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.


61: INLAND ONLY Your power-driven vessel is overtaking another power-driven vessel in a narrow channel. You wish to overtake her on her starboard side. You should sound a whistle signal of __________.


64: INLAND ONLY At night, which lights are required on barges moored in a group formation more than two barges wide?


124: INLAND ONLY Which term is NOT defined in the Inland Navigation Rules?


150: INLAND ONLY A power-driven vessel, when leaving a dock or berth, must sound what signal?

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

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

4020: BOTH INTERNATIONAL & INLAND A vessel must proceed at a safe speed __________.

    N a. in restricted visibility
    N b. in congested waters
    N c. during darkness
    Y d. at all times

4032: BOTH INTERNATIONAL & INLAND Which vessel may combine her sidelights and stern light in one lantern on the fore and aft centerline of the vessel?

    Y a. A 16-meter sailing vessel
    N b. A 25-meter power-driven vessel
    N c. A 28-meter sailing vessel
    N d. Any non-self-propelled vessel

4104: BOTH INTERNATIONAL & INLAND A vessel is "in sight" of another vessel when __________.

    N a. she can be observed by radar
    Y b. she can be observed visually from the other vessel
    N c. she can be plotted on radar well enough to determine her heading
    N d. her fog signal can be heard

4108: BOTH INTERNATIONAL & INLAND At specified intervals, a vessel towing in fog shall sound __________.

    N a. one prolonged blast
    N b. two prolonged blasts
    Y c. one prolonged and two short blasts in succession
    N d. one prolonged and three short blasts in succession

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

4194: BOTH INTERNATIONAL & INLAND At night, you are towing a partly submerged vessel, 20 meters in length and 4 meters in breadth. What lights must you display on the towed vessel?

    N a. A white light at the stern
    N b. Two white lights side by side at the stern
    Y c. A white light at the forward end and a white light at the after end
    N d. Two red lights in a vertical line at the after end

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.

4239: BOTH INTERNATIONAL & INLAND You are on a vessel nearing a bend in the channel where, because of the height of the bank, you cannot see a vessel approaching from the opposite direction. You should sound __________.

    N a. one short blast
    Y b. one prolonged blast
    N c. one long blast
    N d. five or more short blasts

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

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

4374: BOTH INTERNATIONAL & INLAND A vessel aground would show the same day-shape as a __________.

    N a. vessel towing a submerged object
    N b. dredge underway and dredging
    N c. hydrographic survey vessel at anchor and surveying
    Y d. None of the above

4429: BOTH INTERNATIONAL & INLAND Two vessels are meeting head-on. How must the vessels pass?

    N a. One vessel must alter course while the other must continue on its course.
    N b. The vessels should determine which will alter course by sounding whistle signals.
    N c. Both vessels should alter course to port and pass starboard to starboard.
    Y d. Both vessels should alter course to starboard and pass port to port.

4475: BOTH INTERNATIONAL & INLAND A self-propelled dredge not engaged in dredging but proceeding to a dredging location at night would __________.

    N a. not be required to show any lights
    N b. be required to show the lights characteristic of a dredge
    N c. be required to show the lights of a stationary dredge
    Y d. be required to show the lights of a power-driven vessel underway

4531: BOTH INTERNATIONAL & INLAND Your vessel enters fog. You stop your engines, and the vessel is dead in the water. Which fog signal should you sound?

    N a. One prolonged blast every two minutes
    Y b. Two prolonged blasts every two minutes
    N c. Three short blasts every two minutes
    N d. One prolonged and two short blasts every two minutes

4597: BOTH INTERNATIONAL & INLAND A vessel not under command shall display __________.

    Y a. two red lights at night and two black balls during daylight
    N b. two red lights at night and three black balls during daylight
    N c. three red lights at night and two black balls during daylight
    N d. three red lights at night and three black balls during daylight

4659: BOTH INTERNATIONAL & INLAND A vessel servicing a pipeline during the day shall display __________.

    Y a. three black shapes in a vertical line; the highest and lowest are balls, and the middle one is a diamond
    N b. three shapes in a vertical line; the highest and lowest are red balls, and the middle one is a white diamond
    N c. three black balls in a vertical line
    N d. two black balls in a vertical line

4705: BOTH INTERNATIONAL & INLAND In complying with the Rules, of what must the mariner take due regard?

    N a. Limited backing power of his vessel
    N b. Radar information about nearby vessels
    N c. The occupation of the other vessel, if known
    Y d. All of the above

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

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

4875: BOTH INTERNATIONAL & INLAND In restricted visibility, a vessel being towed, if manned, shall sound a signal of __________.

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

5200: BOTH INTERNATIONAL & INLAND In a traffic separation scheme, when joining a traffic lane from the side, a vessel shall do so __________.

    N a. only in case of an emergency or to engage in fishing within the zone
    N b. as nearly as practical at right angles to the general direction of traffic flow
    Y c. at as small an angle as possible
    N d. only to anchor within the zone

8023: BOTH INTERNATIONAL & INLAND A fishing vessel is approaching a vessel not under command. Which statement is TRUE?

    Y a. The fishing vessel must keep clear of the vessel not under command.
    N b. If the vessel not under command is a power-driven vessel, she must keep clear of the fishing vessel.
    N c. They must exchange whistle signals.
    N d. Both vessels are required to take action to stay clear of each other.

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

8090: BOTH INTERNATIONAL & INLAND A towing light is ____________ .

    N a. shown below the stern light
    N b. white in color
    N c. displayed at the masthead
    Y d. a yellow light having the same characteristics as the stern light