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.


12: INLAND ONLY Your vessel is meeting another vessel head-on. To comply with the steering and sailing rules, you should __________.


13: INLAND ONLY Yellow lights are NOT used to identify __________.


18: INLAND ONLY Which lights are required for a barge, not part of a composite unit, being pushed ahead?


54: INLAND ONLY A barge more than 50 meters long would be required to show how many white anchor lights when anchored in a Secretary approved "special anchorage area"?

    N a. 1
    Y b. 2
    N c. 3
    N d. None

61: INLAND ONLY Your power-driven vessel is overtaking another power-driven vessel in a narrow channel. You wish to overtake her on her starboard side. You should sound a whistle signal of __________.

    Y a. one short blast
    N b. two prolonged blasts followed by one short blast
    N c. one prolonged and one short blast
    N d. at least five short blasts

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

    N a. sidelights only
    Y b. sidelights and towing lights
    N c. sidelights, towing lights, and two masthead lights
    N d. sidelights, towing lights, and three masthead lights

80: INLAND ONLY While underway at night, you see two yellow lights displayed in a vertical line. This should indicate to you a(n) __________.

    N a. opening in a pipeline
    N b. vessel broken down
    Y c. vessel pushing ahead
    N d. vessel fishing

160: BOTH INTERNATIONAL & INLAND The lights shown are exhibited by a vessel __________. (DIAGRAM 49 )

    Y a. vessel not under command
    N b. air-cushion vessel in the non-displacement mode
    N c. vessel engaged in fishing
    N d. vessel engaged in underwater operations

206: INTERNATIONAL ONLY What lights are required for a single barge being towed alongside?

    Y a. Sidelights and a stern light
    N b. Sidelights, a special flashing light, and a stern light
    N c. Sidelights and a special flashing light
    N d. Sidelights, a towing light, and a stern light

333: BOTH INTERNATIONAL & INLAND Diagram "B" shows the arc of visibility of a __________. (DIAGRAM 23 )

    N a. yellow flashing light
    N b. red sidelight
    Y c. green sidelight
    N d. stern light

3683: BOTH INTERNATIONAL & INLAND The rules require that a stand-on vessel SHALL take action to avoid collision when she determines that __________.

    N a. risk of collision exists
    N b. the other vessel will cross ahead of her
    N c. the other vessel is not taking appropriate action
    Y d. collision cannot be avoided by the give-way vessel's maneuver alone

4005: BOTH INTERNATIONAL & INLAND Which signal is recognized as a distress signal?

    N a. Directing the beam of a searchlight at another vessel
    Y b. A smoke signal giving off orange colored smoke
    N c. A whistle signal of one prolonged and three short blasts
    N d. International Code Signal "PAN" spoken over the radiotelephone

4014: BOTH INTERNATIONAL & INLAND A power-driven vessel underway in fog making NO way must sound what signal?

    N a. One long blast
    Y b. Two prolonged blasts
    N c. One prolonged blast
    N d. One prolonged and two short blasts

4062: BOTH INTERNATIONAL & INLAND You are in charge of a power-driven vessel navigating at night. You sight the red sidelight of another vessel on your port bow. The other vessel's after masthead light is to the right of her forward masthead light. You should __________.

    Y a. hold course and speed
    N b. alter course to port
    N c. stop engines
    N d. sound the danger signal

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

4125: BOTH INTERNATIONAL & INLAND If you saw flames aboard a vessel but could see the vessel was not on fire, you would know that the __________.

    N a. crew was trying to get warm
    Y b. vessel required immediate assistance
    N c. vessel was attempting to attract the attention of a pilot boat
    N d. vessel was being illuminated for identification by aircraft

4134: BOTH INTERNATIONAL & INLAND Vessel "A" is overtaking vessel "B" as shown. Which vessel is the stand-on vessel? (DIAGRAM 9 )

    N a. Vessel "A"
    Y b. Vessel "B"
    N c. Neither vessel
    N d. Both vessels must keep clear of the other.

