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.


7: The mooring line labeled "F" is called a __________. (D044DG )


45: Which shallow water effect will increase dramatically if you increase your ship's speed past its "critical speed"?


76: Leeway is the __________.


77: When steering a vessel, a good helmsman will __________.

    N a. use as much rudder as possible to keep the vessel on course
    N b. apply rudder to move the compass card towards the lubbers line when off course
    Y c. repeat back to the watch officer any rudder commands before executing them
    N d. keep the rudder amidships except when changing course

79: Ullages on tankers are measured from __________.

    Y a. an above-deck datum such as the top of the ullage pipe
    N b. the tank ceiling aboard transversely framed vessels
    N c. the tank top
    N d. a thievage mark below the edge of the deck

115: During the course of a voyage, a seaman falls on the main deck and injures his ankle. The Master should submit a Report of Marine Accident, Injury or Death if the __________.

    N a. injury is the result of misconduct
    N b. injury results in loss of life only
    N c. injured need first aid
    Y d. injured is incapacitated

184: You are standing look-out duty at night. A dim light on the horizon will be seen quickest by looking __________.

    N a. at an area just a little below the horizon
    N b. at the horizon, where the sky and water appear to meet
    Y c. a little above the horizon
    N d. well below the horizon

198: Battens are fitted in cargo holds across the frames of the vessel from the turn of the bilge upward. The purpose of these cargo battens is __________.

    N a. for securing a snatch block when snaking cargo into the wings of the hold
    Y b. to prevent cargo from coming in contact with the vessel's frames or shell plating
    N c. to provide fittings to which cargo lashings may be secured
    N d. to support the dunnage floors which are laid down between tiers of cargo

273: You will load class 1.2 commercial explosives and need to construct a portable magazine. The magazine MUST __________.

    N a. be made of metal
    Y b. be elevated with skids 10cm (3.9 inches) above the deck
    N c. have a hinged cover
    N d. be fastened with nails or screws

287: On the cargo manifest, the weight of the cargo inside a box is called __________.

    N a. gross weight
    Y b. net weight
    N c. light weight
    N d. rate weight

325: A deck fitting, used to secure line or wire rope, consisting of a single body with two protruding horns is called a __________.

    N a. bitt
    N b. bollard
    N c. capstan
    Y d. cleat

429: A tank is loaded with 9,000 barrels of gasoline. The temperature of the product is 90°F (32°C), and it has a coefficient of expansion of .0008. What is the net amount of cargo loaded?

    N a. 8856 bbls
    Y b. 8784 bbls
    N c. 8820 bbls
    N d. 9216 bbls

442: "Ease the rudder" means to __________.

    N a. move the rudder slowly in the direction of the most recent rudder command
    Y b. decrease the rudder angle
    N c. bring the rudder amidships
    N d. steer the course which is your present heading

456: You are conning a twin-screw vessel going ahead with rudders amidships. If the port screw stops turning the bow will __________.

    Y a. go to port
    N b. go to starboard
    N c. not veer to either side
    N d. go first to port and then to starboard

467: Of which type of material may a towing hawser be constructed?

    N a. Wire rope
    N b. Nylon, dacron, polypropylene or a blend of other synthetic fibers
    N c. Manila
    Y d. All of the above

487: One method of removing kinks from fiber rope is to __________.

    N a. coil the line against the lay
    Y b. tow the line astern until it straightens
    N c. stretch the line until it reaches its elastic limit
    N d. cut out each kink and splice

550: If the towing bridle legs are not of equal length __________.

    N a. excessive strain is placed on the shorter leg
    N b. the shorter leg may fail
    N c. the longer leg is slack
    Y d. All of the above

601: Your vessel has completed an inspection for certification and is issued a temporary certificate. This __________.

    N a. expires six months after it is issued
    N b. must be exchanged for a regular Certificate of Inspection before going foreign or out of state
    Y c. has the full force of a regular Certificate of Inspection
    N d. must be posted in the vicinity of the officers' licenses

670: You must evacuate a seaman by helicopter lift. Which statement is TRUE?

    N a. The ship should be stopped with the wind off the beam while the helicopter is hovering overhead.
    N b. The basket or stretcher must not be allowed to touch the deck.
    N c. The tending line of the litter basket should be secured to the ship beyond the radius of the helicopter blades.
    Y d. The hoist line should be slack before the basket or stretcher is hooked on.

813: The Officers Competency Certificates Convention of 1936 applies to all of these vessels operating seaward of the boundary line EXCEPT a/an ___________ .

    N a. offshore supply vessel over 200 gross tons
    N b. passenger vessel of 295 gross tons
    Y c. uninspected towing vessel of less than 200 gross tons
    N d. inspected towing vessel of 305 gross tons

843: If the Master of a US-flag towing vessel replaces any crew member with a non-US citizen, he/she must ensure that the ___________ .

