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.


95: You should keep clear of __________.


125: Chafing gear is normally used __________.


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


214: The helm command "meet her" means __________.

    Y a. use rudder to check the swing
    N b. decrease the rudder angle which is on
    N c. steer more carefully
    N d. note the course and steady on that heading

253: The forward movement of a vessel in one revolution of its propeller is measured by __________.

    N a. advance
    N b. head reach
    Y c. the pitch
    N d. transfer

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

415: A person is found operating a vessel while intoxicated. He/she is liable for __________.

    N a. imprisonment for up to one year
    N b. a civil penalty of not more than $1,000
    N c. a fine of not more than $2,000
    Y d. a civil penalty of not more than $5,000

512: When paying out nylon line from around the bitts __________.

    Y a. stand clear of the bitts and use two or more round turns under your figure eights
    N b. you can surge the line even with a single turn
    N c. no extra turns are necessary since nylon has a high coefficient of friction
    N d. stand in the bight of the line

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.

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.

680: You must medevac a critically injured seaman by helicopter hoist. Which statement is TRUE?

    N a. The ship's relative wind should be from dead ahead at 10 to 30 knots.
    Y b. The deck crew at the hoist point should not wear baseball hats.
    N c. The helicopter's drop line should be secured to the ship not more than 15 feet from the hoist position.
    N d. When using a "horse collar", the bight of the loop should be around the chest of the injured seaman.

852: How can the Coast Guard determine that a crew member is "able to understand any order spoken by the officers"?

    Y a. Require a demonstration by the officer and the crew member
    N b. Require a written test
    N c. Require that an interpreter be provided
    N d. All of the above

852: How can the Coast Guard determine that a crew member is "able to understand any order spoken by the officers"?

    Y a. Require a demonstration by the officer and the crew member
    N b. Require a written test
    N c. Require that an interpreter be provided
    N d. All of the above

895: Which factor would NOT lead to removing a towline from service?

    N a. An excessive number of miles of towing service.
    N b. Failing a tensile strength test that proved the towline was no longer appropriate for expected sea conditions.
    Y c. When heavy grease on the towline saturates the core of the wire rope.
    N d. Its surface condition is noted, including its corrosion and discoloration.

1041: The document on a vessel, annually endorsed by an American Bureau of Shipping surveyor, is called the __________.

    N a. Certificate of Inspection
    N b. Classification Certificate
    Y c. Load Line Certificate
    N d. Seaworthy Certificate

1062: An IOPP Certificate on an inspected vessel is valid for what period of time?

    N a. 6 months
    N b. 12 months
    N c. 18 months
    Y d. 5 years

1099: To allow for the rise or fall in tide and for change in draft of a tankship during cargo transfer, cargo hoses must be suspended with __________.

    N a. slings or saddles placed at 25-foot (8 meter) intervals
    Y b. enough slack in their bight
    N c. topping lifts and runners tied off to winches
    N d. All of the above

1133: To properly rig the downhaul to your stage for lowering, you must __________.

    N a. take only figure eights around the horns
    Y b. take 2 or 3 round turns around the stage and then belay the downhaul around the horns
    N c. take 2 round turns around the stage and then dip the third turn to form a clove hitch
    N d. pass the downhaul through the bridle formed by the standing part and then take round turns

1160: In a longitudinally-framed ship, the longitudinal frames are held in place and supported by athwartship members called __________.

    N a. floors
    N b. margin plates
    N c. stringers
    Y d. web frames

1278: The document that establishes the facts of a casualty and is the prima facie relief from liability for the damage is the __________.

    N a. adjuster's report
    N b. insurance policy
    N c. invoice
    Y d. Master's protest

1286: The anchors should be dropped well out from the pier while at a Mediterranean moor to __________.

    N a. eliminate navigational hazards by allowing the chain to lie along the harbor bottom
    N b. increase the anchor's reliability by providing a large catenary in the chain
    Y c. permit the ship to maneuver in the stream while weighing anchors
    N d. prevent damage to the stern caused by swinging against the pier in the approach

1322: 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 may refuse to take the seaman if the ship will not stop at a U.S. port within 30 days.
    N b. He is required to accept the seaman only if the seaman is medically unfit.
    Y c. He may refuse to take the seaman if the seaman has a contagious disease.
    N d. He is required to take the seaman under any circumstance.

1444: If kinking results while wire rope is being coiled clockwise, you should __________.

