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 __________.


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


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 )


78: INLAND ONLY Under the Inland Navigation Rules, what is the meaning of a one short blast signal used when meeting another vessel?

    N a. "I am turning to starboard."
    N b. "I am turning to port."
    N c. "I intend to leave you on my starboard side."
    Y d. "I intend to leave you on my port side."

100: INLAND ONLY Only law enforcement vessels are permitted to show __________.

    N a. two red lights in a vertical line
    N b. a flashing yellow light
    N c. an alternately flashing red and yellow light
    Y d. a flashing blue light

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

    N a. vessel towing astern
    Y b. sailing vessel
    N c. submarine operating on the surface
    N d. vessel pushing a barge ahead

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

    N a. restricted in her ability to maneuver
    N b. engaged in fishing
    Y c. not under command
    N d. on pilotage duty

243: INTERNATIONAL ONLY You are on vessel "A" as shown. Vessel "B" sounds two short blasts. You should __________. (DIAGRAM 32 )

    N a. sound two prolonged blasts followed by two short blasts
    Y b. not answer the whistle signal from vessel "B"
    N c. sound two short blasts and maintain course and speed
    N d. sound one prolonged, one short, one prolonged and one short blasts

252: INTERNATIONAL ONLY Vessels "A" and "B" are meeting on a river as shown and will pass 1/4 mile apart. Which action should the vessels take? (DIAGRAM 41 )

    Y a. The vessels should continue on course and pass without sounding any whistle signals.
    N b. The vessels should exchange two blast whistle signals and pass starboard to starboard.
    N c. The vessels should exchange one blast whistle signals and pass starboard to starboard.
    N d. The vessel with the tow should initiate the whistle signals.

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

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

4036: BOTH INTERNATIONAL & INLAND You are preparing to cross a narrow channel. You see a vessel that can only be navigated safely within the channel. You should __________.

    Y a. not cross the channel if you might impede the other vessel
    N b. initiate an exchange of passing signals
    N c. sound the danger signal
    N d. hold your course and speed

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

4119: BOTH INTERNATIONAL & INLAND A lantern combining a vessel's navigation lights may be shown on a __________.

    Y a. 15-meter sailing vessel
    N b. 20-meter vessel engaged in fishing and making way
    N c. 25-meter power-driven vessel trolling
    N d. 25-meter pilot vessel

4124: BOTH INTERNATIONAL & INLAND Vessel "A" is underway and pushing ahead when vessel "B" is sighted off the starboard bow as shown. Which vessel is the stand-on vessel? (DIAGRAM 28 )

    N a. Vessel "A" is the stand-on vessel because it is to port.
    N b. Vessel "A" is the stand-on vessel because it is pushing ahead.
    Y c. Vessel "B" is the stand-on vessel because it is to starboard of vessel "A".
    N d. Neither vessel is the stand-on vessel.

4142: BOTH INTERNATIONAL & INLAND A vessel engaged in fishing must display a light in the direction of any gear that extends outward more than 150 meters. The color of this light is __________.

    Y a. white
    N b. green
    N c. red
    N d. yellow

4153: BOTH INTERNATIONAL & INLAND A vessel transferring cargo while underway is classified by the Rules as a vessel __________.

    N a. not under command
    N b. in special circumstances
    Y c. restricted in her ability to maneuver
    N d. constrained by her draft

4285: BOTH INTERNATIONAL & INLAND While underway in fog you hear another vessel sounding two prolonged blasts every two minutes. This signal indicates a vessel __________.

    N a. making way through the water
    N b. towing
    Y c. drifting
    N d. anchored

4310: BOTH INTERNATIONAL & INLAND Which vessel is to be regarded as a vessel "restricted in her ability to maneuver"?

    N a. A vessel fishing with trawls
    N b. A vessel which has lost the use of her steering gear
    N c. A vessel with a draft of such depth that she cannot change her course
    Y d. A vessel engaged in mineclearing

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

4510: BOTH INTERNATIONAL & INLAND You are approaching a vessel dredging during the day and see two balls in a vertical line on the port side of the dredge. These shapes mean that __________.

    N a. you should pass on the port side of the dredge
    Y b. there is an obstruction on the port side of the dredge
    N c. the dredge is not under command
    N d. the dredge is moored

4535: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning the danger signal?

    N a. May be sounded by the stand-on vessel only
    N b. Indicates that the vessel is in distress
    N c. Is used to indicate a course change
    Y d. May be supplemented by an appropriate light signal

4543: BOTH INTERNATIONAL & INLAND Which situation would be a "special circumstance" under the Rules?

    N a. Vessel at anchor
    Y b. More than two vessels meeting
    N c. Speed in fog
    N d. Two vessels crossing

4611: BOTH INTERNATIONAL & INLAND A vessel, which does not normally engage in towing operations, is towing a vessel in distress. She __________.

    Y a. need not show the lights for a vessel engaged in towing, if it is impractical to do so
    N b. may show the lights for a vessel not under command
    N c. must show a yellow light above the stern light
    N d. must show the lights for a vessel towing

4641: BOTH INTERNATIONAL & INLAND Which vessel must exhibit forward and after white masthead lights when making way?

    Y a. A 75-meter vessel restricted in her ability to maneuver
    N b. A 100-meter sailing vessel
    N c. A 150-meter vessel engaged in fishing
    N d. A 45-meter vessel engaged in towing

4654: BOTH INTERNATIONAL & INLAND A vessel engaged in fishing shall keep out of the way of a vessel __________.

    N a. under sail
    Y b. restricted in her ability to maneuver
    N c. crossing a channel
    N d. All of the above

8006: INTERNATIONAL ONLY The International Rules of the Road apply __________.

    N a. to all waters which are not inland waters
    N b. only to waters outside the territorial waters of the United States
    N c. only to waters where foreign vessels travel
    Y d. upon the high seas and connecting waters navigable by seagoing vessels

8024: INTERNATIONAL ONLY Which signal is required to be sounded by a power-driven vessel ONLY?

    Y a. A signal meaning, "I am altering my course to starboard."
    N b. A signal meaning, "I intend to overtake you on your starboard side."
    N c. A signal meaning that the vessel sounding it is in doubt as to the other vessel's actions.
    N d. A signal sounded when approaching a bend.

8027: INTERNATIONAL ONLY Two prolonged blasts followed by one short blast on the whistle is a signal which could be sounded by a __________.

    N a. fishing vessel
    N b. vessel anchored
    N c. mineclearing vessel
    Y d. vessel overtaking another in a narrow channel

8054: INTERNATIONAL ONLY Which statement applies to a vessel "constrained by her draft"?

    Y a. She is severely restricted in her ability to change her course because of her draft in relation to the available depth of water.
    N b. The term applies only to vessels in marked channels.
    N c. She is designated as a "vessel restricted in her ability to maneuver".
    N d. The vessel must be over 100 meters in length.

8076: INTERNATIONAL ONLY You are underway in a narrow channel, and you are being overtaken by a vessel astern. After the overtaking vessel sounds the proper signal indicating his intention to pass your vessel on your starboard side, you signal your agreement by sounding __________.

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