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.
81: Your 199 GT tugboat is on a 675 mile coastwise voyage. What percentage of the deck crew must be Able Bodied Seamen?
N a. 0% N b. 25% N c. 50% Y d. 65% 142: What is NOT an advantage of centrifugal pumps over reciprocating pumps?
N a. They pump more cargo in less time. N b. They are smaller for equivalent pumping ability. N c. They are less expensive. Y d. They require priming for stripping. 186: The pivoting point of a vessel going ahead is __________.
N a. at the hawsepipe Y b. about one-third of the vessel's length from the bow N c. about two-thirds of the vessel's length from the bow N d. near the stern 197: Serving is __________.
N a. marline or ratline wound along the grooves of a rope N b. narrow strips of light canvas or cotton cloth spiral-wrapped along the rope Y c. marline tightly wound on the rope by means of a board or mallet N d. a splice made by laying the strand of one rope into the vacated grooves of another rope 236: As the propeller turns, voids are formed on the trailing and leading edges of the propeller blades causing a loss of propulsive efficiency, pitting of the blades, and vibration. These voids are known as __________.
N a. advance Y b. cavitation N c. edging N d. slip 239: Flame screens are used to __________.
N a. contain flammable fumes N b. protect firefighters from flames Y c. prevent flames from entering tanks N d. keep flames and sparks from getting out of an engine's exhaust system 303: What requires a Report of Marine Accident, Injury or Death?
N a. Collision with a bridge N b. Injury beyond first aid N c. loss of life Y d. All of the above 303: What requires a Report of Marine Accident, Injury or Death?
N a. Collision with a bridge N b. Injury beyond first aid N c. loss of life Y d. All of the above 329: Litmus paste is used in order to determine __________.
N a. innage Y b. thievage N c. ullage N d. the tank's datum point 474: On an anchor windlass, the wheel over which the anchor chain passes is called a __________.
N a. brake compressor wheel N b. devil's claw Y c. wildcat N d. winchhead 488: Which data can NOT be found on a moisture equilibrium chart?
N a. Dry bulb temperature N b. Moisture content N c. Vapor pressure Y d. Wet bulb temperature 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 588: Because of the arrangement of the cell guides, the MOST important factor while loading containers is the __________.
N a. contents of the container Y b. list of the vessel N c. size of the shoreside crane N d. weight of the container 688: Who would normally certify that all preparations have been made and all regulations observed prior to loading a cargo of bulk grain?
N a. American Bureau of Shipping N b. U.S. Coast Guard Y c. National Cargo Bureau N d. Master of the vessel 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 855: Which party must ensure that legal work hour limitations (for both officers and crew members), rest periods and regulations governing work on Sundays and holidays are followed when the vessel is in a safe harbor?
N a. The owner of the vessel N b. The company operating the vessel Y c. The Master of the vessel N d. The company chartering the vessel 880: The projecting lugs of the rudderpost which furnish support to the rudder are called __________.
N a. bases Y b. gudgeons N c. pintles N d. rudder lugs 948: Twenty-five hundred (2500) tons of iron ore with a stowage factor of 17 is stowed in a cargo hold. The dimensions of the hold are 55 feet long and 45 feet wide and 35 feet high. What is the height of the center of gravity of the ore above the bottom of the hold?
N a. 7.8 feet Y b. 8.6 feet N c. 17.1 feet N d. 34.6 feet 1018: Which U.S. Government agency can suspend or revoke a Merchant Mariner's license for violating the load line act?
N a. American Bureau of Shipping Y b. U.S. Coast Guard N c. U.S. Customs Service N d. U.S. Maritime Administration 1019: A tank holds 400 tons of sea water when filled. How many tons of liquid of specific gravity 0.9300 will it hold when filled to 90% capacity?
Y a. 326.6 N b. 343.2 N c. 377.6 N d. 390.2 1088: As Master or person in charge, you must notify the U.S. Coast Guard if an injury leaves a crewman unfit to perform routine duties for more than __________.
N a. 24 hours N b. 48 hours N c. 72 hours Y d. Any amount of time 1150: In ship construction, frame spacing is __________.
N a. greater at the bow and stern Y b. reduced at the bow and stern N c. uniform over the length of the vessel N d. uniform over the length of the vessel, with the exception of the machinery spaces, where it is reduced due to increased stresses 1164: Which type of line floats?
N a. Dacron N b. Nylon N c. Old manila Y d. Polypropylene 1173: You are making a sharp turn in a channel and using a buoy four points on the bow to gauge your rate of turn. If you observe the buoy moving forward relative to you, what should you do?
