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.
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 205: A vessel is to make a voyage between New York and San Juan, Puerto Rico, and return. The crew should be signed on_____________.
Y a. Coastwise Articles N b. Foreign Articles N c. Intercoastal Articles N d. no articles 471: The official identification of a vessel is found in the __________.
N a. Certificate of Inspection N b. Classification Certificate N c. Load Line Certificate Y d. Certificate of Documentation 542: Which best describes a "fishplate" used in towing?
Y a. A triangular-shaped heavy steel plate with a round hole inset from each corner N b. A steel plate in the shape of a flat fish N c. A rectangular-shaped piece of heavy steel plate with four holes N d. A circular piece of heavy steel with three holes forming an equilateral triangle 555: A chain bridle is used when towing astern because it __________.
N a. is easy to connect Y b. provides an effective catenary and absorbs shock due to its weight N c. makes rigging a swivel unnecessary N d. prevents the tow from yawing by the drag of the chains in a seaway 599: When stripping a tank, excessive air in the suction line may cause __________.
N a. an over pressurized line N b. back pressure Y c. loss of suction N d. increase of suction 683: Barges and vessels are ballasted before departure to __________.
Y a. improve their stability N b. avoid polluting waters where liquid ballast may not be discharged N c. prevent free surface effects N d. allow movement of liquids within the barge for tank cleaning 749: Butadiene, inhibited, is labeled as a __________.
N a. combustible liquid Y b. flammable gas N c. flammable liquid N d. flammable solid 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 857: On vessels over 100 gross tons, whose responsibility is it to ensure that all able seamen in the vessel's crew have the documents and qualifications required by law and regulation?
Y a. Master of the vessel N b. USCG Officer in Charge of Marine Inspection N c. Owner or operator of the vessel N d. Company's personnel director 858: The lower hold of your vessel has a bale capacity of 60,000 cubic feet. How many tons of cotton in bales having a stowage factor of 85 can be stowed in the lower hold, assuming a broken stowage factor of 20%?
N a. 141 Y b. 565 N c. 706 N d. 847 953: When bunkering at anchorage which of the following signals must be displayed?
N a. A red flag by day, red light by night Y b. A red flag by day ONLY N c. A red light by night ONLY N d. No signal required at anchorage 1056: In which situation could a vessel most easily capsize?
N a. Running into head seas Y b. Running in the trough N c. Running with following seas N d. Anchored with your bow into the seas 1057: The Certificate of Inspection of a damaged tank barge has expired. What certificate authorizes the barge to move to a repair facility for repair and inspection?
N a. Application for Inspection N b. Change of Employment Y c. Permit to Proceed N d. Temporary Certificate of Inspection 1122: Freeing ports on a vessel with solid bulwarks __________.
N a. prevent stress concentration in the bulwark N b. permit easy jettison of deck cargo in an emergency N c. provide openings through the bulwarks for mooring lines Y d. allow water shipped on deck to flow off rapidly 1183: Which towing equipment can be used to prevent the tripping of a tug?
N a. Bridles N b. Chafing boards Y c. Gob ropes N d. Drogues 1243: You are on watch at sea and find it prudent to call the Master to the bridge due to traffic congestion. The moment that the Master officially relieves you of the conn is whenever __________.
N a. a watchstander announces "Captain's on the bridge" N b. you call the Captain to the bridge in a traffic situation Y c. the Master specifically informs you that he has the conn N d. the Captain states the course being steered 1280: Vertical structural members attached to the floors that add strength to the floors are called __________.
N a. boss plates N b. buckler plates Y c. stiffeners N d. breast hooks 1314: A wire rope rove through two single blocks with two parts at the moving block is used for a boat fall. The weight of the 100-person boat is 5 tons. Compute the required breaking strain. Safety Factor - 6, weight per person - 165 lbs., 10% friction per sheave (2 sheaves).
N a. 18.30 tons B.S. N b. 20.29 tons B.S. Y c. 22.27 tons B.S. N d. 24.31 tons B.S. 1340: The usual depth of a beam bracket is __________.
Y a. 2 1/2 times the depth of the beam N b. 5 times the depth of the beam N c. 10 times the depth of the beam N d. same depth as the beam 1402: What form of ice is of land origin?
N a. Shuga N b. Floe N c. Spicule Y d. Bergy bit 1420: Tensile stress is a result of two forces acting in __________.
