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.
73: Aboard ship, vertical flat plates running transversely and connecting the vertical keel to the margin plates are called __________.
Y a. floors N b. intercostals N c. girders N d. stringers 86: 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 N c. centerline Y d. center of gravity 120: You are on a multiple-product tankship and scheduled to load a cargo classed as an aromatic amine. This cargo is incompatible with cargoes classed as __________.
Y a. organic anhydrides N b. ketones N c. phenols N d. esters 246: The force exerted by a propeller which tends to throw the stern right or left is called __________.
N a. slip Y b. sidewise force N c. rotational force N d. thrust 293: Which space(s) is(are) NOT exempt when measuring gross tonnage?
N a. Auxiliary machinery spaces above the deck N b. Steering gear room Y c. Cargo holds N d. Galley in a deckhouse 498: When the dew point of the outside air is higher than the dew point of the air in the cargo hold, you should __________.
N a. energize the exhaust blowers N b. energize the intake blowers Y c. not ventilate the cargo holds N d. ventilate the cargo holds 528: Determine the dew point when the dry bulb temperature is 74°F (23°C) and the wet bulb temperature is 60°F (16°C). (D008DG )
N a. 14°F N b. 20°F N c. 28°F Y d. 50°F 646: What shape barge offers the least resistance in river towing?
N a. A square ended barge Y b. Barges with spoon shaped bows N c. Ship-shaped barges N d. Hopper barges 690: A rescue helicopter's hoist area should have a radius of at least __________.
N a. 6 feet of clear deck N b. 10 feet of clear deck N c. 25 feet of clear deck Y d. 50 feet of clear deck 718: How many board feet of dunnage would you estimate to be in a pile 5 feet wide, 1 foot high and 14 feet long?
N a. 70 Y b. 840 N c. 960 N d. 1080 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. 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 804: Line is called "small stuff" if its circumference is less than __________.
N a. 1/2" N b. 3/4" N c. 1" Y d. 1 3/4" 829: In terms of vessel manning, a watch is the ____________ .
Y a. direct performance of deck or engine operations in a scheduled and fixed rotation N b. performance of maintenance work necessary for the vessel's safe operation, on a daily basis N c. performance of lookout duties N d. direct performance of cargo loading and discharge operations only 926: Usually the most gentle way of riding out a severe storm on a larger vessel is __________.
N a. head on at slow speeds N b. hove to Y c. running before the seas N d. to rig a sea anchor 1097: Which of the knots, bends, or hitches shown in the illustration would you use to properly secure a bosun's chair to a gantline? (D030DG )
N a. I N b. P Y c. R N d. X 1139: The pivoting point of a vessel going ahead is __________.
N a. near the stern N b. at the hawsepipe Y c. about one-third of the vessel's length from the bow N d. about two-thirds of the vessel's length from the bow 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 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 1323: "Ease the rudder" means to __________.
Y a. decrease the rudder angle N b. move the rudder slowly in the direction of the most recent rudder command N c. bring the rudder amidships N d. steer the course which is your present heading 1396: Lifting the anchor from the bottom is called __________.
N a. broaching the anchor N b. shifting the anchor N c. walking the anchor Y d. weighing the anchor 1477: Under the Carriage of Goods by Sea Act of 1936, a vessel will be liable for damage to a cargo when the damage arises out of __________.
N a. delays due to seizure of the vessel N b. fire caused by fault of the carrier N c. strikes or lockouts Y d. improper stowage 1546: What is the best guide for determining the proper scope of anchor chain to use for anchoring in normal conditions?
N a. One shot of chain for every ten feet of water Y b. One shot of chain for every fifteen feet of water N c. One shot of chain for every thirty feet of water N d. One shot of chain for every ninety feet of water 1573: Which statement about splices is TRUE?
N a. A back splice is used to permanently connect two lines together. Y b. A long splice is used to connect two lines that will pass through narrow openings. N c. A short splice is used to temporarily connect two lines. N d. In splicing fiber rope, you would splice with the lay of the line. 1578: A stream of water immediately surrounding a moving vessel's hull, flowing in the same direction as the vessel is known as __________.
N a. directional current N b. forward current N c. propeller current Y d. wake current 1584: The size of wire rope is determined by the __________.
N a. number of strands N b. number of wires in each strand N c. circumference Y d. diameter 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 1784: The "rolling hitch" could be used to __________.
N a. join two lines of different sizes N b. join two lines of equal sizes N c. add strength to a weak spot in a line Y d. act as a stopper to transfer a line under strain 1799: The maximum theoretical stress that can be developed on a guy in a yard and stay rig is limited by the __________.
Y a. lifting capacity of the winch N b. location of the boom N c. position of the guy N d. weight of the load 1813: A snatch block would most likely be used as a __________.
N a. boat fall Y b. fairlead N c. riding pawl N d. topping lift 1910: The knot lettered J is a __________. (DO30DG )
Y a. plain whipping N b. bowline N c. marline hitch N d. becket bend 1928: Which towing method maintains the most control over the tow?
N a. Tandem towing N b. Honolulu towing N c. Tandem tug towing Y d. Breasted tug towing 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 2013: A mooring line that checks forward motion of a vessel at a pier is a __________.
N a. bow line N b. forward bow line Y c. stern line N d. stern breast line 2053: A mooring line leading 45° to the keel, used to check forward or astern movement of a vessel, is called a __________.
