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.
85: INLAND ONLY A power-driven vessel crossing a river on the Great Lakes or Western Rivers, must keep out of the way of a power-driven vessel __________.
N a. descending the river with a tow N b. ascending the river with a tow N c. ascending the river without a tow Y d. All of the above 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 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 158: BOTH INTERNATIONAL & INLAND The lights shown are exhibited by a vessel __________. (DIAGRAM 49 )
N a. dredging while underway Y b. not under command N c. engaged in trawling N d. engaged in mineclearance 230: BOTH INTERNATIONAL & INLAND Vessel "A" is overtaking vessel "B" as shown. Vessel "B" is the __________. (DIAGRAM 17 )
Y a. stand-on vessel N b. give-way vessel N c. burdened vessel N d. None of the above 289: BOTH INTERNATIONAL & INLAND The tow shown is less than 200 meters in length and severely restricted in her ability to deviate from her course. Which dayshape(s) would be displayed by day from the vessel? (DIAGRAM 24 )
Y a. ball-diamond-ball on the towing vessel N b. diamond on the towing vessel N c. diamond on the last barge N d. None of the above 324: BOTH INTERNATIONAL & INLAND Which diagram shows the arc of visibility of a green sidelight? (DIAGRAM 23 )
N a. A Y b. B N c. C N d. D 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 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 4070: BOTH INTERNATIONAL & INLAND You are underway and hear a vessel continuously sounding her fog whistle. This indicates the other vessel __________.
N a. desires to communicate by radio N b. desires a pilot Y c. is in distress N d. is aground 4150: BOTH INTERNATIONAL & INLAND A towing vessel 30 meters in length is pushing barges ahead. How many white masthead lights is the vessel REQUIRED to show at night?
N a. One Y b. Two N c. Three N d. Four 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 4188: BOTH INTERNATIONAL & INLAND You are at anchor in fog on a 120-meter power-driven vessel. You hear the fog signal of a vessel approaching off your port bow. You may sound __________.
N a. one prolonged, one short and one prolonged N b. two short blasts Y c. one short, one prolonged, and one short blast N d. one prolonged blast 4245: BOTH INTERNATIONAL & INLAND Underway at night, a vessel displaying the lights shown is __________. (DIAGRAM 62 )
N a. engaged in fishing N b. mine sweeping N c. a pilot boat Y d. under sail 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 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. 4441: BOTH INTERNATIONAL & INLAND At night, power-driven vessels less than 12 meters in length may, instead of the underway lights for vessels under 50 meters, show which lights?
N a. Sidelights and stern light Y b. One all-round white light and sidelights N c. Masthead light only N d. Stern light only 4547: BOTH INTERNATIONAL & INLAND What is the minimum sound signaling equipment required aboard a vessel 10 meters in length?
N a. A bell only N b. A whistle only N c. A bell and a whistle Y d. Any means of making an efficient sound signal 4547: BOTH INTERNATIONAL & INLAND What is the minimum sound signaling equipment required aboard a vessel 10 meters in length?
N a. A bell only N b. A whistle only N c. A bell and a whistle Y d. Any means of making an efficient sound signal 4595: BOTH INTERNATIONAL & INLAND Which vessel, when anchored at night, would NOT be required to show anchor lights?
N a. A power-driven vessel N b. A vessel on pilotage duty Y c. A vessel dredging N d. A vessel restricted in her ability to maneuver 4612: BOTH INTERNATIONAL & INLAND An all-round flashing yellow light may be exhibited by a(n) __________.
N a. vessel laying cable N b. vessel towing a submerged object N c. vessel not under command Y d. air cushion vessel 4645: BOTH INTERNATIONAL & INLAND What is required of a vessel navigating near an area of restricted visibility?
N a. A power-driven vessel shall have her engines ready for immediate maneuver. N b. She must sound appropriate sound signals. N c. If she detects another vessel by radar, she shall determine if risk of collision exists. Y d. All of the above 4662: BOTH INTERNATIONAL & INLAND Vessel "A" (towing) and vessel "B" are meeting as shown. In this situation, which statement is TRUE? (DIAGRAM 12 )
Y a. Both vessels should alter course to starboard and pass port to port. N b. Both vessels should alter course to port and pass starboard to starboard. N c. Vessel "A" should hold course while vessel "B" alters course to starboard. N d. Vessel "A" is the stand-on in this situation. 4667: BOTH INTERNATIONAL & INLAND While underway and in sight of another vessel, less than one half mile away, you put your engines on astern propulsion. Which statement concerning whistle signals is TRUE?
N a. You need not sound any whistle signals. N b. You must sound one blast if backing to starboard. N c. You must sound whistle signals only if the vessels are meeting. Y d. You must sound three short blasts on the whistle. 4685: BOTH INTERNATIONAL & INLAND What does the word "breadth" mean?
Y a. Greatest breadth N b. Molded breadth N c. Breadth on the main deck N d. Breadth at the load waterline 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 4733: BOTH INTERNATIONAL & INLAND A distress signal __________.
N a. consists of 5 or more short blasts of the fog signal apparatus N b. consists of the raising and lowering of a large white flag Y c. may be used separately or with other distress signals N d. is used to indicate doubt about another vessel's intentions 6500: BOTH INTERNATIONAL & INLAND A towing vessel and her tow are severely restricted in their ability to change course. When making way, the towing vessel will show ONLY __________.
N a. the masthead lights for a towing vessel N b. the lights for a vessel restricted in her ability to maneuver N c. sidelights, stern light, and towing light Y d. All of the above. 8060: INTERNATIONAL ONLY You are operating a vessel in a narrow channel. Your vessel must stay within the channel to be navigated safely. Another vessel is crossing your course from starboard to port, and you are in doubt as to his intentions. According to Rule 9, you __________.
Y a. may sound the danger signal N b. must sound one prolonged and two short blasts N c. should sound one short blast to indicate that you are holding course and speed N d. are required to back down 8074: INTERNATIONAL ONLY Two prolonged blasts followed by one short blast on the whistle is a signal which would be sounded by a vessel __________.
Y a. overtaking another in a narrow channel N b. anchored N c. engaged in mineclearance N d. engaged in fishing