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.


31: An embarked Pilot __________.


67: You are in charge of a U.S. documented vessel. Under title 46 of the United States Code, if you fail to report a complaint of a sexual offense, you may be __________.


68: Odorous cargoes are those that __________.


92: You start a centrifugal cargo pump to discharge cargo. The pump works for a while and then loses suction. This could be caused by __________.

    N a. the pump running backwards
    Y b. incomplete priming
    N c. the discharge head being too high
    N d. All of the above

131: You are onboard a 120 GT uninspected sea going tug which carries one Master and one mate of towing vessels, and four seamen when underway. How many of the four seamen must have a rating as able seamen if the voyage is under 600 miles?

    N a. 1
    Y b. 2
    N c. 3
    N d. 4

148: Overcarriage is best prevented by __________.

    N a. assuring heavy cargo is stowed low in the vessel
    N b. checking the vessel's load line calculations carefully
    Y c. inspection of the hold at completion of discharge
    N d. stowing the cargo which is to be discharged last on the bottom

155: You are transporting dangerous cargo on your vessel. You must inspect this cargo __________.

    Y a. daily
    N b. daily, at sea only
    N c. after encountering rough weather
    N d. after loading and prior to arrival in port only

200: Which statement concerning a 298 GRT inspected tug engaged in towing from Seattle, WA, to Alaska is TRUE?

    N a. No able seamen are required.
    N b. Crew must be signed on before a Shipping Commissioner.
    N c. A licensed Master of Towing Vessels may serve as Master.
    Y d. Each crew member must be issued a certificate of discharge at the time of discharge.

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

    N a. green label
    Y b. red and white label
    N c. orange label
    N d. yellow label

364: A long ton is __________.

    N a. 1,000 pounds
    N b. 2,000 pounds
    Y c. 2,240 pounds
    N d. 2,400 pounds

374: Holes in the bulwark, which allow deck water to drain into the sea, are __________.

    N a. doggers
    N b. fidleys
    Y c. freeing ports
    N d. swash ports

409: A tanker is loaded with 5,000 barrels of petroleum. The cargo was loaded at a temperature of 70°F, and the coefficient of expansion is .0004. What is the net amount in barrels of cargo loaded?

    N a. 4800
    Y b. 4980
    N c. 5020
    N d. 5200

440: If a Master must jettison a container loaded with hazardous material, he must, as soon as possible, notify the __________.

    N a. National Cargo Bureau
    N b. Environmental Protection Agency
    N c. National Hazardous Chemical Response Center
    Y d. nearest Captain of the Port

446: A twin-screw vessel can clear the inboard propeller and maneuver off a pier best by holding a(n) __________.

    N a. forward spring line and going slow ahead on the inboard engine
    N b. after spring line and going slow astern on the outboard engine
    N c. forward spring line and going slow ahead on both engines
    Y d. forward spring line and going slow ahead on the outboard engine

564: The anchors on the bow are known as __________.

    Y a. bower anchors
    N b. kedge anchors
    N c. spare anchors
    N d. stream anchors

595: The turning circle of a vessel is the path followed by the __________.

    N a. outermost part of the ship while making the circle
    Y b. center of gravity
    N c. bow
    N d. tipping center

599: When stripping a tank, excessive air in the suction line may cause __________.

    N a. an over pressurized line
    N b. back pressure
    Y c. loss of suction
    N d. increase of suction

685: Which type of ballast is most commonly used in barges and ships?

    Y a. Water
    N b. Oil
    N c. Concrete and barite
    N d. Sand, rock and gravel

828: Your vessel's available bale cubic capacity is 625,000 and her available cargo capacity is 10,000 deadweight tons. Disregarding broken stowage, how many tons of pyrite (stowage factor - 13) and how many tons of cork (s.f. - 150) must be loaded to be full and down?

    Y a. 6387 tons pyrite, 3613 tons cork
    N b. 6721 tons pyrite, 3279 tons cork
    N c. 7500 tons pyrite, 2500 tons cork
    N d. 9133 tons pyrite, 867 tons cork

841: All entries in the Official Logbook must be signed by the Master and __________.

    N a. the Union Representative
    N b. the person about whom the entry concerns
    N c. no one else
    Y d. one other crew member

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

909: What is the purpose of the relief valve of a cargo pump?

    N a. Provides for the removal of vapors
    N b. Allows two or more tanks to be filled at the same time
    N c. Provides for the emergency shutdown of the pump
    Y d. Permits the return of cargo to the suction side of the pump

916: A condition where two currents meet at the downstream end of a middle bar can be determined by a __________.