Y a. opposite directions on the same line, tending to pull the material apart N b. opposite directions on the same line, tending to compress the object N c. opposite directions along parallel lines N d. the same direction along parallel lines 1499: In illustration D044DG, the mooring line labeled "E" is called a(n) __________. (DO44DG )
N a. bow line N b. forward breast line N c. after spring line Y d. bow spring line 1538: Your vessel is being towed and you are using a tripping rope. A tripping rope of fiber or wire is used to __________.
N a. give added strength to the main tow hawser N b. retrieve the main tow hawser Y c. retrieve the outboard legs of the bridle where they are connected to the fishplate N d. open the pelican hook at the fishplate 1570: What is NOT an advantage of ship construction methods using welded butt joints in the shell plating?
N a. Keeps practically 100% of tensile strength at the joints N b. Reduces frictional resistance Y c. Reduces plate stress N d. Reduces weight 1590: A thirty pound plate would be __________.
N a. 3/8" thick N b. 1/2" thick Y c. 3/4" thick N d. 1" thick 1615: A towing vessel should be on the crest of a wave at the same time as its tow and in the trough at the same time. The term used to describe this is __________.
N a. tow strain N b. catenary length Y c. being in step N d. Williamson's Tow 1624: Which kind of hitch should you use to secure a spar?
N a. Blackwall hitch N b. Stage hitch Y c. Timber hitch N d. Two half hitches 1639: All wire rope used in shipboard cargo gear must be identified and described in a certificate. The certificate shall certify all of the following EXCEPT the __________.
N a. date of the test N b. load at which a test sample broke Y c. name of the vessel N d. number of strands and of wires in each strand 1707: You are proceeding under NCS (Naval Control of Shipping) when it becomes necessary to send a distress message. What precedence would you assign this message?
N a. R (ROUTINE) N b. Z (FLASH) N c. P (PRIORITY) Y d. O (IMMEDIATE) 1888: How many legs does the bridle for an ocean tow have?
N a. One Y b. Two N c. Three N d. Four 1991: Using the graph shown, if the dry bulb temperature is 91°, and the wet bulb temperature is 87°, what is the relative humidity in a cargo hold? (D008DG )
N a. 79% Y b. 85% N c. 91% N d. 98% 1998: When towing in an open seaway, it is important to use a towing line __________.
N a. made only of wire rope, due to possible weather conditions N b. that will have the tow on a crest while your vessel is in a trough Y c. that will have the tow on a crest while your vessel is on a crest N d. with little dip to gain maximum control of the tow 2009: A cargo of canned foodstuffs is packed in cartons. Each carton is 36 cubic feet and weighs 380 pounds. What is the stowage factor of the cargo?
N a. 9.5 N b. 62 Y c. 212 N d. 237 2014: You are using tackle number 12, as shown, to lift a weight. The hauling part of this tackle is bent to the weight hook (w) of tackle number 2. What is the mechanical advantage of this rig? (D029DG )
N a. 9 N b. 10 Y c. 14 N d. 21 2040: The plating indicated by the letter N is known as the __________. (D033DG )
Y a. inner bottom N b. floor riders N c. tank-top rider plating N d. ceiling 2122: What is the name of tackle number 9? (DO29DG )
N a. Single purchase N b. One-two tackle N c. Double whip Y d. Luff tackle 2237: Using the graph in illustration D008DG, if the dry bulb temperature is 76° and the wet bulb temperature is 59°, what is the relative humidity in a cargo hold? (D008DG )
Y a. 34% N b. 47% N c. 76% N d. 79% 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 2460: You are operating a twin-screw vessel and lose your port engine. You continue to operate on your starboard engine only. Which action would you take to move your vessel ahead in a straight line?
Y a. Compensate with right rudder. N b. Compensate with left rudder. N c. Surge the starboard engine. N d. Rudder amidships - no compensation is necessary on a twin-screw vessel. 2494: The major components which determine the length of a catenary in a deployed anchor cable are water depth, cable weight, and __________.
Y a. cable tension N b. water temperature N c. bottom conditions N d. water density 2559: A vessel in Great Lakes service shall carry anchors in accordance with standards established by the __________.
Y a. American Bureau of Shipping N b. Canadian Coast Guard N c. U.S. Coast Guard N d. underwriter of the vessel 2589: The angle at which the anchor flukes penetrate the soil is the __________.
