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.


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


43: INLAND ONLY You are meeting another vessel head-on and sound one short blast as a passing signal. The other vessel answers with two short blasts. What should be your next action?


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 )


58: INLAND ONLY While underway, you sight the lights as shown, with the yellow lights flashing. You should __________. (DIAGRAM 81 )

    N a. wait until the vessel ahead crosses your bow
    N b. stop until the red lights turn green
    N c. proceed leaving all the lights on your starboard side
    Y d. pass between the two sets of vertical red lights

62: INLAND ONLY Which is TRUE of a vessel downbound with a following current when meeting an upbound vessel on the Western Rivers?

    Y a. She has the right-of-way only if she is a power-driven vessel.
    N b. She has the right-of-way only if she has a tow.
    N c. She does not have the right-of-way, since the other vessel is not crossing the river.
    N d. She must wait for a whistle signal from the upbound vessel.

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

    N a. A black cone, apex downward
    Y b. An all-round white light at each end of the tow
    N c. A flare-up light
    N d. All of the above

128: BOTH INTERNATIONAL & INLAND You are on a sailing vessel. While under sail you decide to use your engine to assist in propulsion. Which day signal would you show? (DIAGRAM 16 )

    N a. D
    N b. C
    N c. B
    Y d. None of these day signals are correct.

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

    Y a. diamond shape when the length of the tow is 200 meters or less
    N b. diamond shape 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

208: INTERNATIONAL ONLY A single vessel being towed alongside shall show __________.

    N a. one all-round white light
    Y b. sidelights and a stern light
    N c. only the outboard sidelight and a stern light
    N d. a masthead light, sidelights, and a stern light

238: BOTH INTERNATIONAL & INLAND Vessels "A" and "B" are meeting in a narrow channel as shown but are not in sight of one another due to restricted visibility. Which statement is TRUE concerning whistle signals between the vessels? (DIAGRAM 29 )

    N a. Both vessels should sound two short blasts.
    N b. Both vessels should sound one short blast.
    N c. Vessel "A" should sound one short blast and vessel "B" should sound two short blasts.
    Y d. None of the above statements is TRUE.

238: BOTH INTERNATIONAL & INLAND Vessels "A" and "B" are meeting in a narrow channel as shown but are not in sight of one another due to restricted visibility. Which statement is TRUE concerning whistle signals between the vessels? (DIAGRAM 29 )

    N a. Both vessels should sound two short blasts.
    N b. Both vessels should sound one short blast.
    N c. Vessel "A" should sound one short blast and vessel "B" should sound two short blasts.
    Y d. None of the above statements is TRUE.

360: BOTH INTERNATIONAL & INLAND Two power-driven vessels are crossing as shown. Vessel "A" sounds one short blast on the whistle. You are on vessel "B" and doubt that sufficient action is being taken by vessel "A" to avoid collision. You should __________. (DIAGRAM 42 )

    N a. maintain course and speed
    N b. alter course to the right or slow down
    N c. sound one short blast and maintain course and speed
    Y d. sound at least five short and rapid blasts

371: INTERNATIONAL ONLY If a towing vessel and her tow are severely restricted in their ability to deviate from their course, the towing vessel shall show lights in addition to her towing identification lights. These additional lights shall be shown if the tow is __________.

    N a. pushed ahead
    N b. towed alongside
    Y c. towed astern
    N d. All of the above

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

    N a. not under command
    N b. engaged in fishing
    Y c. under oars
    N d. towing

4053: BOTH INTERNATIONAL & INLAND Two vessels meeting in a "head-on" situation are directed by the Rules to __________.

    Y a. alter course to starboard and pass port to port
    N b. alter course to port and pass starboard to starboard
    N c. decide on which side the passage will occur by matching whistle signals
    N d. slow to bare steerageway

4060: BOTH INTERNATIONAL & INLAND A vessel approaching your vessel from 235 relative is in what type of situation?

    N a. Meeting
    Y b. Overtaking
    N c. Crossing
    N d. Passing

4107: BOTH INTERNATIONAL & INLAND A power-driven vessel has on her port side a sailing vessel which is on a collision course. The power-driven vessel is to __________.

    N a. maintain course and speed
    Y b. keep clear, passing at a safe distance
    N c. sound one blast and turn to starboard
    N d. stop her engines

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

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

4298: INTERNATIONAL ONLY A single vessel being towed alongside shall exhibit __________.

    N a. one all-round white light
    Y b. sidelights and a stern light
    N c. only the outboard sidelight and a stern light
    N d. a masthead light, sidelights, and a stern light

4302: BOTH INTERNATIONAL & INLAND A vessel nearing a bend or an area of a channel or fairway where other vessels may be obscured by an intervening obstruction shall sound __________.

    N a. one long blast
    Y b. one prolonged blast
    N c. the danger signal
    N d. two short blasts

4571: BOTH INTERNATIONAL & INLAND Risk of collision is considered to exist if __________.

    N a. four vessels are nearby
    N b. a vessel has a steady bearing at a constant range
    Y c. there is any doubt that a risk of collision exists
    N d. a special circumstance situation is apparent

4656: BOTH INTERNATIONAL & INLAND A vessel fishing at night, with gear extending more than 150 meters horizontally outwards, will show in the direction of the gear __________.

    Y a. one white light
    N b. two vertical white lights
    N c. one yellow light
    N d. two vertical yellow lights

4673: BOTH INTERNATIONAL & INLAND Which vessel may sound the danger signal?

    N a. Either vessel in a meeting situation
    N b. The give-way vessel in a crossing situation
    N c. A vessel at anchor
    Y d. All of the above

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

4845: BOTH INTERNATIONAL & INLAND What represents the length of a vessel as defined by the Rules? (DIAGRAM 86 )

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

4863: 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?

    N a. The fishing vessel must sound the danger signal.
    Y b. The fishing vessel shall not impede the passage of the sailing vessel.
    N c. Each vessel should move to the edge of the channel on her port side.
    N d. Both vessels should be displaying the signal for a vessel restricted in her ability to maneuver.

8007: INTERNATIONAL ONLY A towing light is __________.

    N a. shown at the bow
    N b. white in color
    Y c. shown in addition to the stern light
    N d. an all-round light

8075: INTERNATIONAL ONLY You intend to overtake a vessel in a narrow channel, and you intend to pass along the vessel's port side. How should you signal your intention?

    N a. Two short blasts followed by two prolonged blasts
    Y b. Two prolonged followed by two short blasts
    N c. Two prolonged blasts only
    N d. Two short blasts only

8131: INTERNATIONAL ONLY What characteristic must a light have if used to signal passing intentions?

    Y a. It must be an all-round white light.
    N b. It must be an alternating blue and white light.
    N c. It must be an all-round white or yellow light.
    N d. It must be an alternating red and yellow light.