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.


107: INLAND ONLY A power-driven vessel intends to overtake another power-driven vessel on the overtaken vessel's port side. What whistle signal should be sounded in order to state this intention?


110: INLAND ONLY Which statement is TRUE concerning the fog signal of a sailing vessel 25 meters in length, anchored in a "special anchorage area" approved by the Secretary?


136: INLAND ONLY Yellow lights are NOT used to identify __________.


191: INLAND ONLY At night, you see the lights shown. They are shown on a __________. (DIAGRAM 75 )

    N a. bow of a barge being pushed ahead
    N b. stern of a barge being towed astern
    N c. masthead of a tug towing astern
    Y d. stern of a tug pushing ahead

238: BOTH INTERNATIONAL & INLAND Vessels "A" and "B" are meeting in a narrow channel as shown but are not in sight of one another due to restricted visibility. Which statement is TRUE concerning whistle signals between the vessels? (DIAGRAM 29 )

    N a. Both vessels should sound two short blasts.
    N b. Both vessels should sound one short blast.
    N c. Vessel "A" should sound one short blast and vessel "B" should sound two short blasts.
    Y d. None of the above statements is TRUE.

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

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

314: INLAND ONLY Identify the operation indicated by the lights shown. (DIAGRAM 85 )

    N a. An aircraft carrier engaged in the launching and recovery of aircraft
    N b. A submarine engaged in underway replenishment at sea
    Y c. A dredge engaged in dredging operations
    N d. A vessel aground assisted by tugs

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

4063: BOTH INTERNATIONAL & INLAND There are two classes of vessels which, to the extent necessary to carry out their work, do not have to comply with the rule regarding traffic separation schemes. One of these is a vessel __________.

    N a. engaged in fishing in a traffic lane
    Y b. servicing a submarine cable
    N c. towing another
    N d. engaged on pilotage duty

4107: BOTH INTERNATIONAL & INLAND A power-driven vessel has on her port side a sailing vessel which is on a collision course. The power-driven vessel is to __________.

    N a. maintain course and speed
    Y b. keep clear, passing at a safe distance
    N c. sound one blast and turn to starboard
    N d. stop her engines

4140: BOTH INTERNATIONAL & INLAND The rule regarding look-outs applies __________.

    N a. in restricted visibility
    N b. between dusk and dawn
    N c. in heavy traffic
    Y d. All of the above

4161: BOTH INTERNATIONAL & INLAND A continuous sounding of a fog-signal apparatus indicates __________.

    Y a. the vessel is in distress
    N b. the vessel has completed loading dangerous cargo
    N c. it is safe to pass
    N d. the vessel is anchored

4209: BOTH INTERNATIONAL & INLAND Which statement concerning maneuvering in restricted visibility is FALSE?

    N a. A vessel which cannot avoid a close-quarters situation with a vessel forward of her beam shall reduce her speed to bare steerageway.
    Y b. A vessel which hears a fog signal forward of her beam shall stop her engines.
    N c. A vessel which hears a fog signal forward of the beam shall navigate with caution.
    N d. If a vessel determines by radar that a close-quarters situation is developing, she shall take avoiding action in ample time.

4244: BOTH INTERNATIONAL & INLAND A 200-meter vessel restricted in her ability to maneuver, at anchor, will sound a fog signal of __________.

    N a. a 5 second ringing of a bell forward and a 5 second sounding of a gong aft at intervals of 1 minute
    Y b. one prolonged followed by two short blasts every 2 minutes
    N c. one prolonged followed by three short blasts every minute
    N d. one prolonged followed by three short blasts every 2 minutes

4285: BOTH INTERNATIONAL & INLAND While underway in fog you hear another vessel sounding two prolonged blasts every two minutes. This signal indicates a vessel __________.

    N a. making way through the water
    N b. towing
    Y c. drifting
    N d. anchored

4367: BOTH INTERNATIONAL & INLAND What would NOT be a distress signal?

