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.
52: Which statement is TRUE concerning inert gas systems on tank vessels?
Y a. Flue gases from the ship's boilers are used in some systems. N b. Helium is the preferred inert gas. N c. Using the system accelerates the rusting of the tanks. N d. All of the above 131: A vessel is floating at a mean draft of 16 feet. At this draft, the displacement is 8,000 tons. The length of the vessel is 475 ft., beam is 55 ft., TPI is 45. Calculate KM. (See P-value, K-value table in the blue pages of the Stability Data Reference Book)
N a. 18.8 feet Y b. 20.9 feet N c. 22.7 feet N d. 32.0 feet 226: How many low-velocity spray applicators are required on the weather decks of a tankship?
N a. One N b. Two N c. Three Y d. Four 346: The supply of carbon dioxide used in the fixed extinguishing system aboard a cargo vessel MUST be at least sufficient for __________.
N a. all the spaces of a vessel N b. all cargo spaces N c. the engine room and largest cargo space Y d. the space requiring the largest amount 502: Penetrations and openings in watertight bulkheads in a small passenger vessel less than 100 gross tons must __________.
N a. be kept as high and as far inboard as possible N b. not contain sluice valves that allow water to flow freely from one watertight compartment to another N c. have some means to make them watertight Y d. All of the above 602: What does "EPIRB" stand for?
N a. Emergency Position Indicating Radar Buoy N b. Electronic Pulse Indicating Radio beacon Y c. Emergency Position Indicating Radio beacon N d. None of the above 800: The "trimming arm" of a vessel is the horizontal distance between the __________.
N a. LCB and LCF N b. LCF and LCG N c. LHA and LCG Y d. LCB and LCG 832: Which statement is TRUE concerning the use of a dry chemical extinguisher?
Y a. You should direct the stream at the base of the fire. N b. You should direct the stream directly into the fire. N c. You should direct the stream at a vertical bulkhead and allow it to flow over the fire. N d. All of the above 840: If a vessel is sagging, what kind of stress is placed on the sheer strake?
Y a. Compression N b. Tension N c. Thrust N d. Racking 947: When fighting an oil or gasoline fire in the bilge, which of the following should NOT be used?
N a. Foam Y b. Solid stream water nozzle N c. All-purpose nozzle N d. Carbon dioxide 1064: By day, the horizontal motion of a white flag, or arms extended horizontally, by a person on the beach indicates __________.
N a. "Haul away" N b. "Tail block is made fast" Y c. "Negative" N d. "Affirmative" 1296: Hand holds or straps on the underside of an inflatable liferaft are provided __________.
Y a. to right the raft if it capsizes N b. to carry the raft around on deck N c. for crewmen to hang on to N d. to hang the raft for drying 1808: Which of the listed functions is the purpose of a gas scrubber in an inert gas generation system?
Y a. Cools the inert gas. N b. Maintains the oxygen content at 5% by volume. N c. Bleeds off static electricity in the inert gas. N d. Maintains flow to the water seal on the gas main. 1905: What fitting on the mast works in conjunction with the shrouds to control side bend of the mast?
N a. Chainplate N b. Hound N c. Crowfoot Y d. Spreader 1940: Life jackets should be stowed in __________.
N a. survival craft N b. messrooms Y c. readily accessible locations N d. locked watertight containers 1950: The lifesaving equipment on all vessels shall be __________.
N a. inspected weekly N b. stowed in locked compartments Y c. readily accessible N d. tested yearly 1989: What is the proper method to fix running rigging to a cleat?
N a. Half-hitches then a round turn N b. One round turn N c. A series of half-hitches Y d. A round turn, figure eights, and a half-hitch 2009: Your vessel measures 114 feet long by 16 feet in beam. If the natural rolling period at a draft of 5'-06" is 6 seconds, what is the GM?
Y a. 1.38 feet N b. 1.53 feet N c. 1.76 feet N d. 1.98 feet 2072: By regulation, cargo tank atmosphere must be inert before and during which operation?
N a. stripping N b. topping off N c. gravitating Y d. All of the above 2113: The SS AMERICAN MARINER is ready to load the cargo listed. There is already 2865 tons of cargo on board with a KG of 27.8 feet. Use the white pages of the Stability Data Reference Book to determine the final KG of all the cargo after loading is completed. ST-0050
N a. KG 26.2 feet N b. KG 27.4 feet Y c. KG 28.5 feet N d. KG 29.5 feet 2128: Your drafts are: FWD 5'-08", AFT 6'-04". From past experience, you know that the vessel will increase her draft 1 inch for every 7 tons loaded. There is rig water on board and 10 tons of deck cargo. How many more tons of cargo can be loaded and still maintain the same trim? (D037DG )
N a. 14.8 tons N b. 18.0 tons Y c. 25.0 tons N d. 32.0 tons 2295: All MODU personnel should be familiar with the survival craft's __________.
