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.


33: INLAND ONLY For the purpose of the Inland Navigation Rules, the term "inland waters" includes __________.


72: INLAND ONLY You are approaching a vessel displaying the lights as shown. This is a(n) __________. (DIAGRAM 75 )


120: INLAND ONLY What shall be used to indicate the presence of a partly submerged object being towed?


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

219: INLAND ONLY You are proceeding up a channel in Chesapeake Bay and are meeting an outbound vessel. There is no current. You MUST __________.

    N a. keep to that side of the channel which is on your vessel's port side
    N b. stop your vessel, letting the outbound vessel sound the signals for meeting and passing
    Y c. propose or answer one- or two-blast whistle signals given by the other vessel if passing within 1/2 mile
    N d. give the outbound vessel the right-of-way

256: INTERNATIONAL ONLY Vessels "A" and "B" are meeting on a river as shown and will pass 1/4 mile apart. If you are on vessel "A", in addition to the sidelight, which other light(s) will you see on vessel "B"? (DIAGRAM 41 )

    N a. special flashing yellow light
    Y b. two white masthead lights in a vertical line
    N c. two yellow towing lights
    N d. None of the above

277: INLAND ONLY While underway you sight the lights shown with the yellow lights flashing. The lights displayed should be __________. (DIAGRAM 81 )

    Y a. visible at night and during periods of restricted visibility
    N b. visible for at least one mile
    N c. more than 50 meters apart
    N d. flashing at intervals of 120 flashes per minute

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

354: 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 intend to leave you on your starboard side"
    Y b. "I am altering my course to starboard"
    N c. "I am altering my course to port"
    N d. None of the above

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

386: INLAND ONLY Which statement is TRUE concerning the fog signal of a barge 35 meters in length, anchored in a "special anchorage area" approved by the Secretary?

    N a. The vessel shall ring a bell for 5 seconds every minute.
    Y b. The vessel is not required to sound a fog signal.
    N c. The vessel shall sound one blast of the whistle every 2 minutes.
    N d. The vessel shall sound three blasts on the whistle every 2 minutes.

388: BOTH INTERNATIONAL & INLAND Lighting requirements in inland waters are different from those in international waters for __________.

    N a. barges being pushed ahead
    N b. vessels being towed alongside
    N c. vessels pushing ahead
    Y d. All of the above

4015: BOTH INTERNATIONAL & INLAND A 95-meter vessel aground sounds which fog signal?

    N a. A rapid ringing of a bell for 5 seconds every two minutes
    N b. A whistle signal of one short, one prolonged, and one short blast
    N c. A prolonged blast of the whistle at intervals not to exceed one minute
    Y d. A rapid ringing of a bell for 5 seconds, preceded and followed by three separate and distinct strokes on the bell

4069: BOTH INTERNATIONAL & INLAND Which lights are shown by a vessel restricted in her ability to maneuver to indicate that the vessel is making way?

    Y a. Masthead lights, sidelights and stern light
    N b. Masthead lights and sidelights only
    N c. Sidelights and stern light only
    N d. Sidelights only

4105: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning two sailing vessels approaching each other?

    Y a. A sailing vessel overtaking another is the give-way vessel.
    N b. When each is on a different tack, the vessel on the starboard tack shall keep out of the way.
    N c. A sailing vessel seeing another to leeward on an undetermined tack shall hold her course.
    N d. All of the above

4188: BOTH INTERNATIONAL & INLAND You are at anchor in fog on a 120-meter power-driven vessel. You hear the fog signal of a vessel approaching off your port bow. You may sound __________.

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

4214: BOTH INTERNATIONAL & INLAND A sailing vessel of over 20 meters in length underway must show a __________.

    N a. red light over a green light at the masthead
    N b. white masthead light
    N c. combined lantern
    Y d. stern light

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.

4400: BOTH INTERNATIONAL & INLAND When action to avoid a close quarters situation is taken, a course change alone may be the most effective action provided that __________.

    N a. it is done in a succession of small course changes
    N b. it is NOT done too early
    Y c. it is a large course change
    N d. the course change is to starboard

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.

4550: BOTH INTERNATIONAL & INLAND Which statement concerning an overtaking situation is correct?

    N a. The overtaking vessel is the stand-on vessel.
    N b. Neither vessel is the stand-on vessel.
    N c. The overtaking vessel must maintain course and speed.
    Y d. The overtaking vessel must keep out of the way of the other.

4613: BOTH INTERNATIONAL & INLAND Working lights shall be used to illuminate the decks of a vessel __________.

    Y a. over 100 meters at anchor
    N b. not under command
    N c. constrained by her draft
    N d. Any of the above

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

4624: BOTH INTERNATIONAL & INLAND A vessel displaying the lights shown could be a vessel __________. (DIAGRAM 56 )

    N a. towing a barge alongside
    Y b. underway and laying cable
    N c. at anchor and dredging
    N d. underway and carrying dangerous cargo

4626: BOTH INTERNATIONAL & INLAND A vessel being towed astern, where the length of the tow exceeds 200 meters, will exhibit __________.

    N a. two balls in a vertical line
    Y b. a diamond shape where it can best be seen
    N c. a ball on each end of the tow
    N d. no day-shape

4627: BOTH INTERNATIONAL & INLAND While underway you sight a vessel displaying the day-shapes shown. You should __________. (DIAGRAM 6 )

    N a. contact the vessel on VHF radiotelephone
    N b. provide assistance, the other vessel is in distress
    Y c. stay clear, the other vessel cannot get out of the way
    N d. stop your vessel and sound passing signals

4857: BOTH INTERNATIONAL & INLAND A vessel approaching a narrow channel shall __________.

    Y a. avoid crossing the channel if it impedes another vessel navigating in the channel
    N b. not overtake any vessels within the channel
    N c. keep as close as possible to the edge of the channel on her port side
    N d. anchor only in the middle of the channel

5150: BOTH INTERNATIONAL & INLAND There are two classes of vessels which do not have to comply with the rule regarding traffic separation schemes, to the extent necessary to carry out their work. One of those is a vessel __________.

    N a. engaged in fishing
    N b. towing another
    Y c. servicing a navigational aid
    N d. on pilotage duty

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.

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