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.


139: A "barrel" is a unit of liquid measure equivalent to __________.


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


240: The best way to lift many small articles aboard your vessel is with a __________.


248: Dunnage may be used to protect a cargo from loss or damage by _______________________ .

    Y a. ship's sweat
    N b. inherent vice
    N c. tainting
    N d. hygroscopic absorption

260: You receive a package, for shipment aboard your vessel, containing Class 1 explosives. The package is damp, moldy and stained. You must __________.

    N a. have the U.S.C.G. Captain of the Port approve the shipment
    N b. note an exception on the Bill of Lading
    N c. repair or replace the packaging before stowage
    Y d. seek the shipper's advice with regard to withdrawal, repair, or replacement

286: Sidewise force of the propeller tends to throw a vessel's stern to the right or left, depending on rotation. This force is caused by __________.

    N a. back current from the rudder
    N b. greater pressure on the right or left side of the propeller, depending on rotation
    N c. lower pressure on the right or left side of the propeller, depending on rotation
    Y d. torque from the velocity and angle at which the surrounding water impinges upon the propeller blades

306: You are aboard a single-screw vessel with a right-handed propeller. The vessel is dead in the water and the rudder is amidships. If you reverse your engine you would expect your vessel to __________.

    Y a. kick its stern to port
    N b. kick its stern to starboard
    N c. move astern without swinging
    N d. swing its stern to starboard, then to port

335: You are steaming in a heavy gale and find it necessary to heave to. Under most circumstances, this is best done by __________.

    N a. stopping the engines and drifting beam to the seas
    N b. going slow astern and taking the seas on the quarter
    Y c. taking the sea fine on the bow and reducing the speed to the minimum to hold that position
    N d. maintaining speed and taking the sea broad on the bow

400: You are on a containership carrying a tank container that had been filled with sodium hydroxide solution. The container is empty but has not been cleaned. Which, if any, placard is required?

    N a. No placard is required; the tank openings must be sealed
    N b. Empty placard with corrosive placard
    N c. Residue label with the UN number
    Y d. Black and white corrosive placard

462: The safe working load (SWL) of wire rope with a safety factor of 6 is what percent of its strength?

    N a. 10%
    Y b. 17%
    N c. 50%
    N d. 80%

472: On a long ocean tow, the bridle should be made up of two equal lengths of __________.

    Y a. chain
    N b. wire
    N c. nylon
    N d. manila

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

603: To reduce the amount of catenary you may __________.

    Y a. shorten the hawser or increase the tug's speed
    N b. lengthen the hawser or reduce the tug's speed
    N c. place your tug in irons
    N d. make a sharp turn

630: You are doing a Williamson turn. Your vessel has swung about 60° from the original course heading. You should __________.

    N a. put the rudder amidships and check the swing
    N b. stop the engines and prepare to maneuver to pick up the man in the water
    Y c. shift your rudder
    N d. increase to maximum speed

637: A tow bridle is attached to the main tow hawser at the __________.

    N a. bight ring
    N b. tow hook
    Y c. fishplate
    N d. swivel

648: Bulk cargo refers to __________.

    N a. cargo which occupies a large volume of space
    N b. cargo which requires refrigeration
    N c. cargo which is very dense
    Y d. homogeneous cargo not enclosed in a container

650: A crew member has just fallen overboard off your port side. Which action should you take?

    N a. Immediately put the rudder over hard right.
    Y b. Immediately put the rudder over hard left.
    N c. Immediately put the engines astern.
    N d. Wait until the stern is well clear of the man and then put the rudder over hard right.

752: A lot of special cargo of similar cartons as shown is to be loaded. What is the total cubic capacity the consignment will occupy if you assume 10% broken stowage? (D042DG )

    N a. 51 cubic feet (1.5 cubic meters)
    N b. 58 cubic feet (1.7 cubic meters)
    Y c. 65 cubic feet (2.0 cubic meters)
    N d. 336 cubic feet (10 cubic meters)

759: The equipment used to control, protect and connect a towline is called ___________ .

    N a. cat head
    Y b. terminal gear
    N c. level wind
    N d. poured socket

759: The equipment used to control, protect and connect a towline is called ___________ .

    N a. cat head
    Y b. terminal gear
    N c. level wind
    N d. poured socket

824: The larger sizes of manila line are measured by their __________.

