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.
29: INLAND ONLY A fleet of moored barges extends into a navigable channel. What is the color of the lights on the barges?
N a. Red N b. Amber Y c. White N d. Yellow 60: INLAND ONLY Two vessels are meeting on a clear day and will pass less than half a mile apart. In this situation whistle signals __________.
N a. must be exchanged N b. may be exchanged Y c. must be exchanged if passing agreements have not been made by radio N d. must be exchanged only if course changes are necessary by either vessel 74: INLAND ONLY Which term is NOT used in the Inland Navigation Rules?
N a. A vessel engaged in mineclearing operations Y b. A vessel constrained by her draft N c. A vessel towing N d. A vessel engaged in fishing 117: INLAND ONLY Which is a characteristic of a "special flashing light"?
N a. It is required for all vessels being pushed ahead as part of a composite unit. Y b. It must show through an arc of not less than 180° nor more than 225°. N c. It must be of the same character and construction as the masthead light. N d. All of the above 137: INLAND ONLY A vessel displaying an alternating red and yellow light is __________.
N a. in distress N b. enforcing the law Y c. engaged in public safety activities N d. restricted in its ability to maneuver 147: INLAND ONLY What characteristic must a light used to indicate passing intentions have?
N a. It must be an alternating red and yellow light. N b. It must be an all-round white light. N c. It must be an all-round yellow light. Y d. It must be either an all-round white or an all-round yellow light. 255: INTERNATIONAL ONLY Vessels "A" and "B" are meeting on a river as shown and will pass 1/4 mile apart. Which light on vessel "B" will you see if you are on vessel "A"? (DIAGRAM 41 )
N a. special flashing yellow light N b. flashing blue light N c. two yellow towing lights Y d. None of the above 287: BOTH INTERNATIONAL & INLAND The lead vessel shown is a __________. (DIAGRAM 24 )
N a. dredge N b. sailing vessel N c. power-driven vessel pushing ahead Y d. None of the above 329: BOTH INTERNATIONAL & INLAND Diagram "C" shows the arc of visibility of a __________. (DIAGRAM 23 )
N a. white masthead light N b. red sidelight N c. stern light Y d. None of the above 358: 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. Vessel "B" is the __________. (DIAGRAM 42 )
N a. burdened vessel N b. give-way vessel N c. overtaking vessel Y d. None of the above 4046: BOTH INTERNATIONAL & INLAND You are underway on vessel "A" and sight vessel "B" which is a vessel underway and fishing as shown. Which statement is true? (DIAGRAM 14 )
N a. Vessel "A" must keep out of the way of vessel "B" because "B" is to port. Y b. Vessel "A" must keep out of the way of vessel "B" because "B" is fishing. N c. Vessel "B" must keep out of the way of vessel "A" because "A" is to starboard. N d. In this case, both vessels are required by the Rules to keep clear of each other. 4051: BOTH INTERNATIONAL & INLAND The rules concerning lights shall be complied with in all weathers from sunset to sunrise. The lights __________.
Y a. shall be displayed in restricted visibility during daylight hours N b. need not be displayed when no other vessels are in the area N c. shall be set at low power when used during daylight hours N d. need not be displayed by unmanned vessels 4120: BOTH INTERNATIONAL & INLAND A vessel engaged in fishing during the day would show __________.
N a. one black ball N b. two cones with bases together N c. a cone, apex downward Y d. two cones, apexes together 4154: BOTH INTERNATIONAL & INLAND Which vessel, when anchored at night, is NOT required to show anchor lights?
N a. A power-driven vessel N b. A vessel engaged on pilotage duty Y c. A vessel dredging N d. A vessel restricted in her ability to maneuver 4176: BOTH INTERNATIONAL & INLAND Two all-round red lights displayed in a vertical line are shown by a vessel __________.
N a. being towed N b. pushing a barge ahead N c. at anchor Y d. not under command 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 4286: BOTH INTERNATIONAL & INLAND A vessel which is underway at night and displaying the lights shown is __________. (DIAGRAM 69 )
Y a. engaged in trawling N b. minesweeping N c. under sail N d. a pilot boat 4322: BOTH INTERNATIONAL & INLAND In which situation do you think a risk of collision exists?
N a. A vessel is 22° on your port bow, range increasing, bearing changing slightly to the right. N b. A vessel is broad on your starboard beam, range decreasing, bearing changing rapidly to the right. N c. A vessel is 22° abaft your port beam, range increasing, bearing is constant. Y d. A vessel is on your starboard quarter, range decreasing, bearing is constant. 4379: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning risk of collision?
N a. The stand-on vessel must keep out of the way of the other vessel when risk of collision exists. N b. Risk of collision always exists when two vessels pass within one mile of each other. N c. Risk of collision always exists when the compass bearing of an approaching vessel changes appreciably. Y d. Risk of collision may exist when the compass bearing of an approaching vessel is changing appreciably. 4418: BOTH INTERNATIONAL & INLAND When two vessels are in immediate danger of collision, the stand-on vessel must __________.
N a. abandon ship Y b. assist in taking whatever action is necessary to avoid collision N c. hold course and speed N d. sound a distress signal 4523: BOTH INTERNATIONAL & INLAND A vessel is overtaking when she approaches another from more than how many degrees abaft the beam?
N a. 0.0° N b. 11.25° Y c. 22.5° N d. 45.0° 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. 4570: BOTH INTERNATIONAL & INLAND Which signal may at some time be exhibited by a vessel trawling?
N a. Two white lights in a vertical line N b. A white light over a red light in a vertical line N c. Two red lights in a vertical line Y d. All of the above 4617: BOTH INTERNATIONAL & INLAND A vessel proceeding along a narrow channel shall __________.
N a. avoid crossing the channel at right angles N b. not overtake any vessels within the channel Y c. keep as near as safe and practicable to the limit of the channel on her starboard side N d. when nearing a bend in the channel, sound a long blast of the whistle 4622: BOTH INTERNATIONAL & INLAND The Navigation Rules state that a vessel shall be operated at a safe speed at all times so that she can be stopped within __________.
N a. the distance of visibility N b. 1/2 the distance of visibility Y c. a distance appropriate to the existing circumstances and conditions N d. the distance that it would require for the propeller to go from full ahead to full astern 4706: BOTH INTERNATIONAL & INLAND A "flashing light" is a light that __________.
Y a. flashes at regular intervals at a frequency of 120 flashes or more per minute N b. is yellow in color N c. is visible over an arc of the horizon of not less than 180° nor more than 225° N d. All of the above 4716: BOTH INTERNATIONAL & INLAND Which day-shape should a vessel being towed exhibit if the tow EXCEEDS 200 meters?
N a. A cone, apex downward N b. A cone, apex upward Y c. A diamond N d. A ball 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. 8058: INTERNATIONAL ONLY Which vessel is to keep out of the way of the others?
N a. A vessel constrained by her draft N b. A vessel engaged in underwater operations Y c. A vessel engaged in trawling N d. A vessel not under command 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