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.
24: A crack in the deck plating of a vessel may be temporarily prevented from increasing in length by __________.
N a. cutting a square notch at each end of the crack Y b. drilling a hole at each end of the crack N c. slot-welding the crack N d. welding a doubler over the crack 60: You are on a vessel designed to carry compressed gasses in bulk with a cargo of butadiene. Which statement is TRUE?
N a. The ullage must be padded with compressed air at a minimum pressure of 2 psig. Y b. Silver and copper are prohibited in the parts of valves and fittings in contact with the cargo. N c. The cargo tank may be sampled only when the tank is being filled. N d. The shipping document must specify the exact quantity of butadiene being carried. 96: The distance a vessel moves at right angles to the original course, when a turn of 180° has been completed, is called the __________.
N a. advance N b. pivoting point Y c. tactical diameter N d. kick 169: The lowest temperature at which a liquid will give off sufficient vapors to form a flammable mixture with air is known as the __________.
N a. fire point Y b. flash point N c. lower explosive limit N d. threshold limit value 243: A towing vessel becomes tripped while towing on a hawser astern. What factor is MOST important when assessing the risk of capsizing?
N a. Length of the towline Y b. Height of the towline connection N c. Longitudinal position of the towline connection N d. Direction of opposing force 245: The fitting that allows a boom to move freely both vertically and laterally is called the __________.
N a. swivel N b. lizard N c. spider band Y d. gooseneck 265: Which statement is TRUE about hooks and shackles?
N a. Hooks are stronger than shackles of the same diameter. Y b. Shackles are stronger than hooks of the same diameter. N c. Hooks and shackles of the same diameter are of equal strength. N d. All the above may be true, depending on the hook's or shackle's overall length. 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 310: Operators of Uninspected Passenger Vessels are required to keep their Coast Guard License aboard __________.
N a. only when operating more than one mile from shore N b. only when operating at night Y c. only when carrying passengers for hire N d. At all times 319: Static electricity may be built up by the __________.
N a. flow of petroleum through pipes N b. spraying or splashing of petroleum N c. settling of solids or water in petroleum Y d. All of the above 475: In illustration D044DG, the mooring line labeled "F" is called a __________. (DO44DG )
N a. bow line Y b. breast line N c. forward spring line N d. None of the above 499: 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 576: In twin-screw engine installations while going ahead, maneuvering qualities are most effective when the tops of the propeller blades both turn __________.
N a. to starboard Y b. outboard from the center N c. to port N d. inboard toward the center 716: Your vessel is proceeding along a narrow channel. The effect called bank cushion has which effect on the vessel?
Y a. Forces the bow away from the bank N b. Forces the stern away from the bank N c. Forces the entire vessel bodily away from the bank N d. Decreases the draft at the bow 755: When underway with a tow, you are required to notify the Coast Guard in which casualty situation?
Y a. Accidental stranding or grounding N b. An injury requiring first aid treatment N c. Loss of bridge-to-bridge radio capability N d. Damage to property amounting to $12,500 790: 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. 813: The Officers Competency Certificates Convention of 1936 applies to all of these vessels operating seaward of the boundary line EXCEPT a/an ___________ .
N a. offshore supply vessel over 200 gross tons N b. passenger vessel of 295 gross tons Y c. uninspected towing vessel of less than 200 gross tons N d. inspected towing vessel of 305 gross tons 918: Ten triangular piles of piping on the pier are to be loaded - each pile has a 20 foot base, is 15 feet high and 30 feet long. If the breadth of the hold is 60 feet and the piping is to be stowed fore and aft in a 30 foot space, how high will it stow?
N a. 16.6 feet Y b. 25.0 feet N c. 50.0 feet N d. 75.0 feet 969: A tank is loaded with 9,000 barrels of gasoline. The temperature of the product is 80°F (27°C), and it has a coefficient of expansion of .0008. The net amount of cargo loaded is __________.
Y a. 8,856 barrels N b. 8,944 barrels N c. 9,072 barrels N d. 9,144 barrels 980: The perforated, elevated bottom of the chain locker, which prevents the chains from touching the main locker bottom and allows seepage water to flow to the drains, is called a __________.
N a. cradle N b. draft N c. harping Y d. manger 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 1076: You are underway in heavy weather and your bow is into the seas. To prevent pounding, you should __________.
N a. change course, in order to take the seas at an 85 degree angle from the bow Y b. decrease speed N c. increase speed N d. secure all loose gear 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 1162: How does a vessel's rate of turn change when entering shallow water?
N a. It is faster. N b. It is slower. Y c. There is no change. N d. It remains constant for varying propeller revolutions. 1201: When clearing customs for a foreign voyage, which of the following is processed at the custom's house and returned to the vessel?
Y a. Shipping Articles N b. Traveling Curio Manifest N c. Official Logbook N d. Cargo Gear Register 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 1334: Close link chain of not less the 3/4" (or the wire rope equivalent) is required for lashing deck cargoes of timber. What size flexible wire rope would provide the strength equivalent to 3/4" chain, using a safety factor of 5?
N a. 9/16" Y b. 1" N c. 1 1/4" N d. 1 3/8" 1370: The strength of a deck will be increased by adding __________.
N a. camber Y b. deck beam brackets N c. hatch beams N d. sheer 1441: Dead freight is the charge for the __________.