    N a. "MAYDAY" sent by radiotelephone
    N b. Continuous sounding of fog horn
    Y c. Green star shells fired from a launcher
    N d. Square flag and ball in a vertical line

4404: BOTH INTERNATIONAL & INLAND A vessel towing astern in an operation which severely restricts the towing vessel and her tow in their ability to change course shall, when making way, exhibit __________.

    N a. the masthead lights for a towing vessel
    N b. the lights for a vessel restricted in its ability to maneuver
    N c. sidelights, stern light and towing light
    Y d. All of the above

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

4481: BOTH INTERNATIONAL & INLAND While underway in fog, you hear the rapid ringing of a bell for about five seconds followed by the sounding of a gong for about five seconds. This signal came from a __________.

    N a. vessel engaged in fishing at anchor
    N b. sailing vessel at anchor
    Y c. vessel 150 meters in length at anchor
    N d. vessel aground

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

4592: BOTH INTERNATIONAL & INLAND A proper look-out shall be maintained __________.

    N a. only at night
    N b. only during restricted visibility
    N c. at night and during restricted visibility
    Y d. at all times

4598: BOTH INTERNATIONAL & INLAND A vessel engaged in fishing while at anchor shall sound a fog signal of __________.

    Y a. one prolonged and two short blasts at two-minute intervals
    N b. one prolonged and three short blasts at two-minute intervals
    N c. a rapid ringing of the bell for five seconds at one-minute intervals
    N d. a sounding of the bell and gong at one-minute intervals

4644: BOTH INTERNATIONAL & INLAND A vessel engaged in trawling will show identification lights of __________.

    N a. a red light over a white light
    N b. a white light over a red light
    Y c. a green light over a white light
    N d. two red lights in a vertical line

4661: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning a towing vessel which, due to the nature of her work, is unable to keep out of the way of another vessel?

    N a. By day, she shall carry a black cylinder shape.
    N b. By day, she shall carry two black balls in a vertical line.
    N c. By night, she would show the same lights as a vessel not under command.
    Y d. By day, she would show the same shapes as a vessel restricted in her ability to maneuver.

4666: BOTH INTERNATIONAL & INLAND Which vessel must have a gong, or other equipment which will make the sound of a gong?

    N a. A sailing vessel
    N b. Any vessel over 50 meters
    N c. A power driven vessel over 75 meters
    Y d. Any vessel over 100 meters

4848: BOTH INTERNATIONAL & INLAND The Rules state that certain factors are to be taken into account when determining safe speed. One of the factors is the __________.

    N a. radio communications that are available
    N b. maximum speed of your vessel
    N c. temperature
    Y d. current

4869: BOTH INTERNATIONAL & INLAND Power-driven vessels must keep out of the way of sailing vessels except __________.

    N a. in a crossing situation
    N b. when they are making more speed than the power-driven vessel
    Y c. when the sailing vessel is overtaking
    N d. on the Inland Waters of the United States

4871: BOTH INTERNATIONAL & INLAND Your vessel is NOT making way, but is not in any way disabled. Another vessel is approaching you on your starboard beam. Which statement is TRUE?

    Y a. Your vessel is obligated to stay out of the way.
    N b. The other vessel must give way, since your vessel is stopped.
    N c. You should be showing the lights or shapes for a vessel not under command.
    N d. You should be showing the lights or shapes for a vessel restricted in her ability to maneuver.

5350: BOTH INTERNATIONAL & INLAND A vessel using a traffic separation scheme shall __________.

    Y a. avoid anchoring in areas near the termination of the scheme
    N b. avoid crossing traffic lanes, but if obliged to do so, shall cross on as small an angle as is practical
    N c. only anchor in the separation zone
    N d. use the separation zone for navigating through the scheme if she is hindering other traffic due to her slower speed

8061: INTERNATIONAL ONLY Vessel "A" is overtaking vessel "B" on open waters as shown and will pass without changing course. Vessel "A" __________. (DIAGRAM 17 )

    N a. should sound two short blasts
    N b. should sound the danger signal
    N c. should sound one long blast
    Y d. need not sound any whistle signals