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.
252: You have orders to load cargoes of carbon disulfide, diisopropylamine and pyridine on your multi-product tankship. Which statement is true?
N a. Carbon disulfide may be carried in NOS. 1 and 2 center tanks and diisopropylamine in NOS. 1 and 2 wing tanks. Y b. Pyridine and diisopropylamine may not be carried in tanks having a common header vent. N c. Pyridine must be separated from carbon disulfide by two barriers (cofferdams, voids, empty tanks, etc.). N d. A tank of diisopropylamine may be used to separate a tank of pyridine from a tank of carbon disulfide. 299: Cargo transfer operations on a tank vessel need NOT be stopped when __________.
Y a. a tug comes alongside while the tanker is loading grade D and E cargoes N b. a large, fresh oil spill is discovered immediately adjacent to the side of the tanker N c. there is an electrical storm in the vicinity N d. there is a fire on the dock or on a nearby vessel 378: In preparation for receiving chilled reefer cargo, the reefer space has been precooled for over twenty-four hours. Loading may begin when the space has been cooled to a temperature between __________.
N a. -10°F (-23°C) and +10°F (-12°C) N b. 12°F (-11°C) and 20°F (-7°C) Y c. 28°F (-2°C) and 40°F ( 4°C) N d. 42°F (6°C) and 55°F (13°C) 406: A twin-screw vessel with a single rudder is making headway. The engines are full speed ahead. There is no wind or current. Which statement is FALSE?
N a. If one screw is stopped, the ship will turn toward the side of the stopped screw. N b. The principal force which turns the ship is set up by the wake against the forward side of the rudder. Y c. Turning response by use of the rudder only is greater than on a single-screw vessel. N d. With the rudder amidships, the ship will steer a fairly steady course. 477: When underway with a tow, you are required to notify the Coast Guard in which casualty situation?
N a. An injury requiring first aid treatment N b. Damage of bridge-to-bridge radio capability Y c. Accidental stranding or grounding N d. Damage to property amounting to $12,500 489: Your tank vessel is fully loaded, and you find that she is down slightly by the head. To adjust the trim, you may __________.
N a. add ballast aft N b. load more cargo aft Y c. shift cargo aft N d. All of the above 701: The Safety Equipment Certificate shows that the vessel conforms to the standards of the __________.
N a. U.S. Coast Guard N b. American Bureau of Shipping N c. American Salvage Association Y d. S.O.L.A.S. Convention 741: A vessel has sustained damage in a collision with another vessel. It is necessary to have a Seaworthy Certificate before the vessel sails. Who will issue this certificate?
N a. American Consul Y b. Classification Society N c. Captain of the Port N d. Officer in Charge, Marine Inspection 843: If the Master of a US-flag towing vessel replaces any crew member with a non-US citizen, he/she must ensure that the ___________ .
N a. replacement holds a license or document equivalent in experience and training to a mariner holding US credentials N b. replacement can communicate with other crew members to the extent required by regulations N c. vessel is on a foreign voyage, outside US jurisdiction, and not operating above the US outer continental shelf Y d. all of the above 880: The projecting lugs of the rudderpost which furnish support to the rudder are called __________.
N a. bases Y b. gudgeons N c. pintles N d. rudder lugs 890: A term applied to the bottom shell plating in a double-bottom ship is __________.
N a. bottom floor Y b. outer bottom N c. shear plating N d. tank top 914: When natural fiber rope gets wet, the __________.
N a. overall strength of the line will decrease Y b. line shrinks in length N c. line will become more elastic N d. line will be easier to handle 981: When a vessel is entering or leaving a port, a record of engine speeds is kept in the __________.
Y a. bell book N b. deck rough log N c. Official Logbook N d. engine rough log 990: Freeboard is measured from the upper edge of the __________.
N a. bulwark Y b. deck line N c. gunwale bar N d. sheer strake 998: When steering on autopilot which of the following input conditions may NOT have an effect on the control of the steering gear?
Y a. Non-followup N b. Rudder adjustment N c. Weather adjustment N d. All the above may be activated 1044: Using a safety factor of 6, determine the safe working load of a line with a breaking strain of 30,000 pounds.
N a. 4,000 lbs. Y b. 5,000 lbs. N c. 20,000 lbs. N d. 100,000 lbs. 1077: A seaman dies during a voyage. What is NOT required to be entered into the Official Log?
