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 )


14: Damaged bulkheads often take a permanent set which is independent of the panting or bulge caused by water pressure. To control this, you should __________.


125: Chafing gear is normally used __________.


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

376: You are aboard a right-handed single-screw vessel with headway on. The engine is put full astern and the rudder hard left. What will the bow do?

    N a. It will swing to the left, and will swing left faster as the vessel loses way.
    Y b. It will swing to the left, straighten out and then swing to the right as the vessel loses way.
    N c. It will swing to the left without increasing or decreasing its swing.
    N d. The bow will swing to the right.

414: To "ease" a line means to __________.

    N a. cast off
    N b. double up so that one line does not take all the strain
    Y c. pay out line to remove most of the tension
    N d. slack it off quickly

455: A vessel having continuous closely spaced transverse strength members is __________.

    N a. longitudinally framed
    Y b. transversely framed
    N c. cellular framed
    N d. web framed

479: Your tank vessel is loaded down to her marks, and you find that she has too much trim by the stern. To adjust the trim you may __________.

    N a. add ballast forward
    N b. load more cargo forward
    Y c. shift bunkers forward
    N d. All of the above

491: A change of a documented vessel's name can only be made by the __________.

    N a. American Bureau of Shipping
    N b. Commissioner of Customs
    N c. Treasury Department
    Y d. Coast Guard

498: When the dew point of the outside air is higher than the dew point of the air in the cargo hold, you should __________.

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

555: A chain bridle is used when towing astern because it __________.

    N a. is easy to connect
    Y b. provides an effective catenary and absorbs shock due to its weight
    N c. makes rigging a swivel unnecessary
    N d. prevents the tow from yawing by the drag of the chains in a seaway

719: Most crude oils are classified as grade __________.

    N a. A or B
    N b. B
    Y c. C or D
    N d. E

761: The Immigration and Naturalization Service is concerned with which document on a vessel making preliminary entry into a U.S. port from a foreign port?

    N a. Cargo Manifest
    Y b. Certified Crew List
    N c. Curio List
    N d. Shipping Articles

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.

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

968: The Master may have his/her license suspended or revoked for __________.

    N a. carrying stowaways
    N b. sailing shorthanded
    Y c. being negligent
    N d. All of the above

1046: In a following sea, a wave has overtaken your vessel and thrown the stern to starboard. To continue along your original course, you should __________.

    Y a. use more right rudder
    N b. use more left rudder
    N c. increase speed
    N d. decrease speed

1050: The "margin plate" is the __________.

    Y a. outboard strake of plating on each side of an inner bottom
    N b. outer strake of plating on each side of the main deck of a vessel
    N c. plate which sits atop the center vertical keel
    N d. uppermost continuous strake of plating on the shell of a vessel

1068: You shall notify the nearest Coast Guard Marine Inspection Office as soon as possible when your vessel has been damaged in excess of __________.

    N a. $1,000
    N b. $1,500
    N c. $10,000
    Y d. $25,000

1153: What affect does shallow water have on a vessel's stopping distance?

    N a. The stopping distance is shorter.
    Y b. The stopping distance is longer.
    N c. There is no difference in the stopping distance.
    N d. The propeller is more effective when going astern in shallow water.

1366: The best method to stop a vessel from dragging anchor in a sand bottom is to __________.

    N a. reduce the length of the cable
    Y b. pay out more anchor cable
    N c. back the engines
    N d. swing the rudder several times to work the anchor into the bottom

1384: The wire rope used for cargo handling on board your vessel has a safe working load of eight tons. It shall be able to withstand a breaking test load of __________.

    N a. 32 tons
    Y b. 40 tons
    N c. 48 tons
    N d. 64 tons

1464: When talking about wire rope, the lay of the wire is the __________.

    Y a. direction wires and strands are twisted together
    N b. number of strands in the wire
    N c. direction the core is twisted
    N d. material used in the core

1500: Sometimes it is desirable to connect a member both by riveting and welding. Which statement is TRUE concerning this procedure?

