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.


39: Combustible liquids are divided into how many grades?


97: Chafing gear should be placed __________.


138: Which vessel is most likely to be loaded full but not down?


149: A standard net barrel of petroleum products is __________.

    Y a. 42 gallons at 60°F
    N b. 48 gallons at 70°F
    N c. 50 gallons at 50°F
    N d. 60 gallons at 100°F

167: You are on a large merchant vessel entering a U.S. port. There is a Pilot on board and he has the conn. Which statement is TRUE?

    N a. The Pilot is solely responsible for the safe maneuvering of the ship only if he is required to be on board by law.
    Y b. The Master is responsible for the safe navigation of the ship and the Pilot is employed for his local knowledge.
    N c. The Pilot is solely responsible for the internal working of the ship.
    N d. The Pilot becomes solely responsible for the safe navigation of the vessel only if the Master relinquishes the conn.

170: Which is NOT required on a tankship carrying hazardous liquid cargoes in bulk?

    N a. A copy of 46 CFR parts 35 and 150
    Y b. Certificate of Adequacy for the hazardous cargoes carried
    N c. Certificate of Inspection issued under the Tank Vessel Regulations
    N d. Cargo piping plan showing loading rates for all applicable cargo lines

170: Which is NOT required on a tankship carrying hazardous liquid cargoes in bulk?

    N a. A copy of 46 CFR parts 35 and 150
    Y b. Certificate of Adequacy for the hazardous cargoes carried
    N c. Certificate of Inspection issued under the Tank Vessel Regulations
    N d. Cargo piping plan showing loading rates for all applicable cargo lines

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

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

321: Which is a TRUE statement concerning the examining of cargo equipment at the time of a vessels Inspection for Certification.

    N a. Cargo booms must be weight tested at this time by the U.S. Coast Guard.
    N b. Cargo booms must be weight tested at this time by the American Bureau of Shipping.
    N c. Cargo booms must be weight tested at this time by the National Cargo Bureau.
    Y d. No test at this time is required.

337: On a coastwise tugboat of 199 GT, on a voyage over 600 miles, what percentage of the deck crew (excluding licensed officers) must hold a document of able seaman?

    Y a. 65%
    N b. 50%
    N c. 25%
    N d. 0%

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

    N a. fishhooks
    N b. kinks
    N c. worn spots
    Y d. All of the above

438: Your vessel is loaded with nonhygroscopic cargoes and is going from a cold to a warm climate. You should __________.

    N a. start the exhaust blowers
    N b. start the intake blowers
    Y c. not ventilate the cargo holds
    N d. ventilate the cargo holds

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

569: In order to reduce the accumulation of static electricity while loading petroleum products, you should __________.

    N a. start to load at maximum pressure
    Y b. start to load slowly
    N c. increase the air flow into the tank
    N d. use the overall method of loading only

579: The terminal indicates to you that they are going to use a booster pump to assist the discharging operation. You start the discharge, and in a few minutes the pressure drops sharply. This could be a result of the __________.

    Y a. booster pump coming on the line and discharging properly
    N b. booster pump failing to start
    N c. booster pump being lined up in the wrong direction
    N d. ship's pump speeding up

652: When plugging holes below the waterline you should __________.

    N a. eliminate all water entering the hole
    N b. only plug holes in machinery or other vital spaces
    Y c. reduce the entry of water as much as possible
    N d. plug the largest holes first

659: You are planning to use the crude oil washing system on your tankship. What is required to prevent electrostatic buildup in the tanks?

    N a. The portable machines must be set at the proper drop for the first wash before the fixed machines are used.
    Y b. The source tank for the tank cleaning machines must have least one meter decanted from it.
    N c. The inert gas system must reduce the oxygen content in the tanks to a maximum of 18%.
    N d. The fixed machines must be operated simultaneously with the portable machines to equalize the electrostatic potential.

