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.


48: INLAND ONLY Which statement is TRUE concerning the fog signal of a vessel 15 meters in length, anchored in a "special anchorage area" approved by the Secretary?


68: INLAND ONLY Which is CORRECT regarding a "special flashing light"?


74: INLAND ONLY Which term is NOT used in the Inland Navigation Rules?


140: INLAND ONLY You are the stand-on vessel in a crossing situation. The other vessel is showing an alternating red and yellow light. Which action should you take?

    Y a. Stand on.
    N b. Heave to.
    N c. Alter course to assist.
    N d. Yield the right-of-way.

270: INLAND ONLY Two power-driven vessels are meeting in a narrow channel as shown. Which statement is TRUE? (DIAGRAM 37 )

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

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

4016: 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 radar equipment is only required to be used in restricted visibility.
    N c. The use of a radar excuses a vessel from the need of a look-out.
    N d. The safe speed of such a vessel will likely be greater than that of vessels without radar.

4022: BOTH INTERNATIONAL & INLAND A sailing vessel underway may exhibit __________.

    Y a. a red light over a green light at the masthead
    N b. a green light over a red light at the masthead
    N c. two white lights in a vertical line at the stern
    N d. an all-round white light at the bow

4034: BOTH INTERNATIONAL & INLAND A vessel "restricted in her ability to maneuver" is one which __________.

    Y a. from the nature of her work is unable to maneuver as required by the rules
    N b. through some exceptional circumstance is unable to maneuver as required by the rules
    N c. due to adverse weather conditions is unable to maneuver as required by the rules
    N d. has lost steering and is unable to maneuver

4042: BOTH INTERNATIONAL & INLAND A towing vessel pushing a barge ahead and rigidly connected in a composite unit shall show the lights of __________.

    N a. a vessel pushing ahead
    Y b. a power-driven vessel, not towing
    N c. a barge being pushed ahead
    N d. either answer A or answer B

4099: BOTH INTERNATIONAL & INLAND During the day, a dredge will indicate the side on which it is safe to pass by displaying __________.

    N a. two balls in a vertical line
    Y b. two diamonds in a vertical line
    N c. a single black ball
    N d. no shape is shown during the day

4147: BOTH INTERNATIONAL & INLAND Which vessel would have no white lights visible when meeting her head-on?

    N a. A vessel trawling
    N b. A vessel restricted in her ability to maneuver
    N c. A vessel mineclearing
    Y d. A vessel not under command

4171: BOTH INTERNATIONAL & INLAND A vessel engaged in fishing, and at anchor, shall show __________.

    N a. an anchor light
    N b. sidelights and a stern light
    N c. three lights in a vertical line, the highest and lowest being red, and the middle being white
    Y d. None of the above

4174: BOTH INTERNATIONAL & INLAND A vessel sounding a fog signal of one short, one prolonged, and one short blast is indicating that the vessel is __________.

    N a. fishing
    N b. in distress
    Y c. at anchor
    N d. not under command

4184: BOTH INTERNATIONAL & INLAND You are approaching another vessel at night. You can see both red and green sidelights and, above the level of the sidelights, three white lights in a vertical line. The vessel may be __________.

    N a. not under command
    Y b. towing a tow more than 200 meters astern
    N c. trawling
    N d. underway and dredging

4237: BOTH INTERNATIONAL & INLAND At night, which lights would you see on a vessel engaged in fishing, other than trawling?

    N a. Two red lights, one over the other
    N b. A green light over a red light
    Y c. A red light over a white light
    N d. A white light over a red light

4271: BOTH INTERNATIONAL & INLAND A tug is towing three manned barges in line in fog. The third vessel of the tow should sound __________.

    N a. no fog signal
    N b. one prolonged and two short blasts
    Y c. one prolonged and three short blasts
    N d. one prolonged, one short and one prolonged blast

4272: BOTH INTERNATIONAL & INLAND A power-driven vessel, when towing another vessel astern shall show the light(s) in Diagram __________. (DIAGRAMS 46, 54, 60 )

    N a. 75
    Y b. 60
    N c. 54
    N d. 46

4425: BOTH INTERNATIONAL & INLAND A power-driven vessel exhibits the same lights as a __________.

    N a. vessel towing, when not underway
    N b. vessel towing astern
    N c. sailing vessel
    Y d. pushing vessel and a vessel being pushed, when they are in a composite unit

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

4588: BOTH INTERNATIONAL & INLAND While underway in fog, you hear a vessel ahead sound two prolonged blasts on the whistle. You should __________.

    N a. sound two blasts and change course to the left
    N b. sound whistle signals only if you change course
    Y c. sound only fog signals until the other vessel is sighted
    N d. not sound any whistle signals until the other vessel is sighted

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

4660: BOTH INTERNATIONAL & INLAND In fog you observe your radar and determine that risk of collision exists with a vessel which is 2 miles off your port bow. You should __________.

    N a. stop your engines
    N b. sound the danger signal at two-minute intervals
    N c. hold course and speed until the other vessel is sighted
    Y d. take avoiding action as soon as possible

4661: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning a towing vessel which, due to the nature of her work, is unable to keep out of the way of another vessel?

    N a. By day, she shall carry a black cylinder shape.
    N b. By day, she shall carry two black balls in a vertical line.
    N c. By night, she would show the same lights as a vessel not under command.
    Y d. By day, she would show the same shapes as a vessel restricted in her ability to maneuver.

4685: BOTH INTERNATIONAL & INLAND What does the word "breadth" mean?

    Y a. Greatest breadth
    N b. Molded breadth
    N c. Breadth on the main deck
    N d. Breadth at the load waterline

4700: BOTH INTERNATIONAL & INLAND What does the word "length" refer to?

    N a. Length between the perpendiculars
    Y b. Length overall
    N c. Waterline length
    N d. Registered length

4729: 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.
    Y b. 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 c. A vessel not under command shall 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 engaged in fishing.

8004: INTERNATIONAL ONLY When moving from a berth alongside a quay (wharf), a vessel must sound __________.

    N a. three short blasts
    N b. a long blast
    N c. a prolonged blast
    Y d. No signal is required.

8009: INTERNATIONAL ONLY You are underway on the high seas in restricted visibility. You hear a fog signal of one prolonged and two short blasts. It could be any of the following EXCEPT a vessel __________.

    N a. minesweeping
    N b. engaged in fishing
    N c. constrained by her draft
    Y d. being towed

8071: INTERNATIONAL ONLY Which vessel is NOT regarded as being "restricted in her ability to maneuver"?

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