    N a. Tearing through the member is more likely in this type connection.
    N b. The weld may be broken by the stresses caused by riveting.
    N c. The weld increases the tensile stress on the rivet heads.
    Y d. The welding must be completed before the riveting commences.

1558: When making up a tow connection, you should use __________.

    N a. safety hooks
    N b. plain eye hooks
    N c. round pin shackles
    Y d. screw pin shackles

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

1812: A survey of refrigerated cargo, to certify that proper methods of stowage were utilized, can be conducted by the __________.

    N a. American Bureau of Shipping
    N b. Occupational Safety and Health Administration
    N c. U.S. Coast Guard
    Y d. National Cargo Bureau

1823: Chafing gear __________.

    N a. reduces and prevents corrosion of standing rigging
    N b. prevents corrosion of running rigging
    Y c. reduces and prevents wear caused by the rubbing of one object against another
    N d. protects the body against extreme cold

1838: You are docking a vessel. If possible, you should __________.

    N a. go in with the current
    Y b. go in against the current
    N c. approach the dock at a 90° angle and swing to
    N d. pass a mooring line to the dock with a heaving line and let the crew pull the vessel in

1863: If a mooring line should part while you are tying up at a dock, you should make a temporary eye by tying a __________.

    N a. becket bend
    N b. clove hitch
    Y c. bowline
    N d. square knot

1940: Nonflammable gases should have what kind of label?

    N a. Skull and crossbones
    N b. White
    Y c. Green
    N d. Red

1948: The Honolulu (Christmas tree) tow was devised to __________.

    Y a. keep the catenary to a minimum
    N b. allow easy removal of a center tow
    N c. reduce hawser length
    N d. increase the catenary

1949: Using a scope of 5, determine how many feet of cable you should put out to anchor in 5 fathoms of water.

    N a. 100 feet
    Y b. 150 feet
    N c. 200 feet
    N d. 250 feet

1972: Payment of penalty for a ship's delay after the expiration of lay days due to some fault of the charterer or his agent is known as __________.

    Y a. demurrage
    N b. late fee
    N c. miscibility
    N d. volatility

2005: A block that can be opened at the hook or shackle end to receive a bight of the line is a __________.

    N a. bight block
    N b. gin block
    N c. heel block
    Y d. snatch block

2009: A cargo of canned foodstuffs is packed in cartons. Each carton is 36 cubic feet and weighs 380 pounds. What is the stowage factor of the cargo?

    N a. 9.5
    N b. 62
    Y c. 212
    N d. 237

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

2122: What is the name of tackle number 9? (DO29DG )

    N a. Single purchase
    N b. One-two tackle
    N c. Double whip
    Y d. Luff tackle

2220: The load chart of a crane enables the operator to combine the load radius with boom length to determine the __________.

    N a. maximum counter weight required
    N b. minimum horsepower required
    N c. hoist rope strength
    Y d. allowable load

2289: A seaman you have just discharged has a Continuous Discharge Book. Which statement is TRUE?

    Y a. The record of entry in the continuous discharge book shall agree with the entry made in the Ship's Articles.
    N b. If the vessel was on coastwise articles, the record of discharge will be made in the Official Logbook.
    N c. An entry should be made in the book and a Certificate of Discharge issued to the seaman.
    N d. A Certificate of Discharge form should be attached to the book.

2466: The pillar shape that gives the greatest strength for the least weight is the __________.

    N a. octagonal pillar
    N b. "H" Beam pillar
    N c. "I" Beam pillar
    Y d. circular type pillar

2471: To determine the number of able seamen required on an inspected vessel, you should check the __________.

    N a. Load Line Certificate
    N b. operations manual
    N c. Safety of Life at Sea Certificate
    Y d. Certificate of Inspection

2488: A vessel is constructed with a steel hull and an aluminum superstructure. Which statement is TRUE?

    N a. The aluminum will provide greater resistance to the spread of fire by conduction.
    Y b. The aluminum structure is usually attached to a steel coaming by a method that insulates the two metals.
    N c. If the superstructure is stressed, an aluminum structure requires additional expansion joints to prevent fracture.
    N d. The steel at the area of the aluminum-to-steel connection must be closely checked for galvanic corrosion.