    N a. radius
    N b. diameter
    Y c. circumference
    N d. weight per foot

897: Which factor(s) might indicate that a towline should be removed from service?

    N a. Visible damage to the towline, including fishhooks.
    N b. Measurements showing a decrease in diameter.
    N c. A surface condition of corrosion and discoloration.
    Y d. All of the above

915: What is the period of validity of a Cargo Ship Safety Radio Certificate?

    N a. 6 months
    N b. 12 months
    N c. 24 months
    Y d. 60 months

927: Sluicing or slushing wire rope __________.

    N a. prevents internal and external rust and corrosion
    N b. reduces chafing and increases its useful service life
    N c. reduces internal friction within the wire
    Y d. All of the above

984: To coil a right-laid rope, you should coil the line in __________.

    Y a. a clockwise direction
    N b. a counterclockwise direction
    N c. alternating clockwise and counterclockwise directions
    N d. either a clockwise or counterclockwise directions

997: When steering by hand, which of the following may be a functional input to the steering gear as a result of turning the wheel?

    Y a. Non-followup
    N b. Rudder adjustment
    N c. Weather adjustment
    N d. All the above may be activated

1026: When making way in heavy seas you notice that your vessel's screw is being lifted clear of the water and racing. One way to correct this would be to __________.

    N a. increase speed
    Y b. decrease speed
    N c. move more weight forward
    N d. shift the rudder back and forth several times

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

1282: When evacuating a seaman by helicopter lift, the vessel should be __________.

    N a. stopped with the wind dead ahead
    N b. stopped with the wind on the beam
    Y c. underway with the wind 30° on the bow
    N d. underway on a course to provide no apparent wind

1311: Before arriving at the first U.S. port from foreign, you must fill out a Crewman's Landing Permit for each __________.

    N a. alien crewmember
    N b. crew member
    Y c. nonresident alien crewmember
    N d. unlicensed crew member

1508: While towing, sudden shock-loading caused during heavy weather can be reduced by __________.

    N a. using a short tow hawser
    N b. using a nonelastic type hawser
    Y c. using a heavier hawser
    N d. decreasing the catenary in the hawser

1549: On your vessel, a wire rope for the cargo gear shows signs of excessive wear and must be replaced. In ordering a new wire for this 10-ton boom, what safety factor should you use?

    N a. Three
    Y b. Five
    N c. Six
    N d. Seven

1665: Which picture in illustration DO30DG represents a sailmaker's whipping? (DO30DG )

    N a. E
    N b. F
    N c. J
    Y d. K

1673: A sail hook is used for __________.

    N a. hoisting a windsail
    N b. parceling
    Y c. sewing canvas
    N d. testing canvas

1708: For the purpose of regulating tank vessels, flammable liquids are liquids which will __________.

    Y a. give off flammable vapors at or below 80°F (27°C)
    N b. have a Reid vapor pressure of 18 pounds or more
    N c. give off flammable vapors only above 80°F (27°C)
    N d. sustain combustion at a temperature at or below 100°F (38°C)

1775: Your containership has a container displaying a hazardous cargo placard. The placard has the number 2224 on it. This indicates that it is carrying what cargo?

    N a. Hexanol
    N b. Acrylic acid
    Y c. Benzonitrile
    N d. Propadiene, inhibited

1805: In towing it is desirable for the tug and the tow to ride wave crests simultaneously because __________.

    Y a. shock loading on the tow line is reduced
    N b. towing speed is improved
    N c. the tow is more visible from the tug
    N d. the catenary of the towline is reduced

1821: While towing, what is the principal danger in attempting to swing a barge on a short hawser in order to slow the barge's speed?

    N a. The barge may capsize from the sharp turn.
    Y b. The barge may swing too quickly and run over the tug.
    N c. Free surface effect of liquid inside the barge may rupture the barge bulkheads when turning too quickly.
    N d. Dangerous wakes may result from the swinging barge and capsize the tug.

1875: A seam is indicated by which letter in illustration D033DG? (D033DG )

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

1894: A load line is assigned by __________.

    N a. the U.S. Customs
    N b. the U.S. Department of Energy
    N c. the U.S. Army Corps of Engineers
    Y d. a recognized classification society approved by the U.S. Coast Guard

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

2135: A load line certificate is valid for how many years?

