USCG General Deck: 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.


17: The mooring line labeled "E" is called a(n) __________. (DO44DG )


42: The vapor pressure of a substance __________.


74: The best information on the location of the blocks when dry docking a vessel is contained in the __________.


91: You are the person in charge of a 199 GRT uninspected towing vessel engaged in coastwise towing from the Gulf of Mexico to New York, a distance in excess of 600 miles. Which statement is FALSE?

    N a. The deckhands shall be divided into 3 watches.
    N b. Able seamen are required in the deck crew.
    N c. All crew members shall have Merchant Mariner's Documents.
    Y d. Certificates of Discharge are not required to be issued.

109: What is meant by "thieving" a petroleum cargo?

    N a. Adjusting the cargo figures to coincide with the draft
    Y b. Determining the amount of water (if any) in each cargo tank
    N c. Reducing the gross cargo calculations to net amounts
    N d. Siphoning off a few barrels of petroleum for shipboard use

291: You are the licensed operator of a 100 GT towing vessel making coastwise runs. Whenever a crew member is discharged from your vessel you must __________.

    N a. issue a Certificate of Discharge and make an entry in his Continuous Discharge Book
    Y b. issue a Certificate of Discharge or make an entry in his Continuous Discharge Book
    N c. retain the crew member's Continuous Discharge Book onboard
    N d. retain the crew member's Certificate of Discharge onboard

324: A "chock" is a __________.

    N a. deck fitting used to secure mooring lines
    Y b. casting fitted at the side of a weather deck, used as a fairlead
    N c. sharp block of wood used to support hygroscopic cargo
    N d. smoke pipe for the galley stove

427: What is the greatest danger of an overriding tow?

    N a. Fouling of the towing hawser
    N b. Loss of steering
    N c. Tripping
    Y d. Collision between the tow and the stern of the towing vessel

552: Which type of bridle is the most effective for a heavy ocean tow?

    N a. Nylon because of its strength
    N b. Polypropylene because it floats and is easier to handle
    Y c. Stud link anchor chain for chafe resistance and strength
    N d. Wire rope for flexibility and strength

572: A vessel is entering port "A" for the first time and has a Pilot conning the vessel. The Master is unsure that the Pilot is taking sufficient action to prevent a collision. What should the Master do?

    N a. Nothing; The Pilot is required by law and is solely responsible for the safety of the vessel.
    N b. State his concerns to the Pilot but do not interfere with the handling of the vessel.
    N c. Direct the Pilot to stop the vessel and anchor if necessary until the situation clears.
    Y d. Recommend an alternative action and if not followed relieve the Pilot.

616: "Ice blink" is __________.

    N a. the dark appearance of the underside of a cloud layer due to reflection of a surface of open water
    N b. the soft light appearance on the underside of a cloud layer due to reflection from a surface of open water
    Y c. the yellowish-white glare on the underside of a cloud layer
    N d. "water sky"

720: You suspect that a crewmember has fallen overboard during the night and immediately execute a Williamson turn. What is the primary advantage of this maneuver under these circumstances?

    Y a. You will be on a reciprocal course and nearly on the track-line run during the night.
    N b. The turn provides the maximum coverage of the area to be searched.
    N c. The turn enables you to reverse course in the shortest possible time.
    N d. You have extra time to maneuver in attempting to close in on the man for rescue.

722: A tow can override its tug as a result of __________.

    N a. a mechanical breakdown on the tug
    N b. adverse tidal current conditions
    N c. the tug reducing its speed
    Y d. All of the above

729: A petroleum liquid has a flash point of 85°F. This is a grade __________.

    N a. B flammable liquid
    N b. C flammable liquid
    Y c. D combustible liquid
    N d. E combustible liquid

870: The terms "ceiling" and "margin plate" are associated with the __________.

    N a. crew's quarters
    N b. engine room
    N c. main deck
    Y d. tank top

1031: Which certificate is NOT issued by the Coast Guard?

    N a. Award of official number
    N b. Certificate of Inspection
    Y c. Classification of Hull and Machinery
    N d. Safety Equipment Certificate

1126: You are approaching a pier and intend to use the port anchor to assist in docking port side to. You would NOT use the anchor if __________.

    N a. the current was setting you on the pier
    N b. another vessel is berthed ahead of your position
    N c. the wind was blowing from the starboard side
    Y d. there is shallow water enroute to the berth

1155: In the context of shiphandling, what would be the definition of shallow water?

    Y a. Water depth of less than twice a vessel's draft
    N b. Water depth of less than 1½ times a vessel's draft
    N c. Under keel clearance of twice a vessel's draft
    N d. Under keel clearance of less than 10 feet

1156: The best time to work a boat into a slip is __________.

    N a. when the wind is against you
    N b. with the current setting against you
    Y c. at slack water
    N d. with a cross current

1228: A cargo exception would appear on __________.

    Y a. a Bill of Lading
    N b. the cargo manifest
    N c. the Export Declaration
    N d. a Letter of Indemnity

1231: What is NOT a condition for a salvage claim?

