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.
16: When underway and proceeding ahead, as the speed increases, the pivot point tends to __________.
N a. move aft Y b. move forward N c. move lower N d. remain stationary 42: The vapor pressure of a substance __________.
N a. decreases as temperature increases Y b. increases with the temperature N c. is not affected by temperature N d. may increase or decrease as the temperature rises 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 91: You are the person in charge of a 199 GRT uninspected towing vessel engaged in coastwise towing from the Gulf of Mexico to New York, a distance in excess of 600 miles. Which statement is FALSE?
N a. The deckhands shall be divided into 3 watches. N b. Able seamen are required in the deck crew. N c. All crew members shall have Merchant Mariner's Documents. Y d. Certificates of Discharge are not required to be issued. 153: The proper way to correct a mistake in the logbook is to __________.
N a. erase the entry and rewrite N b. draw several lines through the entry, rewrite, and initial the correction N c. completely black out the entry, rewrite, and initial the correction Y d. draw one line through the entry, rewrite, and initial the correction 226: Which statement is TRUE concerning the vessel's slipstream?
N a. It has no effect on the steering of the vessel. N b. It has no effect on the rudder when the helm is amidships. N c. Its velocity is the same as that of the wake. Y d. The propeller gives it a helical motion. 240: The best way to lift many small articles aboard your vessel is with a __________.
Y a. pallet N b. barrel hook N c. spreader N d. snotter 275: You have taken another vessel in tow. You can tell that the towing speed is too fast when the __________.
N a. vessels are not in step N b. tow line feels like it is "jumping" when touched Y c. catenary comes clear of the water N d. towed vessel goes "in irons" 326: In order to back a right-handed, single-screw vessel in a straight line, you will probably need to use __________.
N a. very little rudder N b. some left rudder Y c. some right rudder N d. full left rudder 332: The helm command "Meet her" means __________.
N a. steer more carefully Y b. use rudder to check the swing N c. decrease the existing rudder angle N d. note the course and steady on that heading 340: Argon is classified as a __________.
N a. corrosive N b. flammable gas N c. flammable liquid Y d. nonflammable gas 409: A tanker is loaded with 5,000 barrels of petroleum. The cargo was loaded at a temperature of 70°F, and the coefficient of expansion is .0004. What is the net amount in barrels of cargo loaded?
N a. 4800 Y b. 4980 N c. 5020 N d. 5200 432: A licensed Master of Towing Vessels may NOT serve as the person in charge of which towing vessel?
N a. 99 GRT towing vessel operating on Chesapeake Bay N b. 199 GRT towing vessel operating in the Gulf of Alaska N c. 480 GRT towboat operating on the Western Rivers Y d. 405 GRT towing vessel operating between Florida and the US Virgin Islands 463: A tow span __________.
N a. prevents the towing hawser from snagging any equipment or gear on deck N b. may be equipped with a greased, free sliding spool to fairlead the towing hawser N c. allows the crew access to the fantail and to move safely on deck aft of the towing bitts or winch Y d. All of the above 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 600: You are on a containership. Which statement about the stowage of hazardous materials in containers is TRUE?
N a. The containers provide automatic segregation of hazardous materials except for class A explosives. N b. All packages within a container must be marked "This End Up" to indicate the correct stowage. Y c. A refrigerated container with a fuel tank containing a flammable liquid must be stowed on deck. N d. Packages of liquids within a container should be stowed on top of packages of solids to prevent crushing. 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 677: In illustration D044DG, the mooring line labeled "D" is called a(n) __________. (DO44DG )
N a. forward spring line Y b. after spring line N c. waist breast line N d. stern line 754: Which method is used to detect rot in manila lines?
N a. Feeling the surface of the line for broken fibers N b. Measuring the reduction in circumference of the line N c. Observing for the appearance of mildew on the outer surface Y d. Opening the strands and examining the inner fibers 781: The trim and stability booklet must be approved by the __________.
