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.
12: The purpose of inert gas systems aboard tank vessels is to __________.
N a. allow sufficient oxygen in the tank to sustain life Y b. prevent outside air from entering the tank N c. provide increase in cargo discharge pressure N d. comply with double hull pollution prevention regulations 141: Which emergency is required to be covered at the required periodic drills on a fishing vessel?
Y a. Recovering an individual from the water N b. Steering casualty N c. Emergency towing N d. Loss of propulsion power 180: Which is TRUE of a "stiff" vessel?
N a. It has a small GM. N b. It pitches heavily. N c. It has an unusually high center of gravity. Y d. Its period of roll is short. 380: You are fighting a fire in a cargo hold on your vessel. Which action is most important concerning the stability of the vessel?
N a. Shutting off electricity to damaged cables Y b. Draining fire-fighting water and pumping it overboard N c. Maneuvering the vessel so the fire is on the lee side N d. Removing burned debris from the cargo hold 520: What is the displacement of a barge which measures 85' x 46' x 13' and is floating in salt water with a draft of ten feet?
Y a. 1117 tons N b. 1452 tons N c. 500 tons N d. 17.5 tons 598: A fire must be ventilated __________.
N a. when using an indirect attack on the fire such as flooding with water Y b. to prevent the gases of combustion from surrounding the firefighters N c. to minimize heat buildup in adjacent compartments N d. if compressed gas cylinders are stowed in the compartment on fire 724: Messages concerning weather conditions transmitted by radiotelephone are preceded by __________.
N a. MAYDAY N b. PAN-PAN Y c. SECURITE N d. SOS 774: If you send a flag hoist of MAJ 8, what information are you conveying?
N a. The least depth of water in the channel is 8 meters. N b. Derelict dangerous to navigation to the north. N c. Navigation is closed. You should navigate with caution. Y d. I have a male age 8 years. 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 898: A galley grease fire would be classified as which class of fire?
N a. A Y b. B N c. C N d. D 928: A fire in the radio transmitter would be of what class?
N a. A N b. B Y c. C N d. D 995: If you receive a message "A243" by any method of signaling, it would be referring to __________.
Y a. bearing N b. altitude N c. diving N d. speed 1010: Which action will best increase the transverse stability of a merchant vessel at sea?
Y a. Ballasting the double bottom tanks N b. Deballasting the deep tanks N c. Positioning a heavy lift cargo on the main deck N d. Raising the cargo booms to the upright position 1054: By day, the signal meaning, "This is the best place to land" is a __________.
N a. vertical motion of a red flag Y b. vertical motion of a white flag or the arms N c. white smoke signal N d. white star rocket 1076: The life jackets on all vessels shall be __________.
N a. inspected weekly N b. worn at all times Y c. readily available N d. tested yearly 1102: While using a combustible gas indicator, if the hydrocarbon content of the atmosphere exceeds the U.E.L., the needle of the indicator will __________.
N a. remain at zero without moving N b. move to the maximum reading and stay there N c. move halfway up the scale Y d. move to the maximum reading and immediately return to zero 1152: Hand tillers are only accepted as an auxiliary means of steering if __________.
N a. they are at least 6 feet long N b. they are not operated through a reduction gear Y c. they are found satisfactory by the cognizant OCMI N d. Both A and C above 1307: Firefighting foam is only effective when the foam __________.
N a. penetrates to the bottom of the fire N b. is kept saturated with low-velocity water fog N c. mixes with the burning fuel oil Y d. completely covers the top of the burning liquid 1341: Persons who have swallowed a non-petroleum based poison are given large quantities of warm soapy water or warm salt water to __________.
Y a. induce vomiting N b. absorb the poison from the blood N c. neutralize the poison in the blood N d. increase the digestive process and eliminate the poison 1373: You are reading draft marks on a vessel. The water level is halfway between the bottom of the number 5 and the top of the number 5. What is the draft of the vessel?
N a. 4'-09" N b. 5'-09" Y c. 5'-03" N d. 5'-06" 1551: On inspected cargo vessels, each fire station is required to be fitted with a hose which has a nominal diameter of __________.
Y a. 1-1/2 or 2-1/2 inches N b. 2 or 3 inches N c. 2-1/2 or 3-1/2 inches N d. 3 or 4 inches 1664: The number of fire extinguishers required on an uninspected "motor vessel" is based on the vessel's __________.
