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.


17: INLAND ONLY A power-driven vessel crossing a river on the Western Rivers has the right of way over __________.


53: INLAND ONLY You are on vessel "A" and vessel "B" desires to overtake you on the starboard side as shown. After the vessels have exchanged one blast signals you should __________. (DIAGRAM 38 )


100: INLAND ONLY Only law enforcement vessels are permitted to show __________.


115: INLAND ONLY What is true of a "special flashing light"?

    Y a. It may show through an arc of 180°.
    N b. It flashes at the rate of 120 flashes per minute.
    N c. It is optional below the Baton Rouge Highway Bridge.
    N d. All of the above

127: INLAND ONLY You are on board the stand-on vessel in a crossing situation. You sound a one blast whistle signal, and the give-way vessel answers with a two-blast signal. You should then sound the danger signal and __________.

    N a. maintain course and speed
    N b. come around sharply to port
    N c. maneuver around the stern of the other vessel
    Y d. stop and back your vessel if necessary until signals are agreed upon

183: BOTH INTERNATIONAL & INLAND Which vessel must show an after masthead light, if over 50 meters in length?

    N a. A vessel engaged in fishing
    N b. A vessel at anchor
    N c. A vessel not under command
    Y d. A vessel trawling

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 )

    N a. yellow towing light
    Y b. white stern light
    N c. green sidelight
    N d. None of the above

256: INTERNATIONAL ONLY Vessels "A" and "B" are meeting on a river as shown and will pass 1/4 mile apart. If you are on vessel "A", in addition to the sidelight, which other light(s) will you see on vessel "B"? (DIAGRAM 41 )

    N a. special flashing yellow light
    Y b. two white masthead lights in a vertical line
    N c. two yellow towing lights
    N d. None of the above

260: INLAND ONLY A vessel engaged in public safety activities may display an alternately flashing red and yellow light. This special light may be used by a vessel engaged in __________.

    Y a. search and rescue
    N b. restricted in ability to maneuver
    N c. not under command
    N d. river bank protection

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

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

4010: BOTH INTERNATIONAL & INLAND If your vessel is underway in fog and you hear one prolonged and three short blasts, this is a __________.

    N a. vessel not under command
    N b. sailing vessel
    Y c. vessel being towed (manned)
    N d. vessel being towed (unmanned)

4050: BOTH INTERNATIONAL & INLAND A 22-meter sailing vessel when also being propelled by machinery shall show during daylight hours a __________.

    N a. black diamond
    Y b. black cone
    N c. black ball
    N d. basket

4105: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning two sailing vessels approaching each other?

    Y a. A sailing vessel overtaking another is the give-way vessel.
    N b. When each is on a different tack, the vessel on the starboard tack shall keep out of the way.
    N c. A sailing vessel seeing another to leeward on an undetermined tack shall hold her course.
    N d. All of the above

4133: BOTH INTERNATIONAL & INLAND Which statement is TRUE when you are towing more than one barge astern at night?

    N a. Only the last barge in the tow must be lighted.
    N b. Only the first and last barges in the tow must be lighted.
    Y c. All barges in the tow must be lighted.
    N d. All barges, except unmanned barges, must be lighted.

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

4174: BOTH INTERNATIONAL & INLAND A vessel sounding a fog signal of one short, one prolonged, and one short blast is indicating that the vessel is __________.

    N a. fishing
    N b. in distress
    Y c. at anchor
    N d. not under command

4273: BOTH INTERNATIONAL & INLAND Which vessel is NOT classified as "restricted in her ability to maneuver"?

    N a. A vessel picking up a navigation mark
    N b. A vessel transferring cargo while underway
    Y c. A vessel whose anchor is fouled
    N d. A vessel in a towing operation that restricts the ability of the vessel and her tow to change their course

4390: BOTH INTERNATIONAL & INLAND What lights must sailboats show when underway at night?

    N a. One all-round white light
    N b. A stern light
    N c. Red and green sidelights
    Y d. Red and green sidelights and a stern light

4397: BOTH INTERNATIONAL & INLAND In a crossing situation, a vessel fishing must keep out of the way of a vessel which is __________.

    N a. under sail
    N b. towing
    Y c. restricted in her ability to maneuver
    N d. engaged in pilotage duty

4435: BOTH INTERNATIONAL & INLAND Which procedure(s) shall be used to determine risk of collision?

    N a. Watching the compass bearing of an approaching vessel
    N b. Systematic observation of objects detected by radar
    N c. Long-range radar scanning
    Y d. All of the above

4494: BOTH INTERNATIONAL & INLAND An anchored vessel on pilotage duty must show which light(s) at night?

    N a. A stern light only
    N b. Anchor lights only
    N c. A white light over a red light only
    Y d. A white light over a red light and anchor lights

4536: BOTH INTERNATIONAL & INLAND If a sailing vessel with the wind on the port side sees a sailing vessel to windward and cannot tell whether the other vessel has the wind on the port or starboard side, she shall __________.

    N a. hold course and speed
    N b. sound the danger signal
    Y c. keep out of the way of the other vessel
    N d. turn to port and come into the wind

4555: BOTH INTERNATIONAL & INLAND A sailing vessel is proceeding along a narrow channel and can safely navigate ONLY inside the channel. The sailing vessel approaches a vessel engaged in fishing. Which statement is TRUE?

    Y a. The fishing vessel is directed not to impede the passage of the sailing vessel.
    N b. The sailing vessel must keep out of the way of the fishing vessel.
    N c. Each vessel should move to the edge of the channel on her port side.
    N d. Each vessel should be displaying signals for a vessel constrained by her draft.

4606: BOTH INTERNATIONAL & INLAND A power driven vessel when towing and the length of the tow exceeds 200 meters shall exhibit during daylight hours where they can best be seen which of the following shapes?

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

4630: BOTH INTERNATIONAL & INLAND You hear the fog signal of another vessel forward of your beam. Risk of collision may exist. You MUST __________.

    Y a. reduce speed to bare steerageway
    N b. stop your engines
    N c. begin a radar plot
    N d. All of the above

4704: BOTH INTERNATIONAL & INLAND The masthead light may be located at other than the fore and aft centerline on a vessel __________.

    N a. less than 50 meters in length
    N b. less than 20 meters in length
    Y c. of special construction
    N d. engaged in trolling

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

8013: INTERNATIONAL ONLY When two vessels are in sight of one another, all of the following signals may be given EXCEPT __________.

    N a. a light signal of at least five short and rapid flashes
    Y b. four short whistle blasts
    N c. one prolonged, one short, one prolonged and one short whistle blasts
    N d. two short whistle blasts

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

8115: INTERNATIONAL ONLY Of the vessels listed, which must keep out of the way of all the others?

    N a. A vessel constrained by her draft
    N b. A vessel restricted in her ability to maneuver
    Y c. A vessel pushing a barge
    N d. A vessel engaged in fishing