N a. International Maritime Organization N b. National Cargo Bureau N c. Society of Naval Architects and Marine Engineers Y d. United States Coast Guard 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 881: The proper way to correct a mistake in the logbook is to __________.
N a. erase the entry and rewrite N b. completely black out the entry and rewrite Y c. draw a line through the entry, rewrite, and initial N d. draw several lines through the entry and rewrite 892: On a shallow water tow, the catenary of the towline should be __________.
N a. large Y b. small N c. eliminated N d. adjusted frequently 893: Considering the manning requirements for U.S. vessels, your three watch cargo vessel has a deck crew of 20 people, exclusive of the officers. How many of these people do the manning regulations require to be Able Seamen?
Y a. 13 N b. 10 N c. 7 N d. 5 926: 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 963: You are the person in charge of a 199-GT uninspected towing vessel engaged in towing from Galveston to Savannah and then returning, a distance in excess of 600 miles. Which statement is FALSE?
N a. The sailors shall be divided into three watches. N b. All deck crew members are to have a Merchant Mariner's Document. N c. Able seamen are required in the deck crew. Y d. The crew members are NOT required to sign articles. 1071: In some cases, the 50% duty on all foreign repairs made to American flag merchant vessels may be remitted. Which work does NOT come under the remitting policy of U.S. Customs?
Y a. Chipping, painting, and scaling by foreign labor N b. Repairs to hull structural damage N c. Repairs due to damage done by heavy weather N d. Repairs to the main propulsion machinery 1209: When cargo is being worked using a Burton or married fall system, which part of the cargo gear is most likely to fail?
N a. Boom N b. Gooseneck Y c. Guy tackle N d. Topping lift 1306: You are making mooring lines fast to bitts, stern to, as in some Mediterranean ports. A swell is liable to make the vessel surge. How should you tie up?
Y a. Use manila or synthetic fiber hawsers only. N b. Use wires only from the stern and each quarter. N c. Use synthetic fiber and/or manila hawsers as required. N d. Use wires from each quarter and manila hawsers from the stern. 1384: The wire rope used for cargo handling on board your vessel has a safe working load of eight tons. It shall be able to withstand a breaking test load of __________.
N a. 32 tons Y b. 40 tons N c. 48 tons N d. 64 tons 1435: Which letter shown represents a clove hitch? (DO30DG )
Y a. X N b. U N c. T N d. R 1444: If kinking results while wire rope is being coiled clockwise, you should __________.
N a. coil it counterclockwise N b. not coil it Y c. take a turn under N d. twist out the kinks under a strain 1530: Shell plating is __________.
N a. the galvanizing on steel N b. a hatch cover Y c. the outer plating of a vessel N d. synonymous with decking 1614: Which bend or knot is used to tie a small line to a larger one?
Y a. Becket bend N b. Bowline N c. Clove hitch N d. Lark's head 1821: While towing, what is the principal danger in attempting to swing a barge on a short hawser in order to slow the barge's speed?
N a. The barge may capsize from the sharp turn. Y b. The barge may swing too quickly and run over the tug. N c. Free surface effect of liquid inside the barge may rupture the barge bulkheads when turning too quickly. N d. Dangerous wakes may result from the swinging barge and capsize the tug. 1839: When relieving the helm, the new helmsman should find it handy to know the __________.
N a. leeway N b. variation in the area Y c. amount of helm carried for a steady course N d. deviation on that heading 1997: What is the name of tackle number 12? (DO29DG )
Y a. Threefold purchase N b. Davit tackle N c. Deck tackle N d. Gin tackle 2059: You are handling a mooring line and are instructed to "Check the line". What should you do?