Y a. spring line N b. warp line N c. bow line N d. breast line 2063: A "spring line" is __________.
N a. any wire rope used for mooring N b. a fire-warp Y c. a mooring line running diagonally to the keel N d. a mooring line perpendicular to the keel 2124: You are on watch aboard a vessel heading NW, with the wind from dead ahead, in heavy seas. You notice a man fall overboard from the starboard bow. Which action would NOT be appropriate?
N a. Hard right rudder N b. Throw a lifebuoy to the man, if possible N c. Send a man aloft Y d. Get the port boat ready 2238: What is the area of a circle with a radius of 12 feet after a sector of 60° has been removed?
N a. 18.85 square feet N b. 75.40 square feet N c. 94.25 square feet Y d. 376.99 square feet 2249: Which knot should be used to secure a line to a spar when the pull is parallel to the spar? (DO30DG )
N a. G N b. F Y c. P N d. Q 2257: "Cribbing" is __________.
Y a. wooden blocks or dunnage placed between a deck load and the deck N b. the chains and shackles used to secure a deck cargo N c. a crate in which a deck cargo is packaged N d. cardboard separation pieces placed between deck loads to prevent chafing 2311: In a national emergency, when communicating via the Navy, messages are sent by precedence. A message designated FLASH will be delivered within __________.
Y a. 10 minutes if possible N b. 1 to 6 hours N c. 30 minutes to 1 hour N d. 3 hours to start of business the following day 2356: "Hard right rudder" means __________.
N a. jam the rudder against the stops N b. meet a swing to the right, then return to amidships Y c. put the rudder over to the right all the way N d. put the rudder over quickly to 15 degrees right rudder 2452: Which is an advantage of using watertight longitudinal divisions in double bottom tanks?
Y a. Cuts down free surface effect N b. Increases the rolling period N c. Decreases weight because extra stiffeners are unneeded N d. Lowers the center of buoyancy without decreasing GM 2461: In writing up the logbook at the end of your watch, you make an error in writing an entry. What is the proper way of correcting this error?
N a. Carefully and neatly erase the entry and rewrite it correctly. Y b. Cross out the error with a single line, write the correct entry, and initial it. N c. Blot out the error completely and rewrite the entry correctly. N d. Remove this page of the log book and rewrite all entries on a clean page. 2469: While cranking out a quadrantal davit, slippage of the quadrant due to excessive wear or failure of the teeth in the quadrant will cause the __________.
Y a. davit arm to pivot on the traveling nut and the head to fall outboard N b. traveling nut to lock up in place on the worm gear N c. limit switch to engage and hold the traveling nut in position N d. winch brake to lock in position and prevent lowering the boat 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. 2909: A mechanical davit is designed to automatically __________.
N a. position the boat at the embarkation station Y b. lift the boat off the inboard chocks N c. energize the winch for the falls N d. set the brake on the winch 2921: The process of lowering a boom to a horizontal position and onto its deck support is called __________.
N a. spotting a boom N b. collaring a boom Y c. cradling a boom N d. toppling a boom 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. 3165: When steering a vessel, a good helmsman does NOT __________.
N a. consider steering a vessel a highly responsible job Y b. use as much rudder as possible to keep the vessel on course N c. use as little rudder as possible to keep the vessel on course N d. advise his relief of the course being steered 3282: What term indicates the immersed body of the vessel aft of the parallel mid-body?
Y a. Run N b. Stern N c. Counter N d. Flow 3502: The point that is halfway between the forward and after perpendicular and is a reference point for vessel construction is the __________.
N a. half length N b. mid-body N c. center line Y d. amidships 3644: You are drifting in a locale where there is no current. As a rule, your vessel 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 3681: While you are on watch entering port, the Master gives the helmsman a rudder command which conflicts with a rudder command from the Pilot. You should make sure the helmsman __________.
N a. obeys the Pilot Y b. obeys the Master N c. asks you for instructions N d. brings the rudder to a point midway between the two conflicting positions 3776: The tankship Northland is loaded as shown. Use the salmon colored pages in the Stability Data Reference Book to determine the sagging numeral. (Get Table Data)
Y a. 29.70 numeral N b. 33.63 numeral N c. 49.82 numeral N d. 58.33 numeral 4066: What is the MOST irritating to the skin?
N a. Carbon disulfide N b. Ethyl alcohol N c. Isoprene Y d. Oleum 4070: Small floes of rough, hummocky sea ice capable of damaging a vessel __________.
Y a. can usually be detected by radar in a smooth sea at a range of 4 to 6 kilometers N b. are indistinguishable from sea return on the PPI N c. are invisible to radar when covered with a thick layer of snow N d. are usually seen at night before they are close enough to provide a radar echo 4092: To reconnect a broken tow line, it is better to use a polypropylene messenger line because it __________.
N a. has great strength N b. is very supple Y c. floats N d. absorbs shock by stretching 4106: Which of the following are considered to be "road vehicles" that can be carried on Ro-Ro vessels?
N a. Semi-trailer N b. Road train N c. Articulated road train Y d. All of the above 4391: A report of casualty to a vessel must include __________.
N a. the estimated cost of damage N b. the amount of ballast on board Y c. the name of the owner or agent of the vessel N d. an evaluation of who was at fault