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.


17: INLAND ONLY A power-driven vessel crossing a river on the Western Rivers has the right of way over __________.


92: INLAND ONLY A power-driven vessel pushing ahead or towing alongside on the Mississippi River, below the Huey P. Long Bridge, shall carry __________.


98: INLAND ONLY You are aboard the stand-on vessel in a crossing situation. You sound a one blast whistle signal. The give-way vessel answers with a two blast whistle signal. You should sound the danger signal and __________.


225: INLAND ONLY A barge more than 50 meters long, at anchor in a "special anchorage area designated by the Secretary", is required to show how many white anchor lights?

    N a. One
    N b. None
    N c. One, on the near approach of another vessel
    Y d. Two

228: 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 __________.

    N a. law enforcement
    Y b. patrolling a regatta
    N c. hauling in pairs
    N d. river bank protection

247: INLAND ONLY You are on vessel "I" and in sight of vessel "II" as shown. Vessel "II" sounds one short blast. If you agree, you should __________. (DIAGRAM 36 )

    Y a. sound one short blast and hold course and speed
    N b. hold course and speed and sound no signal
    N c. sound one short blast and slow down or turn to starboard
    N d. sound the danger signal and slow to moderate speed

273: INLAND ONLY While underway you sight the lights shown with the yellow lights flashing, you should __________. (DIAGRAM 81 )

    N a. wait until the vessel ahead crosses your bow
    N b. stop until the red lights turn green
    N c. proceed leaving all the lights on your starboard side
    Y d. pass between the two sets of vertical red lights

318: BOTH INTERNATIONAL & INLAND Which dayshape(s) would be displayed by the vessel engaged in the operation indicated by the lights shown. (DIAGRAM 82 )

    Y a. two cones with apexes together
    N b. a ball, a diamond and another ball
    N c. a cylinder
    N d. a diamond

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

    N a. white masthead light
    N b. green sidelight
    N c. stern light
    Y d. None of the above

4031: BOTH INTERNATIONAL & INLAND Additional light signals are provided in the Annexes to the Rules for vessels __________.

    Y a. engaged in fishing
    N b. not under command
    N c. engaged in towing
    N d. under sail

4060: BOTH INTERNATIONAL & INLAND A vessel approaching your vessel from 235 relative is in what type of situation?

    N a. Meeting
    Y b. Overtaking
    N c. Crossing
    N d. Passing

4133: BOTH INTERNATIONAL & INLAND Which statement is TRUE when you are towing more than one barge astern at night?

    N a. Only the last barge in the tow must be lighted.
    N b. Only the first and last barges in the tow must be lighted.
    Y c. All barges in the tow must be lighted.
    N d. All barges, except unmanned barges, must be lighted.

4191: BOTH INTERNATIONAL & INLAND You are on watch in the fog. Your vessel is proceeding at a safe speed when you hear a fog signal ahead of you. The Rules require you to navigate with caution and, if danger of collision exists, __________.

    N a. slow to less than 2 knots
    N b. stop your engines
    Y c. reduce to bare steerageway
    N d. begin a radar plot

4195: BOTH INTERNATIONAL & INLAND All of the following vessels are "restricted in their ability to maneuver" EXCEPT a vessel __________.

    N a. laying a pipeline
    N b. dredging
    N c. mineclearing
    Y d. not under command

4393: BOTH INTERNATIONAL & INLAND Which light(s) is(are) AMONG those shown by a 200-meter vessel at anchor?

    N a. In the forepart of the vessel, a 225 white light
    N b. In the after part of the vessel, a 135 white light
    Y c. Any available working lights to illuminate the decks
    N d. In the fore part of the vessel, a 135 white light

4413: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning a 75-meter power-driven vessel underway at night?

    N a. She must exhibit an all-round white light at the stern.
    Y b. She must exhibit forward and after masthead lights.
    N c. She must exhibit only a forward masthead light.
    N d. She may exhibit a red light over a green light forward.

4467: BOTH INTERNATIONAL & INLAND Under the Rules, the term "vessel" includes __________.

    N a. non-self-propelled raft
    N b. seaplanes
    N c. hovercrafts
    Y d. All of the above

4506: BOTH INTERNATIONAL & INLAND A lantern combining the sidelights and stern light MAY be shown on a __________.