N a. carriage of demise cargo N b. cost of transshipment of over-carried cargo N c. difference in the amount of cargo loaded and the amount of cargo discharged Y d. difference in the amount of cargo loaded and the amount of cargo booked, through no fault of the vessel 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 1564: What is the main reason to slush a wire rope?
N a. Keep the wire soft and manageable Y b. Lubricate the inner wires and prevent wear N c. Prevent kinking N d. Prevent rotting 1574: Wire rope is galvanized to __________.
Y a. protect it from corrosion due to contact with saltwater N b. make it bend more easily N c. increase its strength N d. increase its circumference 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. 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. 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 1959: A vessel is involved in a casualty. The cost of property damage includes the __________.
N a. damage claims awarded to individuals or companies involved in the casualty, up to a maximum of $50,000 N b. loss of revenue while the vessel is being repaired, up to a maximum of $50,000 Y c. cost of labor and material to restore the vessel to the service condition which existed before the casualty N d. All of the above 1970: The structural member indicated by the letter L is a __________. (D033DG )
N a. web frame N b. bilge keel N c. side keel Y d. longitudinal 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 2014: You are using tackle number 12, as shown, to lift a weight. The hauling part of this tackle is bent to the weight hook (w) of tackle number 2. What is the mechanical advantage of this rig? (D029DG )
N a. 9 N b. 10 Y c. 14 N d. 21 2040: The plating indicated by the letter N is known as the __________. (D033DG )
Y a. inner bottom N b. floor riders N c. tank-top rider plating N d. ceiling 2159: What is the mechanical advantage of tackle number 9? (DO29DG )
N a. 1 N b. 2 N c. 3 Y d. 4 2169: What is the mechanical advantage of tackle number 8? (DO29DG )
Y a. 3 N b. 1.5 N c. 1 N d. 0.5 2260: Cargo that gives off fumes that may contaminate other cargo is known as a(n) __________.
N a. delicate cargo N b. dirty cargo N c. toxic cargo Y d. odorous cargo 2260: Cargo that gives off fumes that may contaminate other cargo is known as a(n) __________.
N a. delicate cargo N b. dirty cargo N c. toxic cargo Y d. odorous cargo 2302: What is NOT required to be approved or certified by the U.S. Coast Guard before being used on inspected vessels?
N a. Lifesaving equipment that is in excess of the regulatory minimum N b. Ship's stores that are Class A poisons or Class A explosives Y c. Steel plate used in hull construction N d. EPIRBs 2350: A temporary wire eye splice made with three wire rope clamps will hold approximately what percentage of the total rope strength?
N a. 20% N b. 50% Y c. 80% N d. 99% 2455: The boom indicator on a crane will indicate the __________.
N a. length of the boom Y b. angle of the boom N c. lifting capacity of the boom N d. direction of the boom 2499: Single hull vessels operating exclusively on the Great Lakes must be dry docked at intervals not to exceed __________.
N a. 12 months N b. 24 months N c. 48 months Y d. 60 months 2644: The boat is stowed on the davit rather than on a cradle with which type of davit?
Y a. Crescent N b. Sheath-screw boom N c. Quadrantal N d. Radial 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 2789: Your vessel is approaching the International Bridge on the St. Marys River. If the gage on the bridge, read from top to bottom, indicates 124 ft. and the IGLD (1955) is 600 ft., determine the actual vertical clearances between the existing water level and the lowest point of the bridge over the channel.
Y a. 124 feet N b. 476 feet N c. 724 feet N d. 840 feet 3323: You are proceeding under NCS (Naval Control of Shipping) when it becomes necessary to send a distress message. Which precedence would you assign this message?
N a. P (PRIORITY) Y b. O (IMMEDIATE) N c. R (ROUTINE) N d. Z (FLASH) 3442: The part of the anchor indicated by the letter J is the __________. (D038DG )
N a. crown N b. shank Y c. bill N d. tip 3493: 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?
N a. Able Seamen are not required in the deck crew. Y b. All crew members must have Merchant Mariner's Documents. N c. A licensed Chief Engineer is required. N d. Deck watches may be 6 and 6. 3584: The tripping palm is indicated by which letter? (D038DG )
N a. F Y b. G N c. H N d. J 3693: When the Pilot is embarked he or she __________.
N a. relieves the Master of his duties N b. is solely responsible for the safe navigation of the vessel Y c. is a specialist hired for his or her local navigational knowledge N d. relieves the officer of the watch 4029: Which statement is TRUE concerning toluene?
N a. Its Reid Vapor Pressure is 9.4. N b. The boiling point is 174°F. Y c. It is an aromatic hydrocarbon. N d. It is classified as a grade A flammable liquid. 4161: According to the IMO Code, what are the minimum number of securing points that should be on each side of a "road vehicle", whose gross vehicle mass is between 30 tons and 40 tons, when carried on Ro-Ro vessels?
N a. One N b. Two N c. Three Y d. Four 4212: What is another name for the boom of a crane?
N a. Lift N b. Rider Y c. Jib N d. All of the above 4252: Which action(s) is/are included in crane operations?
N a. Normal boom stowage and shutdown operations N b. Emergency shutdown operation N c. Removing booms from stowage Y d. All of the above