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 95: INLAND ONLY You are meeting another vessel in inland waters, and she sounds one short blast on the whistle. This means that she __________.
N a. is changing course to starboard N b. is changing course to port Y c. intends to leave you on her port side N d. desires to depart from the Rules 96: INLAND ONLY You are approaching a sharp bend in a river. You have sounded a prolonged blast and it has been answered by a vessel on the other side of the bend. Which statement is TRUE?
Y a. Both vessels must exchange passing signals when in sight and passing within one-half mile of each other. N b. No further whistle signals are necessary. N c. The vessel downriver must stop her engines and navigate with caution. N d. Both vessels must immediately sound passing signals whether or not they are in sight of each other. 114: INLAND ONLY At night, what lights are required on barges moored in a group formation more than two barges wide?
N a. All-round yellow lights placed at the corners of each barge in the group N b. Two yellow lights in a vertical line at the corner extremities of the group Y c. Two unobstructed all-round white lights N d. Two unobstructed all-round red lights 149: INLAND ONLY A power-driven vessel pushing ahead or towing alongside on the Mississippi River, above the Huey P. Long Bridge, shall carry __________.
N a. two masthead lights, sidelights, and stern light N b. two masthead lights, sidelights, and two towing lights Y c. sidelights and two towing lights N d. one masthead light, sidelights, and stern light 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 298: BOTH INTERNATIONAL & INLAND A vessel displaying the lights shown is a(n) __________. (DIAGRAM 79 )
N a. vessel constrained by her draft N b. law enforcement vessel N c. vessel not under command Y d. vessel towing astern 4002: BOTH INTERNATIONAL & INLAND While underway in fog, you hear a prolonged blast from another vessel. This signal indicates a __________.
N a. sailboat underway N b. vessel underway, towing Y c. power-driven vessel underway, making way N d. vessel being towed 4006: BOTH INTERNATIONAL & INLAND Your vessel is approaching a bend. You hear a prolonged blast from around the bend. You should __________.
N a. back your engines N b. stop your engines and drift Y c. answer with one prolonged blast N d. sound the danger signal 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 4050: BOTH INTERNATIONAL & INLAND A 22-meter sailing vessel when also being propelled by machinery shall show during daylight hours a __________.
N a. black diamond Y b. black cone N c. black ball N d. basket 4093: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning two sailing vessels?
Y a. A sailing vessel with the wind forward of the beam on her port side shall keep out of the way of a sailing vessel with the wind forward of the beam on the starboard side. N b. When both vessels have the wind on the same side, the vessel to leeward shall keep out of the way. N c. A sail vessel with the wind abaft of the beam must keep out of the way of a vessel sailing into the wind. N d. None of the above 4180: BOTH INTERNATIONAL & INLAND A power-driven vessel, when 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 4199: BOTH INTERNATIONAL & INLAND A vessel which is fishing must show sidelights and a stern light only when __________.
N a. anchored N b. underway N c. dead in the water Y d. underway and making way 4213: BOTH INTERNATIONAL & INLAND Which statement concerning whistle signals is FALSE?
N a. When a pushing vessel and a vessel pushed are connected in a composite unit, the unit sounds the fog signal of a power-driven vessel. N b. A vessel at anchor may sound one short, one prolonged, and one short blast. N c. A pilot vessel may sound an identity signal on the whistle. Y d. A vessel engaged in towing in fog shall sound a fog signal at intervals of one minute. 4349: BOTH INTERNATIONAL & INLAND If a vessel is engaged in fishing according to the definitions in the Rules, it will have __________.
N a. gear extending from the side or stern Y b. gear that restricts maneuverability N c. less than 50 percent trolling lines N d. None of the above 4398: BOTH INTERNATIONAL & INLAND A tugboat displaying the day-shape shown __________. (DIAGRAM 10 )
N a. is at anchor N b. is not under command Y c. has a tow that exceeds 200 meters in length N d. has a tow that is carrying dangerous cargo 4422: BOTH INTERNATIONAL & INLAND Each prolonged blast on whistle signals used by a power-driven vessel in fog, whether making way or underway but not making way, is __________.
N a. about one second N b. two to four seconds Y c. four to six seconds N d. eight to ten seconds 4435: BOTH INTERNATIONAL & INLAND Which procedure(s) shall be used to determine risk of collision?
N a. Watching the compass bearing of an approaching vessel N b. Systematic observation of objects detected by radar N c. Long-range radar scanning Y d. All of the above 4533: BOTH INTERNATIONAL & INLAND In which situation do the Rules require both vessels to change course?
Y a. Two power-driven vessels meeting head-on N b. Two power-driven vessels crossing when it is apparent to the stand-on vessel that the give-way vessel is not taking appropriate action N c. Two sailing vessels crossing with the wind on the same side N d. All of the above 4589: BOTH INTERNATIONAL & INLAND You are operating in restricted visibility and hear a signal of a rapidly ringing bell followed by the rapid sounding of a gong. It could be a __________.
N a. 30-meter sail vessel at anchor N b. 150-meter power-driven vessel aground N c. vessel in distress Y d. 300-meter power-driven vessel at anchor 4603: BOTH INTERNATIONAL & INLAND In addition to sidelights what light should a vessel being towed astern show?
Y a. A stern light N b. A masthead light N c. Not under command lights N d. Range lights 4642: BOTH INTERNATIONAL & INLAND By radar alone, you detect a vessel ahead on a collision course, about 3 miles distant. Your radar plot shows this to be a meeting situation. You should __________.
N a. turn to port Y b. turn to starboard N c. maintain course and speed and sound the danger signal N d. maintain course and speed and sound no signal 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 4726: BOTH INTERNATIONAL & INLAND A tug is towing three unmanned barges astern in fog. The third vessel of the tow should sound __________.
Y a. no fog signal N b. one short blast N c. one prolonged and three short blasts N d. one prolonged, one short, and one prolonged blast 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 8024: INTERNATIONAL ONLY Which signal is required to be sounded by a power-driven vessel ONLY?
Y a. A signal meaning, "I am altering my course to starboard." N b. A signal meaning, "I intend to overtake you on your starboard side." N c. A signal meaning that the vessel sounding it is in doubt as to the other vessel's actions. N d. A signal sounded when approaching a bend. 8048: INTERNATIONAL ONLY You are underway in a narrow channel, and you are being overtaken by a vessel astern. After the overtaking vessel sounds the proper signal indicating his intention to pass your vessel on your starboard side, you signal your agreement by sounding __________.
N a. one short blast N b. two prolonged blasts N c. two prolonged followed by two short blasts Y d. one prolonged, one short, one prolonged, and one short blast in that order 8096: INTERNATIONAL ONLY A vessel constrained by her draft may display __________.
N a. three all-round red lights instead of the lights required for a power-driven vessel of her class N b. the same lights as a vessel restricted in her ability to maneuver Y c. three all-round red lights in addition to the lights required for a power-driven vessel of her class N d. the lights for a power-driven vessel which is not under command