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.


36: The distance that a vessel travels from the time that the order to put engines full astern until the vessel is dead in the water is known as __________.


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?


180: Your tank vessel is loading a hazardous cargo. The allowance for expansion is based on ambient temperatures of what maximum range?


296: You are on a course of 000°T and put the rudder right 30°. In which direction will the transfer be measured?

    N a. 000°T
    Y b. 090°T
    N c. 180°T
    N d. 270°T

324: A "chock" is a __________.

    N a. deck fitting used to secure mooring lines
    Y b. casting fitted at the side of a weather deck, used as a fairlead
    N c. sharp block of wood used to support hygroscopic cargo
    N d. smoke pipe for the galley stove

428: Your vessel is going from a warm climate to a cold climate with a hygroscopic cargo. Which statement is TRUE?

    Y a. You must ventilate constantly and vigorously to combat ship sweat.
    N b. You should ventilate; there is little danger of ship sweat, but a possibility of cargo sweat.
    N c. There is danger of heavy cargo sweat if you ventilate.
    N d. There is little danger of any sweat problem.

429: A tank is loaded with 9,000 barrels of gasoline. The temperature of the product is 90°F (32°C), and it has a coefficient of expansion of .0008. What is the net amount of cargo loaded?

    N a. 8856 bbls
    Y b. 8784 bbls
    N c. 8820 bbls
    N d. 9216 bbls

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

504: Anchors are prevented from running out when secured by the __________.

    N a. brake
    N b. devil's claw
    N c. pawls
    Y d. All of the above

594: A bollard is found on the __________.

    N a. beach
    N b. deck
    Y c. pier
    N d. towed vessel

597: Wages due a seaman may be attached by the court for the __________.

    N a. payment of monthly bills
    N b. payment of creditors
    Y c. support of a minor child
    N d. All of the above

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

654: A rope made of a combination of wire and fiber is known as __________.

    N a. independent
    N b. lang lay
    N c. preformed
    Y d. spring lay

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

    N a. 6 months
    N b. 1 year
    N c. 2 years
    Y d. 5 years

767: On the cargo manifest, the total weight of an empty cargo box is the __________.

    Y a. tare weight
    N b. net weight
    N c. gross weight
    N d. cargo weight

770: The ratio of the height of a vessel's rudder to its width is referred to as the __________.

    Y a. aspect ratio
    N b. constriction ratio
    N c. rudder ratio
    N d. steering ratio

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

854: A piece of small stuff (small line) secured to an object to prevent it from going adrift is a __________.

    Y a. lanyard
    N b. keeper
    N c. noose
    N d. stopper

887: The condition of a towline must be monitored by ______________ .

    N a. keeping record of the towline's initial minimum breaking strength
    N b. keeping record of each retest of the towline's minimum breaking strength
    N c. conducting routine visual inspections of the towline
    Y d. All of the above

1058: The damage to a vessel is over $25,000. Who must notify the nearest Coast Guard Marine Safety or Marine Inspection Office as soon as possible?

    N a. The owner of the vessel
    N b. The Master of the vessel
    N c. The person in charge of the vessel at the time of casualty
    Y d. Any one of the above

1063: You have been pulled aloft in a bosun's chair rigged to a mast that you intend to paint. You are now supporting your weight by seizing the hauling part and the standing part of the gantline in one hand. Your next procedure in securing the bosun's chair is to __________.

    N a. secure the tail of the standing part leading from the becket bend to the mast
    Y b. dip the bight of the hauling part around your back and up in front of you to form the hitch
    N c. take a strain on the hauling part by having it led to the gypsy head on a winch
    N d. secure the standing part of the gantline to the hauling part by taking turns of marlin and tying off

1122: Freeing ports on a vessel with solid bulwarks __________.

    N a. prevent stress concentration in the bulwark
    N b. permit easy jettison of deck cargo in an emergency
    N c. provide openings through the bulwarks for mooring lines
    Y d. allow water shipped on deck to flow off rapidly

1124: Which material makes the strongest mooring line?

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

1212: What is NOT characteristic of the conditions which would be experienced by a vessel located southeast of an approaching eastward-moving storm center on the Great Lakes?

