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.
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. 39: Combustible liquids are divided into how many grades?
N a. One Y b. Two N c. Three N d. Four 60: You are on a vessel designed to carry compressed gasses in bulk with a cargo of butadiene. Which statement is TRUE?
N a. The ullage must be padded with compressed air at a minimum pressure of 2 psig. Y b. Silver and copper are prohibited in the parts of valves and fittings in contact with the cargo. N c. The cargo tank may be sampled only when the tank is being filled. N d. The shipping document must specify the exact quantity of butadiene being carried. 67: You are in charge of a U.S. documented vessel. Under title 46 of the United States Code, if you fail to report a complaint of a sexual offense, you may be __________.
Y a. civilly charged and fined N b. criminally charged and jailed N c. held personally liable by the victim and sued N d. All of the above are correct. 157: The proper way to correct a mistake in the logbook is to __________.
Y a. draw a line through the entry, rewrite, and initial the correction N b. draw several lines through the entry, rewrite, and initial the correction N c. erase the entry and rewrite N d. completely black out the entry, rewrite, and initial the correction 213: You are the Master of a single-screw vessel. You are docking at a port which has no tugs available. You decide to drop the offshore anchor to help in docking. The amount of chain you should pay out is __________.
N a. 5 to 7 times the depth of the water Y b. 1 1/2 to 2 times the depth of the water N c. equal to the depth of the water N d. you should NEVER use the anchor to help in docking 285: Which form of navigation may be suspended without notice under defense planning?
N a. celestial Y b. electronic N c. piloting N d. None of the above 361: The strictest load line regulations apply to __________.
N a. gas carriers N b. freighters (break-bulk) Y c. passenger ships N d. tankers 442: "Ease the rudder" means to __________.
N a. move the rudder slowly in the direction of the most recent rudder command Y b. decrease the rudder angle N c. bring the rudder amidships N d. steer the course which is your present heading 466: A twin screw vessel, making headway with both engines turning ahead, will turn more readily to starboard if you __________.
N a. reverse port engine, apply right rudder N b. reverse port engine, rudder amidships Y c. reverse starboard engine, apply right rudder N d. reverse starboard engine, rudder amidships 491: A change of a documented vessel's name can only be made by the __________.
N a. American Bureau of Shipping N b. Commissioner of Customs N c. Treasury Department Y d. Coast Guard 491: A change of a documented vessel's name can only be made by the __________.
N a. American Bureau of Shipping N b. Commissioner of Customs N c. Treasury Department Y d. Coast Guard 508: When the dew point of the outside air is lower than or equal to the dew point of the air in the cargo hold, you should __________.
N a. secure all ventilation N b. shut down the exhaust blowers N c. shut down the intake blowers Y d. ventilate the cargo holds 560: You are loading a cargo that includes cylinders of acetylene aboard your break bulk vessel. Which statement is true?
Y a. The cylinders must be stowed at least 10 horizontal feet from corrosive materials in the same space. N b. Stowage in the upper deck-deck is considered to be the equivalent of "on deck" stowage for this cargo. N c. The cylinders must have a red label for flammability and a green label for compressed gas. N d. The cylinders may be protected from the radiant heat of the Sun by laying a tarp on them. 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 721: The mooring line labeled "F" is called a __________. (DO44DG )
N a. bow line N b. forward spring line Y c. breast line N d. None of the above 724: Using a safety factor of five, determine what is the safe working load for 3-1/2 inch manila line with a breaking stress of 4.9 tons.
N a. 0.82 ton Y b. 0.98 ton N c. 2.45 tons N d. 12.25 tons 726: A common occurrence when a vessel is running into shallow water is that __________.
N a. the wake is less pronounced N b. the vessel is more responsive to the rudder Y c. "squat" will cause a decrease in bottom clearance and an increase in draft N d. All of the above 824: The larger sizes of manila line are measured by their __________.
N a. radius N b. diameter Y c. circumference N d. weight per foot 928: Which of the signals listed is required to be displayed during the day while bunkering?
Y a. A red flag N b. A yellow flag N c. A red and yellow flag N d. A red light 939: What is the purpose of pressure-vacuum relief valves?
N a. Regulation of discharge pressure from cargo pumps N b. Maintaining constant velocity in cargo lines N c. Regulation of suction head on cargo pumps Y d. To maintain a tank or void at atmospheric pressure 1158: A vessel loads 100 tons of glass jars. The mate on watch discovers that some of the cartons have been damaged and has an exception made on the Bill of Lading. What is this document called?
