USCG Rules of the Road: Master's License

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.


6: INLAND ONLY A vessel displaying a flashing blue light is __________.


16: INLAND ONLY For the purpose of the Inland Navigation Rules, the term "Inland Waters" includes __________.


134: INLAND ONLY Which is TRUE of a vessel downbound with a following current when meeting an upbound vessel on the Western Rivers?


183: BOTH INTERNATIONAL & INLAND Which vessel must show an after masthead light, if over 50 meters in length?

    N a. A vessel engaged in fishing
    N b. A vessel at anchor
    N c. A vessel not under command
    Y d. A vessel trawling

210: INLAND ONLY A single vessel being towed alongside shall exhibit __________.

    N a. one all-round white light
    Y b. sidelights, stern light and a special flashing light
    N c. only the outboard sidelight and a stern light
    N d. a masthead light, sidelights, and a stern light

327: BOTH INTERNATIONAL & INLAND Diagram "A" shows the arc of visibility of a __________. (DIAGRAM 23 )

    N a. white masthead light
    N b. green sidelight
    Y c. red sidelight
    N d. stern light

330: BOTH INTERNATIONAL & INLAND Diagram "B" shows the arc of visibility of a __________. (DIAGRAM 23 )

    N a. white masthead light
    Y b. green sidelight
    N c. red sidelight
    N d. stern light

397: INTERNATIONAL ONLY Which signal may be sounded ONLY by vessels in restricted visibility?

    N a. At least five short and rapid blasts
    Y b. Four short blasts
    N c. One prolonged, one short, one prolonged, and one short blast, in that order
    N d. Two short blasts

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

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

4173: BOTH INTERNATIONAL & INLAND A power-driven vessel underway shall keep out of the way of a vessel __________.

    N a. not under command
    N b. restricted in her ability to maneuver
    N c. engaged in fishing
    Y d. All of the above

4173: BOTH INTERNATIONAL & INLAND A power-driven vessel underway shall keep out of the way of a vessel __________.

    N a. not under command
    N b. restricted in her ability to maneuver
    N c. engaged in fishing
    Y d. All of the above

4217: BOTH INTERNATIONAL & INLAND A man aboard a vessel, signaling by raising and lowering his outstretched arms to each side, is indicating __________.

    N a. danger, stay away
    N b. all is clear, it is safe to pass
    N c. the vessel is anchored
    Y d. a distress signal

4295: BOTH INTERNATIONAL & INLAND The use of the danger signal __________.

    N a. replaces directional signals
    N b. makes the other vessel the stand-on vessel
    Y c. indicates doubt as to another vessels actions
    N d. is the same as a "MAYDAY" signal

4315: INTERNATIONAL ONLY While underway and in sight of another vessel you put your engines on astern propulsion. Which statement concerning whistle signals is TRUE?

    Y 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.
    N d. You need not sound any whistle signals.

4318: BOTH INTERNATIONAL & INLAND Which is NOT a distress signal?

    N a. Flames on a vessel
    Y b. Vertical motion of a white lantern at night
    N c. Code flags "November" and "Charlie"
    N d. Dye marker on the water

4336: BOTH INTERNATIONAL & INLAND While underway and in sight of another vessel crossing less than .5 mile away, you put your engines full speed astern. Which statement concerning whistle signals is TRUE?

    Y 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.
    N d. You need not sound any whistle signals.

4496: BOTH INTERNATIONAL & INLAND A vessel which is fishing is required to 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

4520: BOTH INTERNATIONAL & INLAND When anchoring a 20-meter vessel at night, you must show __________.

    Y a. one all-round white light
    N b. two all-round white lights
    N c. one all-round white light and the stern light
    N d. one all-round white light and a flare up light

4539: BOTH INTERNATIONAL & INLAND All of the following are distress signals under the Rules EXCEPT __________.

    Y a. a green star signal
    N b. orange-colored smoke
    N c. red flares
    N d. the repeated raising and lowering of outstretched arms

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

4640: BOTH INTERNATIONAL & INLAND When two power-driven vessels are crossing, which vessel is the stand-on vessel?

    Y a. The vessel which is to starboard of the other vessel
    N b. The vessel which is to port of the other vessel
    N c. The larger vessel
    N d. The vessel that sounds the first whistle signal

4701: BOTH INTERNATIONAL & INLAND A fog signal of one prolonged blast followed by four short blasts would mean the presence of a __________.

    N a. vessel being towed
    Y b. power-driven pilot vessel on station underway
    N c. fishing vessel trawling
    N d. vessel at anchor warning of her location

4831: BOTH INTERNATIONAL & INLAND Which craft is a "power-driven vessel" under the Rules of the Road?

    N a. An auxiliary sailing vessel, using her engine
    N b. A canoe propelled by a small outboard motor
    N c. A trawler on her way to the fishing grounds
    Y d. All of the above

4841: BOTH INTERNATIONAL & INLAND A vessel transferring cargo while underway is classified by the Rules as a vessel __________.

    Y a. restricted in her ability to maneuver
    N b. in special circumstances
    N c. not under command
    N d. constrained by her draft

4851: BOTH INTERNATIONAL & INLAND. In which situation would you consider a risk of collision to exist?

    N a. A vessel is one point on your starboard 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.
    Y c. A vessel is two points abaft your port beam, range decreasing, bearing constant.
    N d. A vessel is on your starboard quarter, range increasing, bearing is constant.

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.

8053: INTERNATIONAL ONLY A 20-meter power-driven vessel pushing ahead or towing alongside will display __________.

    N a. a single white light forward
    Y b. two masthead lights in a vertical line
    N c. two towing lights in a vertical line
    N d. two all-round red lights where they can best be seen

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

8068: INTERNATIONAL ONLY A signal of one prolonged, one short, one prolonged, and one short blast, in that order is given by a vessel __________.

    N a. engaged on pilotage duty
    N b. in distress
    N c. at anchor
    Y d. being overtaken in a narrow channel