is the stand-on vessel N c. It may anchor in the channel or fairway N d. It shows two balls 397: INTERNATIONAL ONLY Which signal may be sounded ONLY by vessels in restricted visibility?
N a. At least five short and rapid blasts Y b. Four short blasts N c. One prolonged, one short, one prolonged, and one short blast, in that order N d. Two short blasts 4011: BOTH INTERNATIONAL & INLAND A pilot vessel on pilotage duty at night will show sidelights and a stern light __________.
N a. when at anchor N b. only when making way Y c. at any time when underway N d. only when the identifying lights are not being shown 4106: BOTH INTERNATIONAL & INLAND What type of vessel or operation is indicated by a vessel showing two cones with the apexes together?
N a. Sailing vessel Y b. Vessel trawling N c. Mineclearing N d. Dredge 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 4149: BOTH INTERNATIONAL & INLAND A vessel displaying the lights shown is __________. (DIAGRAM 84 )
Y a. not under command N b. showing improper lights N c. towing N d. dredging 4153: BOTH INTERNATIONAL & INLAND A vessel transferring cargo while underway is classified by the Rules as a vessel __________.
N a. not under command N b. in special circumstances Y c. restricted in her ability to maneuver N d. constrained by her draft 4300: BOTH INTERNATIONAL & INLAND At night, a vessel displaying the light shown is __________. (DIAGRAM 46 )
Y a. sailing N b. fishing and making way N c. a pilot boat making way N d. fishing and anchored 4306: BOTH INTERNATIONAL & INLAND Which vessel is directed not to impede the passage of a vessel which can only navigate inside a narrow channel?
Y a. A vessel of less than 20 meters in length N b. A vessel not under command N c. A vessel engaged in surveying N d. All of the above 4333: BOTH INTERNATIONAL & INLAND The arc of visibility for sidelights is from right ahead to __________.
Y a. 22.5° abaft the beam N b. abeam N c. 22.5° forward of the beam N d. 135° abaft the beam 4343: BOTH INTERNATIONAL & INLAND Risk of collision may exist __________.
N a. if the compass bearing of an approaching vessel does NOT appreciably change N b. even when an appreciable bearing change is evident, particularly when approaching a vessel at close range N c. if you observe both sidelights of a vessel ahead for an extended period of time Y d. All of the above 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 4463: BOTH INTERNATIONAL & INLAND You are underway on vessel "B" approaching vessel "A", as shown. You are unable to see any sidelights on vessel "A". This is a(n) __________. (DIAGRAM 38 )
N a. meeting situation N b. crossing situation Y c. overtaking situation N d. special circumstances situation 4466: BOTH INTERNATIONAL & INLAND Which lights shall a 200-meter vessel exhibit when at anchor?
N a. In the forepart of the vessel, a 225-degree white light N b. In the after part of the vessel, a 112.5-degree white light Y c. Working lights to illuminate the decks N d. In the forepart of the vessel, a 112.5-degree white light 4469: BOTH INTERNATIONAL & INLAND A pilot vessel may continue to sound an identity signal in fog if she is __________.
N a. aground Y b. at anchor N c. not under command N d. no longer on pilotage duty 4491: BOTH INTERNATIONAL & INLAND Barges being towed at night __________.
Y a. must be lighted at all times N b. must be lighted only if manned N c. must be lighted only if towed astern N d. need not be lighted 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 4591: BOTH INTERNATIONAL & INLAND A vessel using a traffic separation scheme shall __________.
N a. only anchor in the separation zone N b. cross a traffic lane at as small an angle as possible Y c. avoid anchoring in areas near the termination of the scheme N d. utilize the separation zone for navigating through the scheme if she is impeding other traffic due to her slower speed 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 4616: BOTH INTERNATIONAL & INLAND If your vessel is the stand-on vessel in a crossing situation __________.
Y a. you must keep your course and speed N b. you may change course and speed as the other vessel must keep clear N c. the other vessel must keep her course and speed N d. both vessels must keep their course and speed 4623: BOTH INTERNATIONAL & INLAND A towing vessel 35 meters in length, with a tow 100 meters astern, must show a minimum of how many masthead lights?
N a. 1 Y b. 2 N c. 3 N d. 4 4644: BOTH INTERNATIONAL & INLAND A vessel engaged in trawling will show identification lights of __________.
N a. a red light over a white light N b. a white light over a red light Y c. a green light over a white light N d. two red lights in a vertical line 4654: BOTH INTERNATIONAL & INLAND A vessel engaged in fishing shall keep out of the way of a vessel __________.
N a. under sail Y b. restricted in her ability to maneuver N c. crossing a channel N d. All of the above 4689: BOTH INTERNATIONAL & INLAND Which vessel sounds the same fog signal when underway or at anchor?
N a. A sailing vessel N b. A vessel constrained by her draft Y c. A vessel restricted in her ability to maneuver N d. A vessel not under command 8098: INTERNATIONAL ONLY If at night a vessel displays three all-round red lights in a vertical line, during the day she may show __________.
N a. two cones, base to base N b. three black balls in a vertical line Y c. a cylinder N d. a cone, apex downward