2542: When loading containers into the cell guides in the hold of a container ship, which statement is TRUE?

    Y a. No further securing is usually required.
    N b. Containers must have vertical lashings if they do not have twist lock securing.
    N c. All containers must have vertical and horizontal lashings.
    N d. The container must be locked into the cell guide.

2597: On a small boat, if someone fell overboard and you did not know over which side the person fell, you should __________.

    N a. immediately reverse the engines
    Y b. stop the propellers from turning and throw a ring buoy over the side
    N c. increase speed to full to get the vessel away from the person
    N d. first put the rudder hard over in either direction

2608: Most very large ocean going vessels, such as bulk carriers and large tankers, tend to squat __________.

    Y a. by the bow
    N b. by the stern
    N c. at the end nearest the bottom
    N d. evenly fore and aft

2616: You are in charge of a towing vessel that operates exclusively on inland waters. You regularly tow barges that provide services (cargo lighters, fuel barges, etc.) to foreign flag vessels in port. What will be accepted as proper credentials for you and your crew?

    N a. No credentials are required since you operate on inland waters only
    N b. Social Security card
    N c. State driver's license with photo ID
    Y d. Merchant Mariner's Document

2632: The horizontal flat surfaces where the upper stock joins the rudder are the __________.

    N a. rudder keys
    Y b. rudder palms
    N c. lifting flanges
    N d. shoes of the rudder

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

2732: Flanking rudders effect a vessel's heading because of the __________.

    Y a. effect of the propeller flow on the rudders
    N b. water flow due to the vessel's movement through the water
    N c. tunnel affect of the water flow past opposing rudders
    N d. discharge current being channeled to impinge on the vessel's deadwood

2746: Which of the Great Lakes experiences the least amount of water level fluctuation between seasonal high and low water marks?

    N a. Lake Huron
    N b. Lake Erie
    Y c. Lake Superior
    N d. Lake Michigan

2754: Which statement is TRUE concerning vessels over 1600 gross tons certificated for service solely on the Great Lakes?

    N a. They must have magnetic compasses.
    N b. They must have gyro compasses.
    Y c. They must carry a deep-sea hand lead.
    N d. All of the above statements are TRUE.

2768: Which of the Great Lakes lies entirely within the United States?

    N a. Lake Ontario
    N b. Lake St. Clair
    Y c. Lake Michigan
    N d. Lake Superior

2968: On the Great Lakes, winter storms compound the ice threat by bringing a variety of wind, wave, and weather problems on an average of every __________.

    N a. two days
    N b. three days
    Y c. four days
    N d. five days

3089: How does an icebreaker normally free a ship which has become beset while navigating independently?

    N a. By backing down the track and cutting out ice on either bow
    Y b. By approaching from the stern and crossing ahead at an angle of 20° to 30° to the beset ship's course
    N c. By overtaking the beset ship, running ahead and then backing down the track to the beset vessel
    N d. By approaching the vessel from astern and towing the beset vessel stern first

3491: You are the licensed Master of a towing vessel operating between New York and Tampa, Florida. If you carry four (4) deckhands onboard, how many must be able seamen?

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

3587: Following a serious marine incident, a device to test an individuals breath can be used by __________.

    Y a. any individual trained to conduct such tests
    N b. the marine employer
    N c. qualified medical personnel only
    N d. any USCG licensed deck officer

4026: One of the greatest hazards of pushing ahead is parting which item shown? (D024DG )

    N a. A
    N b. B
    N c. F
    Y d. I

4067: When steering a vessel, a good helmsman does NOT __________.

    N a. use as little rudder as possible to maintain course
    N b. advise his relief of the course being steered
    N c. consider steering a vessel a highly responsible job
    Y d. use as much rudder as possible to maintain course

4126: Which variable factor affects the initial lashing requirements aboard Ro-Ro vessels?

    Y a. Number, position and angle of lashings
    N b. Vessel's draft
    N c. Port of origin
    N d. ABS requirements