N a. Ensure the bight is not fouled by taking up slack. N b. Pay out the line smartly and keep it free for running. N c. Secure the line by adding more turns. Y d. Surge the line so it maintains a strain without parting. 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 2155: A case received for shipment has the markings shown. Each carton measures 13" X 15" X 23". What is the total cubic capacity the entire consignment will occupy if you assume 10% broken stowage? (D043DG )
N a. 779 cubic feet (22 cubic meters) Y b. 857 cubic feet (24 cubic meters) N c. 1047 cubic feet (30 cubic meters) N d. 112,125 cubic feet (3173 cubic meters) 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 2261: The machinery associated with heaving in and running out anchor chain is the __________.
N a. winch Y b. windlass N c. draw works N d. dynamic pay out system 2291: Before a Master relieves a Pilot of the conn, the __________.
N a. Master must first request the Pilot to take corrective action N b. Master should agree to sign a release of liability form Y c. Master should foresee any danger to the vessel on the present course N d. vessel must be in extremis 2310: How do you determine the weight of the vessel that is supported by the ground when a vessel has run aground?
N a. This requires extensive calculation and is usually performed only by a naval architect not by a ship's officer. N b. Determine the point where aground and the draft at that point, then calculate it using the grounding formula. Y c. Use the hydrostatic tables and enter with the mean draft before grounding and the mean draft after grounding. N d. Use the inclining experiment formula and substitute the change of trim for the angle of list. 2512: Ultrasonic testing is used to determine the thickness of a vessel's shell plating and to __________.
N a. provide tail shaft clearances Y b. test welds for subsurface defects N c. check the wear of the rudder carrier bearing N d. test the links of the anchor cables while being ranged 2574: You are proceeding down a channel and lose the engine(s). You must use the anchors to stop the ship. Which statement is true?
N a. Pay out all of the cable before setting up on the brake to insure the anchors dig in and hold. N b. For a mud, mud and clay, or sandy bottom pay out a scope of 5 to 7 times the depth before setting up on the brake. Y c. Use one or both anchors with a scope of twice the depth before setting the brake. N d. Drop the anchor to short stay and hold that scope. 2702: How long is the standard container used to measure equivalent units?
N a. 10 feet (3 meters) Y b. 20 feet (6 meters) N c. 35 feet (11 meters) N d. 40 feet (12 meters) 2804: Which publication is NOT carried on board U.S. merchant vessels operating under Naval Control of Shipping?
N a. Allied Control of Shipping Manual - Guide to Masters N b. Communications Supplement Y c. Tactical Control and Routing of Merchant Vessels N d. All of the above are carried on board 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. 2870: A single-screw vessel going ahead tends to turn more rapidly to port because of propeller __________.
N a. discharge current N b. suction current Y c. sidewise force N d. thrust 2928: How should you signal the crane operator to raise the boom and lower the load?
N a. Extend arm with the palm down and hold this position rigidly. N b. Place both fists in front of your body with thumbs pointing toward each other. N c. Clasp hands in front of your body. Y d. Extend arm with the thumb pointing up, and flex the fingers in and out for as long as the load movement is desired. 2946: Which single-letter signal, when used by icebreakers on the Great Lakes, may be made by using the ship's whistle?
N a. E N b. I Y c. M N d. None 3234: Rolling is angular motion of the vessel about what axis?
Y a. Longitudinal N b. Transverse N c. Vertical N d. Centerline 3394: The crown of the anchor shown is indicated by which letter? (D038DG )
N a. K N b. J Y c. H N d. G 3560: What should look-outs report?
N a. Discolored water N b. Shoals N c. Floating objects Y d. All of the above 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 3960: The line with the most stretch is __________.
N a. manila Y b. nylon N c. polypropylene N d. dacron 4131: What is used when securing light vehicles aboard Ro-Ro vessels?
Y a. Buckle or ratchet tensioner N b. Chain N c. Wire N d. Manila rope 4136: A disadvantage of using chain lashing on heavy vehicles aboard Ro-Ro vessels is that it __________.
N a. can wrap around cargo N b. is easily damaged N c. is affected by temperature Y d. does not absorb shock 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