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.
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 36: INLAND ONLY Which type of vessel is NOT mentioned in the Inland Navigation Rules?
N a. An inconspicuous, partly submerged vessel N b. A seaplane N c. An air-cushion vessel Y d. A vessel constrained by her draft 37: INLAND ONLY You are operating a vessel through a narrow channel and 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 her intentions. You __________.
Y a. must sound the danger signal N b. are required to back down N c. may sound the danger signal N d. should sound one short blast to show that you are holding course and speed 136: INLAND ONLY Yellow lights are NOT used to identify __________.
N a. a dredge pipeline on a trestle N b. the heads of tows being pushed ahead by tugboats N c. purse seiners Y d. a seaplane on the water 187: BOTH INTERNATIONAL & INLAND You are in charge of a power-driven vessel making way in dense fog. You observe what appears to be another vessel on radar half a mile distant on your port bow and closing. You must __________.
N a. sound the danger signal N b. exchange passing signals Y c. sound one prolonged blast N d. sound one short, one prolonged, and one short blast 193: BOTH INTERNATIONAL & INLAND You are on vessel "B" and crossing a narrow channel. Vessel "A", who can only navigate within the channel, is on your port bow and crossing as shown. Which action should you take? (DIAGRAM 40 )
N a. Maintain course and speed as the ship is on your port bow. Y b. Give way to the other vessel. N c. Increase speed and cross his bow. N d. Sound the danger signal. 208: INTERNATIONAL ONLY A single vessel being towed alongside shall show __________.
N a. one all-round white light Y b. sidelights and a stern light N c. only the outboard sidelight and a stern light N d. a masthead light, sidelights, and a stern light 264: INTERNATIONAL ONLY Two power-driven vessels are meeting in the situation as shown. One short blast from either vessel means __________. (DIAGRAM 37 )
Y a. "I am altering my course to starboard." N b. "I intend to leave you on my port side." N c. "I intend to hold course and speed." N d. "I am altering my course to port." 362: BOTH INTERNATIONAL & INLAND Two power-driven vessels are crossing as shown. Vessel "A" sounds two short blasts on the whistle. You are on vessel "B" and are in 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 right or slow down N c. sound one short blast and maintain course and speed Y d. sound five or more short and rapid blasts 367: BOTH INTERNATIONAL & INLAND Two power-driven vessels are crossing as shown. Vessel "A" sounds one short blast on the whistle. Vessel "A" is __________. (DIAGRAM 42 )
Y a. give-way vessel N b. stand-on vessel N c. overtaking vessel N d. None of the above 4141: BOTH INTERNATIONAL & INLAND While underway and towing, your vessel enters fog. Which fog signal should you sound?
N a. One prolonged blast N b. Two prolonged blasts Y c. One prolonged blast and two short blasts N d. Three distinct blasts 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 4159: BOTH INTERNATIONAL & INLAND A power-driven vessel underway shall keep out of the way of a __________.
N a. vessel not under command N b. vessel engaged in fishing N c. sailing vessel Y d. All of the above 4239: BOTH INTERNATIONAL & INLAND You are on a vessel nearing a bend in the channel where, because of the height of the bank, you cannot see a vessel approaching from the opposite direction. You should sound __________.
N a. one short blast Y b. one prolonged blast N c. one long blast N d. five or more short blasts 4240: BOTH INTERNATIONAL & INLAND Systems of inbound and outbound lanes to promote the safe flow of vessel traffic in certain areas around the world are known as __________.
N a. merchant vessel reporting systems Y b. traffic separation schemes N c. collision avoidance fairways N d. restricted maneuverability channels 4243: BOTH INTERNATIONAL & INLAND In reduced visibility, you hear two prolonged blasts of a whistle. This signal is sounded by a __________.
Y a. power-driven vessel dead in the water N b. sailing vessel on the port tack N c. vessel not under command N d. vessel fishing with nets 4270: BOTH INTERNATIONAL & INLAND A vessel displaying the lights shown is a __________. (DIAGRAM 70 )
N a. pilot boat N b. sailboat Y c. fishing vessel N d. motorboat 4276: BOTH INTERNATIONAL & INLAND While underway your vessel enters fog. You stop your engines and the vessel is dead in the water. Which fog signal should you sound?
N a. One prolonged blast every two minutes Y b. Two prolonged blasts every two minutes N c. Three short blasts every two minutes N d. One prolonged and three short blasts every two minutes 4348: BOTH INTERNATIONAL & INLAND You are on vessel "A" pushing a barge ahead and meeting vessel "B" as shown. How should the vessels pass? (DIAGRAM 12 )
Y a. Both vessels must alter course to starboard and pass port to port. N b. Both vessels must alter course to port and pass starboard to starboard. N c. Vessel "A" should maintain course and vessel "B" alter course. N d. The vessels should determine which will alter course by sounding whistle signals. 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 4438: BOTH INTERNATIONAL & INLAND You are at anchor in fog. The fog signal of a vessel underway has been steadily growing louder and the danger of collision appears to exist. In addition to your fog signal, what signal may be used to indicate the presence of your vessel?
N a. Three blasts on the whistle; one prolonged, one short, and one prolonged. Y b. Three blasts on the whistle; one short, one prolonged, and one short. N c. Three blasts on the whistle; one prolonged followed by two short. N d. No signal other than your fog signal may be used. 4582: BOTH INTERNATIONAL & INLAND At night, a vessel displaying the lights shown is __________. (DIAGRAM 52 )
N a. pushing ahead Y b. underway N c. towing a submerged object N d. engaged in dredging 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 4830: BOTH INTERNATIONAL & INLAND The Navigation Rules define a "vessel not under command" as a vessel which __________.
N a. from the nature of her work is unable to keep out of the way of another vessel N b. does not have a proper look-out N c. by taking action contrary to the Rules has created a special circumstance situation Y d. through some exceptional circumstance is unable to maneuver as required by the Rules 5300: BOTH INTERNATIONAL & INLAND A traffic separation zone is that part of a traffic separation scheme which __________.
N a. is located between the scheme and the nearest land Y b. separates traffic proceeding in one direction from traffic proceeding in the opposite direction N c. is designated as an anchorage area N d. contains all the traffic moving in the same direction 8018: INTERNATIONAL ONLY On open water, a power-driven vessel coming up dead astern of another vessel and altering her course to starboard so as to pass on the starboard side of the vessel ahead would sound __________.
N a. two short blasts Y b. one short blast N c. two prolonged blasts followed by one short blast N d. one long and one short blast 8020: INTERNATIONAL ONLY A vessel not under command sounds the same fog signal as a vessel __________.
N a. towing N b. constrained by her draft N c. under sail Y d. All of the above 8020: INTERNATIONAL ONLY A vessel not under command sounds the same fog signal as a vessel __________.
N a. towing N b. constrained by her draft N c. under sail Y d. All of the above 8075: INTERNATIONAL ONLY You intend to overtake a vessel in a narrow channel, and you intend to pass along the vessel's port side. How should you signal your intention?
N a. Two short blasts followed by two prolonged blasts Y b. Two prolonged followed by two short blasts N c. Two prolonged blasts only N d. Two short blasts only 8120: INTERNATIONAL ONLY A light used to signal passing intentions must be an __________.
N a. all-round yellow light only Y b. all-round white light only N c. all-round blue light only N d. alternating red and yellow light