    N a. The property saved must be "maritime property."
    Y b. The salvors must save or attempt to save any life in peril.
    N c. The salvage service must be voluntary.
    N d. The property must be in peril.

1246: When a tug is pulling on a hawser at right angles to the ship, and the pilot wants to come ahead or astern on the ship's engine, care must be taken that the pilot __________.

    N a. does not break the towline
    Y b. does not get too much way on the vessel
    N c. keeps a steady course so the towline will remain tight
    N d. turns the ship toward the direction of pull

1476: How is the size of chain determined?

    N a. Length of link in inches
    Y b. Diameter of metal in link in inches
    N c. Links per fathom
    N d. Weight of stud cable in pounds

1550: Keel scantlings of any vessel are greatest amidships because __________.

    N a. connections between forebody and afterbody are most crucial
    Y b. of maximum longitudinal bending moments
    N c. of severest racking stresses
    N d. resistance to grounding is at a maximum amidships

1679: Manila slings should not be used to load __________.

    N a. cotton
    N b. lumber
    Y c. steel
    N d. tires

1888: How many legs does the bridle for an ocean tow have?

    N a. One
    Y b. Two
    N c. Three
    N d. Four

1893: A block and tackle is "rove to advantage". This means that the __________.

    N a. blocks have been overhauled
    N b. hauling parts of two tackles are attached
    Y c. hauling part leads through the movable block
    N d. hauling part leads through the standing block

1958: When tandem tug towing, the more powerful of the two tugs should be __________.

    N a. the lead tug
    Y b. behind the lead tug
    N c. towing at a right angle to the smaller tug
    N d. towing at a faster speed than the smaller tug

1966: The turning circle of a vessel making a turn of over 360 degrees is the path followed by the __________.

    N a. bow
    N b. bridge
    Y c. center of gravity
    N d. centerline

2028: When making up a long, large coastwise tow, which of the following procedures is INCORRECT?

    N a. A chain towing bridle is generally preferred
    N b. Safety shackles should be used when connecting to the fishplate
    N c. Rig tripping ropes (retrieving lines)
    Y d. Back-up wires are left slack

2085: What purpose does a bridge fitting serve when lashing containers?

    N a. Ties a container stack to the deck
    N b. Ties a container to the container below it
    N c. Restrains racking loads
    Y d. Restrains the container against horizontal motion

2095: You are using a racetrack turn to recover a man overboard. The vessel is first steadied when how many degrees away from the original heading?

    N a. 60° to 70°
    N b. 90°
    N c. 135°
    Y d. 180°

2120: Wale shores would be used when dry docking a vessel with __________.

    N a. tumble home
    Y b. excessive deadrise
    N c. excessive trim
    N d. a list

2147: What is the name of tackle number 8? (DO29DG )

    N a. Parbuckle
    Y b. Gun tackle
    N c. Single purchase
    N d. Single luff tackle

2148: You are the Master of an uninspected diesel towing vessel of 190 GT operating on a regular run from New York to the Gulf of Mexico. Which statement is TRUE?

    Y a. All crew members must have Merchant Mariner's Documents.
    N b. A licensed Chief Engineer is required.
    N c. Deck watches may be 6 and 6.
    N d. Able Seamen are not required in the deck crew.

2157: You are in a fresh water port loading logs with gear rated at 5 tons, and suspect the weight of the logs exceeds the SWL of the gear. The logs are floating in the water alongside the vessel and have 95% of their volume submerged. The average length of the logs is 15 feet and the average diameter is 4.4 feet. What is the nearest average weight of the logs, based on these average measurements?

    N a. 5.5 tons
    Y b. 6.0 tons
    N c. 7.7 tons
    N d. 24.1 tons

2228: You have determined the maneuvering characteristics of your vessel by taking the radar ranges and bearings of an isolated light while making a turn. The results are listed. Based on this data what is the transfer for a turn of 60°? (D035DG )

    Y a. 140 yards (126 meters)
    N b. 180 yards (162 meters)
    N c. 225 yards (203 meters)
    N d. 270 yards (243 meters)

2249: Which knot should be used to secure a line to a spar when the pull is parallel to the spar? (DO30DG )

    N a. G
    N b. F
    Y c. P
    N d. Q

2302: What is NOT required to be approved or certified by the U.S. Coast Guard before being used on inspected vessels?

    N a. Lifesaving equipment that is in excess of the regulatory minimum
    N b. Ship's stores that are Class A poisons or Class A explosives
    Y c. Steel plate used in hull construction
    N d. EPIRBs

2539: The distance between rivets in a row is known as the __________.

    N a. arm
    Y b. pitch
    N c. gage
    N d. rivet distance

2546: The dangerous cargo manifest does NOT indicate __________.

    N a. the stowage location of hazardous material aboard the vessel
    N b. a description of the packaging (drums, boxes, etc.)
    N c. UN identification numbers
    Y d. the net weight of each hazardous cargo

2578: According to regulations when, if ever, may cargo hatches on Great Lakes vessels, with more than 6 feet of freeboard, be left uncovered or open while the vessel is being navigated?

