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.


50: A vessel is entering port 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?


320: Containers of flammable solids should be conspicuously labeled by the shipper with a __________.


417: When inspecting wire rope that has been in use for some time, one must look for __________.


418: On a vessel proceeding from a very cold to a warm climate with a cargo of a nonhygroscopic nature in the holds, which is TRUE?

    N a. Danger of heavy ship sweat exists; constant and vigorous ventilation is required.
    Y b. There is danger of heavy cargo sweat if outside air is introduced by ventilation.
    N c. There is little danger of ship's sweat, slight possibility of cargo sweat; moderate ventilation is needed.
    N d. The possibility of any sweat problem, either cargo or ship, is remote.

437: Prior to getting underway in fresh or brackish water, the Master must __________.

    Y a. log the density of the water
    N b. secure all overboard discharges
    N c. take on fresh water ballast
    N d. clean the sides with fresh water

493: What does "end for end" mean in regard to a towing hawser?

    N a. To take the kinks out of the hawser
    N b. To fake it down in figure eights
    N c. To increase the catenary
    Y d. To swap ends of the hawser to minimize wear

646: What shape barge offers the least resistance in river towing?

    N a. A square ended barge
    Y b. Barges with spoon shaped bows
    N c. Ship-shaped barges
    N d. Hopper barges

847: When towing astern what equipment should be stowed ready for use near the towline?

    N a. First aid kit
    Y b. Axe or cutting torch
    N c. Fire extinguisher
    N d. Chafing gear

865: A nylon line is rated at 15,000 lbs. breaking strain. Using a safety factor of 5, what is the safe working load (SWL)?

    Y a. 3,000 lbs
    N b. 5,000 lbs
    N c. 15,000 lbs
    N d. 65,000 lbs

906: A snag or other underwater obstruction may form a __________.

    Y a. V-shaped ripple with the point of the V pointing upstream
    N b. V-shaped ripple with the point of the V pointing downstream
    N c. small patch of smooth water on a windy day
    N d. smoothing out of the vessel's wake

911: Which entry is NOT required in the Official Logbook?

    N a. Steering gear tests
    N b. Position of the load line and freeboard upon sailing
    Y c. Commencement and termination of cargo operations
    N d. Closure of hatches and sideports upon sailing

922: You are on watch at sea at night, and a fire breaks out in #3 hold. What would you NOT do immediately?

    N a. Shut down the cargo hold ventilation.
    N b. Sound the fire alarm signal to rouse out all hands.
    N c. Call the Master.
    Y d. Proceed to the space and inspect the extent of the fire.

957: Your vessel has completed an inspection for certification and is issued a Temporary Certificate of Inspection. The Temporary Certificate __________.

    Y a. has the full force of the regular Certificate of Inspection
    N b. expires six months after it is issued
    N c. must be exchanged for a regular Certificate of Inspection within 3 months
    N d. is retained in the custody of the Master

1064: Which factor is most likely to impair the strength and durability of synthetic line?

    N a. Dry rot
    N b. Mildew
    Y c. Sunlight
    N d. Washing with mild soap

1106: A vessel is underway with a work stage rigged over the side. A seaman may work on the stage, but only when __________.

    N a. wearing a life jacket
    N b. wearing a safety harness secured to the stage
    N c. wearing both a life jacket and a safety harness secured to the stage
    Y d. the vessel is not making way

1147: You are on watch and the pilot has just anchored the vessel. The next thing that you should do after the anchor has been let go is to __________.

    N a. stop the engines
    N b. escort the pilot to the accommodation ladder
    Y c. plot the vessel's position on the chart
    N d. make a round of the weather decks

1165: The Muster List ("Station Bill") shows each person's lifeboat station, duties during abandonment, basic instructions, and __________.

    Y a. all emergency signals
    N b. instructions for lowering the lifeboats
    N c. the time each weekly drill will be held
    N d. work schedule

1168: A vessel has completed loading cargo in the port of San Francisco. What document is signed by the Master stating the terms that goods were delivered and received by the ship?

    N a. Bill of Goods
    Y b. Bill of Lading
    N c. Cargo Manifest
    N d. Cargo Receipt

1172: You are making a sharp turn in a channel and using a buoy four points on the bow to gauge your rate of turn. If you observe the buoy moving aft relative to you, what should you do?

    Y a. Increase the rate of turn
    N b. Decrease the rate of turn
    N c. Maintain a constant rate of turn
    N d. Decrease speed

1192: A person has fallen overboard and is being picked up with a lifeboat. If the person appears in danger of drowning, the lifeboat should make __________.

    N a. an approach from leeward
    N b. an approach from windward
    Y c. the most direct approach
    N d. an approach across the wind

1208: When making a wire fast to bitts it is recommended that you __________.