    Y a. Falling barometer
    N b. A westerly wind
    N c. Lowering clouds
    N d. Rain or snow

1256: You are docking an oceangoing single-screw vessel under normal circumstances with a single tug. The tug is usually used to __________.

    Y a. control the bow and is tied to the offshore bow
    N b. control the stern and is tied to the stern on the offshore side
    N c. pull the vessel into the slip and is tied to the bow
    N d. push the ship bodily alongside and is tied to the offshore side amidships

1269: What is meant by the term "topping the boom"?

    N a. Lowering the boom
    Y b. Raising the boom
    N c. Spotting the boom over the deck
    N d. Swinging the boom athwartships

1466: When dropping anchor, you are stationed at the windlass brake. The most important piece(s) of gear is(are) __________.

    N a. a hard hat
    N b. a long sleeve shirt
    N c. gloves
    Y d. goggles

1515: In a national emergency, when communicating via the Navy, messages are sent by precedence. A message designated ROUTINE will be delivered within __________.

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

1543: Which is normally used to hold wire rope for splicing?

    N a. Come along
    N b. Jigger
    Y c. Rigger's screw
    N d. Sealing clamp

1560: Which arrangement of shell plating is used most in modern shipbuilding?

    N a. Clinker
    Y b. Flush
    N c. In-and-Out
    N d. Joggled

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

1673: A sail hook is used for __________.

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

1758: As operator of a 199 GT towing vessel sailing foreign, it shall be your duty to enter in the Official Logbook or other permanent record __________.

    N a. all information contained on the barge's Certificate of Inspection
    N b. the condition of all towing gear to be used
    N c. all navigational aids to be used
    Y d. the barges load line and draft readings

1836: While towing, what is the principal danger in attempting to swing a barge on a hawser in order to slow the barge's speed?

    N a. The barge may swing too quickly and run over the tug.
    Y b. The barge may pass under the hawser and capsize the tug.
    N c. Free surface affect 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.

2001: You are using tackle number 9 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. 52 lbs.
    Y b. 39 lbs.
    N c. 30 lbs.
    N d. 27 lbs.

2016: The revolving drum of a winch used to haul lines is called a __________.

    N a. bull gear
    Y b. gypsyhead
    N c. spanner
    N d. wildcat

2089: In addition to the load lines indicated in illustration D003DG, some vessels have a Winter North Atlantic line. Which statement about this load line mark is TRUE?

    N a. It is carried on VLCC/ULCC type vessels and allows reduced freeboard considering their size.
    N b. It is marked above line B in the diagram.
    N c. It is applied to vessels on restricted trade routes between the United Kingdom, Iceland, and Northern European countries.
    Y d. It applies only to vessels not exceeding 328 ft. navigating in the Winter North Atlantic zones.

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

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

2143: Your vessel was damaged and initially assumed a significant list and trim; however, further increase has been slow. Based on this data, what should you expect?

    N a. The slowing is only temporary and the vessel will probably suddenly capsize or plunge from loss of stability due to change in the waterplane area.
    Y b. The vessel can probably be saved if further flooding can be stopped.
    N c. The vessel will continue to slowly list and/or trim due to the free surface effect and free communication effect.
    N d. The vessel will suddenly flop to the same or greater angle of list on the other side and may capsize.

2238: What is the area of a circle with a radius of 12 feet after a sector of 60° has been removed?

    N a. 18.85 square feet
    N b. 75.40 square feet
    N c. 94.25 square feet
    Y d. 376.99 square feet

2461: In writing up 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. Carefully and neatly erase the entry and rewrite it correctly.
    Y b. Cross out the error with a single line, write the correct entry, and initial it.
    N c. Blot out the error completely and rewrite the entry correctly.
    N d. Remove this page of the log book and rewrite all entries on a clean page.

2508: What is required to launch a boat stowed in a crescent davit?

    N a. Hoist the boat clear of the cradle.
    N b. Release the outboard part of the cradle.
    N c. Rig the tricing lines.
    Y d. Crank the crescent out.

2528: Which entry on a dangerous cargo manifest concerning the classification of a cargo is correct?