    N a. If a Mate deems it necessary for ship's maintenance
    Y b. At the discretion of the Master, for reasonable purposes
    N c. On the authority of the Bosun
    N d. The hatch may never be uncovered

2664: You must shore up a bulkhead due to solid flooding forward. The bulkhead approximates a rectangle. The center of pressure of the shores on the bulkhead should be located __________.

    N a. evenly over the surface of the bulkhead
    N b. approximately one-third of the way up the bulkhead
    Y c. approximately halfway up the bulkhead
    N d. at the bottom of the bulkhead

3009: While loading cargo, a white trimming light on the starboard side comes on. This indicates that __________.

    Y a. the vessel has a list of about 1` to starboard
    N b. the chutes should be directed to the starboard side
    N c. the chutes in No. 1 hold should be directed to the starboard side
    N d. a severe list to starboard has developed and all loading should cease

3042: A Great Lakes vessel bound for Anticosti Island is exempt from the IMO Grain Regulations if the vessel meets all of the following standards EXCEPT __________.

    N a. the metacentric height corrected for free surface must meet regulatory minimums throughout the voyage
    Y b. slack surfaces should be in a mound
    N c. the longitudinal strength of the vessel must not be imperiled
    N d. the Master must ascertain the expected weather conditions enroute

3069: Atmospheres laden with coal dust or grain dust caused by loading these cargoes __________.

    N a. require loading operations to be shut down until the atmosphere clears
    N b. are toxic to human life
    N c. are subject to spontaneous combustion
    Y d. may be explosive in some concentrations

3122: When a tug is "in irons", she __________.

    N a. is made fast to the dock with engines secured
    N b. is in dry dock
    Y c. may be in danger of being overrun by her tow
    N d. should pay out more towline

3242: What term indicates the line drawn at the top of the flat plate keel?

    Y a. Base line
    N b. Molded line
    N c. Designer's waterline
    N d. Keel line

3346: When connecting the tow bridle to a tug, the end of the bridle is passed with a __________.

    N a. heaving line
    N b. shot line
    N c. high line
    Y d. messenger line

3576: Heave is motion along the __________.

    N a. longitudinal axis
    N b. transverse axis
    Y c. vertical axis
    N d. centerline axis

3662: Unless extremely flexible wire rope is used, the sheave diameter should always be as large as possible, but should never be less than __________.

    Y a. 20 times the rope diameter
    N b. 10 times the rope diameter
    N c. 2 times the rope diameter
    N d. the rope diameter

4016: Which statement is TRUE concerning weather conditions on the Great Lakes?

    N a. When a vessel is south of an eastward-moving storm center, the approach of the low is evidenced by winds from the north to northeast.
    Y b. When a vessel is north of an eastward-moving storm center, changes in the weather are less distinctive than when sailing south of the center.
    N c. The most destructive storms usually come from the northwest or north.
    N d. Thunderstorms are most likely to develop from November through April.

4044: You are arriving in port and are assigned to anchor in anchorage circle B-4. It has a diameter of 500 yards and your vessel's LOA is 484 feet. If you anchor in 8 fathoms at the center of the circle, what is the maximum number of shots of chain you can use and still remain in the circle?

    N a. 6 shots
    N b. 5 shots
    N c. 4 shots
    Y d. 3 shots

4047: Your vessel is to dock bow in at a pier. Which line will be the most useful when maneuvering the vessel alongside the pier?

    N a. Inshore head line
    Y b. Bow spring line
    N c. Stern breast line
    N d. Bow breast line

4072: How should you signal the crane operator to stop in an emergency?

    N a. Extend arm with the palm down and hold this position rigidly.
    N b. Place clasped hands in front of your body.
    Y c. Extend arm and move hand rapidly right and left with the palm down.
    N d. Place both fists in front of the body with the thumbs pointing outward.

4181: Which lashing gear used aboard Ro-Ro vessels should be painted or soaked in oil when not in use?

    N a. Wire rope.
    Y b. Chain
    N c. Webbing
    N d. All of the above

4202: Which of the following statements is/are TRUE concerning cranes being installed on the centerline of vessels?

    N a. One crane is able to work both sides of the ship.
    N b. One crane is able to work one end of two adjacent hatches.
    N c. They are more economical and weigh less.
    Y d. All of the above

4253: Which of the following statement(s) is/are TRUE regarding twin pedestal cranes?

    N a. Each single boom is of the partial-level luffing type and is capable of limited rotation.
    N b. A slew drive system provides for rotation of each crane.
    N c. An independent slew drive system rotates the turntable.
    Y d. All of the above

4275: During which condition should the operator of a pedestal crane shutdown operations?

    N a. Lightning
    N b. High winds
    N c. Fire aboard
    Y d. All of the above

4382: What does item "C" refer to in this illustration of a 30-ton pedestal crane? (D045DG )

    N a. Equalizing beam
    N b. Hoist fall spreader
    Y c. Rider block
    N d. Block/hook assembly