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.
25: INLAND ONLY In a narrow channel, a power-driven vessel desiring to overtake another power-driven vessel on the other vessel's starboard side will sound a whistle signal of __________.
Y a. one short blast N b. two short blasts N c. two prolonged blasts followed by one short blast N d. two prolonged blasts followed by two short blasts 62: INLAND ONLY Which is TRUE of a vessel downbound with a following current when meeting an upbound vessel on the Western Rivers?
Y a. She has the right-of-way only if she is a power-driven vessel. N b. She has the right-of-way only if she has a tow. N c. She does not have the right-of-way, since the other vessel is not crossing the river. N d. She must wait for a whistle signal from the upbound vessel. 171: BOTH INTERNATIONAL & INLAND You are on a vessel and see ahead the lights shown. They indicate a __________. (DIAGRAM 59 )
N a. vessel being overtaken N b. vessel meeting head-on N c. vessel crossing from your starboard Y d. vessel crossing from your port 172: BOTH INTERNATIONAL & INLAND You are on watch and sight a vessel showing only these lights. They indicate a __________. (DIAGRAM 59 )
N a. sailing vessel N b. vessel engage in trawling Y c. power-driven vessel N d. mineclearance vessel 189: BOTH INTERNATIONAL & INLAND You are on vessel "A" towing a barge alongside and meeting vessel "B" as shown. Which action should you take? (DIAGRAM 39 )
N a. Alter course to port Y b. Alter course to starboard N c. Back down to reduce the strain on the lines N d. Maintain course and speed 226: INLAND ONLY While underway and in sight of another vessel a mile ahead you put your engines on astern propulsion. Which statement concerning whistle signals is TRUE?
N a. You must sound three short blasts on the whistle. 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 need not sound any whistle signals. 232: BOTH INTERNATIONAL & INLAND Vessel "A" is overtaking vessel "B" as shown. Vessel "B" __________. (DIAGRAM 17 )
N a. should change course to the right N b. should slow down until vessel "A" has passed Y c. should hold her course and speed N d. may steer various courses and vessel "A" must keep clear 339: 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. Vessel "B" should sound __________. (DIAGRAM 42 )
N a. one prolonged, one short, one prolonged and one short blasts N b. two short blasts Y c. one short blast N d. None of the above 4072: BOTH INTERNATIONAL & INLAND A 30-meter tug is underway and NOT towing. At night, this vessel must show sidelights and __________.
Y a. one masthead light and a stern light N b. two masthead lights and a stern light N c. three masthead lights and a stern light N d. a stern light ONLY 4216: BOTH INTERNATIONAL & INLAND You are approaching a narrow channel. You see a vessel that can only be navigated safely within the channel. You should __________.
N a. initiate an exchange of passing signals Y b. not cross the channel if you might impede the other vessel N c. sound the danger signal N d. hold your course and speed 4299: BOTH INTERNATIONAL & INLAND You are crossing a narrow channel on your 15-meter vessel. A deeply loaded cargo vessel is proceeding down the channel as shown. In this situation, which statement is correct? (DIAGRAM 40 )
N a. You are the stand-on vessel because you are less than 65 feet in length. Y b. You cannot impede the passage of the cargo vessel. N c. The cargo vessel is the stand-on vessel because she is running with the current. N d. The Rule of Special Circumstances applies in this case. 4323: BOTH INTERNATIONAL & INLAND A vessel displaying ONLY the lights shown is a __________. (DIAGRAM 53 )
Y a. vessel engaged on pilotage duty underway N b. vessel engaged in fishing N c. vessel under sail N d. power-driven vessel underway 4404: BOTH INTERNATIONAL & INLAND A vessel towing astern in an operation which severely restricts the towing vessel and her tow in their ability to change course shall, when making way, exhibit __________.