    N a. coil it counterclockwise
    N b. not coil it
    Y c. take a turn under
    N d. twist out the kinks under a strain

1509: If an electric cargo winch is being used to lift a draft of cargo and the engine room loses all power, which will occur?

    N a. A pawl, forced by a spring mechanism, will engage the teeth of the bull gear and hold the load.
    Y b. An electromagnetic brake will hold the load where it is suspended.
    N c. The load will fall rapidly to the deck unless the foot brake is engaged.
    N d. The load will slowly lower to the deck under control of the drag of the winch motor.

1561: The Master of any vessel bound on a voyage must apply to a district court when an allegation of unseaworthiness has been made to the Master by __________.

    N a. any member of the crew of the vessel
    N b. any two officers of the vessel and a majority of the crew
    Y c. the First and Second Officers of the vessel or a majority of the crew
    N d. the First Officer of the vessel

1593: A long splice in a line __________.

    Y a. is used in running rigging
    N b. doubles the size of the line
    N c. is only used on fiber rope
    N d. is very weak

1814: In illustration D044DG, the mooring line labeled "D" is called a(n) __________. (DO44DG )

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

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

1869: You are using tackle number 10 in illustration DO29DG to lift a weight of 120 lbs. If you include 10 percent of the weight for each sheave for friction, what is the pull on the hauling part required to lift the weight? (DO29DG )

    N a. 57 lbs.
    N b. 42 lbs.
    N c. 39 lbs.
    Y d. 34 lbs.

1928: Which towing method maintains the most control over the tow?

    N a. Tandem towing
    N b. Honolulu towing
    N c. Tandem tug towing
    Y d. Breasted tug towing

1936: A "gypsy" or "gypsyhead" is a __________.

    N a. punt used for painting over the side
    N b. small, reciprocating steam engine
    Y c. spool-shaped drum fitted on a winch
    N d. swinging derrick

1938: Towing a structure using two tugs approximately side by side, each using one hawser, is referred to as a __________.

    N a. tandem tow
    N b. Honolulu tow
    Y c. breasted tug tow
    N d. tandem tug tow

1978: When towing, the least amount of tension will be on each bridle leg when the two legs __________.

    N a. form a large angle with each other
    Y b. form a small angle with each other
    N c. are of unequal length
    N d. are joined by a fishplate

2039: There is a large shipment of case goods available to be loaded on your vessel. You are to load as many tons as possible in a hold which has 32,300 cubic feet left unfilled by cargo. Each case measures 2-feet high by 2-feet wide by 4-feet long and weighs 500 pounds. If you allow a broken stowage allowance of 10% of the 32,300 feet, what is the nearest whole number of tons which may be loaded?

    N a. 324 tons
    N b. 360 tons
    N c. 363 tons
    Y d. 406 tons

2061: A sheave is a __________.

    Y a. grooved wheel in a block
    N b. line to hold a lifeboat next to the embarkation deck
    N c. partial load of grain
    N d. seaman's knife

2124: You are on watch aboard a vessel heading NW, with the wind from dead ahead, in heavy seas. You notice a man fall overboard from the starboard bow. Which action would NOT be appropriate?

    N a. Hard right rudder
    N b. Throw a lifebuoy to the man, if possible
    N c. Send a man aloft
    Y d. Get the port boat ready

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.

2186: What is the mechanical advantage of tackle number 7? (DO29DG )

    N a. 0
    N b. 0.5
    N c. 1
    Y d. 2

2273: What is the area of a circle with a radius of 4 feet after a sector of 111° has been removed?

    N a. 3.90 sq. ft
    N b. 8.67 sq. ft
    Y c. 34.77 sq. ft
    N d. 50.27 sq. ft

2285: While writing in the logbook at the end of your watch, you make an error in writing an entry. What is the proper way of correcting this error?

    N a. Remove this page of the log book and rewrite all entries on a clean page.
    N b. Carefully and neatly erase the entry and rewrite it correctly.
    N c. Blot out the error completely and rewrite the entry correctly.
    Y d. Cross out the error with a single line, write the correct entry, and initial it.

2305: Which will cause a wire rope to fail?

    N a. Using a medium graphite grease as a lubricant
    N b. Operating a winch too slow
    Y c. Using a sheave with an undersized throat
    N d. A sheave diameter of 24 times the wire's diameter

2377: You are the operator of a towing vessel which collides with a buoy and drags it off station. What should you do if the damage to your vessel is not serious?

