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.


16: INLAND ONLY For the purpose of the Inland Navigation Rules, the term "Inland Waters" includes __________.


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


57: INLAND ONLY While underway during the day you sight a small motorboat showing a flashing blue light. The blue light indicates a __________.


125: INLAND ONLY Under the Inland Navigation Rules, the term "Inland Waters" includes __________.

    N a. any waters marked by U.S. aids to navigation
    N b. harbors and rivers to the outermost aids to navigation
    N c. waters along the coast of the United States to a distance of two miles offshore
    Y d. the Western Rivers, extending to the COLREGS demarcation line

133: INLAND ONLY A power-driven vessel operating in a narrow channel with a following current on the Great Lakes or Western Rivers is meeting an upbound vessel. Which statement is TRUE?

    Y a. The downbound vessel has the right of way.
    N b. The upbound vessel must initiate the required maneuvering signals.
    N c. The upbound vessel must propose the manner of passing.
    N d. All of the above

155: BOTH INTERNATIONAL & INLAND You are underway at night and you sight the lights shown. You know these lights indicate a(n) __________. (DIAGRAM 47 )

    Y a. sailing vessel
    N b. air cushion vessel operating in the non-displacement mode
    N c. submarine operating on the surface
    N d. vessel pushing a barge ahead

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.

343: INLAND ONLY Two power-driven vessels are crossing within a half a mile of each other as shown. Vessel "A" sounds one short blast on the whistle. This signal means __________. (DIAGRAM 42 )

    N a. "I intend to leave you on my starboard side"
    Y b. "I intend to leave you on my port side"
    N c. "I am altering my course to starboard"
    N d. None of the above

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

4121: BOTH INTERNATIONAL & INLAND A sailing vessel is NOT required to keep out of the way of a __________.

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

4198: BOTH INTERNATIONAL & INLAND You are underway and approaching a bend in the channel where vessels approaching from the opposite direction cannot be seen. You should sound __________.

    Y a. one blast, 4 to 6 seconds in duration
    N b. three blasts, 4 to 6 seconds in duration
    N c. one continuous blast until you are able to see around the bend
    N d. one blast, 8 to 10 seconds in duration

4201: BOTH INTERNATIONAL & INLAND A power-driven vessel towing astern shall show __________.

    N a. two towing lights in a vertical line
    Y b. a towing light in a vertical line above the stern light
    N c. two towing lights in addition to the stern light
    N d. a small white light in lieu of the stern light

4207: BOTH INTERNATIONAL & INLAND Your power-driven vessel is underway when you sight a sailing vessel on your port bow. Which vessel is the "stand-on" vessel?

    N a. The sailboat, because it is to port of your vessel
    Y b. The sailboat, because it is under sail
    N c. Your vessel, because it is a power-driven vessel
    N d. Your vessel, because it is to starboard of the sailboat

4211: BOTH INTERNATIONAL & INLAND In order for a stand-on vessel to take action in a situation, she must determine that the other vessel __________.

    N a. is restricted in her ability to maneuver
    N b. has sounded the danger signal
    Y c. is not taking appropriate action
    N d. has not changed course since risk of collision was determined

4365: BOTH INTERNATIONAL & INLAND An anchored vessel is servicing an aid to navigation and is restricted in her ability to maneuver. Which lights will she show?

    Y a. Three lights in a vertical line, the highest and lowest red and the middle white, and anchor lights
    N b. Three lights in a vertical line, the highest and lowest red and the middle white, ONLY
    N c. Anchor lights ONLY
    N d. Anchor lights and sidelights ONLY

4402: BOTH INTERNATIONAL & INLAND A vessel at anchor will show a __________.

    Y a. ball
    N b. cone
    N c. cylinder
    N d. double cone, apexes together

4456: BOTH INTERNATIONAL & INLAND What is the required fog signal for a manned vessel being towed at night?

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

4470: BOTH INTERNATIONAL & INLAND You are in charge of a stand-on vessel in a crossing situation. The other vessel is 1.5 miles to port. You believe that risk of collision exists. You should __________.

    N a. take avoiding action immediately upon determining that risk of collision exists
    N b. immediately sound the danger signal, and change course
    Y c. take avoiding action only after giving the give-way vessel time to take action, and determining that her action is not appropriate
    N d. hold course and speed until the point of extremis, and then sound the danger signal, taking whatever action will best avoid collision

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

4478: BOTH INTERNATIONAL & INLAND Risk of collision exists when an approaching vessel has a(n) __________.

    Y a. generally steady bearing and decreasing range
    N b. generally steady range and increasing bearing
    N c. increasing range and bearing
    N d. decreasing bearing only

4496: BOTH INTERNATIONAL & INLAND A vessel which is fishing is required to show sidelights and a stern light only when __________.

    N a. anchored
    N b. underway
    N c. dead in the water
    Y d. underway and making way

4545: BOTH INTERNATIONAL & INLAND You are approaching another vessel and are not sure whether danger of collision exists. You must assume __________.

    Y a. there is risk of collision
    N b. you are the give way vessel
    N c. the other vessel is also in doubt
    N d. All of the above are correct.

4579: BOTH INTERNATIONAL & INLAND As defined in the Rules, the term "vessel" includes __________.

    N a. seaplanes
    N b. nondisplacement craft
    N c. barges
    Y d. All of the above

4607: BOTH INTERNATIONAL & INLAND What is the minimum length of vessels required to show two anchor lights?

    N a. 40 meters
    Y b. 50 meters
    N c. 60 meters
    N d. 70 meters

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

4714: BOTH INTERNATIONAL & INLAND Which vessel would exhibit sidelights when underway and not making way?

    N a. A vessel not under command
    Y b. A vessel pushing ahead
    N c. A vessel engaged in dredging
    N d. A vessel trawling

4855: BOTH INTERNATIONAL & INLAND Under the Rules, any vessel may slacken her speed, stop, or reverse her engines to __________.

    N a. create a crossing situation
    Y b. allow more time to assess the situation
    N c. attract the attention of another vessel
    N d. All of the above

4876: BOTH INTERNATIONAL & INLAND You are approaching a narrow channel. Another vessel in the channel can only be navigated safely in that channel. You should __________.

    N a. sound two prolonged blasts followed by one short blast
    Y b. not cross the channel if you might impede the other vessel
    N c. sound three short blasts, and take all way off your vessel
    N d. hold your course and speed if he is on your port bow

8105: INTERNATIONAL ONLY Your vessel is crossing a narrow channel. A vessel to port is within the channel and crossing your course. She is showing a black cylinder. You should __________.

    N a. hold your course and speed
    Y b. not impede the other vessel
    N c. exchange passing signals
    N d. sound the danger signal

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