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.
7: INLAND ONLY When power-driven vessels are crossing, a signal of one short blast by either vessel means __________.
Y a. "I intend to leave you on my port side" N b. "I intend to hold course and speed" N c. "I intend to change course to starboard" N d. "I request a departure from the Rules" 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 212: BOTH INTERNATIONAL & INLAND You see the display of lights shown. This indicates a vessel __________. (DIAGRAM 54 )
Y a. engaged in fishing, making way N b. engaged in fishing, at anchor N c. engaged in trawling, making way N d. on pilotage duty, making way 222: INLAND ONLY A barge more than 50 meters long, at anchor in a "special anchorage area designated by the Secretary", is required to show how many white anchor lights?
N a. 1 N b. 3 N c. None Y d. 2 243: INTERNATIONAL ONLY You are on vessel "A" as shown. Vessel "B" sounds two short blasts. You should __________. (DIAGRAM 32 )
N a. sound two prolonged blasts followed by two short blasts Y b. not answer the whistle signal from vessel "B" N c. sound two short blasts and maintain course and speed N d. sound one prolonged, one short, one prolonged and one short blasts 4110: BOTH INTERNATIONAL & INLAND Continuous sounding of a fog whistle by a vessel is a signal __________.
N a. that the vessel is anchored N b. to request the draw span of a bridge to be opened Y c. of distress N d. that the vessel is broken down and drifting 4129: BOTH INTERNATIONAL & INLAND Which vessel MUST show two masthead lights in a vertical line?
Y a. A power-driven vessel less than 50 meters in length with a 20-meter tow N b. A sailing vessel towing a small vessel astern N c. A vessel not under command N d. A vessel engaged in dredging 4135: BOTH INTERNATIONAL & INLAND A vessel is being propelled both by sail and by engines. Under the Rules, the vessel is __________.
N a. a "special circumstance" vessel N b. not covered under any category N c. a sail vessel Y d. a power-driven vessel 4174: BOTH INTERNATIONAL & INLAND A vessel sounding a fog signal of one short, one prolonged, and one short blast is indicating that the vessel is __________.
N a. fishing N b. in distress Y c. at anchor N d. not under command 4184: BOTH INTERNATIONAL & INLAND You are approaching another vessel at night. You can see both red and green sidelights and, above the level of the sidelights, three white lights in a vertical line. The vessel may be __________.
N a. not under command Y b. towing a tow more than 200 meters astern N c. trawling N d. underway and dredging 4189: BOTH INTERNATIONAL & INLAND You see a vessel displaying the day signal shown. The vessel may be __________. (DIAGRAM 6 )
N a. not under command N b. fishing with trawls Y c. laying cable N d. aground 4201: BOTH INTERNATIONAL & INLAND A power-driven vessel towing astern shall show __________.
N a. two towing lights in a vertical line Y b. a towing light in a vertical line above the stern light N c. two towing lights in addition to the stern light N d. a small white light in lieu of the stern light 4249: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning a vessel equipped with operational radar?
Y a. She must use this equipment to obtain early warning of risk of collision. N b. The use of a radar excuses a vessel from the need of a look-out. N c. The radar equipment is only required to be used in restricted visibility. N d. The safe speed of such a vessel will likely be greater than that of vessels without radar. 4265: BOTH INTERNATIONAL & INLAND While underway and pushing a barge ahead, your vessel enters a heavy rain storm. You should sound __________.
N a. a prolonged blast every two minutes N b. two prolonged blasts every two minutes Y c. one prolonged and two short blasts every two minutes N d. one prolonged and three short blasts every two minutes 4290: BOTH INTERNATIONAL & INLAND While underway in a fog you hear a signal of three strokes of a bell, a rapid ringing of the bell, and three more strokes of the bell. This signal is made by a vessel __________.
N a. at anchor and giving warning Y b. aground N c. at anchor and greater than 100 meters in length N d. not under command and at anchor 4351: BOTH INTERNATIONAL & INLAND Two power-driven vessels are crossing so as to involve risk of collision. Which statement is TRUE, according to the Rules?