    Y a. Class 8
    N b. Class 3 - flammable liquid
    N c. Division 2.2 - nonflammable gas
    N d. All of the above are correct

2540: In small craft terminology, all of the anchor gear between a boat and her anchor is called the __________.

    N a. stock
    N b. chock
    N c. scope
    Y d. rode

2560: The tankship Northland is loaded as shown. Use the salmon colored pages in the Stability Data Reference Book to determine the hogging numeral. (Get Table Data)

    N a. 101.02 numeral
    N b. 91.36 numeral
    N c. 72.43 numeral
    Y d. 52.79 numeral

2636: When riveted joints occur at the ends of plating they are called __________.

    N a. trailers
    N b. terminals
    N c. seams
    Y d. butts

2761: A short ton is a unit of weight consisting of __________.

    N a. 1,000 pounds
    Y b. 2,000 pounds
    N c. 2,205 pounds
    N d. 2,240 pounds

2822: Which statement about stopping a vessel is TRUE?

    N a. A lightly laden vessel requires as much stopping distance as a fully laden vessel when the current is from astern.
    N b. A vessel is dead in the water when the back wash from astern operation reaches the bow.
    N c. A tunnel bow thruster can be used in an emergency to reduce the stopping distance.
    Y d. When a vessel is dead in the water any speed displayed by Doppler log reflects the current.

2890: A vessel cannot comply with all of the SOLAS requirements due to its construction. Where will this be indicated?

    N a. Nowhere; the vessel must comply to engage in international trade.
    N b. On the reverse of the SOLAS certificate
    Y c. On the Exemption Certificate
    N d. On the Certificate of Inspection

2938: Which statement concerning storm surges on the Great Lakes is FALSE?

    Y a. They are common along the deeper areas of the lakes.
    N b. They cause rapid differences in levels between one end of the lake and the other.
    N c. The greatest water level difference occurs when the wind is blowing along the axis of the lake.
    N d. If the wind subsides rapidly, a seiche effect will most likely occur.

3060: Which characteristic is an advantage of a butterfly valve as compared to a gate valve?

    N a. Precise adjustment of cargo flow
    N b. Faster rate of cargo flow
    Y c. Easier operation
    N d. Less chance of leaks

3394: The crown of the anchor shown is indicated by which letter? (D038DG )

    N a. K
    N b. J
    Y c. H
    N d. G

3589: A vessel has been surveyed in a foreign port and found unseaworthy as a result of neglect. A seaman on this vessel is entitled to discharge and __________.

    N a. transportation to the port of engagement
    N b. one month's pay only
    N c. one month's pay or transportation to the nearest U.S. port, whichever is the least amount
    Y d. one month's pay or transportation to the nearest U.S. port, whichever is the greater amount

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

3631: The number of certificated able seamen and lifeboatmen required on board is listed in the __________.

    Y a. Certificate of Inspection
    N b. American Bureau of Shipping code
    N c. Muster List ("Station Bill")
    N d. Safety of Life at Sea Convention

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°.

3652: You are lifting a one-ton weight with a swinging boom. When comparing the stresses in 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?

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

4022: Your vessel is being assisted through an ice field in Thunder Bay by the Canadian Coast Guard icebreaker Alexander Henry. The starboard lookout reports that the icebreaker has run up the code flag "N" (November). What action should you take?

    N a. Reduce speed
    Y b. Stop your engines
    N c. Reverse your engines
    N d. Stop your vessel instantly

4206: Which piece(s) of equipment is/are required to "twin-up" 30-ton pedestal cranes aboard a crane vessel?

    Y a. Equalizing beam
    N b. Portable power swivel
    N c. 20-foot container spreader
    N d. All of the above

4263: Which statement(s) is/are TRUE concerning crane cargo operations?

    N a. Lifting points on all equipment must be safely checked prior to commencing a lift.
    N b. Cargo loaded into vehicles and/or containers prior to lifting needs to be properly secured so as to prevent shifting during transport.
    N c. Never exceed crane manufacturer’s limits concerning the safe working loads of cargo jibs.
    Y d. All the above