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.
2: You are standing the wheelwatch when you hear the cry, "Man overboard starboard side". You should instinctively __________.
Y a. give full right rudder N b. give full left rudder N c. put the rudder amidships N d. throw a life ring to mark the spot 6: Which statement about a tunnel bow thruster is TRUE?
Y a. It provides lateral control without affecting headway. N b. It is fully effective at speeds up to about six knots. N c. It can be used to slow the ship in addition to backing down. N d. It will allow you to hold a position when the current is from astern. 14: Damaged bulkheads often take a permanent set which is independent of the panting or bulge caused by water pressure. To control this, you should __________.
Y a. install shoring so the shoring supports the damaged bulkheads without pushing on them N b. install shoring so that it pushes on the damaged bulkhead while supporting it N c. use jacks or chain falls to remove the set before installing shores N d. place sandbags by the bulkhead without installing shores 28: The stowage factor for a cargo is based upon __________.
N a. one short ton N b. one short metric ton Y c. one long ton N d. one long metric ton 98: A hygroscopic cargo is defined as a cargo __________.
Y a. capable of absorbing moisture in the form of a gas N b. capable of giving off moisture in the form of a liquid N c. that is shipped in a liquid state N d. that will ignite in contact with water 171: You have determined the maneuvering characteristics of your vessel by taking the radar ranges and bearings of an isolated light while making a turn. The results are as listed. Based on this data what is the transfer for a turn of 30°? d035dg
Y a. 40 yards N b. 140 yards N c. 190 yards N d. 230 yards 199: What is a cofferdam?
N a. Tube fitted to an ullage hole N b. Area the product is loaded into Y c. Void or empty space separating two tanks N d. Opening in the deck used for cleaning a tank 199: What is a cofferdam?
N a. Tube fitted to an ullage hole N b. Area the product is loaded into Y c. Void or empty space separating two tanks N d. Opening in the deck used for cleaning a tank 274: What is the difference between net tonnage and gross tonnage?
Y a. Net tonnage is the gross tonnage less certain deductible spaces. N b. Net tonnage is tonnage of cargo compared to tonnage of whole ship. N c. Net tonnage is gross tonnage minus engine and bunker spaces. N d. Net tonnage is the net weight of the ship. 459: Petroleum cargo tanks should not be topped off at deck level when loading on a cold day because __________.
Y a. a subsequent temperature rise will cause the cargo to overflow N b. air pockets may cause the cargo to bubble out of the ullage hole N c. the increased viscosity of the product requires higher loading pressure which increases the chances of a spill N d. the tank valve may be stiff and a spill will occur before the valve can be closed 516: You are going ahead on twin engines with rudder amidships. Your starboard engine stalls. To continue on course, you should __________.
Y a. apply left rudder N b. apply right rudder N c. increase engine speed N d. keep your rudder amidships 519: What is NOT a precaution to be taken when topping off?
N a. Reduce the loading rate. Y b. Notify the engine room of the procedure. N c. Maintain communications with the dock man. N d. Give the operation your undivided attention. 554: Which part of the patent anchor performs the same function as the stock of an old fashioned anchor; that is, forces the flukes to dig in?
N a. Bill or pea N b. Arm N c. Shank Y d. Tripping Palm 607: A lashing used to secure two barges side by side, lashed in an "X" fashion, is called a __________.
Y a. scissor wire N b. towing wire N c. breast wire N d. cross wire 642: In illustration D044DG, the mooring line labeled "B" is called a(n) __________. (DO44DG )
N a. offshore stern line Y b. inshore stern line N c. after spring line N d. after breast line 711: If an alien stowaway is discovered aboard your vessel, his name must be placed on the __________.
N a. Alien Crew List N b. Crew List N c. Passenger List Y d. separate Passenger List marked stowaways 723: What safety precautions must you take when maneuvering on a towing hook?
N a. The engines must be operated on the slow bell. Y b. Clear the afterdeck and fantail of personnel. N c. Lash the hook closed so it does not open accidentally. N d. The towing winch engine must be running. 729: A petroleum liquid has a flash point of 85°F. This is a grade __________.
N a. B flammable liquid N b. C flammable liquid Y c. D combustible liquid N d. E combustible liquid 747: When carrying a cargo of asphalt or molten sulfur, which are carried at temperatures of over 300°F, one of the biggest dangers is __________.