    N a. small whirlpool
    N b. smooth patch of water
    Y c. V-shaped ripple with the point of the V pointing downstream
    N d. V-shaped ripple with the point of the V pointing upstream

985: You have the "conn" at the time the helmsman who is steering by hand reports that the rudder is not responding to the wheel. Your FIRST action should be to __________.

    N a. call the engineroom and report that you have lost steering
    N b. signal the engineroom to stop the engines
    Y c. shift the selector switch to the other steering system
    N d. call the Master

1130: The fittings used to secure a watertight door are known as __________.

    N a. clamps
    N b. clasps
    Y c. dogs
    N d. latches

1139: The pivoting point of a vessel going ahead is __________.

    N a. near the stern
    N b. at the hawsepipe
    Y c. about one-third of the vessel's length from the bow
    N d. about two-thirds of the vessel's length from the bow

1211: When clearing a vessel for a foreign voyage, the original crew list is duly certified by proper authority. In a U.S. port, this authority is the U.S. __________.

    N a. Coast Guard
    Y b. Customs
    N c. Immigration Service
    N d. Public Health Service

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

1305: What is an advantage of the 6X19 class of wire rope over the 6X37 class of wire rope of the same diameter?

    N a. Greater holding power
    N b. Better for towing
    N c. More resistance to elongation
    Y d. More resistance to corrosion

1314: A wire rope rove through two single blocks with two parts at the moving block is used for a boat fall. The weight of the 100-person boat is 5 tons. Compute the required breaking strain. Safety Factor - 6, weight per person - 165 lbs., 10% friction per sheave (2 sheaves).

    N a. 18.30 tons B.S.
    N b. 20.29 tons B.S.
    Y c. 22.27 tons B.S.
    N d. 24.31 tons B.S.

1538: Your vessel is being towed and you are using a tripping rope. A tripping rope of fiber or wire is used to __________.

    N a. give added strength to the main tow hawser
    N b. retrieve the main tow hawser
    Y c. retrieve the outboard legs of the bridle where they are connected to the fishplate
    N d. open the pelican hook at the fishplate

1660: The strake on each side of the keel is called a __________.

    N a. sheer strake
    N b. gatewood strake
    N c. insulation strake
    Y d. garboard strake

1662: Under defense plans, operation of electronic aids to navigation may be temporarily suspended with __________.

    N a. one day's notice
    N b. thirty (30) days notice
    Y c. no notice
    N d. a week's notice

1692: Your containership has a container displaying a hazardous cargo placard. The placard has the number 2206 on it. This indicates that it is carrying what cargo?

    Y a. Isocyanates, n.o.s.
    N b. Propadiene, inhibited
    N c. Xylenol
    N d. Hexanols

1829: The term "shift your rudder" means __________.

    Y a. change from right rudder to left rudder an equal number of degrees
    N b. double your rudder angle or go to full rudder
    N c. bring your rudder amidships
    N d. check the swing of the vessel

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

1859: You are attempting to take a dead ship in tow. All lines have been passed and secured. How should you get underway?

    N a. Order minimum turns until the towing hawser is just clear of the water, then reduce speed to that necessary to keep the line clear of the water.
    N b. If the towline is properly adjusted and weighted you can order slow or dead slow and the towline will act as a spring to absorb the initial shock.
    N c. Order minimum turns until the towing hawser is taut and then continue at that speed until towing speed is attained.
    Y d. Order minimum turns until the catenary almost breaks the water, then stop. Order more turns as the hawser slackens but keep the catenary in the water.

1983: When a line is subject to wear where it passes through a mooring chock, it should be __________.

    N a. wormed, parceled, and served
    N b. wrapped with heavy tape
    Y c. wrapped with chafing gear
    N d. wrapped in leather

2077: While assigned to a 150 GRT vessel, you are required to sign "foreign" articles on a voyage from New Orleans to which port?

    N a. Houston, Texas
    N b. Veracruz, Mexico
    N c. Kingston, Jamaica
    Y d. Cristobal Colon, Panama

2086: What is the mechanical advantage of tackle number 11? (DO29DG )

    N a. 7
    Y b. 6
    N c. 5.5
    N d. 5

2113: One major advantage of the round turn maneuver in a man overboard situation is that it __________.

    Y a. is the fastest method
    N b. is easy for a single-screw vessel to perform
    N c. requires the least shiphandling skills to perform
    N d. can be used in reduced visibility

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

2172: The lower hold of your vessel has a bale cubic of 52,000 cu. ft. You will load a cargo of cases, each weighing 380 lbs. and measuring 3 ft. x 2 ft. x 2 ft. The estimated broken stowage is 15%. How many tons of cases can be loaded?

