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.


3: INLAND ONLY In a narrow channel, you are underway on vessel "A" and desire to overtake vessel "B". After you sound two short blasts on your whistle, vessel "B" sounds five short and rapid blasts on the whistle. You should __________.


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


106: INLAND ONLY You are overtaking another power-driven vessel and sound a whistle signal indicating that you intend to pass the vessel along her starboard side. If the other vessel answers your signal with five short and rapid blasts, you should __________.


109: BOTH INTERNATIONAL & INLAND Vessel "A" is overtaking vessel "B" as shown. Vessel "B" is an air-cushion vessel operating in the nondisplacement mode. In addition to a steady white light which other light will vessel "A" observe on vessel "B"? (DIAGRAM 17 )

    N a. Steady green light
    N b. Flashing red light
    Y c. Flashing yellow light
    N d. Flashing white light

188: INTERNATIONAL ONLY Yellow lights are NOT shown by __________.

    Y a. towing vessels pushing ahead
    N b. air cushion vessels in a nondisplacement mode
    N c. purse seiners
    N d. U.S. submarines

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

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

289: BOTH INTERNATIONAL & INLAND The tow shown is less than 200 meters in length and severely restricted in her ability to deviate from her course. Which dayshape(s) would be displayed by day from the vessel? (DIAGRAM 24 )

    Y a. ball-diamond-ball on the towing vessel
    N b. diamond on the towing vessel
    N c. diamond on the last barge
    N d. None of the above

315: BOTH INTERNATIONAL & INLAND At night a vessel displaying the lights as shown is __________. (DIAGRAM 82 )

    Y a. fishing
    N b. sailing
    N c. a pilot boat
    N d. anchored

4082: BOTH INTERNATIONAL & INLAND Which vessel must exhibit three white masthead lights in a vertical line?

    N a. Any vessel towing astern
    Y b. A vessel whose tow exceeds 200 meters astern
    N c. A vessel not under command, at anchor
    N d. A vessel being towed

4173: BOTH INTERNATIONAL & INLAND A power-driven vessel underway shall keep out of the way of a vessel __________.

    N a. not under command
    N b. restricted in her ability to maneuver
    N c. engaged in fishing
    Y d. All of the above

4202: BOTH INTERNATIONAL & INLAND You are underway in fog when you hear the following signal: one short blast, one prolonged blast and one short blast in succession. Which of the following would it be?

    N a. A sailing vessel underway with the wind abaft the beam
    N b. A power-driven vessel underway and making way through the water
    Y c. A vessel at anchor
    N d. A vessel towing

4254: BOTH INTERNATIONAL & INLAND You are underway in restricted visibility and hear a fog signal forward of the beam. Nothing appears on your radar screen. You must __________.

    N a. stop your engines
    N b. sound two prolonged blasts of the whistle
    N c. sound the danger signal
    Y d. slow to bare steerageway

4277: BOTH INTERNATIONAL & INLAND You are underway in a fog when you hear a whistle signal of one prolonged blast followed by two short blasts. This signal could indicate all of the following EXCEPT a vessel __________.

    Y a. being towed
    N b. not under command
    N c. fishing with trawls
    N d. towing astern

4295: BOTH INTERNATIONAL & INLAND The use of the danger signal __________.

    N a. replaces directional signals
    N b. makes the other vessel the stand-on vessel
    Y c. indicates doubt as to another vessels actions
    N d. is the same as a "MAYDAY" signal

4312: BOTH INTERNATIONAL & INLAND A power-driven vessel "not under command" at night must show which lights in a vertical line?

    N a. Three red
    Y b. Two red
    N c. Two white
    N d. Three white

4349: BOTH INTERNATIONAL & INLAND If a vessel is engaged in fishing according to the definitions in the Rules, it will have __________.

    N a. gear extending from the side or stern
    Y b. gear that restricts maneuverability
    N c. less than 50 percent trolling lines
    N d. None of the above

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

4422: BOTH INTERNATIONAL & INLAND Each prolonged blast on whistle signals used by a power-driven vessel in fog, whether making way or underway but not making way, is __________.

    N a. about one second
    N b. two to four seconds
    Y c. four to six seconds
    N d. eight to ten seconds

4444: BOTH INTERNATIONAL & INLAND Which vessel must exhibit a conical shape, apex downwards?

    N a. A 10-meter vessel engaged in fishing
    Y b. A 15-meter vessel proceeding under sail when also being propelled by machinery
    N c. A 20-meter vessel restricted in her ability to maneuver
    N d. All of the above

4503: BOTH INTERNATIONAL & INLAND Which vessel must show a masthead light abaft of and higher than her identifying lights?

    N a. A 55-meter vessel fishing
    Y b. A 55-meter vessel trawling
    N c. A 100-meter vessel not under command
    N d. A 20-meter vessel engaged on pilotage duty

4568: BOTH INTERNATIONAL & INLAND Which vessel is "underway" according to the Rules?

    N a. A vessel made fast to a single point mooring buoy
    Y b. A purse seiner hauling her nets
    N c. A pilot vessel at anchor
    N d. A vessel which has run aground

4568: BOTH INTERNATIONAL & INLAND Which vessel is "underway" according to the Rules?

    N a. A vessel made fast to a single point mooring buoy
    Y b. A purse seiner hauling her nets
    N c. A pilot vessel at anchor
    N d. A vessel which has run aground

4590: BOTH INTERNATIONAL & INLAND A vessel being towed, if manned, shall sound a fog signal of __________.

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

4634: BOTH INTERNATIONAL & INLAND Your tug is underway at night and NOT towing. What light(s) should your vessel show aft to other vessels coming up from astern?

    Y a. One white light
    N b. Two white lights
    N c. One white light and one yellow light
    N d. One white light and two yellow lights

4641: BOTH INTERNATIONAL & INLAND Which vessel must exhibit forward and after white masthead lights when making way?

    Y a. A 75-meter vessel restricted in her ability to maneuver
    N b. A 100-meter sailing vessel
    N c. A 150-meter vessel engaged in fishing
    N d. A 45-meter vessel engaged in towing

4687: BOTH INTERNATIONAL & INLAND A vessel engaged in fishing while at anchor shall sound a fog signal of __________.

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

4709: BOTH INTERNATIONAL & INLAND At night, a vessel displaying the lights shown is __________. (DIAGRAM 52 )

    N a. aground
    Y b. underway
    N c. at anchor
    N d. transferring dangerous cargo

4731: BOTH INTERNATIONAL & INLAND Additional light signals are provided in the Annexes to the Rules for vessels __________.

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

5400: BOTH INTERNATIONAL & INLAND A vessel using a traffic separation scheme shall NOT __________.

    N a. cross a traffic lane
    N b. engage in fishing the separation zone
    Y c. proceed in an inappropriate traffic lane
    N d. enter the separation zone

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