Y a. Statement that the Master has taken custody of the deceased's MMD and passport N b. An inventory of the money and property N c. Statement of the wages due N d. Statement as to the total deductions to be made from the wages 1098: During the course of a voyage, a seaman falls on the main deck and injures his ankle. The Master should submit a Report of Marine Accident, Injury or Death if the __________.
Y a. injured is unfit for duty N b. injured is able to return to work N c. injury results in loss of life only N d. injury is the result of misconduct 1258: While your vessel is docked port side to a wharf, a sudden gale force wind causes the vessel's stern lines to part. The stern begins to fall away from the dock, and no tugs are immediately available. Which measure(s) should you take FIRST?
N a. Notify the engineroom of the need for propulsion. Y b. Shut down any cargo transfer that's in progress. N c. Let go the port anchor and veer to a short scope of chain. N d. Obtain assistance from the terminal to put new stern lines out. 1260: The function of the bilge keel is to __________.
Y a. reduce the rolling of the vessel N b. serve as the vessel's main strength member N c. add strength to the bilge N d. protect the vessel's hull when alongside a dock 1272: You are on a tankship carrying benzene in bulk. Which statement is TRUE?
N a. No other cargoes may be carried due to the possibility of contamination by a carcinogen. N b. The crew quarters must have positive-pressure ventilation to prevent the fumes from entering the living spaces. N c. Benzene is not a cancer-causing agent. Y d. Personnel working in regulated areas must use respirators. 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 1484: A metal eye spliced into a wire is called a __________.
N a. cyclops N b. fish eye Y c. thimble N d. chip 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 1654: Which knot should be used to bend two hawsers together for towing?
Y a. Double carrick bend N b. Fisherman's bend N c. Heaving line bend N d. Rolling hitch 1670: The term "strake" is used in reference to __________.
N a. rudder mountings N b. anchor gear Y c. hull plating N d. vessel framing 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 1818: When comparing twin screw tug to single-screw tugs, which statement about a twin-screw tug is FALSE?
N a. If one engine fails, you do not lose control of the tow. N b. It is more maneuverable. Y c. It develops more bollard pull for the same horsepower. N d. It is generally subject to more propeller damage from debris in the water. 1923: Disregarding friction, a twofold purchase when rove to disadvantage has a mechanical advantage of __________.
N a. 2 N b. 3 Y c. 4 N d. 5 1924: The knot lettered I as shown is a __________. (DO30DG )
N a. square knot N b. round knot Y c. bowline on a bight N d. timber hitch 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 1966: The turning circle of a vessel making a turn of over 360 degrees is the path followed by the __________.
N a. bow N b. bridge Y c. center of gravity N d. centerline 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 2027: Your vessel is issued a load line certificate dated 27 May 1992. What is NOT an acceptable date for one of the surveys for endorsements?
N a. 28-Feb-93 Y b. 27-Nov-93 N c. 26-Aug-94 N d. 27-May-95 2062: The vessel shown has broken down and you are going to take her in tow. The wind is on her starboard beam. She is making more leeway than you. Where should you position your vessel when you start running lines? (DO25DG )
N a. A N b. B N c. C Y d. D 2081: A seaman is reported missing in the morning and was last seen after coming off the mid-watch. Which type of turn would you use to return to the track-line steamed during the night?
Y a. Williamson N b. Racetrack N c. 180° turn N d. Anderson 2106: A racetrack turn would be better than a Williamson turn in recovering a man overboard if __________.
N a. the man has been missing for a period of time Y b. the sea water is very cold and the man is visible N c. there is thick fog N d. the wind was from astern on the original course 2135: A load line certificate is valid for how many years?
N a. 1 N b. 2 N c. 3 Y d. 5 2179: A design modification of an anchor chain which prevents kinking is the __________.
N a. detachable link Y b. stud link N c. Kenter link N d. connecting link 2192: The part of a windlass which physically engages the chain during hauling or paying out is the __________.
N a. devil's claw N b. bull gear Y c. wildcat N d. cat head 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 2242: What is the area of a circle with a radius of 21 feet after a sector of 120° has been removed?
N a. 115.45 sq. ft N b. 230.91 sq. ft N c. 461.81 sq. ft Y d. 923.63 sq. ft 2278: You will load and carry a bulk cargo of sulfur at ambient temperature. Which statement is true?