Y a. boarding and operating procedures N b. maintenance schedule N c. navigational systems N d. fuel consumption rates 2296: Regulations require that cargo pumps in tank vessels carrying grade D liquid cargo shall be isolated from sources of vapor ignition by __________.
N a. cofferdams Y b. gastight bulkheads N c. passageways or living quarters N d. general cargo spaces 2384: Use the material in Section 1, the blue pages, of the Stability Data Reference Book. If the KG is 24.2 feet, and the drafts are: FWD 23'-04", AFT 24'-05"; at what angle will the vessel lose positive stability?
N a. 67° N b. 71° Y c. 75° N d. 79° 2537: Which statement(s) is(are) TRUE regarding heaving-to?
N a. A sloop will heave to with her jib and mainsail aback. N b. A ketch will heave to with her jib and mizzen aback. Y c. A yawl will heave to with her jib aback, main sheet eased, and her mizzen sheeted in. N d. All of the above are correct. 2577: The radiotelephone safety signal is __________.
Y a. "Securite" repeated 3 times N b. "Safety" repeated 3 times N c. "Pan Pan" repeated 3 times N d. "Securite Securite" repeated 3 times 2658: As a vessel changes course to starboard, the compass card in a magnetic compass __________.
N a. first turns to starboard then counterclockwise to port N b. also turns to starboard N c. turns counterclockwise to port Y d. remains aligned with compass north 2676: A safe fuel system must __________.
N a. prevent engine overheating N b. have proper air/gasoline fuel mixture ratio Y c. be liquid- and vapor-tight N d. supply sufficient air to the intake manifold 2736: Your vessel's drafts are: FWD 22'-04", AFT 23'-06"; and the KG is 22.4 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the righting arm at 19° inclination if the center of gravity is 1.3 feet off center.
Y a. 0.2 foot N b. 0.8 foot N c. 1.4 feet N d. 2.2 feet 2771: The angle to which a floating MODU, with a negative initial metacentric height, lies while at rest in still water is the angle of __________.
N a. trim N b. yaw N c. heel Y d. loll 2829: Aboard small passenger vessels the steering gear, signaling whistle, controls, and communication system shall be tested by the Master __________.
N a. once a week Y b. before getting underway for the day's operation N c. at every inspection and reinspection N d. at least once in every 48 hours 3093: You are preparing to load fuel oil on a vessel of 150 gross tons constructed after June 30, 1974. Before loading, you must check that the fuel oil tank vents __________.
N a. are not obstructed by on-deck cargo N b. have a fire extinguisher within the immediate area Y c. have containment capacity for at least 5 gallons N d. are opened and the flame screen replaced 3170: What would be an example of a B-I extinguisher? (small passenger vessel regulations)
N a. 2.5 gallon foam N b. 10 pound carbon dioxide Y c. 2 pound dry chemical N d. 5 pound foam 3457: Using a sea anchor will __________.
Y a. reduce your drift rate N b. keep the liferaft from turning over N c. aid in recovering the liferaft N d. increase your visibility 3482: The SS AMERICAN MARINER has the liquid loading shown. Use the white pages of The Stability Data Reference Book to determine the KG of the liquid load. ST-0133
N a. 5.1 feet Y b. 4.9 feet N c. 2.9 feet N d. 2.5 feet 3588: For the purpose of training and drills, if reasonable and practicable, rescue boats on an OSV must be launched with their assigned crew __________.
N a. once a week Y b. once a month N c. once a year N d. twice a year 3673: The DEEP DRILLER, while loaded as shown in the Sample Load Form #4 (Drilling), suffers damage to the port center column below the waterline. Pumping from tanks 2P and 9P is not sufficient to prevent increasing port list. You should consider counterflooding in tank __________.
N a. 2S N b. 9S Y c. C2BS N d. C2BP 3677: The DEEP DRILLER, while loaded as shown in the Sample Load Form #4 (Drilling), suffers damage to the starboard aft column below the waterline. Pumping from tanks 8S and 9S is not sufficient to prevent increasing starboard list and stern down trim. You should consider counterflooding in tank __________.