N a. inadequate ullage space N b. having the cargo too cool N c. explosion of vapors after discharge Y d. having to breathe the fumes 786: You are on a single-screw vessel with a right-handed propeller, and you are making headway. When you enter shallow water, __________.
N a. you will have better rudder response N b. your speed will increase without a change in your throttle Y c. your rudder response will become sluggish N d. your vessel will tend to ride higher 835: For towing vessels over 100 gross tons that are permitted to maintain a two-watch system, what percentage of the deck crew must be able seamen?
Y a. 50% N b. 65% N c. 75% N d. 100% 860: Which category of able seaman is not authorized to be counted as an able seaman on a seagoing tug of over 100 gross tons?
N a. Unlimited N b. Limited N c. Special Y d. Special (OSV) 1136: Your vessel is to dock bow first at a pier without the assistance of tugboats. Which line will be the most useful when maneuvering the vessel alongside the pier?
N a. Bow breast line Y b. Bow spring line N c. Inshore head line N d. Stern breast line 1235: You are on watch entering port while the pilot has the conn. The pilot gives a steering command to the helmsman who partially repeats the command. You should immediately __________.
Y a. repeat the Pilot's command and ensure that the helmsman repeats it completely N b. ask the Pilot to repeat the command since the helmsman failed to hear it completely N c. observe the helmsman's wheel action to be sure that it complies with the Pilot's command N d. ignore the helmsman's response as long as it was close to what the Pilot ordered 1298: A Master should file a marine note of protest if __________.
N a. cargo was received at ship side which was damaged in land transit N b. longshore labor went on strike in the port causing undue vessel delay N c. portions of his vessel's cargo were illegally impounded in a foreign port Y d. the vessel encountered heavy weather which might have caused cargo damage 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" 1358: Seeing that all hands are familiar with their duties, as specified in the muster list, is the responsibility of the __________.
Y a. Master N b. Chief Mate N c. safety officer N d. department heads 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 1459: When handling cargo, the majority of cargo gear breakdowns is due to __________.
N a. compression bending of the boom N b. extension failure of the boom Y c. guy failures N d. topping lift failures 1520: A welded joint's effectiveness is considered __________.
N a. 48% N b. 90% Y c. 100% N d. 121% 1549: On your vessel, a wire rope for the cargo gear shows signs of excessive wear and must be replaced. In ordering a new wire for this 10-ton boom, what safety factor should you use?
N a. Three Y b. Five N c. Six N d. Seven 1589: Why is 6X19 class wire rope more commonly used for cargo runners than the more flexible 6X37 wire rope?
Y a. It resists abrasion better. N b. It is longer. N c. It hugs the winch drum better. N d. It is less expensive. 1700: Which letter designates the bilge strake of the vessel? (D001DG )
N a. A N b. B N c. C Y d. D 1763: You are in charge while handling a synthetic hawser on a capstan. The hawser has a heavy strain and you wish to avoid the hawser's slipping on the capstan drum. Which action should you take?
Y a. Back off on the capstan a bit and have the seaman take several more turns on the drum. N b. Have the seaman take a strain on the hawser and carefully have several turns added on the drum. N c. Have more than one seaman hold a good strain on the hawser and continue to heave easy. N d. While continuing to heave slowly on the capstan, have the seaman take several more turns on the drum. 1765: The annual survey for endorsement of a Load Line Certificate must be held within __________.
N a. the three month period immediately following the certificate's anniversary date N b. the three month period immediately preceding the certificate's anniversary date Y c. three months either way of the certificate's anniversary date N d. the three month period centered on the certificate's anniversary date 1788: Which position shown is the most dangerous when tying up? (D019DG )
Y a. I N b. II N c. III N d. IV 1917: How many tons of salt water can be loaded into a flat-ended cylindrical tank with a diameter of 5 feet and a length of 14 feet?
N a. 31.42 N b. 15.71 Y c. 7.85 N d. 6.25 1920: Which form of navigation may be suspended without notice under defense planning?
Y a. electronic N b. celestial N c. piloting N d. None of the above 1944: The garboard strake is indicated by which letter? (D033DG )
N a. A N b. B N c. G Y d. H 1963: What should you do to a line to prevent fraying where it passes over the side of the vessel?
N a. Worm that part of the line. N b. Splice that part of the line. Y c. Cover it with chafing gear. N d. Install a cleat. 2039: There is a large shipment of case goods available to be loaded on your vessel. You are to load as many tons as possible in a hold which has 32,300 cubic feet left unfilled by cargo. Each case measures 2-feet high by 2-feet wide by 4-feet long and weighs 500 pounds. If you allow a broken stowage allowance of 10% of the 32,300 feet, what is the nearest whole number of tons which may be loaded?
