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.


5: INLAND ONLY You are overtaking a power-driven vessel in a narrow channel and wish to leave her on your starboard side. You may __________.


51: INLAND ONLY Which statement is TRUE concerning the Inland Navigation Rules?


66: INLAND ONLY A towing vessel pushing ahead on the Western Rivers above the Huey P. Long bridge must show __________.


140: INLAND ONLY You are the stand-on vessel in a crossing situation. The other vessel is showing an alternating red and yellow light. Which action should you take?

    Y a. Stand on.
    N b. Heave to.
    N c. Alter course to assist.
    N d. Yield the right-of-way.

231: BOTH INTERNATIONAL & INLAND Vessel "A" is overtaking vessel "B" as shown. Vessel "B" is the __________. (DIAGRAM 17 )

    N a. give-way vessel
    Y b. vessel being overtaken
    N c. passing vessel
    N d. None of the above

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

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

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

396: BOTH INTERNATIONAL & INLAND You see ONLY the light shown. This could be a __________. (DIAGRAM 80 )

    N a. vessel aground
    N b. submarine on the surface
    N c. vessel engaged in trawling
    Y d. vessel under oars

4000: BOTH INTERNATIONAL & INLAND Your vessel is 75 meters in length and restricted in her ability to maneuver. Visibility is restricted. What signal do you sound if you are carrying out your work at anchor?

    N a. Five seconds ringing of a bell at intervals of not more than one minute
    Y b. One prolonged blast followed by two short blasts on the whistle at intervals of not more than two minutes
    N c. Five seconds ringing of a bell and five second sounding of a gong at intervals of not more than one minute
    N d. Four short blasts on the whistle at intervals of not more than two minutes

4012: BOTH INTERNATIONAL & INLAND A vessel which displays the day signal shown may be engaged in __________. (DIAGRAM 6 )

    Y a. submarine cable laying
    N b. pilotage duty
    N c. fishing
    N d. mineclearance

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

4240: BOTH INTERNATIONAL & INLAND Systems of inbound and outbound lanes to promote the safe flow of vessel traffic in certain areas around the world are known as __________.

    N a. merchant vessel reporting systems
    Y b. traffic separation schemes
    N c. collision avoidance fairways
    N d. restricted maneuverability channels

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

4262: BOTH INTERNATIONAL & INLAND A vessel not under command making way at night would show __________.

    N a. two all-round red lights in a vertical line
    N b. anchor lights and sidelights
    N c. two all-round white lights in a vertical line, sidelights and a stern light
    Y d. two all-round red lights in a vertical line, sidelights, and a stern light

4267: BOTH INTERNATIONAL & INLAND You are overtaking a vessel at night and you see a yellow light showing above the stern light of the overtaken vessel. The overtaken vessel is __________.

    N a. underway and dredging
    N b. pushing ahead or towing alongside
    Y c. towing astern
    N d. a pilot vessel

4276: BOTH INTERNATIONAL & INLAND While underway 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 three short blasts every two minutes

4350: BOTH INTERNATIONAL & INLAND While underway in fog you hear the rapid ringing of a bell. What does this signal indicate?

    N a. A vessel backing down
    N b. A sailboat underway
    Y c. A vessel at anchor
    N d. A vessel drifting

4418: BOTH INTERNATIONAL & INLAND When two vessels are in immediate danger of collision, the stand-on vessel must __________.

    N a. abandon ship
    Y b. assist in taking whatever action is necessary to avoid collision
    N c. hold course and speed
    N d. sound a distress signal

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

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

4541: BOTH INTERNATIONAL & INLAND The Rules state that vessels may depart from the Rules when __________.

    N a. there are no other vessels around
    N b. operating in a narrow channel
    N c. the Master enters it in the ship's log
    Y d. necessary to avoid immediate danger

4681: BOTH INTERNATIONAL & INLAND A vessel may exhibit lights other than those prescribed by the Rules as long as the additional lights __________.

    N a. are not the same color as either side light
    N b. have a lesser range of visibility than the prescribed lights
    Y c. do not impair the visibility or distinctive character of the prescribed lights
    N d. All of the above

4699: BOTH INTERNATIONAL & INLAND What is the identity signal which may be sounded by a vessel engaged on pilotage duty in fog?

    N a. 2 short blasts
    N b. 3 short blasts
    Y c. 4 short blasts
    N d. 5 short blasts

4725: BOTH INTERNATIONAL & INLAND What is the minimum sound signaling equipment required aboard a vessel 24 meters in length?

    N a. Any means of making an efficient sound signal
    N b. A bell only
    N c. A whistle only
    Y d. A bell and a whistle

4829: BOTH INTERNATIONAL & INLAND The term "restricted visibility", when used in the Rules, refers to __________.

    N a. situations when you can see vessels on radar that you cannot see visually
    N b. visibility of less than half a mile
    Y c. any condition where visibility is restricted
    N d. visibility where you cannot see shore

4855: BOTH INTERNATIONAL & INLAND Under the Rules, any vessel may slacken her speed, stop, or reverse her engines to __________.

    N a. create a crossing situation
    Y b. allow more time to assess the situation
    N c. attract the attention of another vessel
    N d. All of the above

4865: BOTH INTERNATIONAL & INLAND Your 15-meter vessel is crossing a narrow channel and a large cargo vessel to starboard is within the channel and crossing your course. You should __________.

    N a. hold your course and speed
    N b. sound the danger signal
    Y c. keep out of the way of the cargo vessel
    N d. do not cross the channel

8020: INTERNATIONAL ONLY A vessel not under command sounds the same fog signal as a vessel __________.

    N a. towing
    N b. constrained by her draft
    N c. under sail
    Y d. All of the above

8092: INTERNATIONAL ONLY A light used to signal passing intentions must be an __________.

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

8098: INTERNATIONAL ONLY If at night a vessel displays three all-round red lights in a vertical line, during the day she may show __________.

    N a. two cones, base to base
    N b. three black balls in a vertical line
    Y c. a cylinder
    N d. a cone, apex downward