790: Which statement is TRUE of centrifugal pumps aboard tank vessels?

    N a. They are positive displacement pumps.
    Y b. They are gravity-fed.
    N c. They produce a pulsating flow.
    N d. They require more maintenance than a reciprocating pump.

804: Line is called "small stuff" if its circumference is less than __________.

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

814: In the manufacture of line, plant fibers are twisted together to form __________.

    N a. cable
    N b. line
    N c. strands
    Y d. yarns

864: During the manufacture of line, yarns are twisted together in the __________.

    Y a. opposite direction from which the fibers are twisted together to form strands
    N b. same direction the fibers are twisted to form strands
    N c. opposite direction from which the fibers are twisted together to form the line
    N d. opposite direction from which the fibers are twisted together forming cables

919: A deepwell pump is a type of __________.

    N a. screw pump
    Y b. centrifugal pump
    N c. eductor
    N d. gear pump

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

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

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

960: Gross tonnage indicates the vessel's __________.

    N a. displacement in metric tons
    N b. total weight including cargo
    Y c. volume in cubic feet
    N d. draft in feet

983: When a vessel is on autopilot steering, the "weather " control is adjusted to compensate for which severe weather effect on a vessel?

    Y a. Yaw
    N b. Roll
    N c. Pitch
    N d. Leeway

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.

1083: Which of the knots, bends, or hitches shown in the illustration would you use to properly secure a bosun's chair to a gantline? (D030DG )

    N a. G
    N b. I
    N c. Q
    Y d. R

1124: Which material makes the strongest mooring line?

    N a. Sisal
    N b. Manila
    Y c. Nylon
    N d. Polyethylene

1129: The main function of a stripping system is to __________.

    N a. maintain the temperature of the cargo throughout the vessel
    N b. dispose of dangerous vapors within the cargo tanks
    N c. increase the loading rate of the shoreside pumps
    Y d. discharge liquid left in the cargo tanks after the main pumps have discharged the bulk

1134: The critical point in nylon line elongation is about __________.

    N a. 20%
    N b. 30%
    Y c. 40%
    N d. 50%

1285: Which information MUST be entered on the muster list?

    N a. Names of all crew members
    N b. Use and application of special equipment
    N c. Listing of approved emergency equipment
    Y d. Duties and station of each person during emergencies

1411: The time allowed for loading and discharging cargo in a charter party is referred to as __________.

    N a. charter hire
    N b. demurrage
    N c. dispatch
    Y d. lay days

1424: A wire rope for a 10-ton boom on a vessel shows signs of excessive wear and must be replaced. What safety factor should be used when ordering a new wire?

    N a. 4
    Y b. 5
    N c. 6
    N d. 7

1446: The marking on an anchor chain for 30 fathoms is __________.

    Y a. two links on each side of the 30 fathom detachable link are painted white
    N b. one link on each side of the 30 fathom detachable link is painted white
    N c. three links on each side of the 30 fathom detachable link are painted white
    N d. only the detachable link is painted red

1517: Which picture represents a timber hitch? (DO30DG )

    Y a. E
    N b. F
    N c. N
    N d. U

1520: A welded joint's effectiveness is considered __________.

    N a. 48%
    N b. 90%
    Y c. 100%
    N d. 121%

1663: A bench hook is used for __________.

    N a. handling of cargo cases
    N b. hanging oilskins
    Y c. sewing canvas
    N d. splicing small stuff

1680: In vessel construction, the garboard strake is __________.

    Y a. located next to and parallel to the keel
    N b. located next to and parallel to the gunwale
    N c. another term for the bilge keel
    N d. another term for the rub rail

1704: Whipping the bitter end of a fiber rope __________.

    N a. increases the circumference of the rope
    N b. makes for easier handling
    Y c. prevents fraying of the bitter end
    N d. prevents moisture from entering the bitter end

1738: Which vessel is required by regulations to have an Official Logbook?

