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.
109: Your vessel has a displacement of 10,000 tons. It is 350 feet long and has a beam of 55 feet. You have timed it's full rolling period to be 15.0 seconds. What is your vessel's approximate GM?
N a. 1.18 feet N b. 1.83 feet Y c. 2.60 feet N d. 3.36 feet 166: On cargo vessels, which fire extinguisher is considered semi-portable?
N a. A-II N b. C-II Y c. B-III N d. All of the above 295: The preferred type of pollution control for oil spills on the water is(are) __________.
N a. straw Y b. booms N c. skimmers N d. chemical dispersants 717: If your radiotelephone fails while underway, __________.
N a. you must visually signal oncoming vessels N b. you must immediately tie up in the nearest port until the radiotelephone is repaired N c. you must anchor until the radiotelephone is repaired Y d. the loss of the radiotelephone must be considered in navigating the vessel 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 845: Each pressure gage used in an oil transfer operation must be accurate to within __________.
N a. 1 percent N b. 3 percent N c. 5 percent Y d. 10 percent 921: You can determine that a CO2 fire extinguisher is fully charged by __________.
N a. looking at the gauge N b. checking the nameplate data N c. weighing by hand Y d. weighing on a properly calibrated scale 959: You are on a supply run to an offshore drilling rig. On board is the cargo listed. What is the height above the main deck of the center of gravity of the cargo? ST-0020
N a. 2.32 feet N b. 2.21 feet Y c. 1.97 feet N d. 1.76 feet 1097: Foam extinguishes a fire by __________.
Y a. shutting off the air supply N b. cooling the fuel to below ignition temperature N c. dispersing the fuel N d. removing the source of ignition 1142: While testing a cargo tank, your oxygen indicator reads 25% oxygen in the tank. You would then __________.
N a. enter the tank safely Y b. suspect the accuracy of the reading N c. ventilate the tank N d. test for nitrogen 1208: A vessel aground may have negative GM since the __________.
N a. decrease in KM is equal to the loss of draft N b. virtual rise of G is directly proportional to the remaining draft N c. lost buoyancy method is used to calculate KM, and KB is reduced Y d. displacement lost acts at the point where the ship is aground 1224: In order to retrieve an inflatable liferaft and place it on deck, you should heave on the __________.
N a. lifelines N b. righting strap N c. sea anchor Y d. towing bridle 1311: Which statement about pneumatic chipping tools is TRUE?
Y a. The operator must wear safety goggles or glasses. N b. The equipment must be grounded to prevent shock hazard. N c. The chipping mechanism is made of a non-sparking material that is safe to use near explosive atmospheres. N d. The needles of the needle-type chipping gun must be replaced when they have been blunted more than 1/2 of their diameter. 1336: A feature of an inflatable raft which helps keep people stationary in rough weather is __________.
N a. lashings on the floor of the raft for the passenger's feet N b. straps from the overhead Y c. lifelines on the inside of the raft N d. ridges in the floor of the raft 1337: It is desirable to have screens on the vents of potable water tanks to __________.
N a. filter the incoming air N b. prevent explosions N c. prevent backups Y d. stop insects from entering 1499: A cargo of 60 tons is to be loaded on deck 20 feet from the ship's centerline. The vessel's displacement including the 60 ton cargo will be 6,000 tons and the GM two feet. The list of the vessel after loading this cargo will be __________.
N a. 5.4° Y b. 5.72° N c. 6.12° N d. 6.4° 1515: You see an iceberg that has not been reported. What kind of radio message do you transmit to warn others?
Y a. Safety message N b. Urgency message N c. Distress message N d. Routine message 1725: The most effective treatment for warming a crew member suffering from hypothermia is __________.
N a. running or jumping to increase circulation N b. raising body temperature rapidly by placing hands and feet in hot water Y c. bundling the body in blankets to rewarm gradually N d. laying prone under heat lamps to rewarm rapidly 2133: If a vessel is sagging, which kind of stress is placed on the sheer strake?
Y a. Compression N b. Racking N c. Tension N d. Thrust 2309: Your vessel is preparing to lift a weight of 30 tons with a boom whose head is 30 feet from the ship's centerline. The ship's displacement not including the weight lifted is 8,790 tons. KM is 21.5 ft; KG is 20.5 ft. The angle of list when the weight is lifted will be __________.
N a. 1.4° N b. 2.8° N c. 3.4° Y d. 5.8° 2312: Which statement is TRUE concerning the short exposure tolerance for Benzene?
Y a. 3000 ppm is endurable for 30 - 60 minutes (single exposure) N b. 500 - 1000 ppm for 30 - 60 minutes will produce definite irritation to the trachea N c. 5.5 ppm for 1 minute is practically intolerable N d. No chronic effects noticed after 20,000 ppm exposure for 5 - 10 minutes 2342: Your vessel's drafts are: FWD 13'-11", AFT 11'-09". How much more cargo can be loaded to have the vessel down to the freeboard draft? (Use the information in Section 1, the blue pages, of the Stability Data Reference Book)
Y a. 9069 tons N b. 9172 tons N c. 9207 tons N d. 9244 tons 2378: A vessel's drafts are FWD 23'-01", AFT 24'-11". Use the information in Section 1, the blue pages, of the Stability Data Reference Book to determine the final drafts if: (1) 142 tons are discharged 122 feet forward of amidships; (2) 321 tons are loaded 82 feet forward of amidships; and (3) 74 tons are discharged 62 feet aft of amidships.
