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.


83: INLAND ONLY If your tug is pushing a barge ahead at night and it is not a composite unit, which light(s) should show aft on your vessel?


113: INLAND ONLY At night, a barge moored in a slip used primarily for mooring purposes shall __________.


120: INLAND ONLY What shall be used to indicate the presence of a partly submerged object being towed?


133: INLAND ONLY A power-driven vessel operating in a narrow channel with a following current on the Great Lakes or Western Rivers is meeting an upbound vessel. Which statement is TRUE?

    Y a. The downbound vessel has the right of way.
    N b. The upbound vessel must initiate the required maneuvering signals.
    N c. The upbound vessel must propose the manner of passing.
    N d. All of the above

165: BOTH INTERNATIONAL & INLAND You are on a vessel heading due south and see the lights shown one point on your port bow. This vessel could be heading __________. (DIAGRAM 51 )

    N a. SE
    N b. NE
    N c. SW
    Y d. NW

200: INLAND ONLY A partially submerged object towed by a vessel must show during the day one __________.

    Y a. diamond shape regardless of length of the tow
    N b. diamond shape only when the length of the tow exceeds 200 meters in length
    N c. black ball
    N d. black ball only when the length of the tow exceeds 200 meters in length

227: INLAND ONLY A commercial vessel engaged in public safety activities may display a(n) __________.

    Y a. alternately flashing red and yellow light
    N b. flashing blue light
    N c. flashing yellow light
    N d. alternately flashing blue and red light

248: BOTH INTERNATIONAL & INLAND Vessels "I" and "II" are power-driven vessels. You are on vessel "I" as shown. You are the __________. (DIAGRAM 36 )

    N a. give-way vessel
    Y b. stand-on vessel
    N c. overtaking vessel
    N d. None of the above

299: BOTH INTERNATIONAL & INLAND A vessel displaying the lights shown is a(n) __________. (DIAGRAM 79 )

    Y a. vessel towing astern
    N b. vessel restricted in her ability to maneuver
    N c. vessel not under command
    N d. vessel aground

353: INTERNATIONAL ONLY Two power-driven vessels are crossing within one half mile of each other as shown. Vessel "A" sounds one short blast of the whistle. This signal means __________. (DIAGRAM 42 )

    N a. "I intend to overtake you on your starboard side"
    N b. "I am operating astern propulsion"
    N c. "I intend to leave you on my port side"
    Y d. None of the above

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

4007: BOTH INTERNATIONAL & INLAND If you do NOT understand the course or intention of an approaching vessel you should sound __________.

    N a. one short blast
    N b. one prolonged blast
    Y c. not less than five short blasts
    N d. not less than five prolonged blasts

4008: BOTH INTERNATIONAL & INLAND If you are the stand-on vessel in a crossing situation, you may take action to avoid collision by your maneuver alone. When may this action be taken?

    N a. At any time you feel it is appropriate
    N b. Only when you have reached extremis
    N c. When you determine that your present course will cross ahead of the other vessel
    Y d. When it becomes apparent to you that the give-way vessel is not taking appropriate action

4068: BOTH INTERNATIONAL & INLAND In the situation illustrated, vessel I is a power-driven vessel. Vessel II is a sailing vessel with the wind dead aft. Which statement about this situation is correct? (DIAGRAM 2 )

    Y a. Vessel I should keep out of the way of Vessel II.
    N b. Vessel II should keep out of the way of Vessel I.
    N c. Vessel II would normally be the stand-on vessel, but should stay out of the way in this particular situation.
    N d. The Rules of Special Circumstances applies, and neither vessel is the stand-on vessel.

4076: BOTH INTERNATIONAL & INLAND If a rowboat underway does NOT show the lights specified for a sailing vessel underway, it shall show a __________.

    N a. white light from sunset to sunrise
    N b. combined lantern showing green to starboard and red to port and shown from sunset to sunrise
    N c. combined lantern showing green to starboard and red to port and shown in sufficient time to prevent collision
    Y d. white light shown in sufficient time to prevent collision

4114: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning the light used with whistle signals?

    N a. Use of such a light is required.
    N b. The light shall have the same characteristics as a masthead light.
    Y c. It is only used to supplement short blasts of the whistle.
    N d. All of the above

4157: BOTH INTERNATIONAL & INLAND Which vessel may exhibit identifying lights when not actually engaged in her occupation?

    N a. A trawler
    N b. A fishing vessel
    N c. A tug
    Y d. None of the above

4175: BOTH INTERNATIONAL & INLAND A vessel displaying the lights shown is __________. (DIAGRAM 57 )

    Y a. restricted in her ability to maneuver and not making way
    N b. engaged in fishing and not making way
    N c. a pilot vessel underway and making way on pilotage duty
    N d. towing and making way

4242: BOTH INTERNATIONAL & INLAND All fog signals shall be sounded every two minutes with the exception of a vessel __________.

    N a. underway or making way
    N b. under sail or under tow
    Y c. anchored or aground
    N d. not under command or restricted in her ability to maneuver

4279: BOTH INTERNATIONAL & INLAND You are watching another vessel approach and her compass bearing is not changing. This means that __________.

    N a. you are the stand-on vessel
    Y b. a risk of collision exists
    N c. a special circumstances situation exists
    N d. the other vessel is dead in the water

4344: BOTH INTERNATIONAL & INLAND "safe speed" is defined as that speed where __________.

    N a. you can stop within your visibility range
    Y b. you can take proper and effective action to avoid collision
    N c. you are traveling slower than surrounding vessels
    N d. no wake comes from your vessel

4451: BOTH INTERNATIONAL & INLAND Every vessel should at all times proceed at a "safe speed". "Safe speed" is defined as that speed where __________.

    N a. you can stop within your visibility range
    Y b. you can take proper and effective action to avoid collision
    N c. you are traveling slower than surrounding vessels
    N d. no wake comes from your vessel

4490: BOTH INTERNATIONAL & INLAND Which vessel would be required to show a white light from a lantern exhibited in sufficient time to prevent collision?

    N a. A 9-meter sailing vessel
    Y b. A rowboat
    N c. A 6-meter motorboat
    N d. A small vessel fishing

4491: BOTH INTERNATIONAL & INLAND Barges being towed at night __________.

    Y a. must be lighted at all times
    N b. must be lighted only if manned
    N c. must be lighted only if towed astern
    N d. need not be lighted

4558: BOTH INTERNATIONAL & INLAND The stern light shall be positioned such that it will show from dead astern to how many degrees on each side of the stern of the vessel?

    N a. 22.5°
    Y b. 67.5°
    N c. 112.5°
    N d. 135.0°

4623: BOTH INTERNATIONAL & INLAND A towing vessel 35 meters in length, with a tow 100 meters astern, must show a minimum of how many masthead lights?

    N a. 1
    Y b. 2
    N c. 3
    N d. 4

4675: BOTH INTERNATIONAL & INLAND In a meeting situation, which vessel may sound the danger signal?

    N a. Stand-on vessel
    N b. Give-way vessel
    Y c. Either vessel
    N d. Neither vessel

4682: BOTH INTERNATIONAL & INLAND A vessel may exhibit lights other than those prescribed by the Rules as long as the additional lights __________.

    N a. do not interfere with the keeping of a proper look-out
    N b. do not impair the visibility or distinctive character of the prescribed lights
    N c. cannot be mistaken for the lights specified elsewhere in the Rules
    Y d. All of the above

4717: BOTH INTERNATIONAL & INLAND A sailing vessel underway at night MAY show __________.

    N a. a green light over a red light
    N b. a red light over a white light
    N c. two white lights at the stern
    Y d. None of the above

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