N a. The vessel which has the other on her own port side shall keep out of the way. Y b. If the stand-on vessel takes action, she shall avoid changing course to port. N c. If the give-way vessel takes action, she shall avoid changing course to starboard. N d. The give-way vessel should keep the other vessel to her starboard. 4420: BOTH INTERNATIONAL & INLAND A vessel transferring provisions or cargo at sea shall display during the day __________.
N a. two black balls in a vertical line N b. three black balls in a vertical line N c. three shapes in a vertical line; the highest and lowest shall be red balls and the middle a white diamond Y d. three black shapes in a vertical line; the highest and lowest shall be balls and the middle one a diamond 4436: BOTH INTERNATIONAL & INLAND A white masthead light shows through an arc of how many degrees?
N a. 90° N b. 112.5° Y c. 225° N d. 360° 4534: BOTH INTERNATIONAL & INLAND A vessel towing where the tow prevents her from changing course shall carry __________.
N a. only the lights for a vessel towing N b. only the lights for a vessel restricted in her ability to maneuver Y c. the lights for a towing vessel and the lights for a vessel restricted in her ability to maneuver N d. the lights for a towing vessel and the lights for a vessel not under command 4537: BOTH INTERNATIONAL & INLAND Vessel "A" is on course 000°T. Vessel "B" is on a course such that she is involved in a head-on situation and is bearing 355°T, 2 miles away from vessel "A". To ensure a safe passing, vessel "A" should __________.
N a. maintain course N b. alter course to port N c. alter course to ensure a starboard to starboard passing Y d. maneuver to ensure a port to port passing 4584: INTERNATIONAL AND INLAND A vessel that is not equipped with towing lights should show that it has a vessel in tow by_________________.
N a. continuously sounding its horn N b. sounding one prolonged followed by two short blasts at intervals of not more than two minutes Y c. shining a searchlight on the towline of the towed vessel N d. None of the above; a vessel shall not engage in towing at night without proper navigation lights 4596: BOTH INTERNATIONAL & INLAND A vessel displaying the day-shape is __________. (DIAGRAM 13 )
N a. fishing N b. towing N c. being towed Y d. anchored 4641: BOTH INTERNATIONAL & INLAND Which vessel must exhibit forward and after white masthead lights when making way?
Y a. A 75-meter vessel restricted in her ability to maneuver N b. A 100-meter sailing vessel N c. A 150-meter vessel engaged in fishing N d. A 45-meter vessel engaged in towing 4643: BOTH INTERNATIONAL & INLAND A sailing vessel underway at night may show __________.
Y a. a red light over a green light at the masthead N b. a green light over a red light at the masthead N c. two white lights in a vertical line at the stern N d. an all-round white light at the bow 4709: BOTH INTERNATIONAL & INLAND At night, a vessel displaying the lights shown is __________. (DIAGRAM 52 )
N a. aground Y b. underway N c. at anchor N d. transferring dangerous cargo 4736: BOTH INTERNATIONAL & INLAND In restricted visibility a towed vessel must sound a fog signal when it is _____________ .
N a. the last vessel in the tow Y b. the last vessel in the tow and it is carrying a crew N c. manned, regardless of its position in the tow N d. None of the above are correct 4850: BOTH INTERNATIONAL & INLAND The Rules state that risk of collision shall be deemed to exist __________.
N a. whenever two vessels are on opposite courses N b. whenever a vessel crosses ahead of the intended track of another vessel Y c. if the bearing of an approaching vessel does not appreciably change N d. if one vessel approaches another so as to be overtaking 8021: INTERNATIONAL ONLY Your vessel is crossing a narrow channel. A vessel to port is within the channel and crossing your course. She is showing a black cylinder. What is your responsibility?
N a. Hold your course and speed. N b. Sound the danger signal. N c. Begin an exchange of passing signals. Y d. Do not cross the channel if you might impede the other vessel. 8027: INTERNATIONAL ONLY Two prolonged blasts followed by one short blast on the whistle is a signal which could be sounded by a __________.
N a. fishing vessel N b. vessel anchored N c. mineclearing vessel Y d. vessel overtaking another in a narrow channel 8131: INTERNATIONAL ONLY What characteristic must a light have if used to signal passing intentions?
Y a. It must be an all-round white light. N b. It must be an alternating blue and white light. N c. It must be an all-round white or yellow light. N d. It must be an alternating red and yellow light.