    N a. If the buoy is afloat, no action is necessary.
    Y b. Immediately notify the nearest Coast Guard Marine Safety or Inspection Office and no further action is necessary.
    N c. Wait one week and submit form CG-2692 to the nearest Coast Guard Marine Safety or Inspection Office.
    N d. Immediately notify the nearest Coast Guard Marine Safety or Inspection Office and then submit form CG-2692.

2472: A "liner" in riveted construction of a vessel is a(n) __________.

    Y a. small plate which fills the aperture between riveted strakes and the vessel framing
    N b. backing plate which is used to level the strakes while riveting, and then removed
    N c. internal frame to which the side shell is riveted
    N d. seam that is welded after riveting is completed

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

2646: Which statement is true concerning repairs on the hull of a vessel which is to be riveted and welded?

    N a. Riveting must be completed before welding begins.
    N b. Riveting and welding should be done alternately.
    Y c. Welding must be completed before the riveting begins.
    N d. It does not matter in what order the operations are done.

2662: What will NOT increase friction of a liquid flowing in a pipe and cause a loss of suction head?

    N a. Bends in the piping
    Y b. Slowing the pumping rate
    N c. Pipeline valves
    N d. Backing rings for pipe welds

2664: You must shore up a bulkhead due to solid flooding forward. The bulkhead approximates a rectangle. The center of pressure of the shores on the bulkhead should be located __________.

    N a. evenly over the surface of the bulkhead
    N b. approximately one-third of the way up the bulkhead
    Y c. approximately halfway up the bulkhead
    N d. at the bottom of the bulkhead

2909: A mechanical davit is designed to automatically __________.

    N a. position the boat at the embarkation station
    Y b. lift the boat off the inboard chocks
    N c. energize the winch for the falls
    N d. set the brake on the winch

2931: In a national emergency, when communicating via the Navy, messages are sent by precedence. A message designated FLASH will be delivered within __________.

    N a. 3 hours to start of business the following day
    Y b. 10 minutes if possible
    N c. 1 to 6 hours
    N d. 30 minutes to 1 hour

2946: Which single-letter signal, when used by icebreakers on the Great Lakes, may be made by using the ship's whistle?

    N a. E
    N b. I
    Y c. M
    N d. None

3054: The phenomenon known as a "seiche" is most likely to occur on Lake Erie __________.

    N a. during the passage of a rapidly moving warm front
    Y b. when strong winds from the Northeast suddenly diminish
    N c. during the months of May through August
    N d. when the Moon and Sun are in alignment

3088: A "check" line is __________.

    N a. a safety line attached to a man working over the side
    N b. used to measure water depth
    Y c. used to slow the headway of a barge
    N d. used to measure the overhead height of a bridge

3404: The signal man assisting the crane operator first taps the top of his head with his fist and then proceeds to use regular signals. This is the signal to __________.

    N a. use the whip line
    Y b. use the main hoist
    N c. use the auxiliary line
    N d. proceed slowly

3514: Which type of anchor is depicted? (D038DG )

    N a. Stock
    N b. Danforth
    Y c. Patent
    N d. Old-fashioned

3516: The signal man has both arms extended out, palms down, and is moving his arms back and forth. This is the signal for __________.

    N a. keep lifting
    N b. swing right
    N c. swing left
    Y d. emergency stop

3530: Which is NOT a duty of a look-out?

    N a. Refuse to talk to others, except as required by duty.
    N b. Remain standing during your watch.
    N c. Report every sighting.
    Y d. Supervise any deck work going on in the area.

3582: What term indicates the length measured along the summer load line from the intersection of that load line with the foreside of the stem and the intersection of that load line with the after side of the rudder post?

    N a. Length overall
    N b. Register length
    Y c. Length between perpendiculars
    N d. Length on the waterline

3632: You are lifting a one-ton weight with a swinging boom. When comparing the stresses on the rig with the boom at 20° to the horizontal to the stresses when the boom is at 60° to the horizontal, which statement is TRUE?

    Y a. The thrust on the boom is greater at 60°.
    N b. The stress on the topping lift is greater at 60°.
    N c. The stress on the heel block is less at 20°.
    N d. The stress on the head block is less at 60°.

4259: Which statement is FALSE regarding the operation of a crane?

    N a. The crane jib is raised and lowered by the luffing winch.
    N b. The cargo block is raised and lowered by the hoisting winch.
    Y c. The cargo block is raised and lowered by the luffing winch.
    N d. None of the above