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.
112: You start a centrifugal cargo pump to discharge cargo. The pump works for a while and then loses suction. This could NOT be caused by __________.
N a. leaking shaft seals N b. air pockets in the liquid Y c. high cargo level in the tanks N d. a leaking suction line 177: The measurement of the amount of force a towing vessel is capable of applying to a motionless tow is called __________.
N a. shaft horsepower N b. delivered horsepower Y c. bollard pull N d. towrope pull 200: Which statement concerning a 298 GRT inspected tug engaged in towing from Seattle, WA, to Alaska is TRUE?
N a. No able seamen are required. N b. Crew must be signed on before a Shipping Commissioner. N c. A licensed Master of Towing Vessels may serve as Master. Y d. Each crew member must be issued a certificate of discharge at the time of discharge. 267: Which statement is NOT true concerning the stowage of class 1 explosives?
N a. Class 1.1 explosives may be stowed with class 9 dangerous substances N b. Class 1.4 explosives must be "separated from" a stow of class 5.1 oxidizing materials. Y c. Class 1.4 explosives may not be stowed in the same hold with class 6.1 poisons. N d. Class 1.4 explosives must be "separated from" a stow of class 8 corrosive materials. 312: If you are bunkering and you close off one tank in the line of tanks being filled, the rate of flow to other open tanks on the same line will __________.
Y a. increase N b. decrease N c. stop N d. remain constant 605: You would properly secure a gantline to a bosun's chair with a __________.
N a. fisherman's bend N b. bowline Y c. double sheet bend N d. double blackwall hitch 671: A Permit to Proceed is issued by the __________.
N a. American Bureau of Shipping N b. National Cargo Bureau Y c. U.S. Coast Guard N d. U.S. Department of Labor 734: What is the computed breaking strength of a 4-inch manila line?
N a. 5,280 lbs. N b. 7,700 lbs. N c. 12,200 lbs. Y d. 14,400 lbs. 734: What is the computed breaking strength of a 4-inch manila line?
N a. 5,280 lbs. N b. 7,700 lbs. N c. 12,200 lbs. Y d. 14,400 lbs. 787: While assigned to a 120 GRT vessel, you are required to sign "foreign" articles on a voyage from New York City to which port?
N a. Halifax, Canada Y b. Long Beach, California N c. Veracruz, Mexico N d. Saint Maarten, Netherlands Antilles 809: Which pump must always be primed?
Y a. Centrifugal pump N b. Reciprocating pump N c. Rotary pump N d. All of the above 844: Using a safety factor of five, determine the safe working load of a line with a breaking strain of 20,000 pounds.
Y a. 4,000 N b. 5,000 N c. 20,000 N d. 100,000 962: You are the person in charge of a 199-GT uninspected towing vessel engaged in towing from New York to Mexico and then returning, a distance in excess of 600 miles. Which statement is FALSE?
Y a. The crew members are required to sign articles. N b. All deck crew members are to have a Merchant Mariner's Document. N c. Able seamen are required in the deck crew. N d. The sailors shall be divided into three watches. 971: A journal kept by the officer of the watch in which day to day happenings are recorded regarding the deck department is the __________.
N a. cargo record book Y b. deck rough log N c. bell book N d. Official Logbook 1054: Which mooring line has the least elasticity?
Y a. Dacron N b. Nylon N c. Esterlene N d. Polypropylene 1066: If your propeller is racing in rough weather, you should __________.
Y a. decrease your engine speed N b. ignore it N c. increase your engine speed N d. stop your engine until the rough weather passes 1139: The pivoting point of a vessel going ahead is __________.
N a. near the stern N b. at the hawsepipe Y c. about one-third of the vessel's length from the bow N d. about two-thirds of the vessel's length from the bow 1223: The organization that certifies the safe working load of cargo cranes on a vessel is the __________.
Y a. classification society N b. National Cargo Bureau N c. U.S. Coast Guard N d. none of the above 1289: What would you use to adjust the height of a cargo boom?
