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.
111: You are the licensed Master of a towing vessels operating between New York and Tampa, Florida. If you carry four (4) deckhands onboard, how many must be able seamen?
N a. 1 N b. 2 Y c. 3 N d. 4 206: In stopping distances of vessels, "head reach" can best be described as the __________.
N a. difference between the vessel's speed through the water at any instant and the new speed ordered on the telegraph N b. distance the vessel has actually run through the water since a change of speed was ordered Y c. distance the vessel will run between taking action to stop her and being stationary in the water N d. speed at which a vessel should proceed to ensure that she will run a predetermined distance, once her engines have been stopped 236: As the propeller turns, voids are formed on the trailing and leading edges of the propeller blades causing a loss of propulsive efficiency, pitting of the blades, and vibration. These voids are known as __________.
N a. advance Y b. cavitation N c. edging N d. slip 304: To warp a vessel means to __________.
N a. anchor the vessel N b. bring the head into the wind N c. clean the decks Y d. move the vessel by hauling on lines 309: When planning the loading or discharging of a VLCC (100,000 DWT+) what is the most important consideration?
N a. Draft and trim Y b. Limits of the bending moments N c. Rate of discharging N d. Rate of loading 326: In order to back a right-handed, single-screw vessel in a straight line, you will probably need to use __________.
N a. very little rudder N b. some left rudder Y c. some right rudder N d. full left rudder 342: You are on a multiple-product chemical tanker with orders to load diethylamine. What is NOT a requirement for transporting this cargo?
N a. You must have two toxic vapor detectors or the pumproom must meet special requirements. N b. Each crew member must be provided with an emergency escape breathing apparatus. Y c. A person taking cargo samples must wear protective clothing. N d. If you are also carrying allyl alcohol, the venting systems must be segregated. 354: A "stopper" is __________.
Y a. a short length of line used for temporarily holding another line N b. a snatch block for handling a topping lift N c. an engine order telegraph N d. the brake on a cargo winch 397: Which statement is TRUE concerning deep well self-priming pumps?
N a. When loading oil cargo, it is always loaded via the discharge line through to the pump until the tank is topped off. Y b. Stripping systems are generally eliminated for the purposes of cargo handling. N c. In recent years deep well pumps have become increasingly unpopular in product tankers and medium size crude ships. N d. There is no danger of damaging the pump from overheating. 411: Tonnage tax is officially based upon the figures obtained from the __________.
Y a. Admeasurement Certificate N b. deadweight scale N c. displacement scale N d. Load Line Certificate 447: One reason a tug's towing bitts are located forward of the rudders is because __________.
N a. it makes it easier to hook up the towing hawser N b. this is where the towhook is located Y c. this allows more responsive steering N d. it is traditional 566: The BEST way to steer a twin-screw vessel if you lose your rudder is by using __________.
N a. one engine and a steering oar N b. both engines at the same speed N c. one engine at a time Y d. one engine running at reduced speed and controlling the vessel with the other 615: When a wedge of water builds up between the head of the barge and the bank it is referred to as __________.
Y a. bank cushion N b. bank suction N c. bow wave N d. veering cushion 619: What is NOT a requirement for the safe and effective use of a crude oil washing system?
N a. Strip all tanks and remove the bottom residue. N b. Use an inert gas system while washing tanks. Y c. Use portable washing machines to reach areas obscured by structural members in the tanks. N d. Decant one meter from the source tank for the tank cleaning machines. 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. 663: While towing astern, if your towing hawser becomes taut it results in __________.
N a. more catenary in the towing hawser Y b. less catenary in the towing hawser N c. more yaw N d. less yaw 746: Which effect does speed through the water have on a vessel which is underway in shallow water?
N a. A decrease in the speed results in a decrease in steering response and maneuverability. Y b. An increase in speed results in the stern sucking down lower than the bow. N c. An increase in speed results in the vessel rising on an even plane. N d. A decrease in speed results in the vessel sucking down on an even plane. 783: The owner or Master of a towing vessel shall ensure that each person that directs and controls the movement of the vessel can accomplish all of the following EXCEPT ___________ .
N a. evaluate the danger of each closing visual or radar contact N b. adjust speed with due regard for the weather and visibility Y c. reduce speed only where local speed limits are posted N d. enter all required test and inspection results in the vessel's log or other record carried on board 820: A partial deck in a hold is called a(n) __________.
N a. weather deck Y b. orlop deck N c. shelter deck N d. main deck 864: During the manufacture of line, yarns are twisted together in the __________.
