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.


16: INLAND ONLY For the purpose of the Inland Navigation Rules, the term "Inland Waters" includes __________.


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 )


106: INLAND ONLY You are overtaking another power-driven vessel and sound a whistle signal indicating that you intend to pass the vessel along her starboard side. If the other vessel answers your signal with five short and rapid blasts, you should __________.


190: INLAND ONLY At night, you see the lights shown. They are shown on a __________. (DIAGRAM 75 )

    N a. barge being pushed ahead
    N b. barge being towed astern
    Y c. tug pushing a barge ahead
    N d. tug towing a barge astern

293: BOTH INTERNATIONAL & INLAND The display of lights shown could represent a __________. (DIAGRAM 48 )

    Y a. tug and a barge being towed astern
    N b. sailing vessel
    N c. a vessel not under command
    N d. a submarine on the surface

4135: BOTH INTERNATIONAL & INLAND A vessel is being propelled both by sail and by engines. Under the Rules, the vessel is __________.

    N a. a "special circumstance" vessel
    N b. not covered under any category
    N c. a sail vessel
    Y d. a power-driven vessel

4173: BOTH INTERNATIONAL & INLAND A power-driven vessel underway shall keep out of the way of a vessel __________.

    N a. not under command
    N b. restricted in her ability to maneuver
    N c. engaged in fishing
    Y d. All of the above

4213: BOTH INTERNATIONAL & INLAND Which statement concerning whistle signals is FALSE?

    N a. When a pushing vessel and a vessel pushed are connected in a composite unit, the unit sounds the fog signal of a power-driven vessel.
    N b. A vessel at anchor may sound one short, one prolonged, and one short blast.
    N c. A pilot vessel may sound an identity signal on the whistle.
    Y d. A vessel engaged in towing in fog shall sound a fog signal at intervals of one minute.

4225: BOTH INTERNATIONAL & INLAND A single towing light will be carried above a vessel's stern light __________.

    Y a. only if she is towing astern
    N b. only if the tow exceeds 200 meters
    N c. at any time when towing
    N d. if the towing vessel is part of a composite unit

4253: BOTH INTERNATIONAL & INLAND A pilot vessel on pilotage duty shall show identity lights __________.

    N a. at any time while underway
    N b. while at anchor
    N c. while alongside a vessel
    Y d. All of the above

4294: BOTH INTERNATIONAL & INLAND At night you observe a vessel ahead show three flashes of a white light. This signal indicates that the vessel ahead is __________.

    N a. in distress
    N b. approaching a bend in the channel
    Y c. operating astern propulsion
    N d. intending to overtake another vessel

4349: BOTH INTERNATIONAL & INLAND If a vessel is engaged in fishing according to the definitions in the Rules, it will have __________.

    N a. gear extending from the side or stern
    Y b. gear that restricts maneuverability
    N c. less than 50 percent trolling lines
    N d. None of the above

4357: BOTH INTERNATIONAL & INLAND A vessel 15 meters in length which is proceeding under sail as well as being propelled by machinery shall exhibit during the daytime __________.

    N a. one black ball
    N b. a basket
    Y c. a cone with its apex downward
    N d. two cones with their apexes together

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

4401: BOTH INTERNATIONAL & INLAND You are underway in heavy fog. You hear the fog signal of a vessel which is somewhere ahead of your vessel. You must __________.

    N a. slow to moderate speed and navigate with caution
    N b. maintain speed and sound the danger signal
    N c. stop engines and navigate with caution
    Y d. slow to bare steerageway and navigate with caution

4503: BOTH INTERNATIONAL & INLAND Which vessel must show a masthead light abaft of and higher than her identifying lights?

    N a. A 55-meter vessel fishing
    Y b. A 55-meter vessel trawling
    N c. A 100-meter vessel not under command
    N d. A 20-meter vessel engaged on pilotage duty

4505: BOTH INTERNATIONAL & INLAND Vessels of less than what length may not impede the passage of other vessels which can safely navigate only within a narrow channel or fairway?