N a. Damage Bill of Lading N b. Letter of Indemnity N c. Non-negotiable Bill of Lading Y d. Unclean Bill of Lading 1184: A new coil of nylon line should be opened by __________.
N a. pulling the end up through the eye of the coil N b. uncoiling from the outside with the coil standing on end N c. taking a strain on both ends Y d. unreeling from a spool 1194: What type of line melts easiest?
N a. Wire N b. Dacron N c. Nylon Y d. Polypropylene 1242: You are a watchstanding mate and have come to the bridge to relieve the watch while underway at sea. The watch should not be transferred __________.
N a. during an engine speed change Y b. during a navigational course change N c. unless the helm is in the "hand" mode N d. All of the above 1380: The deck beam brackets of a transversely framed vessel resist __________.
N a. hogging stresses N b. sagging stresses Y c. racking stresses N d. shearing stresses 1442: You are on an ice-reinforced vessel about to enter pack ice. You should __________.
N a. enter the pack on the windward side where there is a well defined ice edge N b. trim to an even keel or slightly down by the bow to take maximum benefit of the ice reinforcement N c. take maximum advantage of coastal leads caused by offshore winds Y d. look for areas of rotten ice and enter perpendicular to the ice edge 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 1646: What is the normal length of anchor cable used to anchor a vessel?
N a. An amount equal to the depth of the water N b. Two times the depth of water N c. Three to four times the depth of water Y d. Five to seven times the depth of water 1693: What is the stress on the hauling part when lifting a 4900 lbs. weight using a twofold purchase rove to least advantage? (Allow 10 percent of the weight per sheave for friction.)
N a. 980 lbs. N b. 1225 lbs. Y c. 1715 lbs. N d. 1837 lbs. 1739: If two falls are attached to lift a one-ton load, what angle between the falls will result in the stress on each fall being equal to the load being lifted?
N a. 60° N b. 75° Y c. 120° N d. 150° 1768: As a rule, ships of most configurations, when drifting in calm water with negligible current, will lie __________.
N a. bow to the wind Y b. beam to the wind N c. stern to the wind N d. with the wind on the quarter 1792: What is the name of the mark indicated by the letter F? (D003DG )
N a. Fresh water load line N b. Summer load line Y c. Winter load line N d. Tropical load line 1831: A "loose" tow may cause all of the following EXCEPT __________.
N a. loss of maneuverability N b. lines to part N c. damage to the towing vessel and tow Y d. a saving in the transit time 1902: The joint indicated by letter D is a __________. (D033DG )
N a. seam Y b. butt N c. span N d. sheet line 1929: 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 10 feet?
N a. 22.44 T N b. 11.22 T N c. 7.48 T Y d. 5.61 T 2037: You are riding to a single anchor. The vessel is yawing excessively. Which action should be taken to reduce the yawing?
N a. Veer chain to the riding anchor N b. Heave to a shorter scope of chain on the riding anchor N c. Drop the second anchor at the extreme end of the yaw and veer the riding anchor Y d. Drop the second anchor at the extreme end of the yaw, then adjust the cables until the scope is equal 2148: You are the Master of an uninspected diesel towing vessel of 190 GT operating on a regular run from New York to the Gulf of Mexico. Which statement is TRUE?
Y a. All crew members must have Merchant Mariner's Documents. N b. A licensed Chief Engineer is required. N c. Deck watches may be 6 and 6. N d. Able Seamen are not required in the deck crew. 2191: A wooden deck installed on top of the plating lettered N is known as __________. (D033DG )
N a. spar decking N b. furring Y c. ceiling N d. flooring 2206: You are using tackle number 6 in illustration DO29DG to lift a weight of 300 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 )
Y a. 80 lbs. N b. 69 lbs. N c. 55 lbs. N d. 50 lbs. 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 2246: Cargoes that might leak from containers are known as __________.
N a. dirty cargoes N b. caustic cargoes Y c. wet cargoes N d. bulk cargoes 2464: Which term describes a part of a natural fiber line?
Y a. Yarns N b. Twines N c. Lacings N d. Lays 2484: The type of joint formed when an edge of one plate is laid over the edge of the plate to which it is riveted is a __________.
