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. 53: INLAND ONLY You are on vessel "A" and vessel "B" desires to overtake you on the starboard side as shown. After the vessels have exchanged one blast signals you should __________. (DIAGRAM 38 )
N a. alter course to the left N b. slow your vessel until vessel "B" has passed Y c. hold course and speed N d. alter course to the left or right to give vessel "B" more sea room 81: INLAND ONLY When two power-driven vessels are meeting on the Great Lakes, Western Rivers, or waters specified by the Secretary, where there is a current, which vessel shall sound the first passing signal?
N a. The vessel going upstream stemming the current Y b. The vessel downbound with a following current N c. The vessel that is towing regardless of the current N d. Either vessel 133: INLAND ONLY A power-driven vessel operating in a narrow channel with a following current on the Great Lakes or Western Rivers is meeting an upbound vessel. Which statement is TRUE?
Y a. The downbound vessel has the right of way. N b. The upbound vessel must initiate the required maneuvering signals. N c. The upbound vessel must propose the manner of passing. N d. All of the above 182: BOTH INTERNATIONAL & INLAND At night, you see the display of lights shown. They indicate a(n) __________. (DIAGRAM 74 )
N a. vessel under oars Y b. sailing vessel N c. law enforcement vessel N d. air-cushion vessel 215: INTERNATIONAL ONLY At night you sight the lights shown. What do the lights indicate? (DIAGRAM 66 )
N a. Two vessels pair trawling Y b. A tug with a tow alongside N c. A ship being assisted by a tug N d. A vessel engaged in fishing 240: BOTH INTERNATIONAL & INLAND Vessel "A" is overtaking vessel "B" as shown and will pass without changing course. Which light will vessel "A" observe on vessel "B"? (DIAGRAM 17 )
N a. yellow towing light Y b. white stern light N c. green sidelight N d. None of the above 260: INLAND ONLY A vessel engaged in public safety activities may display an alternately flashing red and yellow light. This special light may be used by a vessel engaged in __________.
Y a. search and rescue N b. restricted in ability to maneuver N c. not under command N d. river bank protection 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 292: BOTH INTERNATIONAL & INLAND The tug shown is greater than 50 meters and severely restricted in her ability to deviate from her course. Which lights would be displayed from the towing vessel? (DIAGRAM 24 )
N a. Two 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 Y d. None of the above 356: INTERNATIONAL ONLY Two power-driven vessels are crossing within one half mile of each other as shown. Vessel "A" sounds one short blast of the whistle. This signal means __________. (DIAGRAM 42 )
N a. "I am intend to leave you on my port side" N b. "I intend to intend to overtake you on your port side" Y c. "I am altering my course to starboard" N d. None of the above 378: 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. This signal means __________. (DIAGRAM 42 )
N a. "I am altering my course to starboard" Y b. "I intend to leave you on my port side" N c. "I intend to overtake you on your port side" N d. "I am operating astern propulsion" 4076: BOTH INTERNATIONAL & INLAND If a rowboat underway does NOT show the lights specified for a sailing vessel underway, it shall show a __________.
N a. white light from sunset to sunrise N b. combined lantern showing green to starboard and red to port and shown from sunset to sunrise N c. combined lantern showing green to starboard and red to port and shown in sufficient time to prevent collision Y d. white light shown in sufficient time to prevent collision 4100: BOTH INTERNATIONAL & INLAND A 45-meter vessel is pulling a 210-meter tow. She may exhibit __________.
N a. a masthead light forward, and two masthead lights in a vertical line aft Y b. three masthead lights forward and one aft N c. two masthead lights forward and no after masthead light N d. three masthead lights aft and none forward 4121: BOTH INTERNATIONAL & INLAND A sailing vessel is NOT required to keep out of the way of a __________.
Y a. power-driven vessel N b. vessel not under command N c. vessel restricted in her ability to maneuver N d. vessel engaged in fishing 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 4212: BOTH INTERNATIONAL & INLAND While underway your vessel approaches a bend in a river where, due to the bank, you cannot see around the bend. You should __________.
N a. keep to the starboard side of the channel and sound one short blast N b. sound the danger signal Y c. sound one prolonged blast N d. slow your vessel to bare steerageway 4242: BOTH INTERNATIONAL & INLAND All fog signals shall be sounded every two minutes with the exception of a vessel __________.
N a. underway or making way N b. under sail or under tow Y c. anchored or aground N d. not under command or restricted in her ability to maneuver 4265: BOTH INTERNATIONAL & INLAND While underway and pushing a barge ahead, your vessel enters a heavy rain storm. You should sound __________.
N a. a prolonged blast every two minutes N b. two prolonged blasts every two minutes Y c. one prolonged and two short blasts every two minutes N d. one prolonged and three short blasts every two minutes 4432: BOTH INTERNATIONAL & INLAND A vessel displaying ONLY the lights shown is __________. (DIAGRAM 61 )
N a. fishing Y b. a pilot vessel at anchor N c. a fishing vessel aground N d. fishing and hauling her nets 4468: BOTH INTERNATIONAL & INLAND You see a vessel displaying three lights in a vertical line. The highest and lowest lights are red and the middle light is white. She is also showing a white light at the stern, which is lower than the forward light. It could be a __________.
Y a. survey vessel N b. vessel not under command N c. vessel aground N d. pilot vessel with port side to you 4493: BOTH INTERNATIONAL & INLAND You are underway in fog and hear one short, one prolonged, and one short blast in succession. What is the meaning of this signal?
N a. A vessel is in distress and needs assistance. N b. A vessel is fishing, hauling nets. Y c. A vessel is at anchor, warning of her position. N d. A vessel is towing. 4526: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning risk of collision?
N a. Risk of collision never exists if the compass bearing of the other vessel is changing. Y b. Proper use shall be made of radar equipment to determine risk of collision. N c. Risk of collision must be determined before any action can be taken by a vessel. N d. Risk of collision exists if the vessels will pass within half a mile of each other. 4542: BOTH INTERNATIONAL & INLAND A vessel is towing and carrying the required lights on the masthead. What is the visibility arc of these lights?
N a. 112.5° N b. 135.0° Y c. 225.0° N d. 360.0° 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 4700: BOTH INTERNATIONAL & INLAND What does the word "length" refer to?
N a. Length between the perpendiculars Y b. Length overall N c. Waterline length N d. Registered length 4700: BOTH INTERNATIONAL & INLAND What does the word "length" refer to?
N a. Length between the perpendiculars Y b. Length overall N c. Waterline length N d. Registered length 4713: BOTH INTERNATIONAL & INLAND What equipment for fog signals is required for a vessel 20 meters in length?
Y a. Whistle and bell only N b. Whistle only N c. Bell only N d. Whistle, bell, and gong 8023: BOTH INTERNATIONAL & INLAND A fishing vessel is approaching a vessel not under command. Which statement is TRUE?
Y a. The fishing vessel must keep clear of the vessel not under command. N b. If the vessel not under command is a power-driven vessel, she must keep clear of the fishing vessel. N c. They must exchange whistle signals. N d. Both vessels are required to take action to stay clear of each other. 8031: INTERNATIONAL ONLY Which statement(s) is(are) TRUE concerning light signals?
N a. The time between flashes shall be about five seconds. Y b. The time between successive signals shall be not less than ten seconds. N c. The light signals are to be used when not using sound signals. N d. All of the above