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 __________.


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 )


213: INTERNATIONAL ONLY You see the lights shown. This is a __________. (DIAGRAM 66 )


224: INLAND ONLY A barge more than 50 meters long, at anchor in a "special anchorage area designated by the Secretary", is required to show how many white anchor lights?

    N a. None
    Y b. Two
    N c. One
    N d. One, on the near approach of another vessel

258: INLAND ONLY Vessels "A" and "B" are meeting on a river as shown and will pass 1/4 mile apart. Which statement is TRUE? (DIAGRAM 41 )

    N a. Whistle signals must be exchanged in all situations when passing within one half mile.
    Y b. If a passing agreement is reached by radiotelephone, whistle signals are optional.
    N c. If a passing agreement is reached by radiotelephone whistle signals are still required.
    N d. None of the above

259: BOTH INTERNATIONAL & INLAND Barges being towed at night must exhibit navigation lights __________.

    Y a. at all times
    N b. only if manned
    N c. only if towed astern
    N d. Need not be lighted

369: BOTH INTERNATIONAL & INLAND Two power-driven vessels are crossing as shown. Vessel "A" sounds one short blast on the whistle. Vessel "A" is the __________. (DIAGRAM 42 )

    N a. stand-on vessel
    N b. overtaking vessel
    Y c. give-way vessel
    N d. None of the above

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

    N a. law enforcement vessel
    N b. vessel on pilotage duty
    N c. vessel engaged in fishing
    Y d. sailing vessel

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

    Y a. take action to permit safe passage
    N b. have the right of way
    N c. initiate the maneuvering signals
    N d. None of the above

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

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

4076: BOTH INTERNATIONAL & INLAND If a rowboat underway does NOT show the lights specified for a sailing vessel underway, it shall show a __________.

    N a. white light from sunset to sunrise
    N b. combined lantern showing green to starboard and red to port and shown from sunset to sunrise
    N c. combined lantern showing green to starboard and red to port and shown in sufficient time to prevent collision
    Y d. white light shown in sufficient time to prevent collision

4254: BOTH INTERNATIONAL & INLAND You are underway in restricted visibility and hear a fog signal forward of the beam. Nothing appears on your radar screen. You must __________.

    N a. stop your engines
    N b. sound two prolonged blasts of the whistle
    N c. sound the danger signal
    Y d. slow to bare steerageway

4265: BOTH INTERNATIONAL & INLAND While underway and pushing a barge ahead, your vessel enters a heavy rain storm. You should sound __________.

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

4281: BOTH INTERNATIONAL & INLAND A vessel 30 meters in length and aground would display a day-shape consisting of __________.

    N a. a cylinder
    N b. one black ball
    N c. two black balls in a vertical line
    Y d. three black balls in a vertical line

4348: BOTH INTERNATIONAL & INLAND You are on vessel "A" pushing a barge ahead and meeting vessel "B" as shown. How should the vessels pass? (DIAGRAM 12 )

    Y a. Both vessels must alter course to starboard and pass port to port.
    N b. Both vessels must alter course to port and pass starboard to starboard.
    N c. Vessel "A" should maintain course and vessel "B" alter course.
    N d. The vessels should determine which will alter course by sounding whistle signals.

4389: BOTH INTERNATIONAL & INLAND An overtaking situation at night would be one in which one vessel sees which light(s) of a vessel ahead?

    N a. Masthead lights and sidelights
    N b. One sidelight, the masthead lights and stern light
    N c. Both sidelights
    Y d. Stern light

4447: BOTH INTERNATIONAL & INLAND A rigid replica of the International Code flag "A" may be shown by a vessel __________.

    N a. pulling a submarine cable
    Y b. engaged in diving operations
    N c. engaged in underway replenishment
    N d. transferring explosives

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

4489: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning a vessel of 150 meters in length, at anchor?

    N a. She may show an all-round white light where it can best be seen.
    Y b. She must show all-round white lights forward and aft.
    N c. The showing of working lights is optional.
    N d. None of the above

4568: BOTH INTERNATIONAL & INLAND Which vessel is "underway" according to the Rules?

    N a. A vessel made fast to a single point mooring buoy
    Y b. A purse seiner hauling her nets
    N c. A pilot vessel at anchor
    N d. A vessel which has run aground

4587: BOTH INTERNATIONAL & INLAND A vessel anchored in fog may warn an approaching vessel by sounding __________.

    N a. the whistle continuously
    Y b. one short, one prolonged, and one short blast of the whistle
    N c. five or more short and rapid blasts of the whistle
    N d. three distinct strokes on the bell before and after sounding the anchor signal

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

4626: BOTH INTERNATIONAL & INLAND A vessel being towed astern, where the length of the tow exceeds 200 meters, will exhibit __________.

    N a. two balls in a vertical line
    Y b. a diamond shape where it can best be seen
    N c. a ball on each end of the tow
    N d. no day-shape

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

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

5100: BOTH INTERNATIONAL & INLAND Lighting requirements in inland waters are different from those for international waters for __________.

    N a. barges being towed astern
    N b. vessels not under command
    Y c. vessels pushing ahead
    N d. All of the above

5350: BOTH INTERNATIONAL & INLAND A vessel using a traffic separation scheme shall __________.

    Y a. avoid anchoring in areas near the termination of the scheme
    N b. avoid crossing traffic lanes, but if obliged to do so, shall cross on as small an angle as is practical
    N c. only anchor in the separation zone
    N d. use the separation zone for navigating through the scheme if she is hindering other traffic due to her slower speed

8072: INTERNATIONAL ONLY When two vessels are in sight of one another and NOT in or near an area of restricted visibility, any of the following signals may be given EXCEPT __________.

    N a. a light signal of at least five short and rapid flashes
    N b. one prolonged, one short, one prolonged, and one short whistle blasts
    Y c. four short whistle blasts
    N d. two short whistle blasts

8103: INTERNATIONAL ONLY Which vessel is NOT "restricted in her ability to maneuver"?

    N a. A vessel servicing an aid to navigation
    Y b. A vessel constrained by her draft
    N c. A towing vessel with tow, unable to deviate from its course
    N d. A vessel engaged in dredging