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.
56: INLAND ONLY Your vessel must remain in a narrow channel for safe operation. Another vessel is crossing the channel from your starboard. You do not think she will pass safely. You MUST __________.
N a. stop your vessel, since the other vessel has the right of way N b. sound one short blast of the whistle, and turn to starboard Y c. sound the danger signal N d. stop your engines, and you may sound the danger signal 109: BOTH INTERNATIONAL & INLAND Vessel "A" is overtaking vessel "B" as shown. Vessel "B" is an air-cushion vessel operating in the nondisplacement mode. In addition to a steady white light which other light will vessel "A" observe on vessel "B"? (DIAGRAM 17 )
N a. Steady green light N b. Flashing red light Y c. Flashing yellow light N d. Flashing white light 153: BOTH INTERNATIONAL & INLAND You are underway at night and you sight the lights shown. You know these lights indicate a __________. (DIAGRAM 47 )
N a. fishing vessel engaged in fishing N b. trawler dragging nets Y c. sailing vessel N d. dredge at work 204: INTERNATIONAL ONLY Vessels "A" and "B" are in a crossing situation on the high seas as shown. Vessel "B" sounds one short blast. What is the proper action for vessel "A" to take? (DIAGRAM 14 )
N a. Answer with one blast and hold course and speed Y b. Hold course and speed N c. Answer with one blast and keep clear of vessel "B" N d. Sound danger signal 250: INLAND ONLY You are on a power-driven vessel "I" as shown. Vessel "II" is a power-driven vessel engaged in fishing that will pass within 1/2 a mile of your vessel. You sound one short blast on the whistle. Vessel "II" does not sound any signal. Which action should you take? (DIAGRAM 36 )
N a. Hold course and speed without giving a signal. Y b. Sound the danger signal and reduce speed. N c. Sound one short blast, reduce speed and turn to starboard. N d. Sound two short blasts and change course to port. 319: BOTH INTERNATIONAL & INLAND Which dayshape(s) would be displayed by the vessel engaged in the operation indicated by the lights shown. (DIAGRAM 82 )
N a. a cylinder Y b. two cones with apexes together N c. a ball, a diamond and another ball N d. a diamond 330: BOTH INTERNATIONAL & INLAND Diagram "B" shows the arc of visibility of a __________. (DIAGRAM 23 )
N a. white masthead light Y b. green sidelight N c. red sidelight N d. stern light 333: BOTH INTERNATIONAL & INLAND Diagram "B" shows the arc of visibility of a __________. (DIAGRAM 23 )
N a. yellow flashing light N b. red sidelight Y c. green sidelight N d. stern light 346: 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 overtake you on my port side" N b. "I am operating astern propulsion" N c. "I intend to leave you on my starboard side" Y d. None of the above 359: BOTH INTERNATIONAL & INLAND Two power-driven vessels are crossing as shown. Vessel "A" sounds one short blast on the whistle. You are on vessel "B" and doubt that sufficient action is being taken by vessel "A" to avoid collision. You should __________. (DIAGRAM 42 )
N a. maintain course and speed N b. alter course to the left and increase speed N c. sound one short blast and maintain course and speed Y d. None of the above 4000: BOTH INTERNATIONAL & INLAND Your vessel is 75 meters in length and restricted in her ability to maneuver. Visibility is restricted. What signal do you sound if you are carrying out your work at anchor?
N a. Five seconds ringing of a bell at intervals of not more than one minute Y b. One prolonged blast followed by two short blasts on the whistle at intervals of not more than two minutes N c. Five seconds ringing of a bell and five second sounding of a gong at intervals of not more than one minute N d. Four short blasts on the whistle at intervals of not more than two minutes 4093: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning two sailing vessels?
Y a. A sailing vessel with the wind forward of the beam on her port side shall keep out of the way of a sailing vessel with the wind forward of the beam on the starboard side. N b. When both vessels have the wind on the same side, the vessel to leeward shall keep out of the way. N c. A sail vessel with the wind abaft of the beam must keep out of the way of a vessel sailing into the wind. N d. None of the above 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 4166: BOTH INTERNATIONAL & INLAND A power-driven vessel towing another vessel astern (tow less than 200 meters) shall show __________.