N a. length Y b. gross tonnage N c. draft N d. crew list 1774: You are preparing to contain an oil spill. You must first receive approval from the Federal On-Scene Coordinator (OSC) prior to __________.
N a. employing a boom N b. using suction equipment Y c. applying chemical agents N d. deploying skimmers 2238: Which system has the least effective radius of operation?
N a. HF SITOR N b. MF NBDP Y c. VHF DSC N d. NAVTEX 2395: A negative metacentric height __________.
Y a. should always be immediately corrected N b. will always cause a vessel to capsize N c. always results from off-center weights N d. All of the above are correct 2461: A special device that, when fitted into the rotary table, transmits torque to the kelly and simultaneously permits vertical movement of the kelly to make the hole is called a __________.
N a. master bushing N b. kelly slips Y c. kelly bushing N d. rotary bushing 2665: You are in the North Sea, which is a special area listed in ANNEX V of MARPOL. How many miles from land must you be to throw broken plywood dunnage over the side?
N a. 6 nm N b. 12 nm N c. 25 nm Y d. Must be retained aboard 2682: The purpose of fuses in electric wiring is to __________.
N a. allow for cutting out branch circuits Y b. prevent overloading the circuits N c. reduce voltage to the branch circuits N d. permit the use of smaller wiring for lighting circuits 2805: A vessel heading NNW is on a course of __________.
N a. 274.5° N b. 292.0° N c. 315.5° Y d. 337.5° 2911: In the event of a fire, the doors to a stair tower must be closed to prevent the spread of fire by __________.
N a. ventilation Y b. convection N c. radiation N d. conduction 2936: A vessel's drafts are: FWD 16'-03", AFT 16'-09"; and the KG is 21.3 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the angle of list if the center of gravity is shifted 2 feet off the centerline.
N a. 12° N b. 14° Y c. 20° N d. 22° 3007: A floating MODU with an initial negative metacentric height __________.
N a. will capsize N b. will incline further Y c. may lie at an angle of loll N d. may be initially level 3071: The free surface effects of a partially-full tank in a floating MODU increase with the __________.
Y a. surface area of the fluid in the tank N b. displacement volume of the MODU N c. draft of the MODU N d. height of the tank above the keel 3218: Assuming that the recommended hatch loading sequence is followed, how many long tons of iron ore may be loaded through hatch No. 3 while using a single belt loader to arrive at a desired mean keel draft of 27'-07"? (Use the Guidance Manual for Loading M.V. GRAND HAVEN.)
Y a. 2500 tons N b. 2550 tons N c. 2600 tons N d. 2650 tons 3282: What form of venting of cargo tanks is allowed for a tank barge certificated to carry grade B petroleum products?
N a. Gooseneck vents only N b. Gooseneck vents with flame screens Y c. Individual pressure-vacuum relief valves with flame screens N d. Straight vents with flame screens 3353: An inflatable liferaft can be launched by __________.
N a. the float free method only N b. kicking the hydrostatic release Y c. throwing the entire container overboard, then pulling on the operating cord to inflate the raft N d. removing the securing straps 3539: Using the Guidance Manual for Loading the M.V. Grand Haven, determine the amount of ballast required in tank No. 5 (P & S) to maintain drafts of 17'-00" forward and 22'-06" aft for a vessel loaded with grain which has a test weight of 33 lbs.
N a. 1010 tons each N b. 1025 tons each N c. 1050 tons each Y d. 1070 tons each 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 3713: The DEEP DRILLER is loaded as shown in the Sample Load Form #5 (Survival) when an unexpected slowly increasing starboard list and bow down trim occurs. A leak in 1S is found. By deballasting from ballast tanks 2S and 3S, the inclination slowly decreases. The increase in the transverse free surface corrections is __________.
N a. 1.25 feet N b. 0.90 foot N c. 0.84 foot Y d. 0.22 foot 3800: If you have to jump in the water when abandoning ship, 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 3821: What is the change in transverse moments for the DEEP DRILLER if 103.48 long tons of ballast is discharged from a full ballast tank 1P?
N a. 10,944 foot-tons decrease Y b. 7,761 foot-tons increase N c. 1,797 foot-tons increase N d. 155 foot-tons decrease 3824: After abandoning a vessel, water consumed within the first 24 hours __________.