4306: BOTH INTERNATIONAL & INLAND Which vessel is directed not to impede the passage of a vessel which can only navigate inside a narrow channel?

    Y a. A vessel of less than 20 meters in length
    N b. A vessel not under command
    N c. A vessel engaged in surveying
    N d. All of the above

4424: BOTH INTERNATIONAL & INLAND The Rules state that risk of collision shall be deemed to exist __________.

    N a. whenever two vessels approach from opposite directions
    Y b. if the bearing of an approaching vessel does not appreciably change
    N c. whenever a vessel crosses ahead of the intended track of another vessel
    N d. if one vessel approaches another so as to be overtaking

4473: BOTH INTERNATIONAL & INLAND A head-on situation at night is one in which you see dead ahead a vessel showing __________.

    N a. one sidelight
    N b. one sidelight and a masthead light
    N c. one sidelight and two masthead lights
    Y d. both sidelights of a vessel and her masthead light(s)

4561: BOTH INTERNATIONAL & INLAND Your vessel is aground in fog. In addition to the regular anchor signals, you will be sounding __________.

    N a. three strokes of the gong before and after the rapid ringing of the gong
    N b. a blast on the whistle
    Y c. three strokes of the bell before and after the rapid ringing of the bell
    N d. no additional signals

4570: BOTH INTERNATIONAL & INLAND Which signal may at some time be exhibited by a vessel trawling?

    N a. Two white lights in a vertical line
    N b. A white light over a red light in a vertical line
    N c. Two red lights in a vertical line
    Y d. All of the above

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

4633: BOTH INTERNATIONAL & INLAND If practical, when shall a manned vessel being towed sound her fog signal?

    N a. Immediately before the towing vessel sounds hers
    Y b. Immediately after the towing vessel sounds hers
    N c. As close to the mid-cycle of the towing vessel's signals as possible
    N d. At any time as long as the interval is correct

4657: BOTH INTERNATIONAL & INLAND In restricted visibility, a vessel which detects by radar alone the presence of another vessel shall determine if a close quarters situation is developing or risk of collision exists. If so, she shall __________.

    N a. sound the danger signal
    N b. when taking action, make only course changes
    Y c. avoid altering course toward a vessel abaft the beam
    N d. All of the above

4697: BOTH INTERNATIONAL & INLAND A tug is towing three barges astern in restricted visibility. The second vessel of the tow should sound __________.

    N a. one prolonged and two short blasts
    N b. one prolonged and three short blasts
    N c. one short blast
    Y d. no fog signal

4839: BOTH INTERNATIONAL & INLAND A vessel is considered to be "restricted in her ability to maneuver" under the Rules if she is __________.

    N a. at anchor
    Y b. mineclearing
    N c. engaged in fishing
    N d. engaged in towing

8005: INTERNATIONAL ONLY You are in charge of a 250-meter freight vessel constrained by her draft proceeding down a narrow channel. There is a vessel engaged in fishing on your starboard bow half a mile away. According to Rule 9, which statement is TRUE?

    N a. You are not to impede the fishing vessel.
    Y b. If you are in doubt as to the fishing vessel's intentions you may sound at least five short and rapid blasts on the whistle.
    N c. You are to slow to bare steerageway until clear of the fishing vessel.
    N d. You must sound one prolonged blast to alert the fishing vessel.

8010: INTERNATIONAL ONLY A vessel displaying three red lights in a vertical line is __________.

    N a. not under command
    N b. aground
    N c. dredging
    Y d. constrained by her draft

8050: INTERNATIONAL ONLY A sailing vessel is overtaking a power-driven vessel in a narrow channel, so as to pass on the power-driven vessel's port side. The overtaken vessel will have to move to facilitate passage. The sailing vessel is the __________.

    N a. stand-on vessel and would sound two short blasts
    N b. give-way vessel and would sound no whistle signal
    N c. stand-on vessel and would sound no whistle signal
    Y d. give-way vessel and would sound two prolonged blasts followed by two short blasts