N a. the masthead lights for a towing vessel N b. the lights for a vessel restricted in its ability to maneuver N c. sidelights, stern light and towing light Y d. All of the above 4412: BOTH INTERNATIONAL & INLAND A vessel displaying the lights shown is __________. (DIAGRAM 44 )
N a. towing N b. conducting underwater survey operations N c. drifting Y d. aground 4467: BOTH INTERNATIONAL & INLAND Under the Rules, the term "vessel" includes __________.
N a. non-self-propelled raft N b. seaplanes N c. hovercrafts Y d. All of the above 4479: BOTH INTERNATIONAL & INLAND What signal indicates doubt that sufficient action is being taken by another vessel to avoid collision?
Y a. Five short and rapid blasts of the whistle N b. Three long blasts of the whistle N c. Three short and rapid blasts of the whistle N d. One prolonged blast followed by three short blasts of the whistle 4489: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning a vessel of 150 meters in length, at anchor?
N a. She may show an all-round white light where it can best be seen. Y b. She must show all-round white lights forward and aft. N c. The showing of working lights is optional. N d. None of the above 4540: BOTH INTERNATIONAL & INLAND The lights shown are those of a __________. (DIAGRAM 58 )
N a. vessel being towed Y b. power-driven vessel of less than 50 meters in length N c. fishing vessel at anchor N d. sailboat 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 4660: BOTH INTERNATIONAL & INLAND In fog you observe your radar and determine that risk of collision exists with a vessel which is 2 miles off your port bow. You should __________.
N a. stop your engines N b. sound the danger signal at two-minute intervals N c. hold course and speed until the other vessel is sighted Y d. take avoiding action as soon as possible 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 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 4854: BOTH INTERNATIONAL & INLAND You are approaching another vessel on crossing courses. She is approximately half a mile distant on your starboard bow. You believe she will cross ahead of you but she sounds a whistle signal of five short blasts. You should __________.
N a. sound a signal of one prolonged blast Y b. make a large course change N c. reduce speed slightly to make sure she will have room to pass N d. wait for another whistle signal from the other vessel 4860: BOTH INTERNATIONAL & INLAND A vessel engaged in mineclearance operations shows special identity lights __________.
Y a. in addition to the lights required for a power-driven vessel N b. which means that other vessels should not approach closer than 500 meters on either side of the vessel N c. that are green and show through an arc of the horizon of 225° N d. All of the above 8061: INTERNATIONAL ONLY Vessel "A" is overtaking vessel "B" on open waters as shown and will pass without changing course. Vessel "A" __________. (DIAGRAM 17 )
N a. should sound two short blasts N b. should sound the danger signal N c. should sound one long blast Y d. need not sound any whistle signals 8064: INTERNATIONAL ONLY You are underway in fog and hear a fog signal consisting of one prolonged and two short blasts. It could be any of the following EXCEPT a vessel __________.
N a. engaged in mineclearance N b. engaged in fishing N c. constrained by her draft Y d. being towed 8073: INTERNATIONAL ONLY In a narrow channel, an overtaking vessel which intends to PASS on the other vessel's port side would sound __________.
N a. one prolonged followed by two short blasts N b. one short blast Y c. two prolonged followed by two short blasts N d. two short blasts 8105: 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. You should __________.
N a. hold your course and speed Y b. not impede the other vessel N c. exchange passing signals N d. sound the danger signal 8128: INTERNATIONAL ONLY Which statement is TRUE, according to the Rules?
Y a. 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 b. A vessel not under command shall keep out of the way of a vessel restricted in her ability to maneuver. N c. A vessel engaged in fishing shall keep out of the way of a sailing vessel. N d. A vessel not under command shall keep out of the way of a vessel engaged in fishing. 8136: INTERNATIONAL ONLY A power-driven vessel pushing ahead or towing alongside will show sidelights, a stern light, and __________.
N a. an all-round red light where it can best be seen N b. two yellow masthead lights in a vertical line Y c. two masthead lights in a vertical line N d. a single white light forward