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.


33: INLAND ONLY For the purpose of the Inland Navigation Rules, the term "inland waters" includes __________.


42: INLAND ONLY You are underway in a narrow channel, and are being overtaken by another power-driven vessel. The overtaking vessel sounds the signal indicating his intention to pass you on your starboard side. You signal your agreement by sounding __________.


50: INLAND ONLY Vessels "A" and "B" are meeting on a river as shown and will pass about 1/4 mile apart. Which statement is TRUE? (DIAGRAM 29 )


60: INLAND ONLY Two vessels are meeting on a clear day and will pass less than half a mile apart. In this situation whistle signals __________.

    N a. must be exchanged
    N b. may be exchanged
    Y c. must be exchanged if passing agreements have not been made by radio
    N d. must be exchanged only if course changes are necessary by either vessel

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

269: INLAND ONLY Two power-driven vessels are meeting in a narrow channel on the Great Lakes as shown. Vessel "A" is downbound with a following current. Vessel "A" shall __________. (DIAGRAM 37 )

    N a. propose the manner of passage
    N b. have the right of way
    N c. initiate the maneuvering signals
    Y d. All of the above

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

    N a. white masthead light
    Y b. green sidelight
    N c. red sidelight
    N d. stern light

4002: BOTH INTERNATIONAL & INLAND While underway in fog, you hear a prolonged blast from another vessel. This signal indicates a __________.

    N a. sailboat underway
    N b. vessel underway, towing
    Y c. power-driven vessel underway, making way
    N d. vessel being towed

4012: BOTH INTERNATIONAL & INLAND A vessel which displays the day signal shown may be engaged in __________. (DIAGRAM 6 )

    Y a. submarine cable laying
    N b. pilotage duty
    N c. fishing
    N d. mineclearance

4025: BOTH INTERNATIONAL & INLAND A sailing vessel with the wind abaft the beam is navigating in fog. She should sound __________.

    N a. three short blasts
    N b. one prolonged blast
    Y c. one prolonged and two short blasts
    N d. two prolonged blasts

4077: BOTH INTERNATIONAL & INLAND A vessel at anchor shall display, between sunrise and sunset, on the forward part of the vessel where it can best be seen __________.

    Y a. one black ball
    N b. two black balls
    N c. one red ball
    N d. two orange and white balls

4168: BOTH INTERNATIONAL & INLAND When a vessel signals her distress by means of a gun or other explosive signal, the firing should be at intervals of approximately __________.

    N a. 10 minutes
    Y b. 1 minute
    N c. 1 hour
    N d. 3 minutes

4202: BOTH INTERNATIONAL & INLAND You are underway in fog when you hear the following signal: one short blast, one prolonged blast and one short blast in succession. Which of the following would it be?

    N a. A sailing vessel underway with the wind abaft the beam
    N b. A power-driven vessel underway and making way through the water
    Y c. A vessel at anchor
    N d. A vessel towing

4243: BOTH INTERNATIONAL & INLAND In reduced visibility, you hear two prolonged blasts of a whistle. This signal is sounded by a __________.

    Y a. power-driven vessel dead in the water
    N b. sailing vessel on the port tack
    N c. vessel not under command
    N d. vessel fishing with nets

4277: BOTH INTERNATIONAL & INLAND You are underway in a fog when you hear a whistle signal of one prolonged blast followed by two short blasts. This signal could indicate all of the following EXCEPT a vessel __________.

    Y a. being towed
    N b. not under command
    N c. fishing with trawls
    N d. towing astern

4319: BOTH INTERNATIONAL & INLAND Which statement about a 25-meter auxiliary sailboat is TRUE?

    N a. The sidelights and stern light may be combined in one lantern.
    N b. When operating under sail, her fog signal would consist of one prolonged blast.
    N c. She may show a green light over a red light at the masthead.
    Y d. She must show fixed sidelights.