N a. 324 tons N b. 360 tons N c. 363 tons Y d. 406 tons 2068: You intend to tow a barge with one tug and expect continuous high winds from the north. To reduce the yaw of your tow, you should __________.
N a. reduce the draft of the barge Y b. shorten one leg of the bridle N c. place bulky deck loads as far aft as possible N d. trim the barge down by the bow 2098: Snow has obliterated surface features and the sky is covered with uniform, altostratus clouds. There are no shadows and the horizon has disappeared. What is this condition called?
N a. Ice blink Y b. Whiteout N c. Water sky N d. Aurora reflection 2151: Many dangerous cargoes are stowed on deck because of the __________.
N a. danger to crew and cargo N b. necessity of periodic inspection N c. possible need to jettison Y d. All of the above 2152: Your vessel has the symbol shown inscribed on the side. Which statement concerning this symbol is TRUE? (DO22DG )
N a. This represents the load line marks when engaged on a voyage upon the Great Lakes. N b. The line directly under the triangle is at the same level as the summer load line. N c. The symbol is the equivalent of a load line marking and is used by government vessels (USN, MSC, USCG) only. Y d. The applicable gross and net tonnage of the ship will change if this mark is submerged and the load line mark is visible. 2196: You are using tackle number 10 to lift a weight. The hauling part of this tackle is bent to the weight hook (w) of tackle number 4. What is the mechanical advantage of this rig? (DO29DG )
N a. 24 Y b. 20 N c. 13 N d. 9 2267: The knot lettered K in illustration DO30DG is a __________. (DO30DG )
Y a. sailmaker's whipping N b. carrick bend N c. barrel hitch N d. stopper 2352: The recessed areas on a wildcat are called __________.
N a. pawls N b. sockets Y c. pockets N d. devil's claws 2471: To determine the number of able seamen required on an inspected vessel, you should check the __________.
N a. Load Line Certificate N b. operations manual N c. Safety of Life at Sea Certificate Y d. Certificate of Inspection 2708: Which statement is TRUE with respect to the load line markings shown. (D031DG )
Y a. A vessel displaying these marks may load in the salt waters of the St. Lawrence River. N b. Vessels engaged solely on Great Lakes voyages are not required to show these marks. N c. U.S. flag vessels less than 100 feet in length and less than 200 gross tons are not required to show these marks. N d. U.S. flag vessels of 100 gross tons and upward must show these marks. 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 2956: You are proceeding under NCS (Naval Control of Shipping) and wish to send a message concerning an initial enemy contact. Which precedence would you assign this message?
Y a. Z (FLASH) N b. P (PRIORITY) N c. R (ROUTINE) N d. O (IMMEDIATE) 3116: You are lifting a 5-ton weight with a single whip rove on a swinging boom set at an angle of 20° to the horizontal. Use the formula for the size of a shackle with a safe working load and determine the minimum size shackle that should be used to secure the head block to the boom?
N a. 1 3/8 inch N b. 1 1/2 inch Y c. 1 3/4 inch N d. 1 7/8 inch 3492: The Master of a passenger vessel which is not required to maintain an Official Logbook must keep a record of the number of passengers received and delivered from day to day. This record must be available for a period of __________.
N a. 6 months Y b. 12 months N c. 24 months N d. 36 months 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 3544: Wire rope should be renewed when the __________.
N a. outer wires are rusted Y b. outer wires are worn to half their original diameter N c. inner core appears dry N d. certification period expires 4024: An icebreaker displaying a flag hoist which consists of the code letters "WO" (Whiskey Oscar) is indicating that __________.
Y a. icebreaker support is finished N b. icebreaker support is commencing N c. the icebreaker is icebound N d. the icebreaker is beset 4047: Your vessel is to dock bow in at a pier. Which line will be the most useful when maneuvering the vessel alongside the pier?
N a. Inshore head line Y b. Bow spring line N c. Stern breast line N d. Bow breast line 4183: Which of the following lashing gear used aboard Ro-Ro vessels should be maintained when not in use?
N a. Chain N b. Wire rope N c. Webbing Y d. All of the above 4209: Pedestal cranes have limit switches to restrict the movement of which function?
N a. Slew travel limits N b. Turntable limits N c. Luff travel limits Y d. All of the above