Y a. will pass through the body with very little being absorbed by the system N b. will help prevent fatigue N c. will quench thirst for only two hours N d. help prevent seasickness 3875: The breaking strength of the service lines of the rockets used with an impulse-projected, rocket type line throwing appliances is __________.
N a. 300 lbs Y b. 500 lbs N c. 1000 lbs N d. 1500 lbs 3964: Paints and solvents on a vessel should be __________.
N a. stored safely in a cool dark non-ventilated area until work is completed Y b. resealed and returned to a well ventilated area after each use N c. covered at all times to protect from ignition sources N d. stored in a suitable gear locker 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 4687: What is the decrease in vertical moments for the Coastal Driller if 2.5 feet of drill water is discharged from a full drill water tank #23?
N a. 3,464 ft-kips N b. 2,982 ft-kips Y c. 482 ft-kips N d. 161 ft-kips 5098: The SS AMERICAN MARINER is ready to bunker with drafts of FWD 20'-04", AFT 23'-06". 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-0172
N a. 0.62 foot Y b. 0.80 foot N c. 0.85 foot N d. 0.99 foot 5357: During preloading or elevating the COASTAL DRILLER, jacking-up may continue if the total weight is less than __________.
N a. 21,497 kips N b. 21,297 kips N c. 17,700 kips Y d. 14,400 kips 5667: When clear ice is present when the DEEP DRILLER is in transit, the vertical moments are increased by __________.
N a. 40,402 ft-long tons N b. 42,255 ft-long tons N c. 45,593 ft-long tons Y d. 49,280 ft-long tons 5855: A mat-type drilling unit tows more slowly than a jack-up unit due to __________.
Y a. the drag of the mat N b. its deeper draft N c. its tubular legs N d. the design of the bow 6201: The two courses of action if the underwater hull of a MODU is severely damaged are to plug the openings and to __________.
N a. dewater the compartment Y b. establish and maintain flooding boundaries N c. secure power to the compartment N d. counter flood to maintain even keel 6577: According to the regulations for mobile offshore drilling units, "industrial personnel" are considered to be all persons carried on the MODU for the sole purpose of carrying out the industrial business of the unit, except for __________.
N a. the operator's representative Y b. the crew required by the Certificate of Inspection N c. the galley personnel N d. the designated person in charge 6593: What organization is approved by the Coast Guard for certifying cranes on mobile offshore drilling units?
N a. Minerals Management Service N b. International Maritime Organization Y c. American Bureau of Shipping N d. Lloyd's of London 6663: A branch line valve of a fire extinguishing system on a MODU must be marked with the __________.
N a. maximum pressure allowed at that branch Y b. name of the space or spaces which it serves N c. date of the last maintenance inspection N d. pressure needed to maintain an effective stream at that point 7681: The effects of free surface on initial stability depend upon the dimensions of the surface of the free liquids and the __________.
N a. volume of liquid in the tank Y b. volume of displacement of the MODU N c. location of the tank in the MODU N d. height of the center of gravity of the MODU 8437: A MODU required to carry an Oil Record Book must maintain the book on board for __________.
N a. one year N b. two years Y c. three years N d. four years 8643: The analysis of damaged stability for the DEEP DRILLER, disregards the beneficial effects of countermeasures and __________.
N a. horizontal area of the platform N b. vertical area of the platform N c. wind strength Y d. mooring system 8701: The DEEP DRILLER is loaded as shown in Sample Load Form #4 (Drilling). While the unit is deballasting, starboard valve 19 fails in the closed position. You may deballast from tank 9S by pumping from tank 8S by opening valves 20 and __________.
N a. 35 N b. 21 Y c. 18 N d. 17 9611: A crew member reports that the high-pressure alarm light of a low-pressure CO2 fixed fire extinguishing system is illuminated. The most probable cause of this condition would be that __________.
N a. an air leak has developed in the tank Y b. the tank cooling system has malfunctioned N c. the pilot cylinder discharge valve is leaking N d. an excessive amount of insulation has been installed on the tank and piping 9701: Which of the following statements is/are TRUE in regard to Ro-Ro vessels' spaces that are "specially suitable for vehicles"?
Y a. The spaces shall be fitted with an approved fire or smoke detecting system. N b. The spaces shall have designated smoking areas. N c. The spaces are prohibited from being fitted with fixed CO2 fire extinguishing systems. N d. All of the above