N a. FWD 23'-05", AFT 24'-00" N b. FWD 23'-06", AFT 24'-02" N c. FWD 23'-07", AFT 24'-03" Y d. FWD 23'-09", AFT 24'-05" 2379: Regulations require that access to a cargo pumproom in a tank vessel carrying grade D liquid cargo, shall be __________.
N a. away from galleys, living quarters, or navigation spaces N b. only from areas equipped with power ventilation systems Y c. from the open deck N d. isolated from sources of vapor ignition 2515: Before personnel are lifted from a vessel in a personnel basket, the vessel should be ________________________
Y a. directly under the boom N b. moving away from the boom N c. stopped dead in the water N d. tied to the boom 2536: To prevent the spread of fire by conduction you should __________.
N a. shut off all electrical power N b. close all openings to the area Y c. cool the bulkheads around the fire N d. remove combustibles from direct exposure 2570: What is NOT a requirement of the reinspection for a tank barge with a certificate of inspection valid for two years?
Y a. The reinspection will be made between the fourteenth and sixteenth months. N b. The inspector shall examine all accessible parts of the vessels's hull. N c. The inspector shall examine the vessel's machinery as well as equipment. N d. The scope of the reinspection shall be the same as for the inspection for certification, but in less detail. 2575: The "urgent" priority should be used for messages __________.
N a. concerning the Safety of Life at Sea (SOLAS) N b. detailing important navigational warnings Y c. containing information concerning the safety of a mobile unit or person N d. concerning on-scene communications 2652: Which vessel is required to carry an efficient daylight signaling lamp? (Uninspected Vessel Regulations)
N a. 99 GT towing vessel on Inland Waters N b. 199 GT towing vessel on a coastwise voyage N c. 299 GT towing vessel on a coastwise voyage Y d. 199 GT towing vessel on an international voyage 2733: Buoyancy associated with empty or partly empty ballast tanks in the mat of a mat supported jack-up MODU during jacking operations can cause __________.
Y a. capsizing N b. delays N c. progressive flooding N d. negative buoyancy 2758: A vessel is equipped with cross-connected deep tanks. In which situation should the cross-connection valve be closed?
N a. The tanks lie above the waterline and are filled. N b. The tanks are partially filled with dry cargo. Y c. The tanks are partially filled with liquid cargo. N d. The tanks are filled and lie below the waterline. 2841: The distance from the still water level (corrected for tides and storm surge) to the bottom of the hull of a MODU is the __________.
Y a. air gap N b. freeboard N c. penetration N d. water depth 3009: Which type of ventilation is required for enclosed spaces containing gasoline, machinery, or fuel tanks? (small passenger vessel regulations)
Y a. Natural supply and mechanical exhaust N b. Mechanical supply and natural exhaust N c. Mechanical supply and mechanical exhaust N d. Natural supply and natural exhaust 3025: A semisubmersible with a negative GM flops to an angle of __________.
N a. heel N b. trim N c. list Y d. loll 3060: A vessel's drafts are: FWD 19'-00", AFT 17'-02". How much more cargo can be loaded to have the vessel down to the freeboard draft? (Use the information in Section 1, the blue pages, of the Stability Data Reference Book)
N a. 5928 tons N b. 6016 tons Y c. 6149 tons N d. 6242 tons 3454: A passenger vessel of 600 GT is required to have how many fire axes?
Y a. 6 N b. 4 N c. 2 N d. 1 3665: The time required to ballast the DEEP DRILLER to survival draft, when threatened with heavy weather, while under tow, is about __________.
Y a. 2 hours N b. 3 hours N c. 4 hours N d. 5 hours 3981: While loaded as shown in the DEEP DRILLER Sample Load Form #4 (Drilling), all of the liquid mud is dumped. What is the new position of the longitudinal center of buoyancy?
N a. 0.00 feet N b. 1.69 feet N c. 2.25 feet Y d. 2.29 feet 4058: When the owner or Master inspects his/her towing vessel before embarking on a voyage of more than 24 hours, he/she must check all terminal gear EXCEPT ___________ .
N a. the connection of the bridle and towing pendant N b. chafing gear Y c. quick release towing hook and control system, to see that it operates properly N d. the winch brake, if installed 4129: Under normal operating conditions, the rudder is hydraulically locked unless __________.
N a. the manual trick wheel is engaged for steering N b. the variable stroke pump is off stroke Y c. a rudder order is given by the control system N d. an electric power system failure occurs at the steering gear 4170: The color of the signal flares sent up by a submarine surfacing from periscope depth is __________.
