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.


36: INLAND ONLY Which type of vessel is NOT mentioned in the Inland Navigation Rules?


58: INLAND ONLY While underway, you sight the lights as shown, with the yellow lights flashing. You should __________. (DIAGRAM 81 )


95: INLAND ONLY You are meeting another vessel in inland waters, and she sounds one short blast on the whistle. This means that she __________.


144: INLAND ONLY A light used to signal passing intentions must be an __________.

    N a. all-round yellow light only
    N b. all-round white light only
    N c. alternating red and yellow light
    Y d. all-round white or yellow light

195: BOTH INTERNATIONAL & INLAND At night, you see the lights shown. This would indicate a vessel __________. (DIAGRAM 78 )

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

197: INTERNATIONAL ONLY A partially submerged object towed by a vessel must show during the day one __________.

    Y a. diamond shape when the length of the tow is 200 meters or less
    N b. diamond shape when the length of the tow exceeds 200 meters in length
    N c. black ball
    N d. black ball only when the length of the tow exceeds 200 meters in length

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

229: BOTH INTERNATIONAL & INLAND Vessel "A" is overtaking vessel "B" as shown. Vessel "A" is the __________. (DIAGRAM 17 )

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

364: 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 )

    N a. burdened vessel
    N b. give-way vessel
    Y c. stand-on vessel
    N d. overtaking vessel

4011: BOTH INTERNATIONAL & INLAND A pilot vessel on pilotage duty at night will show sidelights and a stern light __________.

    N a. when at anchor
    N b. only when making way
    Y c. at any time when underway
    N d. only when the identifying lights are not being shown

4021: BOTH INTERNATIONAL & INLAND A light signal of three flashes means __________.

    N a. "I am in doubt as to your actions"
    N b. "My engines are full speed astern"
    N c. "I desire to overtake you"
    Y d. "I am operating astern propulsion"

4083: BOTH INTERNATIONAL & INLAND All of the following are distress signals EXCEPT __________.

    N a. the continuous sounding of any fog signal apparatus
    Y b. giving five or more short and rapid blasts of the whistle
    N c. firing a gun at intervals of about a minute
    N d. a barrel with burning oil in it, on deck

4103: BOTH INTERNATIONAL & INLAND Which is the danger signal?

    N a. A continuous sounding of the fog signal
    N b. Firing a gun every minute
    Y c. Five or more short rapid blasts on the whistle
    N d. One prolonged blast on the whistle

4160: BOTH INTERNATIONAL & INLAND A fog signal of one short, one prolonged, and one short blast may be sounded by a __________.

    Y a. vessel at anchor
    N b. vessel not under command
    N c. vessel towing
    N d. All of the above

4288: BOTH INTERNATIONAL & INLAND A vessel is carrying three lights in a vertical line. The highest and lowest of these are red and the middle light is white. Which statement is always TRUE?

    N a. During the day, she would display three balls in a vertical line.
    Y b. If making way, she would show masthead lights at night.
    N c. If at anchor, she need not show anchor lights while displaying identifying lights.
    N d. Her fog signal would consist of a rapid ringing of a bell for five seconds every minute.

4300: BOTH INTERNATIONAL & INLAND At night, a vessel displaying the light shown is __________. (DIAGRAM 46 )

    Y a. sailing
    N b. fishing and making way
    N c. a pilot boat making way
    N d. fishing and anchored

4346: BOTH INTERNATIONAL & INLAND A vessel being towed at night must show __________.

    N a. a white all-round light, only
    Y b. sidelights and a stern light
    N c. a flashing yellow light, only
    N d. forward and after masthead lights

4384: BOTH INTERNATIONAL & INLAND In DIAGRAM 8, vessel "A" and vessel "B" (which is pushing ahead) are meeting head-on as shown. How must the vessels pass? (DIAGRAM 8 )

    N a. Vessel "A" must alter course while vessel "B" continues on its present course.
    N b. The vessels should determine which will alter course by exchanging 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.

4388: BOTH INTERNATIONAL & INLAND A stand-on vessel is __________.

    N a. required to give way in a crossing situation
    N b. required to sound the first passing signal in a meeting situation
    N c. free to maneuver in any crossing or meeting situation as it has the right-of-way
    Y d. required to maintain course and speed in a crossing situation but may take action to avoid collision

4412: BOTH INTERNATIONAL & INLAND A vessel displaying the lights shown is __________. (DIAGRAM 44 )

    N a. towing
    N b. conducting underwater survey operations
    N c. drifting
    Y d. aground

4453: BOTH INTERNATIONAL & INLAND Vessels "A" and "B" are crossing as shown. Which statement is TRUE? (DIAGRAM 30 )

    N a. The vessels should pass starboard to starboard.
    N b. Vessel "B" should pass astern of vessel "A".
    N c. Vessel "B" should alter course to the right.
    Y d. Vessel "A" must keep clear of vessel "B".

4614: BOTH INTERNATIONAL & INLAND Which vessel may show identifying lights when not actually engaged in her occupation?

    N a. A fishing vessel
    N b. A pilot vessel
    N c. A mineclearance vessel
    Y d. None of the above

4662: BOTH INTERNATIONAL & INLAND Vessel "A" (towing) and vessel "B" are meeting as shown. In this situation, which statement is TRUE? (DIAGRAM 12 )

    Y a. Both vessels should alter course to starboard and pass port to port.
    N b. Both vessels should alter course to port and pass starboard to starboard.
    N c. Vessel "A" should hold course while vessel "B" alters course to starboard.
    N d. Vessel "A" is the stand-on in this situation.

4731: BOTH INTERNATIONAL & INLAND Additional light signals are provided in the Annexes to the Rules for vessels __________.

    N a. not under command
    Y b. engaged in fishing
    N c. engaged in towing
    N d. under sail

4847: BOTH INTERNATIONAL & INLAND The rules require which factor to be taken into account when determining safe speed?

    N a. The construction of the vessel
    N b. The experience of the vessel's crew
    Y c. The location of vessels detected by radar
    N d. All of the above

6510: BOTH INTERNATIONAL & INLAND You hear the fog signal of another vessel forward of your beam. Risk of collision may exist. You MUST __________.

    Y a. take all way off, if necessary
    N b. stop your engines
    N c. begin a radar plot
    N d. All of the above

6530: BOTH INTERNATIONAL & INLAND You hear the fog signal of another vessel forward of your beam. Risk of collision may exist. You MUST __________.

    N a. stop your engines
    Y b. take all way off, if necessary
    N c. begin a radar plot
    N d. All of the above

8070: INTERNATIONAL ONLY In addition to her running lights, an underway vessel constrained by her draft may carry in a vertical line __________.

    N a. a red light, a white light, and a red light
    N b. two red lights
    N c. two white lights
    Y d. three red lights

8088: INTERNATIONAL ONLY A 20-meter power-driven vessel pushing ahead or towing alongside will display __________.

    N a. two towing lights in a vertical line
    N b. a towing light above the stern light
    N c. two all-round red lights at the masthead
    Y d. two masthead lights in a vertical line

8114: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning a situation involving a fishing vessel and a vessel not under command?

    N a. They are required to communicate by radiotelephone.
    N b. If the vessel not under command is a power-driven vessel, she must keep clear of the fishing vessel.
    Y c. The fishing vessel must keep out of the way of the vessel not under command.
    N d. Both vessels are required to take action to stay clear of each other.