N a. 1S Y b. 1P N c. C2BP N d. 10P 3797: What are the longitudinal moments for the contents of P-tank #1 of the DEEP DRILLER if the ullage is 2.3 feet?
Y a. -3,096 ft-tons N b. -3,880 ft-tons N c. -4,663 ft-tons N d. -6,509 ft-tons 3897: What is the maximum length of time that distress flares are approved for?
N a. 1 and 1/2 years N b. 2 years Y c. 3 and 1/2 years N d. 5 years 3909: Which statement is TRUE concerning the testing of the line-throwing appliance?
N a. It shall be fired at least once in every three months. Y b. A drill in its use shall be held once in every 3 months. N c. Drills shall be held quarterly and it shall be fired annually. N d. No drills are required. 3955: The person-in-charge shall insure that each rescue boat on an OSV is lowered to the water, launched and operated at least once every __________.
N a. week N b. two months Y c. three months N d. six months 4092: On which route is a towing vessel over 39.4 feet in length NOT required to carry an echo-sounding device?
N a. Great Lakes N b. Inland Waters, other than the Western Rivers Y c. Western Rivers N d. Coastwise Routes 4274: Your vessel is greater than 100 GRT and carries more than 12 passengers. In addition to the licensed deck officer in the pilothouse, there should be on watch an additional crew member __________.
N a. always in the pilothouse N b. on lookout on the bow Y c. in or near the pilothouse N d. only when visibilty is restricted 4611: On the COASTAL DRILLER, the level of water in each of two pump bilge pits is monitored by __________.
N a. visual sight gages N b. low and high level alarms Y c. hydrostatic alarm switches N d. OSS units (overflow sequence selector units) 4663: The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). If the contents of the #7 drill water tank are discharged, what would be the new TCG?
N a. -0.15 foot N b. 0.00 foot Y c. 0.15 foot N d. 0.29 foot 5203: Among the possible causes of unexpected rapid increasing inclination of the floating COASTAL DRILLER is __________.
N a. consumption of on board liquids N b. miscalculation of loads N c. external environmental forces Y d. flooding due to hull damage 5297: Among the possible causes of unexpected rapidly increasing inclination of the DEEP DRILLER while in transit is __________.
N a. consumption of on board variables N b. miscalculation of loads N c. external environmental forces Y d. flooding due to lower-hull damage 5537: Why should you soak an anchor?
Y a. It can prevent the anchor from slipping during pretensioning. N b. It will lubricate all the moving parts of a stock anchor. N c. It will increase the maximum breaking strength of the anchor chain. N d. It will make it easier to disassemble the anchor for repair. 6021: Semi-portable extinguishers used on MODU's are sizes __________.
N a. II, III, and IV N b. I, II, and III Y c. III, IV, and V N d. IV and V 6131: How many fireman's outfits are required on a MODU?
N a. 1 Y b. 2 N c. 3 N d. 4 6525: On the cargo manifest, the total weight of an empty cargo box is the __________.
Y a. tare weight N b. net weight N c. gross weight N d. cargo weight 6711: Immersion suits must be stowed __________.
N a. in the pilothouse N b. on top of lockers Y c. where readily accessible N d. on open deck areas 6721: Each hand portable, semi-portable and fixed fire extinguishing unit on a MODU must be tested and inspected at least once every __________.
N a. six weeks N b. six months Y c. twelve months N d. two years 7593: The horizontal distance between the vertical lines of action of gravity and the buoyant forces is called the __________.
Y a. righting arm N b. metacentric height N c. metacentric radius N d. height of the center of buoyancy 7805: A tank with internal dimensions of 40 feet X 20 feet X 12 feet is pressed with fuel oil weighing 54 pounds per cubic foot. What is the weight, in short tons, of the liquid?
N a. 518.4 short tons Y b. 259.2 short tons N c. 135.0 short tons N d. 11.3 short tons 8635: A weight of 1,000 kips is equivalent to __________.
N a. 1,000 pounds N b. 2,000 short tons N c. 2,240 pounds Y d. 500 short tons 8777: On a MODU, an obvious indicator of lost circulation of drilling fluid is __________.
N a. fluid level in the mud pits increases rapidly Y b. fluid level in the mud pits decreases rapidly N c. increased cuttings on the shale shaker N d. decreased cuttings on the shale shaker 9113: After using a Halon extinguisher, it should be __________.
N a. put back in service if more than 50% of the charge remains N b. repainted N c. discarded Y d. recharged 9431: Subtracting FSCT from KGT yields __________.
N a. BL N b. GMT N c. FSCT Y d. KG