N a. yellow N b. red N c. green Y d. white 4234: Which type of fixed fire protection system is approved for use on board uninspected vessels? (Uninspected Vessel Regulations)
N a. Dry chemical Y b. Water mist N c. Chemical foam N d. Steam smothering 4238: You are the operator of a 296 GRT uninspected towing vessel. Its construction was contracted for after August 27, 2003. In addition to the hand portable fire extinguishers, how much other fire extinguishing equipment are you required to have on board? (Uninspected Vessel Regulations)
N a. Either an approved B-V semi-portable fire-extinguishing system or a fixed fire-extinguishing system Y b. Both an approved B-V semi-portable fire-extinguishing system and a fixed fire-extinguishing system N c. An approved water mist fire protection system and a fixed CO2 fire-extinguishing system N d. Both an approved B-V semi-portable fire-extinguishing system and an approved water mist fire protection system 4285: During an ocean tow when the winds are less than 70 knots, the maximum allowable KG for the COASTAL DRILLER is __________.
N a. 38.75 feet N b. 42.00 feet N c. 44.00 feet Y d. 65.00 feet 4461: If you have to jump in the water when abandoning a MODU, your legs should be __________.
N a. spread apart as far as possible N b. held as tightly against your chest as possible N c. in a kneeling position Y d. extended straight down and crossed at the ankles 4511: The height of the transverse metacenter of the Coastal Driller at a displacement of 13,050 kips is __________.
N a. 143.81 feet N b. 144.61 feet Y c. 144.93 feet N d. 145.73 feet 4515: A survival craft being used to pick up a person who has fallen overboard from a MODU should approach the person __________.
N a. at a high rate of speed N b. under oars Y c. against the wind N d. with the wind 4833: To keep injured survivors warm in the water after abandoning a MODU, they should __________.
Y a. be placed in the middle of a small circle formed by the other survivors in the water N b. float on their backs with their arms extended for maximum exposure to the air N c. remove their life preservers and hold on to the uninjured survivors N d. sip seawater at intervals of fifteen minutes 5449: The SS AMERICAN MARINER is ready to bunker with drafts of FWD 17'-06", AFT 20'-04". After all bunkers are on board, soundings indicate the tonnages shown. Use the white pages of The Stability Data Reference Book to determine the free surface correction. ST-0178
N a. 1.05 feet N b. 1.15 feet N c. 1.25 feet Y d. 1.31 feet 6703: The person-in-charge of a mobile offshore drilling unit must be designated by the __________.
N a. Coast Guard N b. Minerals Management Service N c. operator or his agent Y d. owner or his agent 7605: For small angles of inclination, if the KG were equal to the KM, then the vessel would have __________.
N a. positive stability N b. negative stability Y c. neutral stability N d. maximum stability 7613: GM cannot be used as an indicator of stability at all angles of inclination because __________.
Y a. M is not fixed at large angles N b. there is no M at large angles N c. G is not fixed at large angles N d. there is no G at large angles 7677: Reducing free surfaces has the effect of lowering the __________.
N a. uncorrected KG Y b. virtual height of the center of gravity N c. metacenter N d. metacentric height 8763: After deploying the anchor, a permanent chain chaser is __________.
N a. removed from the anchor chain N b. connected to a buoy at the anchor Y c. stripped back to the rig and secured N d. connected to a buoy halfway down the chain 8875: The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). Excessive motion makes it necessary to ballast down to survival draft. It is decided to check the stability at the intermediate draft of 32 feet. If the added ballast has an average VCG of 9.03 feet, and the sum of free surface moments is 56,244 foot-tons, what is the new margin on the maximum allowable KG?
N a. 6.23 feet N b. 5.11 feet N c. 4.86 feet Y d. 4.06 feet 9267: Lifeboat winches on a MODU are required to be inspected and an entry made in the logbook. What should this entry include?
N a. The time required to lower a lifeboat N b. The time required to raise a lifeboat Y c. The date of inspection and condition of the winch N d. All of the above 9282: There is a fire aft aboard your vessel. To help fight the fire, you should put the __________.
N a. wind off either beam N b. stern into the wind and increase speed Y c. bow into the wind and decrease speed N d. stern into the wind and decrease speed 9382: Fire in an engine compartment is best extinguished with carbon dioxide gas (CO2) and by __________.
Y a. completely closing the compartment N b. closing the compartment except for the ventilators N c. leaving the compartment open to the air N d. increasing the air flow to the compartment by blowers 9563: The KG of a vessel is found by dividing the displacement into the __________.
N a. height of the center of gravity of the vessel Y b. sum of the vertical moments of the vessel N c. sum of the free surface moments of the vessel N d. sum of the longitudinal moments of the vessel 9651: In a fixed CO2 fire extinguishing system where pressure from pilot cylinders is used to release the CO2 from the main bank of cylinders, the number of required pilot cylinders shall be at least __________.
Y a. 2 N b. 3 N c. 4 N d. 6