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.
41: Considering the manning requirements for U.S. vessels (100 gross tons and above), your cargo vessel has a deck crew of 20 men, exclusive of the officers. How many of these men do the manning regulations require to be Able Seamen?
N a. 5 N b. 7 N c. 10 Y d. 13 61: Deckhands onboard towing vessels shall be divided into 3 watches when on a trip exceeding __________.
Y a. 600 miles N b. 700 miles N c. 800 miles N d. 1000 miles 140: Your tankship is carrying a 30% solution of hydrogen peroxide. The cargo containment system must have a permanent inert gas system. While discharging this cargo the inert gas system must maintain a minimum pressure of __________.
Y a. 0.5 psig N b. 3.0 psig N c. 5.0 psig N d. atmospheric pressure 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 292: Stress on the topping lift of a swinging boom can be reduced by __________.
N a. rigging a back stay Y b. raising the boom N c. increasing the mechanical advantage of the cargo purchase N d. taking all slack out of the preventer 433: When a tow is trimmed by the stern it is said to __________.
N a. hog N b. sag Y c. drag N d. list 570: A chain bridle is preferable to a wire rope towing bridle on a long ocean tow because chain __________.
N a. is more flexible and has the ability to absorb shock because of its weight N b. is less subject to wear and damage from abrasion N c. requires little maintenance Y d. All of the above 645: A vessel's Certificate of Documentation __________.
N a. may be retained by the owner at the home port OR kept on the vessel N b. must be posted under transparent material in the pilothouse Y c. must be carried on board N d. must be kept on file at the corporate offices of the owner or operator 765: The owner or Master of a vessel pushing ahead or towing alongside must ensure that each of the following is appropriate for the vessel's horsepower and tow arrangement EXCEPT _________ .
Y a. hydraulic couplings N b. face wires N c. push gear N d. spring lines 795: Who certifies the safe working load of cargo booms on a vessel?
N a. U.S. Coast Guard Y b. American Bureau of Shipping N c. Society of Naval Architects and Marine Engineers N d. The Ship's Master 830: On which vessels are the officers and deck crew allowed to operate under a two-watch system on voyages of less than 600 miles?
N a. Towing vessels N b. Offshore supply vessels N c. Barges, when manned Y d. All of the above 904: In order to help protect a natural fiber rope from rotting, the line must be __________.
Y a. dried, and stowed in a place with adequate ventilation N b. stowed in a hot, moist compartment N c. stowed on deck at all times N d. stowed in any compartment 916: A condition where two currents meet at the downstream end of a middle bar can be determined by a __________.
N a. small whirlpool N b. smooth patch of water Y c. V-shaped ripple with the point of the V pointing downstream N d. V-shaped ripple with the point of the V pointing upstream 917: What is the period of validity of a Safety Management Certificate?
Y a. 60 months N b. 48 months N c. 42 months N d. 36 months 1020: The Plimsoll mark on a vessel is used to __________.
N a. align the vessel's tail shaft N b. determine the vessel's trim Y c. determine the vessel's freeboard N d. locate the vessel's centerline 1021: A vessel's Classification Certificate is issued by the __________.
Y a. American Bureau of Shipping N b. National Cargo Bureau N c. United States Coast Guard N d. United States Customs 1150: In ship construction, frame spacing is __________.
N a. greater at the bow and stern Y b. reduced at the bow and stern N c. uniform over the length of the vessel N d. uniform over the length of the vessel, with the exception of the machinery spaces, where it is reduced due to increased stresses 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 1296: To ensure the best results during the Mediterranean moor, the chains should __________.
N a. be crossed around the bow N b. tend out at right angles to the bow N c. tend aft 60°From each bow Y d. tend forward 30° on either bow 1330: Beams are cambered to __________.
N a. increase their strength Y b. provide drainage from the decks N c. relieve deck stress N d. All of the above 1502: 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)
Y a. 49.73 numeral N b. 52.76 numeral N c. 55.29 numeral N d. 57.93 numeral 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. 1613: Which splice should you use in order to make a permanent loop in a line?
N a. Back splice Y b. Eye splice N c. Long splice N d. Short splice 1700: Which letter designates the bilge strake of the vessel? (D001DG )
N a. A N b. B N c. C Y d. D 1730: A disk with a horizontal line through its center, equivalent to the summer load line, is called the __________.
N a. deadrise mark N b. maximum allowable draft mark Y c. Plimsoll mark N d. tonnage mark 1750: A grapnel is a __________.
N a. device for securing a chain topping lift N b. hook to prevent the anchor cable from slipping Y c. device used to drag for a submerged cable or line N d. type of clam bucket used for discharging bulk cargo 1796: Which safety check(s) should be made before letting go the anchor?
N a. See that the anchor is clear of obstructions. N b. See that the chain is all clear. N c. See that the wildcat is disengaged. Y d. All of the above 1808: Which organization would conduct a survey of the insulation in a reefer compartment prior to loading cargo?
N a. U.S. Customs Service N b. OSHA Y c. American Bureau of Shipping N d. National Cargo Bureau 1852: What is normally used to pass a mooring line to a dock?
N a. Distance line N b. Gantline Y c. Heaving line N d. Tag line 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. 1888: How many legs does the bridle for an ocean tow have?
N a. One Y b. Two N c. Three N d. Four 1998: When towing in an open seaway, it is important to use a towing line __________.
N a. made only of wire rope, due to possible weather conditions N b. that will have the tow on a crest while your vessel is in a trough Y c. that will have the tow on a crest while your vessel is on a crest N d. with little dip to gain maximum control of the tow 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 2074: You are proceeding to a distress site. The survivors are in liferafts. What will make your ship more visible to the survivors?
