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.


11: INLAND ONLY When you are overtaking another vessel and desire to pass on her left or port hand, you should sound __________.


93: INLAND ONLY While underway in a harbor you hear a vessel sound a prolonged blast. This signal indicates that this vessel __________.


129: INLAND ONLY You are proceeding in a channel in inland waters and are meeting an outbound vessel. Your responsibilities include __________.


174: BOTH INTERNATIONAL & INLAND You see the display of lights shown. They could indicate a vessel __________. (DIAGRAM 71 )

    N a. under sail and power
    N b. dredging while underway
    N c. fishing with nets extending more than 150 meters
    Y d. power-driven and approaching head-on

369: BOTH INTERNATIONAL & INLAND Two power-driven vessels are crossing as shown. Vessel "A" sounds one short blast on the whistle. Vessel "A" is the __________. (DIAGRAM 42 )

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

4009: BOTH INTERNATIONAL & INLAND Your 15-meter tug is underway and crossing a deep and narrow channel. A large container vessel is off your port bow on a steady bearing. Which statement is TRUE concerning this situation?

    N a. You should maintain course and speed.
    N b. The container vessel is the stand-on as it is the larger vessel.
    Y c. You are not to impede the safe passage of the container vessel in the channel.
    N d. None of the above

4095: BOTH INTERNATIONAL & INLAND When underway in a channel, you should keep to the __________.

    N a. middle of the channel
    Y b. starboard side of the channel
    N c. port side of the channel
    N d. side of the channel that has the widest turns

4101: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning the danger signal?

    Y a. When any vessel fails to understand the intentions of an approaching vessel she must sound the danger signal.
    N b. Only the stand-on vessel can sound the danger signal.
    N c. Distress signals may be used in place of the danger signal.
    N d. The danger signal consists of 4 or more short blasts of the whistle.

4109: BOTH INTERNATIONAL & INLAND A vessel towing in fog shall sound a fog signal of __________.

    N a. one prolonged blast every one minute
    N b. two prolonged blasts every two minutes
    Y c. one prolonged and two short blasts every two minutes
    N d. one prolonged blast every two minutes

4120: BOTH INTERNATIONAL & INLAND A vessel engaged in fishing during the day would show __________.

    N a. one black ball
    N b. two cones with bases together
    N c. a cone, apex downward
    Y d. two cones, apexes together

4184: BOTH INTERNATIONAL & INLAND You are approaching another vessel at night. You can see both red and green sidelights and, above the level of the sidelights, three white lights in a vertical line. The vessel may be __________.

    N a. not under command
    Y b. towing a tow more than 200 meters astern
    N c. trawling
    N d. underway and dredging

4187: BOTH INTERNATIONAL & INLAND In a crossing situation on open waters, a sailing vessel shall keep out of the way of all the following vessels EXCEPT a __________.

    N a. vessel not under command
    N b. vessel restricted in her ability to maneuver
    Y c. power-driven vessel approaching on her starboard side
    N d. vessel fishing

4190: BOTH INTERNATIONAL & INLAND A power-driven vessel making way through the water sounds a fog signal of __________.

    Y a. one prolonged blast at intervals of not more than two minutes
    N b. two prolonged blasts at intervals of not more than two minutes
    N c. one prolonged blast at intervals of not more than one minute
    N d. two prolonged blasts at intervals of not more than one minute

4192: BOTH INTERNATIONAL & INLAND In restricted visibility, a vessel fishing with nets shall sound at intervals of two minutes __________.

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

4195: BOTH INTERNATIONAL & INLAND All of the following vessels are "restricted in their ability to maneuver" EXCEPT a vessel __________.

    N a. laying a pipeline
    N b. dredging
    N c. mineclearing
    Y d. not under command

4319: BOTH INTERNATIONAL & INLAND Which statement about a 25-meter auxiliary sailboat is TRUE?

    N a. The sidelights and stern light may be combined in one lantern.
    N b. When operating under sail, her fog signal would consist of one prolonged blast.
    N c. She may show a green light over a red light at the masthead.
    Y d. She must show fixed sidelights.

4452: BOTH INTERNATIONAL & INLAND You are underway in fog and you hear three distinct bell strokes followed by five seconds of rapid bell ringing followed by three distinct bell strokes. This signal indicates a vessel __________.

    Y a. aground
    N b. engaged in underwater construction
    N c. at anchor
    N d. in distress

4467: BOTH INTERNATIONAL & INLAND Under the Rules, the term "vessel" includes __________.

    N a. non-self-propelled raft
    N b. seaplanes
    N c. hovercrafts
    Y d. All of the above

4589: BOTH INTERNATIONAL & INLAND You are operating in restricted visibility and hear a signal of a rapidly ringing bell followed by the rapid sounding of a gong. It could be a __________.

    N a. 30-meter sail vessel at anchor
    N b. 150-meter power-driven vessel aground
    N c. vessel in distress
    Y d. 300-meter power-driven vessel at anchor

4618: BOTH INTERNATIONAL & INLAND Which vessel would exhibit sidelights when underway and not making way?

    Y a. A vessel towing astern
    N b. A vessel trawling
    N c. A vessel not under command
    N d. A vessel engaged in dredging operations

4639: BOTH INTERNATIONAL & INLAND At night you sight a vessel displaying a single green light. This is a __________.

    N a. vessel at anchor
    N b. small motorboat underway
    N c. vessel drifting
    Y d. sailing vessel

4703: BOTH INTERNATIONAL & INLAND A towing light is a yellow light having the same characteristics as a(n) __________.

    N a. special flashing light
    N b. anchor light
    Y c. stern light
    N d. masthead light

4720: BOTH INTERNATIONAL & INLAND A vessel displaying the lights shown could be a vessel __________. (DIAGRAM 56 )

    N a. towing a barge alongside
    N b. at anchor and dredging
    Y c. underway and engaged in surveying operations
    N d. not under command and making way

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

4819: BOTH INTERNATIONAL & INLAND Which breadth shown represents the breadth as defined in the Rules? (DIAGRAM 87 )

    Y a. A
    N b. B
    N c. C
    N d. D

4854: BOTH INTERNATIONAL & INLAND You are approaching another vessel on crossing courses. She is approximately half a mile distant on your starboard bow. You believe she will cross ahead of you but she sounds a whistle signal of five short blasts. You should __________.

    N a. sound a signal of one prolonged blast
    Y b. make a large course change
    N c. reduce speed slightly to make sure she will have room to pass
    N d. wait for another whistle signal from the other vessel

4859: 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 in the narrow channel. Which statement is TRUE?

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

8002: INTERNATIONAL ONLY Which statement is true concerning a vessel "constrained by her draft"?

    Y a. She must be a power-driven vessel.
    N b. She is not under command.
    N c. She may be a vessel being towed.
    N d. She is hampered because of her work.

8104: INTERNATIONAL ONLY Your vessel is constrained by her draft and operating in a narrow channel. Another vessel is crossing your course from starboard to port. You are in doubt as to her intentions. According to Rule 9, you __________.

    N a. should sound one short blast to indicate that you are holding course and speed
    N b. must sound one prolonged blast
    Y c. may sound the danger signal
    N d. are required to back down

8128: INTERNATIONAL ONLY Which statement is TRUE, according to the Rules?

    Y a. A vessel engaged in fishing while underway shall, so far as possible, keep out of the way of a vessel restricted in her ability to maneuver.
    N b. A vessel not under command shall keep out of the way of a vessel restricted in her ability to maneuver.
    N c. A vessel engaged in fishing shall keep out of the way of a sailing vessel.
    N d. A vessel not under command shall keep out of the way of a vessel engaged in fishing.