N a. Lizard N b. Spanner guy Y c. Topping lift N d. Working guy 1331: The S.S. Microwave has been chartered to the Longline Steamship Company. The Longline Steamship Company agrees to pay all expenses and employ and pay the crew. Which type of contract is involved?
Y a. Bareboat Charter Party N b. Lease Charter Party N c. Time Charter Party N d. Voyage Charter Party 1424: A wire rope for a 10-ton boom on a vessel shows signs of excessive wear and must be replaced. What safety factor should be used when ordering a new wire?
N a. 4 Y b. 5 N c. 6 N d. 7 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 1467: The type of carrier required to file a copy of freight tariffs would be the __________.
Y a. common carrier N b. tramp N c. public vessel N d. bulk carrier 1551: A majority of the crew requests a survey from the American Consul to determine a vessel's seaworthiness. The vessel is found unfit to continue her intended voyage. The Consul allows the vessel to sail to another port where deficiencies can be corrected. The crew must __________.
N a. be discharged and given first class passage back to the original port of signing on in lieu of one month's wages N b. be discharged by the American Consul with additional one month's wages until repairs are made N c. be furnished employment on another vessel returning to the United States which is satisfactory to that crew Y d. comply with the judgment 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 1578: A stream of water immediately surrounding a moving vessel's hull, flowing in the same direction as the vessel is known as __________.
N a. directional current N b. forward current N c. propeller current Y d. wake current 1584: The size of wire rope is determined by the __________.
N a. number of strands N b. number of wires in each strand N c. circumference Y d. diameter 1594: What is the breaking strain of steel wire rope with a 5/8" diameter?
N a. 1.0 tons N b. 6.6 tons Y c. 9.6 tons N d. 15.6 tons 1687: What is the perimeter of a circle with a radius of 4.2 feet?
Y a. 26.39 ft N b. 21.19 ft N c. 17.81 ft N d. 13.20 ft 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 1822: What is the principal danger in attempting to swing a barge on a hawser in order to slow the barge's speed?
N a. Dangerous wakes may result from the swinging barge and capsize the tug. N 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 if the turn is too quick. Y d. The barge may pass under the hawser and capsize the tug. 1902: The joint indicated by letter D is a __________. (D033DG )
N a. seam Y b. butt N c. span N d. sheet line 1925: Which material should NOT be used to secure cargo on deck for a voyage?
N a. Steel chain N b. Wire rope N c. Steel strapping Y d. Fiber rope 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 1957: The strake of shell plating indicated by letter H is known as the __________. (D033DG )
N a. sheer strake N b. outboard keel plate Y c. garboard strake N d. bilge strake 2050: In illustration D044DG, the mooring line labeled "H" is called a(n) __________. (DO44DG )
N a. forward breast line N b. offshore spring line N c. onshore bow line Y d. offshore bow line 2060: In polar regions you should NOT expect to see __________.
N a. mirage effects N b. sea smoke Y c. extensive snowfall N d. false horizons 2091: When operating in an area where sea ice and icebergs are present, which statement is TRUE?
Y a. Icebergs may travel in a direction many degrees different from the sea ice. N b. Both icebergs and sea ice will move in approximately the same direction and at the same speed. N c. Icebergs and sea ice will move in the same direction, but at different speeds due to the sail effect of the berg. N d. Icebergs and sea ice will move in the same direction, but the iceberg will move slower because of its underwater bulk. 2111: You are anchoring in 16 fathoms of water. On a small to medium size vessel, the __________.
N a. anchor may be dropped from the hawsepipe Y b. anchor should be lowered to within 2 fathoms of the bottom before being dropped N c. scope should always be at least ten times the depth of the water N d. scope should always be less than 5 times the depth of the water 2146: You are on a single-screw vessel with a right-handed propeller. The vessel is going full speed astern with full right rudder. The bow will swing __________.
N a. quickly to port, then more slowly to port Y b. probably to port N c. slowly to port, then quickly to starboard N d. probably to starboard 2163: What is the name of tackle number 7? (DO29DG )
Y a. Runner N b. Inverted whip N c. Whip N d. Single purchase 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 2261: The machinery associated with heaving in and running out anchor chain is the __________.
