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.


15: INLAND ONLY Under the Inland Navigation Rules, what is the meaning of the two short blasts signal used when meeting another vessel?


83: INLAND ONLY If your tug is pushing a barge ahead at night and it is not a composite unit, which light(s) should show aft on your vessel?


106: INLAND ONLY You are overtaking another power-driven vessel and sound a whistle signal indicating that you intend to pass the vessel along her starboard side. If the other vessel answers your signal with five short and rapid blasts, you should __________.


111: INLAND ONLY Which light display marks the opening in a pipeline where vessels could pass through?

    Y a. Two red lights in a vertical line on each side of the opening
    N b. Three red lights in a vertical line on each side of the opening
    N c. Two yellow lights in a vertical line on each side of the opening
    N d. Three white lights in a vertical line on each side of the opening

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.

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

218: INLAND ONLY Your tug is pushing a barge ahead at night. What light(s) should show aft on your vessel? DIAGRAMS60,75,46,70

    N a. The light(s) in Diagram 60.
    Y b. The light(s) in Diagram 75.
    N c. The light(s) in Diagram 46.
    N d. The light(s) in Diagram 70.

254: INLAND ONLY Vessels "A" and "B" are meeting on a river as shown and will pass 1/4 mile apart. Which is one of the lights on vessel "B" that you will see if you are on vessel "A"? (DIAGRAM 41 )

    N a. red sidelight
    N b. yellow towing light
    Y c. special flashing light
    N d. All of the above

261: INLAND ONLY While underway and in sight of another vessel forward of your beam more than 0.5 mile away, you put your engines full speed astern. Which statement concerning whistle signals is TRUE?

    N a. You must sound three short blasts on the whistle.
    N b. You must sound one blast if backing to starboard.
    N c. You must sound whistle signals only if the vessels are meeting.
    Y d. You need not sound any whistle signals.

274: INLAND ONLY While underway you sight the lights 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
    Y c. pass between the two sets of vertical red lights
    N d. proceed leaving all the lights on your starboard side

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

    Y a. sailing vessel
    N b. vessel on pilotage duty
    N c. vessel engaged in fishing
    N d. power-driven vessel

4022: BOTH INTERNATIONAL & INLAND A sailing vessel underway may exhibit __________.

    Y a. a red light over a green light at the masthead
    N b. a green light over a red light at the masthead
    N c. two white lights in a vertical line at the stern
    N d. an all-round white light at the bow

4023: BOTH INTERNATIONAL & INLAND A sailing vessel is overtaking a tug and tow as shown. Which statement is CORRECT? (DIAGRAM 43 )

    N a. The sailing vessel is the stand-on vessel because it is overtaking.
    N b. The sailing vessel is the stand-on vessel because it is under sail.
    Y c. The tug is the stand-on vessel because it is being overtaken.
    N d. The tug is the stand-on vessel because it is towing.

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

4210: BOTH INTERNATIONAL & INLAND A vessel being towed astern shall show at night __________.

    N a. the lights required for a power-driven vessel underway
    N b. only the required masthead lights
    N c. a stern light only
    Y d. sidelights and a stern light

4338: BOTH INTERNATIONAL & INLAND A vessel hearing a fog signal forward of her beam has not determined if risk of collision exists. She shall reduce speed to __________.

    N a. moderate speed
    N b. safe speed
    N c. half speed
    Y d. bare steerageway

4363: BOTH INTERNATIONAL & INLAND A vessel displaying the day shape shown is __________. (DIAGRAM 10 )

    N a. broken down
    N b. anchored
    Y c. towing
    N d. fishing

4407: BOTH INTERNATIONAL & INLAND A 200-meter vessel is aground in restricted visibility. Which signal is optional?

    N a. A bell signal
    N b. A gong signal
    Y c. A whistle signal
    N d. All of the above

4471: BOTH INTERNATIONAL & INLAND A vessel towing astern in an operation which severely restricts the towing vessel and her tow in their ability to deviate from their course shall, when making way, show __________.

    N a. the masthead lights for a towing vessel
    N b. the lights for a vessel restricted in its ability to maneuver
    N c. sidelights, stern light and towing light
    Y d. All of the above

4523: BOTH INTERNATIONAL & INLAND A vessel is overtaking when she approaches another from more than how many degrees abaft the beam?

    N a. 0.0°
    N b. 11.25°
    Y c. 22.5°
    N d. 45.0°

4582: BOTH INTERNATIONAL & INLAND At night, a vessel displaying the lights shown is __________. (DIAGRAM 52 )

    N a. pushing ahead
    Y b. underway
    N c. towing a submerged object
    N d. engaged in dredging

4637: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning a vessel under oars?

    N a. She must show a stern light.
    Y b. She is allowed to show the same lights as a sailing vessel.
    N c. She must show a fixed all-round white light.
    N d. She must show a day-shape of a black cone.

4640: BOTH INTERNATIONAL & INLAND When two power-driven vessels are crossing, which vessel is the stand-on vessel?

    Y a. The vessel which is to starboard of the other vessel
    N b. The vessel which is to port of the other vessel
    N c. The larger vessel
    N d. The vessel that sounds the first whistle signal

4663: BOTH INTERNATIONAL & INLAND Which statement is TRUE regarding equipment for bell & gong signals?

    N a. A vessel of less than 12 meters in length need not have any sound signaling equipment.
    Y b. Manual sounding of the signals must always be possible.
    N c. Any vessel over 12 meters in length must be provided with a gong.
    N d. Signals must be able to be sounded manually and automatically.

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

6570: BOTH INTERNATIONAL & INLAND A traffic separation zone is that part of a traffic separation scheme which __________.

    N a. is between the scheme and the nearest land
    N b. contains all the traffic moving in one direction
    N c. is designated as an anchorage area
    Y d. separates traffic proceeding in one direction from traffic proceeding in the opposite direction

8025: INTERNATIONAL ONLY The light which may be used with a vessel's whistle is to be __________.

    N a. used when the whistle is broken
    N b. used prior to sounding the whistle
    N c. used only at night
    Y d. a white light

8060: INTERNATIONAL ONLY You are operating a vessel in a narrow channel. Your vessel must stay within the channel to be navigated safely. Another vessel is crossing your course from starboard to port, and you are in doubt as to his intentions. According to Rule 9, you __________.

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

8127: INTERNATIONAL ONLY Which statement is TRUE, according to the Rules?

    N a. A vessel constrained by her draft shall keep out of the way of a vessel engaged in fishing.
    Y b. 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 c. A vessel not under command shall avoid impeding the safe passage of a vessel constrained by her draft.
    N d. A vessel not under command shall keep out of the way of a vessel restricted in her ability to maneuver.

8136: INTERNATIONAL ONLY A power-driven vessel pushing ahead or towing alongside will show sidelights, a stern light, and __________.

    N a. an all-round red light where it can best be seen
    N b. two yellow masthead lights in a vertical line
    Y c. two masthead lights in a vertical line
    N d. a single white light forward