N a. Wooden covers must be laid over the bilge wells to prevent the sulfur from entering the bilges. Y b. Bulk sulfur may be carried without a special permit providing the vessel complies with all applicable regulations. N c. The major characteristic of this cargo is that it forms sulfuric acid upon contact with water. N d. Other hazardous material may not be stowed in the same hold as the sulfur but may be carried on deck above the hold. 2305: Which will cause a wire rope to fail?
N a. Using a medium graphite grease as a lubricant N b. Operating a winch too slow Y c. Using a sheave with an undersized throat N d. A sheave diameter of 24 times the wire's diameter 2342: How many tons of salt water can be loaded into a flat ended cylindrical tank with a diameter of 3 feet and a length of 8 feet?
Y a. 1.62 N b. 1.98 N c. 3.23 N d. 6.46 2566: The welds used to join shell plates in flush construction are known as __________.
Y a. butt welds N b. seam welds N c. fillet welds N d. continuous welds 2662: What will NOT increase friction of a liquid flowing in a pipe and cause a loss of suction head?
N a. Bends in the piping Y b. Slowing the pumping rate N c. Pipeline valves N d. Backing rings for pipe welds 2736: Distances on the Great Lakes System are generally expressed in __________.
N a. miles above the entrance to the St. Lawrence Seaway (MASLW) N b. miles above the head of the passes (AHP) N c. nautical miles Y d. statute miles 2762: Which vessel is exempt from the load line and marking requirements for vessels operating on the Great Lakes System?
N a. A 300 GT tank barge operating exclusively on Lake Michigan N b. A 200 GT passenger vessel operating between Duluth, MN and Munising, MI N c. A 79-foot, 150 GT pleasure craft operating on the St. Lawrence River Y d. A 500 GT dry cargo river barge operated continuously between Calumet Hbr Chicago, IL and Burns Hbr, IN 2795: The York-Antwerp Rules relate to the __________.
N a. minimum required number of officers and crew Y b. settlement of general average claims N c. ship owner's responsibilities to provide a well-found vessel in a charter party N d. navigation regulations that apply in the English Channel 2900: Which statement about Naval Control of Shipping in wartime is TRUE?
Y a. It is mandatory in wartime. N b. It is mandatory in hazardous areas and voluntary in other areas. N c. It is mandatory only for vessels sailing in convoy. N d. It is mandatory for vessels bound foreign and voluntary for vessels in the coastwise trade. 2930: A large vessel is equipped with a controllable pitch propeller. Which statement is TRUE?
Y a. When dead in the water, it is often difficult to find the neutral position and slight headway or sternway may result. N b. When going directly from full ahead to full astern, there is complete steering control. N c. When the vessel has headway and the propeller is in neutral, there is no effect on rudder control. N d. When maneuvering in port, full ahead or astern power can usually be obtained without changing shaft RPM. 3146: How should you signal the crane operator to use the main hoist?
N a. Use one hand to give any motion signal, and place the other hand motionless in front of the hand giving the motion signal. N b. Extend arm with the thumb pointing up and flex the fingers in and out for as long as the load movement is desired. N c. First tap your elbow with one hand, and then proceed to use regular signals. Y d. First tap the top of your head with your fist, and then proceed to use regular signals. 3248: The rope which is the lightest is __________.
N a. manila N b. nylon Y c. polypropylene N d. dacron 3494: Nylon rope is often used in the makeup of a towline because it __________.
N a. floats Y b. stretches N c. handles easily N d. resists rot 3691: On the cargo manifest, the gross weight of a box containing cargo is the weight of the __________.
N a. cargo N b. box Y c. cargo and box N d. rate weight 3938: With a given load on the cargo hook, tension in a single span topping lift __________.
N a. increases as the boom's angle to the horizontal increases N b. is at a maximum when the boom is at a 45° angle to the horizontal Y c. increases as the boom's angle to the horizontal decreases N d. decreases as the boom's angle to the horizontal decreases 4016: Which statement is TRUE concerning weather conditions on the Great Lakes?
N a. When a vessel is south of an eastward-moving storm center, the approach of the low is evidenced by winds from the north to northeast. Y b. When a vessel is north of an eastward-moving storm center, changes in the weather are less distinctive than when sailing south of the center. N c. The most destructive storms usually come from the northwest or north. N d. Thunderstorms are most likely to develop from November through April. 4133: What is used when securing light vehicles aboard Ro-Ro vessels?
N a. Chain lever or turnbuckle N b. Chain N c. Wire Y d. None of these 4214: What does a jib refer to on a crane?
Y a. Boom N b. Topping lift N c. Control cab N d. Slewing control