N a. grip joint N b. strap joint N c. thread joint Y d. lap joint 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 2530: Your vessel has gone aground in waters where the tide is falling. The BEST action you can take is to __________.
Y a. set out a kedge anchor N b. shift the vessel's load aft and repeatedly surge the engine(s) astern N c. shift the vessel's load forward and wait until the next high tide N d. slowly bring the engine(s) to full speed astern 2581: How does the effect known as "bank suction" act on a single-screw vessel proceeding along a narrow channel?
Y a. It pulls the stern toward the bank. N b. It heels the vessel toward the bank. N c. It pushes the entire vessel away from the bank. N d. It pulls the bow toward the bank. 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 2976: Which statement is TRUE with respect to shiphandling procedures in ice?
N a. Never go "full astern" at any time while in ice. Y b. Go astern in ice with extreme care - always with rudder amidships. N c. Enter ice at medium speeds to reduce impact. N d. The presence of a snow cover on the ice assists a vessel's progress through an ice field. 3089: How does an icebreaker normally free a ship which has become beset while navigating independently?
N a. By backing down the track and cutting out ice on either bow Y b. By approaching from the stern and crossing ahead at an angle of 20° to 30° to the beset ship's course N c. By overtaking the beset ship, running ahead and then backing down the track to the beset vessel N d. By approaching the vessel from astern and towing the beset vessel stern first 3145: You are the operator of a towing vessel which collides with a buoy and drags it off station. What should you do if the damage to your vessel is not serious?
N a. If the buoy is afloat, no action is necessary. N b. Wait one week and submit form CG-2692 to the nearest Coast Guard Marine Safety or Inspection Office. N c. Immediately notify the nearest Coast Guard Marine Safety or Inspection Office and then submit form CG-2692. Y d. Immediately notify the nearest Coast Guard Marine Safety or Inspection Office and no further action is necessary. 3164: How should you signal the crane operator to lower the boom and raise the load?
N a. Extend arm and point finger in the direction to move the boom. Y b. Extend arm with thumb pointing downward and flex fingers in and out. N c. With forearm vertical and forefinger pointing up, move hand in small horizontal circles. N d. With arm extended downwards and forefinger pointing down, move hand in small horizontal circles. 3170: A license for apprentice mate (steersman) of uninspected towing vessels shall be renewed within what time period before or after the expiration date?
N a. 30 days N b. 90 days N c. 6 months Y d. 12 months 3270: A vessel is tide rode when it is __________.
N a. carrying extra rudder to compensate for the current N b. necessary to adjust the course steered to allow for the current Y c. at anchor and stemming the current N d. being forced off of a pier by the hydraulic effect of the current 3587: Following a serious marine incident, a device to test an individuals breath can be used by __________.
Y a. any individual trained to conduct such tests N b. the marine employer N c. qualified medical personnel only N d. any USCG licensed deck officer 4052: You are arriving in port and are assigned to anchor in anchorage circle B-4. It has a diameter of 700 yards and your vessel's LOA is 600 feet. If you anchor in 11 fathoms at the center of the circle, what is the maximum number of shots of chain can use and still remain in the circle?
N a. 4 shots Y b. 5 shots N c. 6 shots N d. 7 shots 4155: Which factor(s) should be considered when loading vehicles or trailers aboard Ro-Ro vessels?
N a. Layout of decks N b. Vertical clearances N c. Tie-down and lashing Y d. All of the above 4178: Which of the following actions are stated in the correct order prior to loading or discharging cargo on a Ro-Ro vessel?
Y a. Lower the stern ramp, raise/open the stern door, turn on ventilation for cargo holds N b. Turn on ventilation for cargo holds, raise/open the stern door, lower the stern ramp N c. Turn on ventilation for cargo holds, lower the stern ramp, raise/open the stern door N d. Raise/open the stern door, lower the stern ramp, turn on ventilation for cargo holds 4210: Pedestal cranes have limit switches to restrict the movement of which function?
N a. Luff rate limits Y b. Slew travel limits N c. Swivel power limits N d. Slew rate limits 4243: What is/are the advantage(s) of cranes over conventional cargo booms?
N a. Cranes are able to pick up and drop loads over a greater spotting area N b. Increased safety because the deck is clear of running and standing rigging N c. Simplicity of operation of the crane by its operator Y d. All of the above