Y a. opposite direction from which the fibers are twisted together to form strands N b. same direction the fibers are twisted to form strands N c. opposite direction from which the fibers are twisted together to form the line N d. opposite direction from which the fibers are twisted together forming cables 897: Which factor(s) might indicate that a towline should be removed from service?
N a. Visible damage to the towline, including fishhooks. N b. Measurements showing a decrease in diameter. N c. A surface condition of corrosion and discoloration. Y d. All of the above 958: You are in a tropical port. The refrigeration machinery on a container loaded with air-cooled fruit fails. It cannot be repaired for 18 to 24 hours. Which step should you take to reduce the temperature rise and spoilage of the fruit?
N a. Discharge a cylinder of nitrogen into the container Y b. Shade the container and periodically hose it down N c. Seal any ventilation openings and add dry ice N d. Spread ice over the top layer and in any voids within the container 1001: Which is supplied to the vessel by the U.S. Coast Guard?
N a. Bell book N b. Cargo gear register Y c. Official Logbook N d. Rough Logbook 1069: Which step is NOT generally taken when gas-freeing a tank?
N a. Washing the tank interior with sea water Y b. Application of degreasing solvents N c. Removal of corrosion products and sludge N d. Fresh air ventilation 1146: While your vessel is docked port side to a wharf, a sudden gale force wind causes the vessel's bow lines to part. The bow begins to fall away from the dock, and no tugs are immediately available. Which measure(s) should you take FIRST?
N a. Call the Master and the deck gang. N b. Slip the stern lines, let the vessel drift into the river, and then anchor. Y c. Let go the starboard anchor. N d. Obtain assistance and attempt to put some new bow lines out. 1157: What is a correct reply to a pilot's request, "How's your head"?
N a. "Steady" Y b. "Passing 150°" N c. "Checked" N d. "Eased to 5° rudder" 1167: A vessel will "squat" when it proceeds underway __________.
N a. only in deep water N b. only in shallow water Y c. in all depths of water N d. only in narrow channels 1196: You are landing a single-screw vessel, with a right-hand propeller, starboard side to the dock. When you have approached the berth and back the engine, you would expect the vessel to __________.
N a. lose headway without swinging Y b. turn her bow toward the dock N c. turn her bow away from the dock N d. head into the wind, regardless of the side the wind is on 1226: You are docking a vessel starboard side to with the assistance of two tugs. You are attempting to hold the vessel off by operating both tugs at right angles to the vessel and at full power. You must ensure that __________.
N a. steerageway is not taken off N b. the bow doesn't close the dock first N c. the bow closes the dock first Y d. the ship has no headway at the time 1350: A deck beam does NOT __________.
N a. act as a beam to support vertical deck loads Y b. lessen the longitudinal stiffness of the vessel N c. act as a tie to keep the sides of the ship in place N d. act as a web to prevent plate wrinkling due to twisting action on the vessel 1426: Forty-five fathoms is marked on the anchor chain by __________.
N a. one turn of wire on the first stud from each side of the detachable link N b. two turns of wire on the second stud from each side of the detachable link Y c. three turns of wire on the third stud from each side of the detachable link N d. four turns of wire on the fourth stud from each side of the detachable link 1540: In ship construction, keel scantlings should be the greatest __________.
N a. at each frame Y b. amidships N c. one-third the distance from the bow N d. one-third the distance from the stern 1581: A vessel is found to be seaworthy after a complaint in writing to the American Consul by the Chief and Second Mates. The cost of the survey is to be paid by the __________.
N a. American Consul Y b. Chief and Second Mates N c. Vessel's agent N d. vessel's owners 1616: In moderate wind and current what should be the length of chain with a single anchor?
Y a. 5 times the depth of the water in good holding ground N b. 10 times the depth of the water in shallow water N c. 2 times the depth of the water in poor holding ground N d. 8 times the depth of the water in deep water 1616: In moderate wind and current what should be the length of chain with a single anchor?
Y a. 5 times the depth of the water in good holding ground N b. 10 times the depth of the water in shallow water N c. 2 times the depth of the water in poor holding ground N d. 8 times the depth of the water in deep water 1672: You are to load a consignment of lumber. Each piece measures 2-inches thick, 10-inches wide and 16-feet long. There are 30,000 pieces in the shipment. How many board feet would be listed on the Bill of Lading?
Y a. 800,000 N b. 1,200,000 N c. 1,440,000 N d. 14,400,000 1734: Which knot reduces the strength of a line by the LEAST amount?
N a. Bowline N b. Clove hitch N c. Sheet bend Y d. Two half hitches 1752: Your containership has a container displaying a hazardous cargo placard. The placard has the number 2199 on it. This indicates that it is carrying what cargo?