    N a. 10 meters
    Y b. 20 meters
    N c. 30 meters
    N d. 40 meters

4506: BOTH INTERNATIONAL & INLAND A lantern combining the sidelights and stern light MAY be shown on a __________.

    N a. sailing vessel of 25 meters in length
    N b. 20-meter vessel engaged in fishing and making way
    N c. 25-meter power-driven vessel engaged in trolling
    Y d. 6-meter vessel under oars

4509: BOTH INTERNATIONAL & INLAND A vessel nearing a bend or an area of a channel or fairway where other vessels may be hidden by an obstruction shall __________.

    N a. sound the danger signal
    Y b. sound a prolonged blast
    N c. take all way off
    N d. post a look-out

4526: BOTH INTERNATIONAL & INLAND Which statement is TRUE concerning risk of collision?

    N a. Risk of collision never exists if the compass bearing of the other vessel is changing.
    Y b. Proper use shall be made of radar equipment to determine risk of collision.
    N c. Risk of collision must be determined before any action can be taken by a vessel.
    N d. Risk of collision exists if the vessels will pass within half a mile of each other.

4651: BOTH INTERNATIONAL & INLAND Which vessel is the stand-on vessel when two vessels crossing in fog are NOT in sight of one another?

    N a. The vessel which has the other on her own starboard side
    N b. The vessel which has the other on her own port side
    N c. The one which hears the other's fog signal first
    Y d. Neither vessel is the stand-on vessel.

4665: BOTH INTERNATIONAL & INLAND What is the minimum sound signaling equipment required aboard a vessel 10 meters in length?

    Y a. Any means of making an efficient sound signal
    N b. A bell only
    N c. A whistle only
    N d. A bell and a whistle

4678: BOTH INTERNATIONAL & INLAND Which is a light signal authorized by the Secretary of the Navy as an additional navigational light for a ship of war?

    Y a. Intermittent flashing amber (yellow) beacon for submarines
    N b. Green masthead and yardarm lights indicating mine clearance operations
    N c. Red-white-red lights in a vertical line for a carrier, launching aircraft
    N d. Yellow flares indicating torpedo firing exercises

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

4831: BOTH INTERNATIONAL & INLAND Which craft is a "power-driven vessel" under the Rules of the Road?

    N a. An auxiliary sailing vessel, using her engine
    N b. A canoe propelled by a small outboard motor
    N c. A trawler on her way to the fishing grounds
    Y d. All of the above

4846: BOTH INTERNATIONAL & INLAND In determining "safe speed", the Rules list all of the following as factors which must be taken into account EXCEPT the __________.

    N a. limitations of radar equipment
    N b. presence of background lights at night
    Y c. maximum horsepower of your vessel
    N d. maneuverability of your vessel

4872: BOTH INTERNATIONAL & INLAND If you are the stand-on vessel in a crossing situation, you may take action to avoid collision by your maneuver alone. When may this action be taken?

    N a. As soon as you determine that risk of collision exists
    N b. Only when you have reached extremis
    Y c. When it becomes apparent to you that the give-way vessel is not taking appropriate action
    N d. When you determine that your present course will cross ahead of the other vessel

8014: INTERNATIONAL ONLY A power-driven vessel leaving a quay or wharf must sound what signal?

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

8104: INTERNATIONAL ONLY Your vessel is constrained by her draft and operating in a narrow channel. Another vessel is crossing your course from starboard to port. You are in doubt as to her intentions. According to Rule 9, you __________.

    N a. should sound one short blast to indicate that you are holding course and speed
    N b. must sound one prolonged blast
    Y c. may sound the danger signal
    N d. are required to back down

8115: INTERNATIONAL ONLY Of the vessels listed, which must keep out of the way of all the others?

    N a. A vessel constrained by her draft
    N b. A vessel restricted in her ability to maneuver
    Y c. A vessel pushing a barge
    N d. A vessel engaged in fishing