    N a. 1
    N b. 2
    N c. 3
    Y d. 5

2214: 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 as shown. Based on this information, what is the advance for a turn of 90°? (D034DG )

    N a. 820 yards
    Y b. 870 yards
    N c. 930 yards
    N d. 975 yards

2233: The knot lettered N as shown is a __________. (DO30DG )

    N a. timber hitch
    N b. rolling bowline
    Y c. stopper
    N d. heaving line hitch

2278: You will load and carry a bulk cargo of sulfur at ambient temperature. Which statement is true?

    N a. Wooden covers must be laid over the bilge wells to prevent the sulfur from entering the bilges.
    Y b. Bulk sulfur may be carried without a special permit providing the vessel complies with all applicable regulations.
    N c. The major characteristic of this cargo is that it forms sulfuric acid upon contact with water.
    N d. Other hazardous material may not be stowed in the same hold as the sulfur but may be carried on deck above the hold.

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

2550: When a small craft's anchor fouls in a rocky bottom, the first attempt to clear it should be made by __________.

    N a. hauling vertically on the line
    N b. making the line fast to the bitt and bringing the vessel further forward
    Y c. reversing the angle and direction of pull, with moderate scope
    N d. increasing the scope and running slowly in a wide circle with the anchor line taut

2564: The major components which determine the length of catenary in a deployed anchor cable are water depth, cable tension, and __________.

    N a. environmental forces
    N b. bottom conditions
    Y c. cable weight
    N d. water density

2592: The internal volume of a cargo hold measured from the inside faces of the cargo battens, the lower side of the deck beams, and the top of the tank top ceiling is known as the __________.

    N a. gross tonnage
    N b. deadweight space
    Y c. bale cubic
    N d. stowage area

2816: Which statement is TRUE concerning lighting requirements for Great Lakes vessels?

    N a. The showing of a forward masthead light is optional for vessels under 150 meters.
    Y b. An all-round white light may be carried in lieu of the second masthead light and stern light.
    N c. Sidelights for vessels over 50 meters are required to have only a two-mile range of visibility.
    N d. Great Lakes vessels are exempted from the requirement to show yellow towing lights.

3048: The proximity of pack ice may be indicated by __________.

    N a. changes in seawater salinity
    Y b. glare on clouds on the horizon
    N c. changes in air temperature
    N d. icebergs

3079: What is a solid at ambient temperature?

    N a. Aniline
    N b. Formic acid
    N c. Methyl chloride
    Y d. Napthalene

3204: What term indicates the immersed body of the vessel forward of the parallel mid-body?

    N a. Run
    N b. Flare
    Y c. Entrance
    N d. Sheer

3470: The section of each end of a barge which is heavily reinforced to take the pressure of pushing is called the __________.

    Y a. headlog
    N b. towhead
    N c. collision bulkhead
    N d. bullnose

3561: A holder of a license as Operator of Uninspected Towing Vessels may work each 24 hours for a period not to exceed __________.

    N a. 24 hours
    N b. 18 hours
    Y c. 12 hours
    N d. 6 hours

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

3612: Buckler plates are __________.

    N a. triangular-shaped plates connecting the bull chain to the topping lift
    Y b. metal plates secured over the tops of the hawsepipes
    N c. faired shell plates with curvature in two directions
    N d. sheets of dunnage used to prevent heavy cargo from buckling the deck plates

3938: With a given load on the cargo hook, tension in a single span topping lift __________.

    N a. increases as the boom's angle to the horizontal increases
    N b. is at a maximum when the boom is at a 45° angle to the horizontal
    Y c. increases as the boom's angle to the horizontal decreases
    N d. decreases as the boom's angle to the horizontal decreases

4110: Which standard operating procedure(s) should be adhered to on a Ro-Ro vessel?

    Y a. Periodic inspection and retensioning of lashings as required during voyage
    N b. Battery cables must be disconnected to prevent fire hazard
    N c. One deck engine mechanic assigned to oversee the initial loading and lashing
    N d. All of the above

4260: Which statement(s) is/are TRUE regarding the operation of a crane?

    Y a. The load is handled by the hoisting winch and cargo block.
    N b. The crane jib is raised and lowered by the hoisting winch.
    N c. The cargo block is raised and lowered by the luffing winch.
    N d. All the above