    N a. use only figure eights
    N b. take 2 round turns around one bitt, then make figure eights
    Y c. take 3 round turns around both bitts, then make figure eights
    N d. alternate round turns and figure eights around both bitts

1238: A contract of affreightment is a __________.

    Y a. Bill of Lading
    N b. Bottomry Bond
    N c. manifest
    N d. Portage Bill

1265: You are picking up an unconscious person that has fallen overboard in a fresh breeze. For safety reasons a small craft should approach with the __________.

    N a. victim to leeward
    Y b. victim to windward
    N c. wind on your port side
    N d. wind on your starboard side

1329: A pelican hook __________.

    Y a. can be released while under strain
    N b. is used for boat falls
    N c. is used for extra heavy loads
    N d. is used for light loads only

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

1566: In bad weather, what length of chain should be used with a single anchor?

    N a. 3 times the depth of water
    N b. 6 times the depth of water
    Y c. 10 times the depth of water
    N d. 15 times the depth of water

1568: A tackle is "two blocked" when the blocks are __________.

    N a. equally sharing the load
    Y b. jammed together
    N c. as far apart as possible
    N d. rove to the highest mechanical advantage

1573: Which statement about splices is TRUE?

    N a. A back splice is used to permanently connect two lines together.
    Y b. A long splice is used to connect two lines that will pass through narrow openings.
    N c. A short splice is used to temporarily connect two lines.
    N d. In splicing fiber rope, you would splice with the lay of the line.

1577: You are the Chief Mate of a 30,000-DWT tankship. The vessel is engaged in trade with another country signatory to MARPOL 73/78. Which statement is TRUE?

    N a. The Certificate of Inspection serves as prima facie evidence of complying with MARPOL 73/78.
    Y b. The IOPP Certificate for an inspected vessel is valid for 5 years.
    N c. An IOPP Certificate is invalidated if the ship carries cargoes outside the classes authorized thereon.
    N d. An IOPP Certificate is renewed at each inspection for certification.

1598: On a vessel with a single propeller, transverse force has the most effect on the vessel when the engine is put __________.

    N a. full ahead
    Y b. full astern
    N c. half ahead
    N d. slow astern

1625: All inspected vessels on unrestricted ocean routes must have equipment on board for testing an individual's __________.

    N a. blood
    Y b. breath
    N c. urine
    N d. All of the above

1638: On a twin-screw, twin-rudder vessel, the most effective way to turn in your own water, with no way on, is to put __________.

    Y a. one engine ahead and one engine astern, with full rudder
    N b. one engine ahead and one engine astern, with rudders amidships
    N c. both engines ahead, with full rudder
    N d. both engines astern, with full rudder

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

1703: What is the stress on the hauling part when lifting a 4,200 lbs. weight using a threefold purchase rove to advantage? (Allow 10 percent of the weight per sheave for friction.)

    N a. 571.4
    N b. 715.2
    Y c. 960
    N d. 1066.7

1813: A snatch block would most likely be used as a __________.

    N a. boat fall
    Y b. fairlead
    N c. riding pawl
    N d. topping lift

1839: When relieving the helm, the new helmsman should find it handy to know the __________.

    N a. leeway
    N b. variation in the area
    Y c. amount of helm carried for a steady course
    N d. deviation on that heading

2104: You are proceeding to a distress site where the survivors are in liferafts. Which action will assist in making your vessel more visible to the survivors?

    N a. Steering a zigzag course with 5 to 10 minutes on each leg
    N b. Steering a sinuous course
    N c. Dumping debris over the side to make a trail to your vessel
    Y d. Making smoke in daylight

2114: All handling and stowage of packaged hazardous materials on board a domestic vessel engaged in foreign trade shall be done under the supervision of __________.

    N a. a U.S. Coast Guard Marine Inspector
    Y b. an officer assigned to the vessel
    N c. the American Bureau of Shipping
    N d. the National Cargo Bureau

2129: The exact and complete identification of all cargo on board must be found on the __________.

    Y a. Cargo Manifest
    N b. Mate's Receipt
    N c. Hatch Report
    N d. Loading List

2212: 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 in illustration D035DG. Based on this data what is the advance for a turn of 30°? (D035DG )

    N a. 380 yards
    N b. 420 yards
    Y c. 470 yards
    N d. 525 yards

2246: Cargoes that might leak from containers are known as __________.

