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.
64: INLAND ONLY At night, which lights are required on barges moored in a group formation more than two barges wide?
Y a. Two unobstructed all-round white lights N b. All-round white lights placed at the corners of each barge in the group N c. Two unobstructed all-round yellow lights N d. Two red lights in a vertical line at the corner extremities of the group 90: INLAND ONLY Two vessels are in a starboard to starboard meeting situation and will pass well clear approximately 1/4 mile apart. Which action should each vessel take?
N a. Sound a one blast whistle signal and turn to starboard. N b. Maintain course and sound no signal. Y c. Sound a two blast whistle signal and maintain course. N d. Sound a three blast whistle signal and turn to port. 93: INLAND ONLY While underway in a harbor you hear a vessel sound a prolonged blast. This signal indicates that this vessel __________.
N a. desires to overtake your vessel N b. is at anchor N c. is backing her engines Y d. is moving from a dock 107: INLAND ONLY A power-driven vessel intends to overtake another power-driven vessel on the overtaken vessel's port side. What whistle signal should be sounded in order to state this intention?
N a. 1 prolonged and 1 short blast N b. 1 short blast N c. 2 prolonged and 2 short blasts Y d. 2 short blasts 116: BOTH INTERNATIONAL & INLAND You are on a 30-meter fishing vessel. Which day shape must you show while engaged in fishing? (DIAGRAM 16 )
N a. A N b. B Y c. C N d. D 219: INLAND ONLY You are proceeding up a channel in Chesapeake Bay and are meeting an outbound vessel. There is no current. You MUST __________.
N a. keep to that side of the channel which is on your vessel's port side N b. stop your vessel, letting the outbound vessel sound the signals for meeting and passing Y c. propose or answer one- or two-blast whistle signals given by the other vessel if passing within 1/2 mile N d. give the outbound vessel the right-of-way 268: INLAND ONLY Two power-driven vessels are meeting in the situation as shown and will pass within 1/2 mile of each other. Two short blasts from either vessel means __________. (DIAGRAM 37 )
Y a. "I intend to leave you on my starboard side." N b. "I intend to leave you on my port side." N c. "I am altering my course to port." N d. "I am altering my course to starboard." 273: INLAND ONLY While underway you sight the lights shown with the yellow lights flashing, you should __________. (DIAGRAM 81 )
N a. wait until the vessel ahead crosses your bow N b. stop until the red lights turn green N c. proceed leaving all the lights on your starboard side Y d. pass between the two sets of vertical red lights 301: BOTH INTERNATIONAL & INLAND A vessel displaying the lights shown is a vessel __________. (DIAGRAM 79 )
N a. engaged in submarine operations N b. dredging N c. engaged in fishing Y d. towing astern 318: BOTH INTERNATIONAL & INLAND Which dayshape(s) would be displayed by the vessel engaged in the operation indicated by the lights shown. (DIAGRAM 82 )
Y a. two cones with apexes together N b. a ball, a diamond and another ball N c. a cylinder N d. a diamond 329: BOTH INTERNATIONAL & INLAND Diagram "C" shows the arc of visibility of a __________. (DIAGRAM 23 )
N a. white masthead light N b. red sidelight N c. stern light Y d. None of the above 352: INLAND ONLY A commercial vessel engaged in public safety activities may display a(n) __________.
N a. flashing blue light Y b. alternately flashing red and yellow light N c. flashing yellow light N d. alternately flashing blue and red light 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 355: 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 )
Y a. "I am altering my course to starboard" N b. "I intend to leave you on my port side" N c. "I am altering my course to port" N d. None of the above 4111: BOTH INTERNATIONAL & INLAND A 50-meter vessel is towing astern and the length of the tow is 100 meters. In addition to sidelights, which lights may she show to fully comply with the Rules?
N a. Two masthead lights forward, a stern light, and a towing light above the stern light Y b. A masthead light forward, two masthead lights aft, a stern light, and a towing light above the stern light N c. No masthead light forward, two masthead lights aft, a stern light, and a towing light above the stern light N d. Three masthead lights forward, one masthead light aft, and two towing lights in a vertical line at the stern 4212: BOTH INTERNATIONAL & INLAND While underway your vessel approaches a bend in a river where, due to the bank, you cannot see around the bend. You should __________.
N a. keep to the starboard side of the channel and sound one short blast N b. sound the danger signal Y c. sound one prolonged blast N d. slow your vessel to bare steerageway 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 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 4272: BOTH INTERNATIONAL & INLAND A power-driven vessel, when towing another vessel astern shall show the light(s) in Diagram __________. (DIAGRAMS 46, 54, 60 )
N a. 75 Y b. 60 N c. 54 N d. 46 4276: BOTH INTERNATIONAL & INLAND While underway your vessel enters fog. You stop your engines and the vessel is dead in the water. Which fog signal should you sound?
N a. One prolonged blast every two minutes Y b. Two prolonged blasts every two minutes N c. Three short blasts every two minutes N d. One prolonged and three short blasts every two minutes 4280: BOTH INTERNATIONAL & INLAND Vessels I and II are underway as shown. Vessel I is a sailing vessel with the wind dead aft. Vessel II is a power-driven vessel trawling. Which statement is TRUE? (DIAGRAM 33 )
Y a. Vessel I is to keep clear because the other vessel is fishing. N b. Vessel II is to keep clear because she is a power-driven vessel. N c. Vessel II is to keep clear because the other vessel is to its starboard. N d. Both vessels are to take action to stay clear of each other. 4292: BOTH INTERNATIONAL & INLAND While underway in fog, you hear a signal of one prolonged blast followed by three short blasts. This is the fog signal for a vessel __________.
N a. towing Y b. being towed (manned) N c. under sail N d. at anchor 4358: BOTH INTERNATIONAL & INLAND Which vessel should not impede the navigation of a power-driven vessel?
N a. A vessel not under command N b. A vessel engaged in fishing N c. A sailing vessel Y d. A seaplane 4372: BOTH INTERNATIONAL & INLAND You are the stand-on vessel in a crossing situation. If you think the give-way vessel is NOT taking sufficient action to avoid collision, you should sound __________.
N a. one short blast and maintain course N b. two short blasts, alter to port, and pass astern N c. no signal and maneuver at will Y d. the danger signal 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 4706: BOTH INTERNATIONAL & INLAND A "flashing light" is a light that __________.
Y a. flashes at regular intervals at a frequency of 120 flashes or more per minute N b. is yellow in color N c. is visible over an arc of the horizon of not less than 180° nor more than 225° N d. All of the above 8056: INTERNATIONAL ONLY A whistle signal of one prolonged, one short, one prolonged and one short blast, is sounded by a vessel __________.
N a. at anchor N b. towing a submerged object Y c. being overtaken in a narrow channel N d. in distress 8075: 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. Two short blasts followed by two prolonged blasts Y b. Two prolonged followed by two short blasts N c. Two prolonged blasts only N d. Two short blasts only 8118: INTERNATIONAL ONLY A signal of intent must be sounded in international waters by __________.
N a. a vessel meeting another head-on Y b. a vessel overtaking another in a narrow channel N c. a vessel crossing the course of another N d. the give-way vessel in a crossing situation 8120: INTERNATIONAL ONLY A light used to signal passing intentions must be an __________.
N a. all-round yellow light only Y b. all-round white light only N c. all-round blue light only N d. alternating red and yellow light