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 __________.


34: INLAND ONLY A barge more than 50 meters long is required to show how many white anchor lights when anchored in a Secretary approved "special anchorage area"?


99: INLAND ONLY A power-driven vessel when pushing ahead or towing alongside on the Western Rivers (above the Huey P. Long Bridge on the Mississippi River) shall exhibit __________.


282: INLAND ONLY While underway you sight the lights shown with the yellow lights flashing. The lights displayed are from a __________. (DIAGRAM 81 )

    N a. vessel not under command
    Y b. dredge pipeline
    N c. vessel aground
    N d. vessel engaged in fishing

322: BOTH INTERNATIONAL & INLAND The vessel whose lights are shown is navigating in a narrow channel. Which statement about this vessel is TRUE? (DIAGRAM 82 )

    Y a. It shall not impede the passage of any other vessel navigating within the channel or fairway.
    N b. It is the stand-on vessel
    N c. It may anchor in the channel or fairway
    N d. It shows two balls

338: 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. Vessel "B" should sound __________. (DIAGRAM 42 )

    N a. one prolonged, one short, one prolonged and one short blasts
    Y b. one short blast
    N c. two prolonged blasts followed by one short blast
    N d. two short blasts

364: BOTH INTERNATIONAL & INLAND Two power-driven vessels are crossing as shown. Vessel "A" sounds one short blast on the whistle. Vessel "B" is the __________. (DIAGRAM 42 )

    N a. burdened vessel
    N b. give-way vessel
    Y c. stand-on vessel
    N d. overtaking vessel

727: INLAND ONLY Maneuvering signals shall be sounded on inland waters by __________.

    N a. all vessels when meeting, crossing, or overtaking and in sight of one another
    N b. all vessels meeting or crossing at a distance within half a mile of each other and not in sight of one another
    Y c. power-driven vessels overtaking and in sight of one another
    N d. power-driven vessels crossing at a distance within half a mile of each other and NOT in sight of one another

4040: BOTH INTERNATIONAL & INLAND Which of the day-shapes shown indicates a vessel with a tow exceeding 200 meters in length? (DIAGRAM 16 )

    N a. A
    Y b. B
    N c. C
    N d. D

4182: BOTH INTERNATIONAL & INLAND Distress signals may be __________.

    N a. red flares
    N b. smoke signals
    N c. sound signals
    Y d. Any of the above

4185: BOTH INTERNATIONAL & INLAND A vessel engaged in fishing, and at anchor, should exhibit __________.

    N a. an anchor light
    N b. sidelights and stern light
    N c. three lights in a vertical line, the highest and lowest being red, and the middle being white
    Y d. None of the above

4186: BOTH INTERNATIONAL & INLAND A vessel fishing should display which of the day signals shown. (DIAGRAM 1 )

    N a. A
    Y b. B
    N c. C
    N d. D

4189: BOTH INTERNATIONAL & INLAND You see a vessel displaying the day signal shown. The vessel may be __________. (DIAGRAM 6 )

    N a. not under command
    N b. fishing with trawls
    Y c. laying cable
    N d. aground

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

4255: BOTH INTERNATIONAL & INLAND A stand-on vessel in a crossing situation is allowed to take action when __________.

    N a. on a collision course
    N b. the vessels will pass within one mile
    Y c. it becomes apparent to her that the give-way vessel is not taking appropriate action
    N d. the relative speed of the vessels indicates collision in less than six minutes

4282: BOTH INTERNATIONAL & INLAND A vessel displaying the lights shown is __________. (DIAGRAM 63 )

    Y a. towing astern
    N b. underway and more than 50 meters in length
    N c. broken down
    N d. fishing

4357: BOTH INTERNATIONAL & INLAND A vessel 15 meters in length which is proceeding under sail as well as being propelled by machinery shall exhibit during the daytime __________.

    N a. one black ball
    N b. a basket
    Y c. a cone with its apex downward
    N d. two cones with their apexes together

4372: BOTH INTERNATIONAL & INLAND You are the stand-on vessel in a crossing situation. If you think the give-way vessel is NOT taking sufficient action to avoid collision, you should sound __________.

    N a. one short blast and maintain course
    N b. two short blasts, alter to port, and pass astern
    N c. no signal and maneuver at will
    Y d. the danger signal

4386: BOTH INTERNATIONAL & INLAND While underway in fog you hear a rapid ringing of a bell ahead. This bell indicates a __________.

    Y a. vessel at anchor
    N b. vessel in distress
    N c. sailboat underway
    N d. vessel backing out of a berth

4414: BOTH INTERNATIONAL & INLAND Every vessel which is directed by these Rules to keep out of the way of another vessel shall, if the circumstances of the case admit, avoid __________.

    Y a. crossing ahead of the other
    N b. crossing astern of the other
    N c. passing port to port
    N d. passing starboard to starboard

4503: BOTH INTERNATIONAL & INLAND Which vessel must show a masthead light abaft of and higher than her identifying lights?

    N a. A 55-meter vessel fishing
    Y b. A 55-meter vessel trawling
    N c. A 100-meter vessel not under command
    N d. A 20-meter vessel engaged on pilotage duty

4507: BOTH INTERNATIONAL & INLAND The lights required by the Rules must be shown __________.

    Y a. from sunrise to sunset in restricted visibility
    N b. at all times
    N c. ONLY from sunset to sunrise
    N d. whenever a look-out is posted

4513: BOTH INTERNATIONAL & INLAND By day, you sight a vessel displaying three shapes in a vertical line. The top and bottom shapes are balls, and the middle shape is a diamond. It could be a __________.

    N a. vessel trolling
    N b. mineclearing vessel
    N c. trawler
    Y d. vessel engaged in replenishment at sea

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

4637: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning a vessel under oars?

    N a. She must show a stern light.
    Y b. She is allowed to show the same lights as a sailing vessel.
    N c. She must show a fixed all-round white light.
    N d. She must show a day-shape of a black cone.

4721: BOTH INTERNATIONAL & INLAND Which vessel when anchored at night, would not be required to show anchor lights?

    Y a. A vessel engaged in underwater operations
    N b. A vessel engaged in mine clearance
    N c. A vessel engaged on pilotage duty
    N d. A vessel engaged in survey operations

4866: BOTH INTERNATIONAL & INLAND If two sailing vessels are running free with the wind on the same side, which one must keep clear of the other?

    N a. The one with the wind closest abeam
    Y b. The one to windward
    N c. The one to leeward
    N d. The one that sounds the first whistle signal

8004: INTERNATIONAL ONLY When moving from a berth alongside a quay (wharf), a vessel must sound __________.

    N a. three short blasts
    N b. a long blast
    N c. a prolonged blast
    Y d. No signal is required.

8014: INTERNATIONAL ONLY A power-driven vessel leaving a quay or wharf must sound what signal?

    N a. Three short blasts
    N b. A long blast
    N c. A prolonged blast
    Y d. No signal is required.

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