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.
20: INLAND ONLY Your vessel is proceeding down a channel, and can safely navigate only within the channel. Another vessel is crossing your bow from port to starboard, and you are in doubt as to her intentions. Which statement is TRUE?
N a. The sounding of the danger signal is optional. Y b. The sounding of the danger signal is mandatory. N c. You should sound two short blasts. N d. You should sound one prolonged and two short blasts. 33: INLAND ONLY For the purpose of the Inland Navigation Rules, the term "inland waters" includes __________.
Y a. the Great Lakes on the United States side of the International Boundary N b. the water surrounding any islands of the United States N c. the coastline of the United States, out to one mile offshore N d. any lakes within state boundaries 55: INLAND ONLY The lights shown are those of a __________. (DIAGRAM 75 )
N a. pipeline Y b. vessel pushing ahead N c. vessel being towed astern N d. vessel underway and dredging 174: BOTH INTERNATIONAL & INLAND You see the display of lights shown. They could indicate a vessel __________. (DIAGRAM 71 )
N a. under sail and power N b. dredging while underway N c. fishing with nets extending more than 150 meters Y d. power-driven and approaching head-on 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 314: INLAND ONLY Identify the operation indicated by the lights shown. (DIAGRAM 85 )
N a. An aircraft carrier engaged in the launching and recovery of aircraft N b. A submarine engaged in underway replenishment at sea Y c. A dredge engaged in dredging operations N d. A vessel aground assisted by tugs 327: BOTH INTERNATIONAL & INLAND Diagram "A" shows the arc of visibility of a __________. (DIAGRAM 23 )
N a. white masthead light N b. green sidelight Y c. red sidelight N d. stern light 379: BOTH INTERNATIONAL & INLAND A seagoing tug has a tow greater than 200 meters as shown and is severely restricted in her ability to deviate from her course. Which lights would be displayed from the towing vessel? (DIAGRAM 24 )
Y a. Three white masthead lights, red-white-red all-round lights, sidelights, stern light and a towing light N b. Three white masthead lights, red-white-red all-round lights, sidelights and two towing lights N c. Three white masthead lights, two all-round red lights, sidelights, stern light and a towing light N d. None of the above 402: BOTH INTERNATIONAL & INLAND While underway in fog, you hear a prolonged blast from another vessel. This signal indicates a __________.
N a. sailboat making way N b. power-driven vessel making way, towing Y c. power-driven vessel making way N d. vessel being towed 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 4034: BOTH INTERNATIONAL & INLAND A vessel "restricted in her ability to maneuver" is one which __________.
Y a. from the nature of her work is unable to maneuver as required by the rules N b. through some exceptional circumstance is unable to maneuver as required by the rules N c. due to adverse weather conditions is unable to maneuver as required by the rules N d. has lost steering and is unable to maneuver 4134: BOTH INTERNATIONAL & INLAND Vessel "A" is overtaking vessel "B" as shown. Which vessel is the stand-on vessel? (DIAGRAM 9 )
N a. Vessel "A" Y b. Vessel "B" N c. Neither vessel N d. Both vessels must keep clear of the other. 4181: BOTH INTERNATIONAL & INLAND According to the Rules, which vessel is NOT "restricted in her ability to maneuver"?
N a. A vessel servicing a navigation marker Y b. A sailing vessel N c. A vessel mineclearing N d. A vessel dredging 4259: BOTH INTERNATIONAL & INLAND What is the optional whistle signal which may be sounded by a vessel at anchor?
N a. Two prolonged followed by one short blast N b. One short followed by two prolonged blasts Y c. One short, one prolonged, followed by one short blast N d. Four short blasts 4338: BOTH INTERNATIONAL & INLAND A vessel hearing a fog signal forward of her beam has not determined if risk of collision exists. She shall reduce speed to __________.
N a. moderate speed N b. safe speed N c. half speed Y d. bare steerageway 4417: BOTH INTERNATIONAL & INLAND What describes a head-on situation?
N a. Seeing a vessel displaying both sidelights ONLY dead ahead N b. Seeing two forward white towing identification lights in a vertical line on a towing vessel directly ahead N c. Seeing both sidelights of a vessel directly off your starboard beam Y d. Seeing both sidelights and masthead light(s) of a vessel dead ahead 4455: BOTH INTERNATIONAL & INLAND Which vessel is "underway" within the meaning of the Rules?
N a. A vessel at anchor with the engine turning N b. A vessel tied to an offshore mooring buoy N c. A vessel aground with the engine turning Y d. A vessel drifting with the engine stopped 4456: BOTH INTERNATIONAL & INLAND What is the required fog signal for a manned vessel being towed at night?
N a. One prolonged followed by one short blast Y b. One prolonged followed by three short blasts N c. One prolonged followed by two short blasts N d. Two prolonged blasts 4538: BOTH INTERNATIONAL & INLAND What is a vessel "restricted in her ability to maneuver"?
N a. A vessel not under command N b. A vessel constrained by her draft N c. A vessel underway in fog Y d. A vessel towing unable to deviate from her course 4548: BOTH INTERNATIONAL & INLAND Which statement is TRUE regarding equipment for sound signals?
N a. A vessel of less than 12 meters in length need not have any sound signaling equipment. N b. Any vessel over 12 meters in length must be provided with a gong. Y c. Manual sounding of the bell and gong must always be possible. N d. Automatic sounding of the signals is not permitted. 4556: BOTH INTERNATIONAL & INLAND Day-shapes MUST be shown __________.
Y a. during daylight hours N b. during daylight hours except in restricted visibility N c. ONLY between 8 AM and 4 PM daily N d. between sunset and sunrise 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 4669: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning the light used with whistle signals?
N a. Use of such a light is required. Y b. Its purpose is to supplement short blasts of the whistle. N c. The light shall have the same characteristics as a masthead light. N d. All of the above 4720: BOTH INTERNATIONAL & INLAND A vessel displaying the lights shown could be a vessel __________. (DIAGRAM 56 )
N a. towing a barge alongside N b. at anchor and dredging Y c. underway and engaged in surveying operations N d. not under command and making way 4729: BOTH INTERNATIONAL & INLAND Which statement is TRUE, according to the Rules?
N a. A vessel engaged in fishing shall keep out of the way of a sailing vessel. Y b. A vessel engaged in fishing while underway shall, so far as possible, keep out of the way of a vessel restricted in her ability to maneuver. N c. A vessel not under command shall keep out of the way of a vessel restricted in her ability to maneuver. N d. A vessel not under command shall keep out of the way of a vessel engaged in fishing. 4738: 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 Y b. five short and rapid blasts N c. no signal and maneuver at will N d. two short blasts, alter to port, and pass astern 4848: BOTH INTERNATIONAL & INLAND The Rules state that certain factors are to be taken into account when determining safe speed. One of the factors is the __________.
N a. radio communications that are available N b. maximum speed of your vessel N c. temperature Y d. current 4852: BOTH INTERNATIONAL & INLAND What is TRUE when operating in fog and other vessels are detected by radar?
N a. You should make an ample change to port for a vessel crossing on the starboard bow. Y b. You should maneuver in ample time if a close-quarters situation is developing. N c. You should determine the course and speed of all radar contacts at six minute intervals. N d. Long-range scanning will provide early warning of ALL other vessels within the radar's range. 5400: BOTH INTERNATIONAL & INLAND A vessel using a traffic separation scheme shall NOT __________.
N a. cross a traffic lane N b. engage in fishing the separation zone Y c. proceed in an inappropriate traffic lane N d. enter the separation zone 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."