N a. Increase the rate of turn Y b. Decrease the rate of turn N c. Maintain a constant rate of turn N d. Increase speed 1310: Which statement is TRUE concerning protection of double bottom tanks against excessive pressure?
N a. Each vent for the tank must be equal to the area of the tank filling line. N b. The tanks must be protected by overflows. Y c. The total area of the vents or the overflow shall be at least 125% of the area of the fill line. N d. There must be twice as much vent area as the area of the fill line. 1320: A cofferdam is __________.
N a. any deck below the main deck and above the lowest deck N b. a member that gives fore-and-aft strength Y c. made by placing two bulkheads a few feet apart N d. a heavy fore-and-aft beam under the deck 1360: What are reef points used for?
Y a. Reduce the area of a sail N b. Keep the sail taut in light airs N c. Reduce the draft if the boat runs aground N d. Increase the strength of the mast 1458: The catenary in a towline is __________.
N a. a short bridle Y b. the downward curvature of the hawser N c. another name for a pelican hook N d. used to hold it amidships 1475: As shown, the mooring line labeled "G" is called a(n) __________. (DO44DG )
N a. forward spring line N b. offshore bow line N c. forward breast line Y d. inshore bow line 1492: Which of the pictures in illustration DO30DG represents a fisherman's bend? (DO30DG )
N a. F Y b. G N c. K N d. L 1534: Which statement(s) is(are) TRUE concerning wire rope?
Y a. Wire rope should be condemned if the outside wires are worn to one-half their original diameter. N b. Wire rope should be condemned if the fiber core appears moist. N c. Wire rope which is right-hand laid should be coiled counterclockwise to prevent kinking. N d. All of the above 1551: A majority of the crew requests a survey from the American Consul to determine a vessel's seaworthiness. The vessel is found unfit to continue her intended voyage. The Consul allows the vessel to sail to another port where deficiencies can be corrected. The crew must __________.
N a. be discharged and given first class passage back to the original port of signing on in lieu of one month's wages N b. be discharged by the American Consul with additional one month's wages until repairs are made N c. be furnished employment on another vessel returning to the United States which is satisfactory to that crew Y d. comply with the judgment 1605: The pivoting point of a vessel going ahead is __________.
N a. near the stern N b. about two-thirds of the vessel's length from the bow N c. at the hawsepipe Y d. about one-third of the vessel's length from the bow 1616: In moderate wind and current what should be the length of chain with a single anchor?
Y a. 5 times the depth of the water in good holding ground N b. 10 times the depth of the water in shallow water N c. 2 times the depth of the water in poor holding ground N d. 8 times the depth of the water in deep water 1619: A periodic thorough examination of the cargo gear proves satisfactory. What percentage of the total gear must be dismantled to determine actual internal condition?
Y a. None N b. 10% N c. 25% N d. 100% 1659: The safe working load for the assembled cargo gear and the minimum angle to the horizontal for which the gear is designed shall be marked on the __________.
N a. deck N b. head of the boom Y c. heel of the boom N d. mast or king post 1661: Which document is NOT required by law to be posted aboard a vessel?
N a. Certificate of Inspection Y b. Official Crew List N c. Officer's licenses N d. Muster list 1678: Grade D combustible liquids have a maximum flash point of __________.
N a. 109°F N b. 100°F Y c. 149°F N d. 80°F 1843: The sheave diameter to be used with a 3-inch manila rope is __________.
N a. 3 inches Y b. 6 inches N c. 9 inches N d. 12 inches 1914: You need to make a fixed loop at the end of a line in order to use the line as a mooring line. You have insufficient time to make a splice. Which knot should you use?
N a. Clove Hitch N b. Fisherman's Bend Y c. Bowline N d. Round-turn and two half hitches 2000: The vessel has broken down and you are going to take her in tow. The wind is on her starboard beam. Both vessels are making the same amount of leeway. Where should you position your vessel when you start running lines? (D025DG )
N a. A N b. B Y c. C N d. D 2001: You are using tackle number 9 in illustration DO29DG to lift a weight of 120 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 )
N a. 52 lbs. Y b. 39 lbs. N c. 30 lbs. N d. 27 lbs. 2008: When towing another vessel, the length of the towing line should be __________.
N a. as long as possible N b. as short as possible under the circumstances and not over two wave lengths N c. such that one vessel will be on a crest while the other is in a trough Y d. such that the vessels will be in step 2102: A seaman deserts the vessel in a foreign port. What should the Master do with any of the deserter's personal effects remaining on board?