N a. burial angle N b. penetration angle Y c. fluke angle N d. holding angle 2612: When using the anchor to steady the bow while approaching a dock you must be aware of the fact that __________.
N a. the vessel will tend to take a large sheer towards the side where the anchor is down N b. steering control is ineffective in trying to turn to the side opposite to that of the anchor being used N c. the anchor cable must never lead under the hull Y d. using an offshore anchor decreases the chances of the anchor holding 2799: Who publishes the "Canadian List of Lights, Buoys and Fog Signals"?
N a. The U.S. Coast Guard Y b. The Canadian Coast Guard N c. The U.S. Hydrographic Service N d. The Canadian Hydrographic Service 2817: The command "meet her" means the helmsman should __________.
N a. decrease the rudder angle N b. steer more carefully Y c. use rudder to slow the vessel's swing N d. note the course and steady on that heading 2929: A vessel is loaded to her summer marks for a voyage from Montreal, Canada to Duluth, MN via the Great Lakes System. The voyage has been estimated to take nine (9) days. If the vessel departs Montreal on September 28th, which of the following statements is TRUE?
N a. The vessel must be at her summer marks when she arrives at Duluth. N b. The vessel is in violation of the load line requirements. Y c. The vessel's intermediate load line marks may not be submerged after September 30. N d. The vessel must be at her winter marks by the evening of the third day. 2929: A vessel is loaded to her summer marks for a voyage from Montreal, Canada to Duluth, MN via the Great Lakes System. The voyage has been estimated to take nine (9) days. If the vessel departs Montreal on September 28th, which of the following statements is TRUE?
N a. The vessel must be at her summer marks when she arrives at Duluth. N b. The vessel is in violation of the load line requirements. Y c. The vessel's intermediate load line marks may not be submerged after September 30. N d. The vessel must be at her winter marks by the evening of the third day. 2935: You are proceeding under NCS (Naval Control of Shipping) when it becomes necessary to send a distress message. Which precedence would you assign this message?
N a. R (ROUTINE) N b. P (PRIORITY) Y c. O (IMMEDIATE) N d. Z (FLASH) 2996: Advection fog, a common occurrence on the Great Lakes, forms when __________.
N a. air comes in contact with a rapidly cooling land surface N b. frigid arctic air moves across the lakes and becomes saturated Y c. relatively warm air flows over cooler water N d. cool air contacts warm river currents 3074: In securing a towing cable, consideration must be given to letting go in an emergency. The possible whip of towlines when released can be overcome by __________.
N a. increasing the shaft RPM prior to release N b. using a pelican hook for quick release Y c. using preventers N d. using a short chain for the lead through the stern chock 3230: After a collision or accident involving an uninspected vessel, regulations require that the operator assist persons affected, but only if the operator can do so without __________.
N a. further damaging the other vessel N b. undue delay Y c. serious danger to his or her own vessel N d. creating a panic on either vessel 3240: You are the operator of a towing vessel which becomes involved in a collision. By law you must assist __________.
N a. if your vessel is at fault N b. if you can do so without excessive delay Y c. if you can do so without serious danger to your vessel N d. regardless of the circumstances 3275: When underway with a tow, you are required to notify the Coast Guard in which casualty situation?
N a. Damage to property amounting to $12,500 N b. Loss of bridge-to-bridge radio capability N c. An injury requiring first aid treatment Y d. Accidental stranding or grounding 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 3588: Conventional anchors are least likely to hold in a bottom consisting of __________.
N a. soft clay N b. hard mud N c. sand Y d. rock 4090: The BEST holding ground for conventional anchors is_____.
N a. very soft mud Y b. hard mud N c. shale N d. rock 4179: Which of the following actions are stated in the correct order prior to loading or discharging cargo on a Ro-Ro vessel?
N a. Raise/open stern door, lower the stern ramp, 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 Y d. Lower the stern ramp, raise/open the stern door, turn on ventilation for cargo holds 4232: The 30 ton capacity pedestal cranes shown in the illustration can lift a maximum weight of how many tons in the twin mode? (D049DG )
N a. 15 tons N b. 30 tons Y c. 60 tons N d. 120 tons 4383: What does item "A" refer to in this illustration of a 30-ton pedestal crane? (D045DG )
N a. Boom luffing falls Y b. Cargo hoist falls N c. Remote block tagline system N d. Slewing cable