    N a. 137 tons
    N b. 161 tons
    Y c. 625 tons
    N d. 969 tons

2286: Cargo that is highly susceptible to damage by tainting from odorous cargo is called __________.

    N a. clean cargo
    Y b. delicate cargo
    N c. dry cargo
    N d. immune cargo

2310: How do you determine the weight of the vessel that is supported by the ground when a vessel has run aground?

    N a. This requires extensive calculation and is usually performed only by a naval architect not by a ship's officer.
    N b. Determine the point where aground and the draft at that point, then calculate it using the grounding formula.
    Y c. Use the hydrostatic tables and enter with the mean draft before grounding and the mean draft after grounding.
    N d. Use the inclining experiment formula and substitute the change of trim for the angle of list.

2603: Which situation requires you to furnish a notice of marine casualty to the Coast Guard?

    Y a. Your vessel is at anchor and grounds at low tide with no apparent damage.
    N b. You collide with a buoy and drag it off station with no apparent damage to the vessel or the buoy.
    N c. A seaman slips on ice on deck and sprains his ankle, requiring an ace bandage.
    N d. Storm damage to the cargo winch motors requires repairs costing $19,000.

2626: The "grip" of a joint represents the __________.

    Y a. thickness of the connected members
    N b. diameter of the head
    N c. entire length of the rivet
    N d. diameter of the shank

3395: The holding power of an anchor at a given scope of cable increases when the __________.

    Y a. amount of chain lying along the bottom increases
    N b. length of the catenary is reduced
    N c. mooring line tension is increased
    N d. amount of chain lying along the bottom decreases

3494: Nylon rope is often used in the makeup of a towline because it __________.

    N a. floats
    Y b. stretches
    N c. handles easily
    N d. resists rot

3501: What must be accurately determined to assess the potential for progressive flooding after a vessel has been damaged?

    Y a. The integrity of the water tight boundaries
    N b. The capacity of the water sprinkler systems
    N c. The operation of the machinery space bilge level alarms
    N d. All of the above

3583: Indicated horsepower refers to a towing vessel's power which is __________.

    Y a. theoretically available
    N b. measured on a test bed
    N c. developed at the shaft
    N d. measured by dynamometer

3742: It is good practice to use long towlines for ocean tows because the __________.

    N a. wear on the towline is equalized
    N b. weight of the towline increases the towing force
    Y c. dip in the towline absorbs shock loads
    N d. danger of overriding is reduced

3820: When making a Scharnow turn, the __________.

    N a. rudder must be put over towards the side the man went over
    N b. initial turn direction is away from the side the man went over
    Y c. rudder is put hard over and the initial turn is maintained until about 240° from the original course
    N d. man overboard must be not more than 300 feet astern when starting the turn

4029: Which statement is TRUE concerning toluene?

    N a. Its Reid Vapor Pressure is 9.4.
    N b. The boiling point is 174°F.
    Y c. It is an aromatic hydrocarbon.
    N d. It is classified as a grade A flammable liquid.

4061: The two factors which make underwater hull repair difficult are accessibility and the __________.

    N a. availability of tools
    N b. shape of the hull
    Y c. pressure exerted by the water
    N d. threat of progressive flooding

4066: What is the MOST irritating to the skin?

    N a. Carbon disulfide
    N b. Ethyl alcohol
    N c. Isoprene
    Y d. Oleum

4163: According to the IMO Code, what are the minimum number of securing points that should be on each side of a "road vehicle", whose gross vehicle mass is between 20 tons and 30 tons, when carried on Ro-Ro vessels?

    N a. One
    N b. Two
    Y c. Three
    N d. None of the above

4180: Which of the following actions are stated in the correct order prior to loading or discharging cargo on a Ro-Ro vessel?

    N a. Raise/open stern door, lower the stern ramp, turn on ventilation for cargo holds
    Y b. Lower the stern ramp, raise/open stern door, turn on ventilation for cargo holds
    N c. Turn on ventilation for cargo holds, lower the stern ramp, raise/open stern door
    N d. Turn on ventilation for cargo holds, raise/open stern door, lower the stern ramp

4226: What does item "E" refer to in this illustration of a 30-ton pedestal crane? (D045DG )

    Y a. Tagline
    N b. Electric cable
    N c. Cargo snaking wire
    N d. Hook release cable

4276: During which condition should the operator of a pedestal crane shutdown operations?

    N a. Lightning in the vicinity
    N b. An approaching squall line
    N c. A fire on the pier
    Y d. All of the above