4328: BOTH INTERNATIONAL & INLAND A vessel displaying the day-shape shown __________. (DIAGRAM 10 )

    N a. is at anchor
    N b. is not under command
    Y c. has a tow that exceeds 200 meters in length
    N d. has a tow that is carrying dangerous cargo

4360: BOTH INTERNATIONAL & INLAND While underway, you see a vessel displaying the day-shapes shown. Which action should you take? (DIAGRAM 6 )

    N a. Maintain course and speed
    N b. Provide assistance, the other vessel is in distress
    Y c. Stay clear, the other vessel is maneuvering with difficulty
    N d. Stop your vessel and sound passing signals

4368: BOTH INTERNATIONAL & INLAND In a dense fog you hear a whistle signal ahead of one prolonged blast followed by three short blasts. This signal indicates a __________.

    N a. fishing vessel underway trawling
    Y b. manned vessel being towed
    N c. pilot vessel underway making a special signal
    N d. vessel not under command

4409: BOTH INTERNATIONAL & INLAND A vessel or object being towed astern shall display a(n) __________.

    N a. forward masthead light
    N b. after masthead light
    Y c. stern light
    N d. All of the above

4429: BOTH INTERNATIONAL & INLAND Two vessels are meeting head-on. How must the vessels pass?

    N a. One vessel must alter course while the other must continue on its course.
    N b. The vessels should determine which will alter course by sounding whistle signals.
    N c. Both vessels should alter course to port and pass starboard to starboard.
    Y d. Both vessels should alter course to starboard and pass port to port.

4452: BOTH INTERNATIONAL & INLAND You are underway in fog and you hear three distinct bell strokes followed by five seconds of rapid bell ringing followed by three distinct bell strokes. This signal indicates a vessel __________.

    Y a. aground
    N b. engaged in underwater construction
    N c. at anchor
    N d. in distress

4463: BOTH INTERNATIONAL & INLAND You are underway on vessel "B" approaching vessel "A", as shown. You are unable to see any sidelights on vessel "A". This is a(n) __________. (DIAGRAM 38 )

    N a. meeting situation
    N b. crossing situation
    Y c. overtaking situation
    N d. special circumstances situation

4531: BOTH INTERNATIONAL & INLAND Your vessel enters fog. You stop your engines, and the vessel is dead in the water. Which fog signal should you sound?

    N a. One prolonged blast every two minutes
    Y b. Two prolonged blasts every two minutes
    N c. Three short blasts every two minutes
    N d. One prolonged and two short blasts every two minutes

4629: BOTH INTERNATIONAL & INLAND For a stand-on vessel to take action to avoid collision she shall, if possible, NOT __________.

    N a. decrease speed
    N b. increase speed
    Y c. turn to port for a vessel on her port side
    N d. turn to starboard for a vessel on her port side

4649: BOTH INTERNATIONAL & INLAND Which vessel may carry her sidelights and stern light in one combined lantern?

    N a. A 10-meter power-driven vessel
    N b. A 15-meter vessel propelled by sail and machinery
    Y c. A 10-meter sailing vessel
    N d. All of the above

4724: BOTH INTERNATIONAL & INLAND At night, a vessel displaying the lights shown is __________. (DIAGRAM 65 )

    N a. trawling
    N b. not under command
    Y c. anchored
    N d. drifting

4833: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning a "vessel engaged in fishing"?

    N a. The vessel is classified as "restricted in her ability to maneuver".
    N b. Her gear will not affect the vessel's maneuverability.
    Y c. The vessel may be using nets, lines, or trawls.
    N d. She sounds the same fog signal as a vessel underway but stopped and making no way.

5200: BOTH INTERNATIONAL & INLAND In a traffic separation scheme, when joining a traffic lane from the side, a vessel shall do so __________.

    N a. only in case of an emergency or to engage in fishing within the zone
    N b. as nearly as practical at right angles to the general direction of traffic flow
    Y c. at as small an angle as possible
    N d. only to anchor within the zone

8038: INTERNATIONAL ONLY In which case would an overtaking vessel sound a whistle signal of two prolonged followed by one short blast?

    N a. When overtaking in restricted visibility
    Y b. When overtaking in a narrow channel
    N c. When overtaking on open waters
    N d. When no other vessels are in the immediate area