N a. Steering a sinuous course N b. Steering a zig-zag course Y c. Turning on all available deck lights at night N d. Dumping debris over the side to make a trail to your vessel 2075: The knot lettered E is a __________. (DO30DG )
N a. stopper hitch N b. blackwall hitch Y c. timber and half hitch N d. bowline on a bight 2078: While towing, bridle legs of unequal lengths may cause __________.
N a. the bridle to foul Y b. the shorter leg to fail N c. chafing on the fairlead or bitts N d. a bent swivel 2199: What is the name of tackle number 2? (DO29DG )
N a. Whip N b. Onefold purchase N c. Single purchase Y d. Gun tackle 2231: What is the mechanical advantage of tackle number 2? (DO29DG )
N a. 0.5 N b. 1 Y c. 2 N d. 3 2241: The letter M indicates a(n) __________. (D033DG )
Y a. web frame N b. intercostal N c. stringer N d. cant frame 2384: What is the volume of a sphere with a radius of 3 feet?
Y a. 113.08 cubic ft. N b. 96.57 cubic ft. N c. 37.69 cubic ft. N d. 28.23 cubic ft. 2478: A "contra-guide" is a type of __________.
N a. bow thruster N b. cargo gear N c. steering engine Y d. rudder 2486: Which weld fault can only be detected by a method that examines the internal structure of a weld?
N a. Undercut N b. Lack of reinforcement N c. Overlap Y d. Lack of penetration 2778: Assume that your vessel has just entered Lake Erie by way of the Welland Canal and is proceeding in a southwesterly direction. Which statement about the aids to navigation you can expect to encounter along the route is TRUE?
Y a. The characteristics of buoys and other aids are as if "returning from seaward" when proceeding in this direction. N b. All aids are maintained by the U.S. Coast Guard, 9th Coast Guard District, Cleveland, Ohio. N c. All red even-numbered buoys should be kept on your port side when proceeding in this direction. N d. Lighted aids, fog signals, and radio beacons maintained by Canada are not included in the Great Lakes Light List. 2817: The command "meet her" means the helmsman should __________.
N a. decrease the rudder angle N b. steer more carefully Y c. use rudder to slow the vessel's swing N d. note the course and steady on that heading 2860: How are riveted lap joints made watertight?
N a. The faying surfaces are coated with white lead (or similar product) before the rivets are set. N b. A sealing weld bead of 1/8" or less pitch is run along the plate edge. Y c. The plate edge is split close to an adjacent plate and mechanically forced into contact with the adjacent plate. N d. A properly riveted joint will be watertight; any leakage is stopped by setting up on the rivets. 2869: When more than one vessel is being assisted by an icebreaker, distances between vessels should be constant. Which signal should be given by a vessel which is ahead of another and whose speed suddenly begins to drop?
N a. Four short blast on the whistle N b. A flag hoist consisting of the code figure "4" Y c. A flag hoist consisting of the code figure "5" N d. A flag hoist consisting of the code letters "FE" (Foxtrot-Echo) 2870: A single-screw vessel going ahead tends to turn more rapidly to port because of propeller __________.
N a. discharge current N b. suction current Y c. sidewise force N d. thrust 2933: Your vessel is to dock bow first at a pier. Which line will be the most useful when maneuvering the vessel alongside the pier?
N a. Stern breast line Y b. Bow spring line N c. Bow breast line N d. Inshore head line 3022: You are in the process of adding a barge to your tow. A line run from your power capstan and around timber heads on your tow is made fast on the new barge so that it can be pulled into position. This line is called a __________.
N a. scissors wire Y b. capstan line N c. spring line N d. fore and aft line 3395: The holding power of an anchor at a given scope of cable increases when the __________.
Y a. amount of chain lying along the bottom increases N b. length of the catenary is reduced N c. mooring line tension is increased N d. amount of chain lying along the bottom decreases 3610: You have a tow of chemical barges. The mate reports an ammonia smell around the head of the tow. You would suspect a leak in the barge carrying __________.
N a. methyl chloride N b. heptane N c. propanolamine Y d. morpholine 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 4057: Your vessel is to dock bow in at a pier without the assistance of tugboats. Which line will be the most useful when maneuvering the vessel alongside the pier?
Y a. Bow spring line N b. Inshore head line N c. Stern breast line N d. Bow breast line 4140: The disadvantage(s) of using web lashing on light vehicles aboard Ro-Ro vessels is that it __________.
N a. deteriorates in sunlight N b. cuts on sharp edges N c. is vulnerable to damage and pilferage Y d. All of the above 4140: The disadvantage(s) of using web lashing on light vehicles aboard Ro-Ro vessels is that it __________.
N a. deteriorates in sunlight N b. cuts on sharp edges N c. is vulnerable to damage and pilferage Y d. All of the above 4172: What should be done after putting down the ramp on a Ro-Ro vessel, prior to loading or discharging cargo?
N a. Turn on red cargo light. Y b. Turn on ventilation for cargo holds. N c. Call out the deck department for all hands. N d. None of the above 4213: What does a jib refer to on a crane?
Y a. Boom N b. Topping lift N c. Control cab N d. Liftline 4270: Which immediate action should the operator of a pedestal crane take if crane control is lost?
Y a. Let go of both control levers and return to neutral position. N b. Call the engine room. N c. Disconnect the power to the pedestal. N d. Call the electrician. 4379: When relieving the helm, the new helmsman should know the __________.
N a. maximum rudder angle previously used N b. gyro error N c. variation Y d. course per magnetic steering compass