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.


30: INLAND ONLY Which signal must a power-driven vessel give, in addition to one prolonged blast, when backing out of a berth with another vessel in sight?


47: INLAND ONLY A flashing blue light is used to identify __________.


134: INLAND ONLY Which is TRUE of a vessel downbound with a following current when meeting an upbound vessel on the Western Rivers?


186: BOTH INTERNATIONAL & INLAND You see the display of lights shown. It could be a __________. (DIAGRAM 54 )

    N a. pilot vessel with a motor launch alongside
    N b. fishing vessel adrift and fishing with handlines
    Y c. fishing vessel making way
    N d. dredge making way

277: INLAND ONLY While underway you sight the lights shown with the yellow lights flashing. The lights displayed should be __________. (DIAGRAM 81 )

    Y a. visible at night and during periods of restricted visibility
    N b. visible for at least one mile
    N c. more than 50 meters apart
    N d. flashing at intervals of 120 flashes per minute

324: BOTH INTERNATIONAL & INLAND Which diagram shows the arc of visibility of a green sidelight? (DIAGRAM 23 )

    N a. A
    Y b. B
    N c. C
    N d. D

324: BOTH INTERNATIONAL & INLAND Which diagram shows the arc of visibility of a green sidelight? (DIAGRAM 23 )

    N a. A
    Y b. B
    N c. C
    N d. D

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

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

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

4004: BOTH INTERNATIONAL & INLAND At night, a barge being towed astern must display __________.

    N a. red and green sidelights only
    N b. a white stern light only
    Y c. sidelights and a stern light
    N d. one all-round white light

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

4068: BOTH INTERNATIONAL & INLAND In the situation illustrated, vessel I is a power-driven vessel. Vessel II is a sailing vessel with the wind dead aft. Which statement about this situation is correct? (DIAGRAM 2 )

    Y a. Vessel I should keep out of the way of Vessel II.
    N b. Vessel II should keep out of the way of Vessel I.
    N c. Vessel II would normally be the stand-on vessel, but should stay out of the way in this particular situation.
    N d. The Rules of Special Circumstances applies, and neither vessel is the stand-on vessel.

4078: BOTH INTERNATIONAL & INLAND You are making headway in fog and hear a fog signal of two prolonged blasts on your starboard quarter. You should __________.

    N a. stop your vessel
    N b. change course to the left
    N c. change course to the right
    Y d. hold your course and speed

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

4195: BOTH INTERNATIONAL & INLAND All of the following vessels are "restricted in their ability to maneuver" EXCEPT a vessel __________.

    N a. laying a pipeline
    N b. dredging
    N c. mineclearing
    Y d. not under command

4206: BOTH INTERNATIONAL & INLAND At night, a vessel shall indicate that she is restricted in her ability to maneuver by showing in a vertical line two __________.

    N a. red lights
    N b. red lights and two white lights
    Y c. red lights with a white light in between
    N d. white lights with a red light in between

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

4212: BOTH INTERNATIONAL & INLAND While underway your vessel approaches a bend in a river where, due to the bank, you cannot see around the bend. You should __________.

    N a. keep to the starboard side of the channel and sound one short blast
    N b. sound the danger signal
    Y c. sound one prolonged blast
    N d. slow your vessel to bare steerageway

4219: BOTH INTERNATIONAL & INLAND Your 15-meter vessel is crossing a narrow channel and a large cargo vessel to port is within the channel and crossing your course. You must __________.

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

4245: BOTH INTERNATIONAL & INLAND Underway at night, a vessel displaying the lights shown is __________. (DIAGRAM 62 )

    N a. engaged in fishing
    N b. mine sweeping
    N c. a pilot boat
    Y d. under sail

4249: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning a vessel equipped with operational radar?

    Y a. She must use this equipment to obtain early warning of risk of collision.
    N b. The use of a radar excuses a vessel from the need of a look-out.
    N c. The radar equipment is only required to be used in restricted visibility.
    N d. The safe speed of such a vessel will likely be greater than that of vessels without radar.

4386: BOTH INTERNATIONAL & INLAND While underway in fog you hear a rapid ringing of a bell ahead. This bell indicates a __________.

    Y a. vessel at anchor
    N b. vessel in distress
    N c. sailboat underway
    N d. vessel backing out of a berth

4519: BOTH INTERNATIONAL & INLAND A vessel underway and making way in fog shall sound every two minutes __________.

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

4684: BOTH INTERNATIONAL & INLAND You see a red sidelight bearing NW (315). That vessel may be heading __________.

    N a. northwest (315)
    N b. east (090)
    Y c. southwest (225)
    N d. west (270)

4728: BOTH INTERNATIONAL & INLAND Which statement is TRUE, according to the Rules?

    N a. A vessel engaged in fishing shall keep out of the way of a sailing vessel.
    N b. A vessel not under command shall keep out of the way of a vessel engaged in fishing.
    Y c. 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 d. A vessel not under command shall keep out of the way of a vessel restricted in her ability to maneuver.

4818: BOTH INTERNATIONAL & INLAND A vessel engaged in mineclearance operations shows special identity lights __________.

    N a. instead of the masthead lights
    Y b. which mean that other vessels should not approach within 1000 meters
    N c. that are 225 green lights
    N d. All of the above

4854: BOTH INTERNATIONAL & INLAND You are approaching another vessel on crossing courses. She is approximately half a mile distant on your starboard bow. You believe she will cross ahead of you but she sounds a whistle signal of five short blasts. You should __________.

    N a. sound a signal of one prolonged blast
    Y b. make a large course change
    N c. reduce speed slightly to make sure she will have room to pass
    N d. wait for another whistle signal from the other vessel

4857: BOTH INTERNATIONAL & INLAND A vessel approaching a narrow channel shall __________.

    Y a. avoid crossing the channel if it impedes another vessel navigating in the channel
    N b. not overtake any vessels within the channel
    N c. keep as close as possible to the edge of the channel on her port side
    N d. anchor only in the middle of the channel

8052: INTERNATIONAL ONLY Two power-driven vessels are meeting. A two blast whistle signal by either vessel means __________.

    N a. "I intend to alter course to port"
    N b. "I desire to pass starboard to starboard"
    N c. "I desire to pass port to port"
    Y d. "I am altering course to port"

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