N a. three masthead lights in a vertical line instead of either the forward or after masthead light Y b. two masthead lights in a vertical line instead of either the forward or after masthead lights N c. two towing lights in a vertical line at the stern N d. a small white light aft of the funnel 4169: BOTH INTERNATIONAL & INLAND A "head on" situation shall be deemed to exist at night when a power-driven vessel sees another power-driven vessel ahead and __________.
N a. one sidelight and the masthead light are visible N b. the vessels will pass closer than half a mile N c. both vessels sound one prolonged blast Y d. both sidelights and masthead light(s) are visible 4178: BOTH INTERNATIONAL & INLAND You are underway in fog and you hear one prolonged blast followed by two short blasts. This is a vessel __________.
Y a. towing N b. engaged on pilotage duty N c. aground in a fairway N d. stopped and making no way through the water 4199: BOTH INTERNATIONAL & INLAND A vessel which is fishing must show sidelights and a stern light only when __________.
N a. anchored N b. underway N c. dead in the water Y d. underway and making way 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 4230: BOTH INTERNATIONAL & INLAND In restricted visibility, a vessel restricted in her ability to maneuver, at anchor, would sound a fog signal of __________.
N a. the rapid ringing of a bell for five seconds every minute N b. two prolonged and two short blasts every two minutes Y c. one prolonged and two short blasts every two minutes N d. two prolonged and one short blast every two minutes 4330: BOTH INTERNATIONAL & INLAND While underway in fog, you hear a short blast, a prolonged blast, and a short blast of a whistle. This signal indicates a __________.
N a. vessel towing in fog N b. sailboat underway in fog N c. vessel being towed in fog Y d. vessel anchored in fog 4381: BOTH INTERNATIONAL & INLAND A vessel that is defined as "restricted in her ability to maneuver" is unable to keep out of the way of another vessel due to __________.
N a. her draft Y b. the nature of her work N c. some exceptional circumstances N d. a danger of navigation 4409: BOTH INTERNATIONAL & INLAND A vessel or object being towed astern shall display a(n) __________.
N a. forward masthead light N b. after masthead light Y c. stern light N d. All of the above 4517: BOTH INTERNATIONAL & INLAND Which vessel must exhibit forward and after masthead lights when underway?
N a. A 200-meter sailing vessel Y b. A 50-meter power-driven vessel N c. A 100-meter vessel engaged in fishing N d. All of the above 4520: BOTH INTERNATIONAL & INLAND When anchoring a 20-meter vessel at night, you must show __________.
Y a. one all-round white light N b. two all-round white lights N c. one all-round white light and the stern light N d. one all-round white light and a flare up light 4572: BOTH INTERNATIONAL & INLAND You are underway in low visibility and sounding fog signals. What changes would you make in the fog signal immediately upon losing propulsion?
N a. Begin sounding two prolonged blasts at two-minute intervals. N b. Begin sounding one prolonged blast followed by three short blasts at two-minute intervals. Y c. Begin sounding one prolonged blast followed by two short blasts at two-minute intervals. N d. No change should be made in the fog signal. 4629: BOTH INTERNATIONAL & INLAND For a stand-on vessel to take action to avoid collision she shall, if possible, NOT __________.
N a. decrease speed N b. increase speed Y c. turn to port for a vessel on her port side N d. turn to starboard for a vessel on her port side 4724: BOTH INTERNATIONAL & INLAND At night, a vessel displaying the lights shown is __________. (DIAGRAM 65 )
N a. trawling N b. not under command Y c. anchored N d. drifting 4844: BOTH INTERNATIONAL & INLAND What does the word "breadth" mean in the Rules?
N a. Breadth on the uppermost continuous deck N b. Molded breadth Y c. Greatest breadth N d. Breadth at the load waterline 5150: BOTH INTERNATIONAL & INLAND There are two classes of vessels which do not have to comply with the rule regarding traffic separation schemes, to the extent necessary to carry out their work. One of those is a vessel __________.
N a. engaged in fishing N b. towing another Y c. servicing a navigational aid N d. on pilotage duty 8063: INTERNATIONAL ONLY On open water two vessels are in an overtaking situation. The overtaking vessel has just sounded one short blast on the whistle. What is the meaning of this whistle signal?
N a. "I request permission to pass you on my port side." N b. "I will maintain course and speed and pass you on your starboard side." N c. "On which side should I pass?" Y d. "I am changing course to starboard."