    N a. replacement holds a license or document equivalent in experience and training to a mariner holding US credentials
    N b. replacement can communicate with other crew members to the extent required by regulations
    N c. vessel is on a foreign voyage, outside US jurisdiction, and not operating above the US outer continental shelf
    Y d. all of the above

848: You are loading a cargo of canned goods with a stowage factor of 65. If you allow 15% for broken stowage, how many tons can be loaded in a space of 55,000 cubic feet?

    N a. 687
    Y b. 719
    N c. 846
    N d. 973

862: The term "pintle" and "gudgeon" are associated with the __________.

    N a. anchor windlass
    N b. jumbo boom
    Y c. rudder
    N d. steering engine

879: Centrifugal pumps have what advantage(s) over reciprocating pumps?

    N a. They are less expensive.
    N b. They are smaller for equivalent pumping ability.
    N c. They pump more cargo in less time.
    Y d. All of the above

886: Two vessels are abreast of each other and passing port to port in a confined waterway. What should you expect as your bow approaches the screws of the other vessel?

    N a. Your speed will significantly increase.
    N b. Your draft will significantly decrease.
    Y c. Your bow will sheer towards the other vessel.
    N d. Your bow will sheer away from the other vessel.

987: What does the helm command "shift the rudder" mean?

    N a. Stop the swing of the ship.
    N b. Shift the rudder control to the alternate steering method.
    N c. Put the rudder amidships and hold the heading steady as she goes.
    Y d. Put the rudder over to the opposite side, the same number of degrees it is now.

1082: A lashing used to secure two barges side by side, lashed in an "X" fashion, is called a __________.

    N a. backing wire
    Y b. scissor wire
    N c. face wire
    N d. breast wire

1166: You are 15 feet off a pier and docking a vessel using only a bow and stern breast line. Once the slack is out of both lines you begin to haul in on the bow breast line. What is the effect on the vessel?

    N a. The bow will come in and the stern will go out.
    N b. The whole ship moves toward the pier.
    Y c. The bow will come in and the stern will remain the same distance off the pier.
    N d. The stern will come in and the bow will remain the same distance off the pier.

1181: Uncleared crew curios remaining on board during a domestic coastwise voyage after returning from foreign should be __________.

    N a. listed in the Official Logbook
    N b. cleared prior to the next foreign voyage
    Y c. noted in the Traveling Curio Manifest
    N d. retained under locked security by the owner

1240: Bilge keels are fitted on ships to __________.

    N a. assist in dry dock alignment
    N b. improve the vessel's stability
    N c. protect the vessel from slamming against piers
    Y d. reduce the rolling of the vessel

1242: You are a watchstanding mate and have come to the bridge to relieve the watch while underway at sea. The watch should not be transferred __________.

    N a. during an engine speed change
    Y b. during a navigational course change
    N c. unless the helm is in the "hand" mode
    N d. All of the above

1312: In illustration D044DG, the mooring line labeled "D" is called a(n) __________. (DO44DG )

    N a. stern line
    N b. forward spring line
    Y c. after spring line
    N d. waist breast line

1401: A clause in the charter party requires a vessel's owner to pay dispatch money when the vessel __________.

    N a. changes berths to expedite loading or discharging
    N b. does not load and discharge its cargo in the time specified
    N c. is not ready to load or discharge cargo
    Y d. loads and discharges its cargo in less time than specified

1434: In the manufacture of wire rope, if the wires are shaped to conform to the curvature of the finished rope before they are laid up, the rope is called __________.

    N a. composite
    N b. left-lay
    N c. improved
    Y d. preformed

1583: Which statement concerning a short splice is TRUE?

    N a. It is used to temporarily join two lines together.
    Y b. A short splice is stronger than two lines joined by a knot.
    N c. A short splice decreases the diameter of the line.
    N d. None of the above

1642: Which illustration represents a carrick bend? (DO30DG )

    N a. H
    N b. J
    N c. L
    Y d. M

1670: The term "strake" is used in reference to __________.

    N a. rudder mountings
    N b. anchor gear
    Y c. hull plating
    N d. vessel framing

1671: The number of certificated able seamen and lifeboatmen required on a vessel is determined by the __________.

    N a. International Maritime Organization
    N b. Corps of Engineers
    Y c. Coast Guard
    N d. American Bureau of Shipping

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

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

1835: Your vessel's operators send a message that your vessel has been consigned to Naval Control of Shipping. The message will refer you to __________.

    Y a. Radio Aids to Navigation (PUB 117)
    N b. the Coast Pilot
    N c. the International Code of Signals (PUB 102)
    N d. the Light List

1905: You have a large, broken-down vessel in tow with a wire rope and anchor cable towline. Both vessels have made provision for slipping the tow in an emergency; however, unless there are special circumstances __________.