    N a. sailing vessel of 25 meters in length
    N b. 20-meter vessel engaged in fishing and making way
    N c. 25-meter power-driven vessel engaged in trolling
    Y d. 6-meter vessel under oars

4525: BOTH INTERNATIONAL & INLAND Sailing vessels are stand-on over power-driven vessels except __________.

    N a. in a crossing situation
    N b. in a meeting situation
    Y c. when they are the overtaking vessel
    N d. on the inland waters of the U.S.

4534: BOTH INTERNATIONAL & INLAND A vessel towing where the tow prevents her from changing course shall carry __________.

    N a. only the lights for a vessel towing
    N b. only the lights for a vessel restricted in her ability to maneuver
    Y c. the lights for a towing vessel and the lights for a vessel restricted in her ability to maneuver
    N d. the lights for a towing vessel and the lights for a vessel not under command

4555: BOTH INTERNATIONAL & INLAND A sailing vessel is proceeding along a narrow channel and can safely navigate ONLY inside the channel. The sailing vessel approaches a vessel engaged in fishing. Which statement is TRUE?

    Y a. The fishing vessel is directed not to impede the passage of the sailing vessel.
    N b. The sailing vessel must keep out of the way of the fishing vessel.
    N c. Each vessel should move to the edge of the channel on her port side.
    N d. Each vessel should be displaying signals for a vessel constrained by her draft.

4571: BOTH INTERNATIONAL & INLAND Risk of collision is considered to exist if __________.

    N a. four vessels are nearby
    N b. a vessel has a steady bearing at a constant range
    Y c. there is any doubt that a risk of collision exists
    N d. a special circumstance situation is apparent

4586: BOTH INTERNATIONAL & INLAND What describes a head-on situation?

    N a. Seeing one red light of a vessel directly ahead
    N b. Seeing two forward white towing lights in a vertical line on a towing vessel directly ahead
    N c. Seeing both sidelights of a vessel directly off your starboard beam
    Y d. Seeing both sidelights of a vessel directly ahead

4591: BOTH INTERNATIONAL & INLAND A vessel using a traffic separation scheme shall __________.

    N a. only anchor in the separation zone
    N b. cross a traffic lane at as small an angle as possible
    Y c. avoid anchoring in areas near the termination of the scheme
    N d. utilize the separation zone for navigating through the scheme if she is impeding other traffic due to her slower speed

4595: BOTH INTERNATIONAL & INLAND Which vessel, when anchored at night, would NOT be required to show anchor lights?

    N a. A power-driven vessel
    N b. A vessel on pilotage duty
    Y c. A vessel dredging
    N d. A vessel restricted in her ability to maneuver

4639: BOTH INTERNATIONAL & INLAND At night you sight a vessel displaying a single green light. This is a __________.

    N a. vessel at anchor
    N b. small motorboat underway
    N c. vessel drifting
    Y d. sailing vessel

4667: BOTH INTERNATIONAL & INLAND While underway and in sight of another vessel, less than one half mile away, you put your engines on astern propulsion. Which statement concerning whistle signals is TRUE?

    N a. You need not sound any whistle signals.
    N b. You must sound one blast if backing to starboard.
    N c. You must sound whistle signals only if the vessels are meeting.
    Y d. You must sound three short blasts on the whistle.

4676: BOTH INTERNATIONAL & INLAND You are underway in a narrow channel and are being overtaken by a vessel astern. The overtaking vessel sounds a signal indicating her intention to pass you on your starboard side. If such an action appears dangerous, you should sound __________.

    N a. one prolonged followed by one short blast
    N b. one prolonged, one short, one prolonged, and one short blast in that order
    Y c. five short and rapid blasts
    N d. three short and rapid blasts

4733: BOTH INTERNATIONAL & INLAND A distress signal __________.

    N a. consists of 5 or more short blasts of the fog signal apparatus
    N b. consists of the raising and lowering of a large white flag
    Y c. may be used separately or with other distress signals
    N d. is used to indicate doubt about another vessel's intentions

8073: INTERNATIONAL ONLY In a narrow channel, an overtaking vessel which intends to PASS on the other vessel's port side would sound __________.

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