    Y a. A 100-gross ton tug on a trip between Baltimore, Maryland, and San Pedro, California.
    N b. A 199-gross ton tug on a coastwise trip of 610 miles.
    N c. A 66-gross ton tug operating between states.
    N d. All of the above

1781: Which organization usually assigns load lines to U.S. vessels?

    N a. National Load-Line Agency
    N b. National Shipping Bureau
    Y c. American Bureau of Shipping
    N d. American Regulations Council

1781: Which organization usually assigns load lines to U.S. vessels?

    N a. National Load-Line Agency
    N b. National Shipping Bureau
    Y c. American Bureau of Shipping
    N d. American Regulations Council

1815: "Ease the rudder" means to __________.

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

1817: Refrigeration machinery is often surveyed before loading reefer cargo. This survey is usually performed by the __________.

    N a. U.S. Coast Guard
    Y b. American Bureau of Shipping
    N c. National Cargo Bureau
    N d. local port authority

1831: A "loose" tow may cause all of the following EXCEPT __________.

    N a. loss of maneuverability
    N b. lines to part
    N c. damage to the towing vessel and tow
    Y d. a saving in the transit time

1920: Which form of navigation may be suspended without notice under defense planning?

    Y a. electronic
    N b. celestial
    N c. piloting
    N d. None of the above

2013: A mooring line that checks forward motion of a vessel at a pier is a __________.

    N a. bow line
    N b. forward bow line
    Y c. stern line
    N d. stern breast line

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.

2452: Which is an advantage of using watertight longitudinal divisions in double bottom tanks?

    Y a. Cuts down free surface effect
    N b. Increases the rolling period
    N c. Decreases weight because extra stiffeners are unneeded
    N d. Lowers the center of buoyancy without decreasing GM

2502: A tow of 9 barges is made up three abreast by three long. The towboat is faced up to the last barge of the center string. The outer two strings of barges are the __________.

    N a. port and starboard strings
    N b. outer strings
    Y c. drag strings
    N d. side strings

2512: Ultrasonic testing is used to determine the thickness of a vessel's shell plating and to __________.

    N a. provide tail shaft clearances
    Y b. test welds for subsurface defects
    N c. check the wear of the rudder carrier bearing
    N d. test the links of the anchor cables while being ranged

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

2658: A Kip is equal to __________.

    Y a. 1000 lbs.
    N b. 1000 kgs.
    N c. 2000 lbs.
    N d. 2240 lbs.

3046: What is an explosion hazard when exposed to flame?

    N a. Formic acid
    N b. Nitrous oxide
    N c. Tallow
    Y d. Toluene

3142: Why are stern towing bitts placed well forward of the rudder when hawser towing?

    N a. To keep the hawser from fouling the rudder
    N b. To keep the towing bitts as far away as possible from the tugs pivoting point
    Y c. To allow the stern to swing more freely when using rudder
    N d. To have as much of the towing hawser in use as possible

3162: When maneuvering from pull towing to breasted (alongside) towing, a twin-screw vessel is more likely than a single-screw vessel of equal horsepower to __________.

    N a. trip or capsize
    Y b. foul the towline
    N c. go into irons
    N d. part the towing strap

4064: Which statement concerning castor oil is TRUE?

    N a. It has a Reid vapor pressure of 9.5.
    N b. It has a specific gravity of 1.3.
    N c. The boiling point is 215°F (102°C).
    Y d. It is a grade E combustible liquid.

4113: What is(are) standard operating procedure(s) used on a Ro-Ro vessel?

    Y a. Periodic inspection and retensioning of lashings as required during voyage
    N b. Lashings may be completed after the vessel leaves port
    N c. One QMED assigned to oversee the initial loading and lashing
    N d. All of the above

4134: What may NOT be used when securing heavy vehicles aboard Ro-Ro vessels?

    N a. Chain lever
    N b. Turnbuckle
    Y c. Webbing
    N d. Chain