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.


26: INLAND ONLY A law enforcement boat may display a __________.


186: BOTH INTERNATIONAL & INLAND You see the display of lights shown. It could be a __________. (DIAGRAM 54 )


240: BOTH INTERNATIONAL & INLAND Vessel "A" is overtaking vessel "B" as shown and will pass without changing course. Which light will vessel "A" observe on vessel "B"? (DIAGRAM 17 )


274: 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
    Y c. pass between the two sets of vertical red lights
    N d. proceed leaving all the lights on your starboard side

280: 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
    N b. flashing at intervals of 120 flashes per minute
    N c. more than 50 meters apart
    Y d. visible at night and during periods of restricted visibility

284: 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 aground
    N b. mine clearance vessel
    N c. vessel not under command
    Y d. dredge pipeline

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

4102: BOTH INTERNATIONAL & INLAND A distress signal __________.

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

4109: BOTH INTERNATIONAL & INLAND A vessel towing in fog shall sound a fog signal of __________.

    N a. one prolonged blast every one minute
    N b. two prolonged blasts every two minutes
    Y c. one prolonged and two short blasts every two minutes
    N d. one prolonged blast every two minutes

4120: BOTH INTERNATIONAL & INLAND A vessel engaged in fishing during the day would show __________.

    N a. one black ball
    N b. two cones with bases together
    N c. a cone, apex downward
    Y d. two cones, apexes together

4124: BOTH INTERNATIONAL & INLAND Vessel "A" is underway and pushing ahead when vessel "B" is sighted off the starboard bow as shown. Which vessel is the stand-on vessel? (DIAGRAM 28 )

    N a. Vessel "A" is the stand-on vessel because it is to port.
    N b. Vessel "A" is the stand-on vessel because it is pushing ahead.
    Y c. Vessel "B" is the stand-on vessel because it is to starboard of vessel "A".
    N d. Neither vessel is the stand-on vessel.

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

4215: BOTH INTERNATIONAL & INLAND An inconspicuous, partly submerged vessel or object being towed, where the length of tow is 100 meters, shall show __________.

    N a. yellow lights at each end
    N b. two red lights in a vertical line
    N c. a black ball
    Y d. a diamond shape

4253: BOTH INTERNATIONAL & INLAND A pilot vessel on pilotage duty shall show identity lights __________.

    N a. at any time while underway
    N b. while at anchor
    N c. while alongside a vessel
    Y d. All of the above

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

4269: BOTH INTERNATIONAL & INLAND All of the following are distress signals under the Rules EXCEPT __________.

    Y a. International Code Signal "AA"
    N b. orange-colored smoke
    N c. red flares
    N d. the repeated raising and lowering of outstretched arms

4337: BOTH INTERNATIONAL & INLAND A vessel showing a yellow light over a white light at night is a vessel __________.

    N a. engaged in piloting
    Y b. towing astern
    N c. engaged in fishing
    N d. in distress

4341: BOTH INTERNATIONAL & INLAND On open water, a vessel fishing is in a crossing situation with a vessel sailing located on the fishing vessel's starboard side. Which vessel is the stand-on vessel?

    N a. The fishing vessel because it is to port of the sailing vessel.
    Y b. The fishing vessel because it is fishing.
    N c. The sailing vessel because it is to starboard of the fishing vessel.
    N d. The sailing vessel because it is sailing.

4362: BOTH INTERNATIONAL & INLAND A vessel underway and fishing shall keep out of the way of a __________.

    N a. power-driven vessel underway
    Y b. vessel not under command
    N c. vessel sailing
    N d. vessel engaged on pilotage duty

4456: BOTH INTERNATIONAL & INLAND What is the required fog signal for a manned vessel being towed at night?

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

4461: BOTH INTERNATIONAL & INLAND During the day, a vessel with a tow over 200 meters in length will show __________.

    N a. a black ball
    Y b. a diamond shape
    N c. two cones, apexes together
    N d. one cone, apex upward

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

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

4834: BOTH INTERNATIONAL & INLAND To be considered "engaged in fishing" under the Rules, a vessel must be __________.

    N a. power-driven
    N b. showing lights or shapes for a vessel restricted in its ability to maneuver
    N c. using nets
    Y d. using fishing apparatus which restricts maneuverability

4870: BOTH INTERNATIONAL & INLAND When do the Rules require both vessels to change course?

    N a. Any time the danger signal is sounded
    N b. When two power-driven vessels are crossing and it is apparent to the stand-on vessel that the give-way vessel is not taking appropriate action
    Y c. When two power-driven vessels are meeting head-on
    N d. All of the above

8052: INTERNATIONAL ONLY Two power-driven vessels are meeting. A two blast whistle signal by either vessel means __________.

    N a. "I intend to alter course to port"
    N b. "I desire to pass starboard to starboard"
    N c. "I desire to pass port to port"
    Y d. "I am altering course to port"

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

8058: INTERNATIONAL ONLY Which vessel is to keep out of the way of the others?

    N a. A vessel constrained by her draft
    N b. A vessel engaged in underwater operations
    Y c. A vessel engaged in trawling
    N d. A vessel not under command

8084: INTERNATIONAL ONLY While underway at night, a power-driven vessel of less than 7 meters in length, whose maximum speed which does not exceed 7 knots, may show __________.

    N a. sidelights combined in a single lantern, only
    N b. an all-round flashing yellow light, only
    Y c. one all-round white light, only
    N d. a lantern showing a white light exhibited in sufficient time to prevent collision, only

8120: INTERNATIONAL ONLY A light used to signal passing intentions must be an __________.

    N a. all-round yellow light only
    Y b. all-round white light only
    N c. all-round blue light only
    N d. alternating red and yellow light