    N a. dirty cargoes
    N b. caustic cargoes
    Y c. wet cargoes
    N d. bulk cargoes

2251: The letter I indicates the keel. Which of the following plates is NOT part of the keel? (D033DG )

    N a. Center vertical keel
    N b. Rider plate
    Y c. Longitudinal girder
    N d. Flat plate keel

2265: You are conducting trials to determine the maneuvering characteristics of your vessel. While making a turn, you take ranges and bearings of an isolated light with the results shown. Based on this information, what is the transfer for a turn of 45°? (D034DG )

    Y a. 130 yards
    N b. 165 yards
    N c. 195 yards
    N d. 230 yards

2493: Your U.S. tankship is designed to carry anhydrous ammonia in bulk. The keel was laid in 1980. Which statement concerning the carriage of this cargo is TRUE?

    N a. A flammable gas detection system must be installed in each cargo pump room.
    N b. Tanks may not be located "on deck".
    N c. Carriage of this cargo is authorized by issuance of an IMO Certificate.
    Y d. Aluminum and copper alloys are prohibited from being in valve parts in contact with the cargo.

2530: Your vessel has gone aground in waters where the tide is falling. The BEST action you can take is to __________.

    Y a. set out a kedge anchor
    N b. shift the vessel's load aft and repeatedly surge the engine(s) astern
    N c. shift the vessel's load forward and wait until the next high tide
    N d. slowly bring the engine(s) to full speed astern

2532: For a given weight of cargo, the stress on the heel block of a cargo boom __________.

    N a. increases as the cargo closes the head while hoisting
    N b. increases if the cargo runner is doubled up
    Y c. decreases as the boom is topped to a greater angle
    N d. is determined by the thrust stresses on the boom

2595: Yawing can be described as __________.

    N a. jumping on the towline as the tow pitches
    N b. jumping on the towline as the tow slams into waves
    Y c. veering from side to side on the end of the towline
    N d. corkscrew motion of the tow due to wave action

2719: Which publication would give detailed information on the commercial vessel traffic reporting system for connecting waters from Lake Erie to Lake Huron?

    N a. United States Coast Pilot - Great Lakes #6
    N b. U.S. Coast Guard Light List - Vol. VII
    Y c. Code of Federal Regulations - Title 33
    N d. The appropriate Great Lakes Navigation Chart

2761: A short ton is a unit of weight consisting of __________.

    N a. 1,000 pounds
    Y b. 2,000 pounds
    N c. 2,205 pounds
    N d. 2,240 pounds

3099: A lashing used to secure two barges side by side, lashed in an "X" fashion, is called a __________.

    N a. quarter line
    N b. back line
    N c. peg line
    Y d. jockey line

3166: The American Consul has asked the Master of a vessel bound for a port in the U.S. to transport a destitute seaman back to the U.S. Which action may the Master take?

    N a. He must always take the seaman.
    N b. He is required to accept the seaman only if the seaman is medically unfit.
    Y c. He may refuse the seaman if the seaman has a contagious disease.
    N d. He may refuse to take the seaman if he is being held by shore authorities.

3201: You are on watch entering port, and the Master gives the helmsman a rudder command which conflicts with a rudder command from the Pilot. You should make sure the helmsman __________.

    N a. obeys the Pilot
    N b. asks you for instructions
    Y c. obeys the Master
    N d. brings the rudder to a point midway between the two conflicting positions

3454: For any given pedestal crane, when the boom is lengthened, the lifting capacity is __________.

    N a. unchanged
    N b. increased
    N c. eliminated
    Y d. decreased

3565: The safety stopper that prevents the anchor cable from running free if the cable jumps the wildcat is the __________.

    Y a. riding pawl
    N b. devil's claw
    N c. buckler plate
    N d. spill pipe

3600: A helmsman receives the command "Right 15 degrees rudder." The helmsman's IMMEDIATE reply should be __________.

    N a. "Aye Aye Sir"
    Y b. "Right 15 degrees rudder"
    N c. "Rudder is right 15 degrees"
    N d. No reply is necessary, just carry out the order

3776: The tankship Northland is loaded as shown. Use the salmon colored pages in the Stability Data Reference Book to determine the sagging numeral. (Get Table Data)

    Y a. 29.70 numeral
    N b. 33.63 numeral
    N c. 49.82 numeral
    N d. 58.33 numeral

4062: The signal man assisting the crane operator has his forearm vertical, forefinger pointing up, and moves his hand in a small horizontal circle. This is the signal to __________.

    N a. swing
    N b. lower
    Y c. hoist
    N d. extend

4070: Small floes of rough, hummocky sea ice capable of damaging a vessel __________.

    Y a. can usually be detected by radar in a smooth sea at a range of 4 to 6 kilometers
    N b. are indistinguishable from sea return on the PPI
    N c. are invisible to radar when covered with a thick layer of snow
    N d. are usually seen at night before they are close enough to provide a radar echo

4130: Which lashing material is preferred when securing new cars aboard Ro-Ro vessels?

    N a. Chain lever or turnbuckle
    Y b. Webbing
    N c. Wire
    N d. None of the above