N a. winch Y b. windlass N c. draw works N d. dynamic pay out system 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. 2293: As defined in the regulations governing marine casualties a "marine employer" may be the __________.
N a. owner N b. agent N c. Master Y d. All of the above 2315: Which splice is used to connect two separate lines together?
N a. Back splice N b. Chain splice N c. Eye splice Y d. Long splice 2504: A seaman may have all or part of his wages deposited by allotment to a bank or savings institution. Which of the following is NOT a requirement for this type of allotment?
Y a. The account must be either a checking or savings account. N b. The institution must be insured by the FSLIC or FDIC. N c. The account must be opened by the seaman and maintained in the seaman's name. N d. All of the above are requirements. 2744: An icebreaker assisting a vessel through an ice field would display a visual signal consisting of the code letter "I" (India) to signify that "___________________".
N a. I am altering my course to starboard Y b. I am altering my course to port N c. I am operating astern propulsion N d. My vessel is stopped and making no way through the water 2812: If a tug equipped with flanking rudders is to be turned in a confined circle, when going astern, the stern will move to port the quickest if __________.
Y a. the rudder is hard to port and the flanking rudders are hard to port N b. the rudder is amidships and the flanking rudders are hard to port N c. the rudder is hard to port and the flanking rudders are hard to starboard N d. all rudders are hard to starboard 2944: Your ship is navigating independently in heavy ice when it becomes beset. Which statement is FALSE?
N a. The vessel will most likely require an icebreaker to free her. N b. The vessel may be able to free herself by pumping ballast from side to side. Y c. The propeller is more susceptible to ice damage when turning slowly than when stopped. N d. It is advisable to clear the rudder area of ice by using ahead turns before backing down. 2979: Which statement about shipping coal is TRUE?
N a. Anthracite will generate more methane than bituminous coal. N b. Coal should not be shipped while wet. Y c. Coal should be surface ventilated to remove methane gas. N d. The methane gas generated by coal will react with moisture on the ship's structure and accelerate corrosion. 3036: Which statement about ships operating in ice is FALSE?
N a. Light and partly loaded ships should be ballasted as deeply as possible. Y b. In brash-filled channels, operating with a shallow draft forward is most effective. N c. Traditionally, operating ships light in the ice has been effective in the spring. N d. Good searchlights should be available in the event of night navigation with or without icebreaker escort. 3141: What is NOT a securing system used on a containership?
N a. Lashing system Y b. Stacking system N c. Locking system N d. Buttress system 3269: What provides little or no indication that a vessel is dragging anchor?
Y a. Changing range to an object abeam N b. Drift lead with the line tending forward N c. The cable alternates between slack and heavy tension N d. Changing bearing to a fixed distant object abeam 3430: What is NOT considered "jewelry"?
N a. Steamboat ratchets N b. Manila lines Y c. Buttons N d. Shackles 3434: The Scharnow turn should be used in a man overboard situation only when __________.
N a. the man can be kept in sight from the bridge while maneuvering N b. the turn is started immediately when the man goes over Y c. there has been sufficient time elapsed since the man went over to complete the maneuver N d. the vessel has twin screws to assist in making the turn 4123: The lashings used on Ro-Ro vessels should be capable of withstanding the forces of __________.
N a. any force of gravity acting on the lashes N b. rolling N c. pitching Y d. All of the above 4123: The lashings used on Ro-Ro vessels should be capable of withstanding the forces of __________.
N a. any force of gravity acting on the lashes N b. rolling N c. pitching Y 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 4265: Which statement(s) is/are FALSE concerning crane cargo operations?
N a. Lifting points on all equipment must be safely checked prior to commencing a lift. Y b. Cargo loaded into vehicles and/or containers prior to lifting need not be secured. N c. Never exceed crane manufacturer’s limits concerning the safe working loads of cargo jibs. N d. All the above