    Y a. the towing vessel should slip first
    N b. the vessel towed should slip first
    N c. they should slip simultaneously
    N d. either vessel may slip first

1930: The holding capabilities of an anchor are determined PRIMARILY by the __________.

    N a. design of the anchor
    N b. weight of the anchor
    Y c. scope of the anchor chain
    N d. size of the vessel

2273: What is the area of a circle with a radius of 4 feet after a sector of 111° has been removed?

    N a. 3.90 sq. ft
    N b. 8.67 sq. ft
    Y c. 34.77 sq. ft
    N d. 50.27 sq. ft

2282: Using the graph in illustration D008DG, if the dry bulb temperature is 77° and the wet bulb temperature is 69°, what is the relative humidity in a cargo hold? (D008DG )

    Y a. 67%
    N b. 70%
    N c. 77%
    N d. 81%

2291: Before a Master relieves a Pilot of the conn, the __________.

    N a. Master must first request the Pilot to take corrective action
    N b. Master should agree to sign a release of liability form
    Y c. Master should foresee any danger to the vessel on the present course
    N d. vessel must be in extremis

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

2347: What is an advantage of having wire rope with a fiber core over that of a wire rope of the same size with a wire core?

    N a. Fiber core rope offers greater strength.
    Y b. Fiber core rope offers greater flexibility.
    N c. Fiber core rope can be used at higher operating temperatures.
    N d. Fiber core rope is the only type authorized for cargo runners.

2384: What is the volume of a sphere with a radius of 3 feet?

    Y a. 113.08 cubic ft.
    N b. 96.57 cubic ft.
    N c. 37.69 cubic ft.
    N d. 28.23 cubic ft.

2391: Determine the weight of a rectangular piece of 40.8 lbs. steel measuring 3 feet by 5 feet.

    N a. 326.4 lbs
    N b. 453.6 lbs
    Y c. 612.0 lbs
    N d. 1224.0 lbs

2652: You are using the anchor to steady the bow while maneuvering. You have the proper scope of anchor cable when the __________.

    Y a. bow is held in position with the engines coming slowly ahead
    N b. anchor is just touching the bottom
    N c. scope is not more than 5 times the depth of the water
    N d. cable enters the water at an angle between 60° and 85° from the horizontal

2960: When cutting wire rope, seizings are put on each side of the cut. The seizings prevent the wire from unlaying and also __________.

    Y a. maintain the original balance of the tension in the wires and strands
    N b. prevent moisture from entering between the wires at the cut end
    N c. forces lubricant from the core to protect the raw, cut end
    N d. All of the above

2977: You are proceeding under NCS (Naval Control of Shipping) when you wish to send a message concerning your ships diversion. Which precedence would you assign this message?

    Y a. P (PRIORITY)
    N b. Z (FLASH)
    N c. R (ROUTINE)
    N d. O (IMMEDIATE)

3062: How should you signal the crane operator to swing?

    N a. With both arms extended out and palms down, move arms back and forth.
    N b. With arm extended downwards and forefinger pointing down, move hand in small horizontal circles.
    Y c. Extend arm and point finger in the direction to move the boom.
    N d. Place both fists in front of the body with the thumbs pointing outward.

3144: A tow consists of 8 barges: 6 jumbo barges made up 3 abreast and 2 long, with 2 standard barges abreast as lead barges. How long is this tow?

    N a. 525 feet
    N b. 545 feet
    Y c. 565 feet
    N d. 595 feet

3340: It is NOT advisable to use nylon for alongside towing because it __________.

    Y a. stretches too much
    N b. is too difficult to make fast
    N c. parts too readily
    N d. is too susceptible to mildew

3489: You are lifting a 5-ton weight with a single whip rove on a swinging boom set at an angle of 60° to the horizontal. Use the formula for the size of a shackle with a safe working load and determine the minimum size shackle that should be used to secure the head block to the boom?

    N a. 1 inch
    N b. 1 3/8 inch
    N c. 1 1/2 inch
    Y d. 1 7/8 inch

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.

4102: What characterizes a Ro-Ro vessel?

    N a. May carry up to 24 passengers
    Y b. High freeboard and sail area
    N c. Long port stays required for cargo securing
    N d. Lightweight securing equipment trailers

4185: How could lashing gear used aboard Ro-Ro vessels be stowed when not in use?

    N a. Drape along brackets
    N b. Hang vertically in a sheltered area
    N c. Stow in bins at hatch coming side
    Y d. All of the above

4269: Which action(s) should the operator of a pedestal crane take if crane control is lost?

    N a. Let go of both control levers and return to neutral position.
    N b. Press the emergency stop.
    N c. Notify the mate on watch.
    Y d. All of the above