N a. Sell them at auction and deposit the money in the ship's morale or welfare fund. N b. Donate them to a local charity upon return to the United States. Y c. Transfer them to the appropriate district court of the U.S. at the end of the voyage. N d. Inventory them, make an appropriate entry in the Official Logbook and dispose of them at sea. 2131: If you carry packaged hazardous cargoes on a break bulk vessel bound foreign, you must __________.
N a. stow the hazardous cargoes on deck available for jettisoning if necessary N b. remove the hazardous cargo labels from a portable tank after the tank is emptied Y c. have the shipping papers indicate the proper shipping name and the technical name of n.o.s. cargoes N d. log the receipt of hazardous cargoes in the Official Logbook 2168: What is the name of tackle number 6? (DO29DG )
N a. Triple purchase N b. Clew garnet tackle N c. Boat falls Y d. Threefold purchase 2211: What is the mechanical advantage, neglecting friction, of tackle number 5? (DO29DG )
N a. 2 N b. 4 Y c. 5 N d. 5.5 2233: The knot lettered N as shown is a __________. (DO30DG )
N a. timber hitch N b. rolling bowline Y c. stopper N d. heaving line hitch 2385: You are on a multiple-product chemical tanker and will carry cargoes of butyric acid, propylene oxide, and octyl alcohol. Which statement is true?
N a. Butyric acid is incompatible with octyl alcohol but not propylene oxide. Y b. Propylene oxide may not be stowed in a tank adjacent to butyric acid. N c. All of these cargoes are compatible. N d. Octyl alcohol is incompatible with both butyric acid and propylene oxide. 2480: A Danforth lightweight anchor does NOT hold well in which type of bottom?
N a. Mud Y b. Grass N c. Sand N d. Clay 2709: A vessel which is being assisted by an icebreaker should indicate that she is ready to cast off the towline by __________.
Y a. displaying code letter "Y" (Yankee) N b. sounding five short blasts on his whistle N c. displaying code numeral "5" N d. sounding one prolonged blast on his whistle 2722: "Limber" is a term associated with __________.
N a. emergency gear Y b. drainage N c. deck cargo storage N d. securing gear 2772: The Coordinator Surface Search (CSS) in a SAR situation should display by night __________.
N a. deck lights forward and aft N b. a white light over two red lights N c. a red light, white light, and blue light in a vertical line Y d. a distinctive signal promulgated by the CSS 2819: On which of the Great Lakes would shore ice be the most pronounced?
N a. Lake Michigan Y b. Lake Superior N c. Lake Huron N d. Lake Erie 2868: Which vessel, if navigating independently in ice, is more likely to become beset due to inadequate horsepower?
N a. A 254 ft. "Whaleback" tanker with 1800 H.P. N b. A 309 ft. cement carrier with 2000 H.P. N c. A 385 ft. shallow draft tanker with 2400 H.P. Y d. A 630 ft. bulk ore carrier with 3500 H.P. 3260: When underway with a tow, you must notify the Coast Guard of which casualty?
N a. Damage to property amounting to $1,500 N b. Loss of bridge-to-bridge radio capability N c. An injury requiring first aid Y d. Loss of main propulsion 3694: Your enrolled vessel is bound from Baltimore, MD, to Norfolk, VA, via Chesapeake Bay. Which statement about the required pilot is TRUE?
N a. The pilot must be licensed by Virginia or Maryland. N b. The Pilot must be licensed by either Virginia or Maryland. N c. The Pilot must be licensed by Virginia, Maryland and the Coast Guard. Y d. The Pilot need only by licensed by the Coast Guard. 4129: Which lashing materials would be used in securing light vehicles aboard Ro-Ro vessels?
N a. Chain lever or turnbuckle Y b. Webbing N c. Chain N d. None of the above 4202: Which of the following statements is/are TRUE concerning cranes being installed on the centerline of vessels?
N a. One crane is able to work both sides of the ship. N b. One crane is able to work one end of two adjacent hatches. N c. They are more economical and weigh less. Y d. All of the above 4265: Which statement(s) is/are FALSE concerning crane cargo operations?
N a. Lifting points on all equipment must be safely checked prior to commencing a lift. Y b. Cargo loaded into vehicles and/or containers prior to lifting need not be secured. N c. Never exceed crane manufacturer’s limits concerning the safe working loads of cargo jibs. N d. All the above