N a. Furan Y b. Phosphine N c. Adiponitrile N d. Xylenol 1773: What size block shell should be used with a 4-inch manila line?
N a. 8" Y b. 12" N c. 16" N d. 24" 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 1811: You are towing a large barge on a hawser. Your main engine suddenly fails. What is the greatest danger?
N a. The tug and the tow will go aground. N b. The tow will endanger other traffic. Y c. The tow will overrun tug. N d. The tow will block the channel. 1820: If a drill required by regulations is not completed, the Master or person in charge must __________.
N a. report this immediately to the Commandant of the Coast Guard Y b. log the reason for not completing the drill N c. conduct two of the required drills at the next opportunity N d. All of the above 1832: The run of plating labeled A is known as the __________. (D033DG )
N a. sheer strake Y b. stringer plate N c. deck strake N d. deck longitudinal 1886: The knot lettered R is a __________. (DO30DG )
Y a. double becket bend N b. bowline N c. fisherman's bend N d. round turn and two half hitches 1915: A butt is indicated by which letter? (D033DG )
N a. J N b. F N c. E Y d. D 1940: Nonflammable gases should have what kind of label?
N a. Skull and crossbones N b. White Y c. Green N d. Red 2000: The vessel has broken down and you are going to take her in tow. The wind is on her starboard beam. Both vessels are making the same amount of leeway. Where should you position your vessel when you start running lines? (D025DG )
N a. A N b. B Y c. C N d. D 2042: Which statement about the deck line is TRUE?
N a. The top of the deck line is marked at the highest point of the freeboard deck, including camber, at the midships point. Y b. A vessel with wooden planks on a steel deck will have the deck line marked at the intersection of the upper line of the wood sheathing with the side shell. N c. The deck edge is marked at the intersection of the freeboard deck with the side shell, at the lowest point of sheer, with the vessel at even trim. N d. On a vessel with a rounded stringer-sheer plate, the deck line is marked where the stringer plate turns down from the plane of the deck line. 2174: A vessel puts into the port of Kobe, Japan to discharge cargo. While awaiting completion of the cargo operation, the vessel contracts with a local shipyard to have the hull chipped, scaled, and painted. How is the cost of this maintenance handled with the Collector of Customs?
Y a. A declaration is required and duty is involved on the total cost. N b. No declaration is required since this is considered routine maintenance. N c. A declaration is made and duty is charged on the materials only. N d. A declaration is made, but duty is charged on the labor only. 2251: The letter I indicates the keel. Which of the following plates is NOT part of the keel? (D033DG )
N a. Center vertical keel N b. Rider plate Y c. Longitudinal girder N d. Flat plate keel 2547: In a national emergency, when communicating via the Navy, messages are sent by precedence. A message designated IMMEDIATE will be delivered within __________.
N a. 3 hours to start of business the following day Y b. 30 minutes to 1 hour N c. 1 to 6 hours N d. 10 minutes if possible 2550: When a small craft's anchor fouls in a rocky bottom, the first attempt to clear it should be made by __________.
N a. hauling vertically on the line N b. making the line fast to the bitt and bringing the vessel further forward Y c. reversing the angle and direction of pull, with moderate scope N d. increasing the scope and running slowly in a wide circle with the anchor line taut 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) 2968: On the Great Lakes, winter storms compound the ice threat by bringing a variety of wind, wave, and weather problems on an average of every __________.
N a. two days N b. three days Y c. four days N d. five days 3173: 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 N b. 1 to 6 hours Y c. 10 minutes if possible N d. 30 minutes to 1 hour 3840: 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?
N a. The thrust on the boom is greater at 20°. N b. The stress on the topping lift is greater at 60°. Y c. The stress on the heel block is less at 60°. N d. The change in angle of elevation has no effect on the stresses in the head block. 4042: You are on a 120,000 DWT loaded bulk carrier. What is the maximum safe docking speed when coming alongside?
N a. 0.1 foot per second (0.06 knot) Y b. 0.2 foot per second (0.12 knot) N c. 0.5 foot per second (0.30 knot) N d. 0.75 foot per second (0.44 knot) 4141: What is/are the advantage(s) of using web lashing on light vehicles aboard Ro-Ro vessels?
N a. Good working life N b. Light and easy to handle N c. Flexible Y d. All of the above 4182: Which lashing gear used aboard Ro-Ro vessels should be painted or soaked in oil when not in use?
Y a. Chain N b. Wire rope N c. Webbing N d. All of the above 4186: How could lashing gear used aboard Ro-Ro vessels be stowed when not in use?
Y a. Drape along brackets N b. Leave in place while back loading cargo to save time N c. Hang vertically in the paint locker N d. All of the above