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.
100: When a vessel has positive stability, the distance between the line of force through B and the line of force through G is called the __________.
N a. metacentric height Y b. righting arm N c. righting moment N d. metacentric radius 204: When signaling by flashing light, a correctly received repetition of a signal is acknowledged by the signal __________.
N a. T N b. E Y c. OK N d. AR 244: A vessel is flying the signal "BJ-1" from her starboard halyard. The signal means "_____."
N a. an aircraft is ditched in position indicated N b. the aircraft is still afloat N c. there is no danger of explosion Y d. an aircraft is circling over an accident 259: What does NOT affect the value of the free surface correction?
N a. Width of the tank N b. Length of the tank Y c. Registered tonnage N d. Specific gravity of the liquid in the tank 262: Which fire detection system is actuated by sensing a heat rise in a compartment?
N a. Manual fire detection system Y b. Automatic fire detection system N c. Smoke detection system N d. Watchman's supervisory system 339: If a firefighting situation calls for low-velocity fog you would __________.
N a. order the engine room to reduce pressure on the fire pump N b. put the lever on an all-purpose fire nozzle all the way forward Y c. attach a low-velocity fog applicator with the nozzle shut down N d. put the lever on an all-purpose fire nozzle all the way back 386: On vessels subject to 46 CFR Subchapter T, Certification Expiration Date Stickers __________.
N a. are issued along with a valid Certificate of Inspection (COI) to indicate the date the COI expires N b. must be readily visible to each passenger prior to boarding and to patrolling Coast Guard law enforcement personnel N c. must be placed on glass or other smooth surfaces where they may be removed without damage to the vessel Y d. All of the above 386: On vessels subject to 46 CFR Subchapter T, Certification Expiration Date Stickers __________.
N a. are issued along with a valid Certificate of Inspection (COI) to indicate the date the COI expires N b. must be readily visible to each passenger prior to boarding and to patrolling Coast Guard law enforcement personnel N c. must be placed on glass or other smooth surfaces where they may be removed without damage to the vessel Y d. All of the above 427: Radio station logs involving communications during a disaster shall be kept by the station licensee for at least __________.
N a. 4 years from date of entry Y b. 3 years from date of entry N c. 2 years from date of entry N d. 1 year from date of entry 569: A shaft alley divides a vessel's cargo hold into two tanks, each 25 ft. wide by 50 ft. long. Each tank is filled with salt water below the level of the shaft alley. The vessel's displacement is 6,000 tons. What is the reduction in GM due to free surface effect?
N a. .56 foot N b. .58 foot Y c. .62 foot N d. .66 foot 634: You are fighting a fire in a watertight compartment using hoses and salt water. Stability may be reduced because of __________.
N a. progressive downflooding N b. reduction of water in the storage tanks Y c. increase in free surface which reduces the metacentric height N d. reduction of KG to the minimum allowable 794: An oiler was badly burned and you are communicating with a passenger ship that has a doctor and hospital on board. You want to rendezvous in a certain position so the oiler can be evacuated for medical treatment. Which code should your message contain?
N a. MAF Y b. MAB N c. MAA N d. MAE 812: You are fighting a class "B" fire with a portable dry chemical extinguisher. The discharge should be directed __________.
Y a. at the seat of the fire, starting at the near edge N b. to bank off a bulkhead onto the fire N c. over the top of the fire N d. at the main body of the fire 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 1026: A liferaft with a capacity of 8 people used in ocean service is required by regulations to carry __________.
N a. 8 liters of fresh water N b. 12 units of provisions Y c. 12 liters of fresh water N d. 24 units of provisions 1095: When launching a lifeboat, frapping lines should be rigged __________.
N a. before the gripes are released N b. before the boat is moved from the davits Y c. at the embarkation deck N d. after the boat is in the water 1101: A crew member has suffered frostbite to the toes of the right foot. Which is NOT an acceptable first aid measure?
Y a. Rub the toes briskly. N b. Elevate the foot slightly. N c. Rewarm rapidly. N d. Give aspirin or other medication for pain if necessary. 1402: When using carbon dioxide to fight a fire on a bulkhead, the CO2 should be applied __________.
Y a. first to the bottom of the flaming area, sweeping from side to side, and following the flames upward N b. in a circular motion from the middle of the bulkhead outward N c. to the top of the flaming area, sweeping from side to side, and working toward the bottom N d. in an up-and-down motion from one side of the bulkhead to the other 1641: The most serious effect of air trapped in a non-treated diesel engine jacket water cooling system is that it __________.
Y a. causes corrosion N b. reduces the ability of the system to cool the engine N c. can form pockets which block the flow of coolant through the system N d. accelerates formation of metal plating 1758: A flooded leg on a liftboat would adversely affect the vessel's stability underway by __________.
N a. increasing the righting moment N b. decreasing the vessel's displacement N c. increasing the reserve buoyancy Y d. shifting the CG (center of gravity) off center 1772: The definition of "partially protected waters", as used in the Regulations does not include __________.
N a. harbors, lakes and similar waters determined by the OCMI to be protected waters N b. waters within 20 nautical miles from the mouth of a harbor of safe refuge N c. the Great Lakes during the summer season Y d. sheltered waters presenting no special hazard 1800: Which U.S. agency issues a Certificate of Financial Responsibility?
N a. Environmental Protection Agency Y b. Coast Guard N c. Corps of Engineers N d. Maritime Administration 1824: Most recreational sailing craft have triangular sails and are said to be __________.
N a. Gaff rigged N b. Spinnaker rigged Y c. Marconi rigged N d. Square rigged 1830: Your voyage planning indicates you will arrive at a waypoint in longitude 149°16.3'E at 0947 ZT on 3 March 1988. How should this date be entered into an AMVER report?
N a. 030947K MAR N b. 094703K Y c. 022347Z N d. 234703Z 1963: How is a distress message normally initiated through INMARSAT?
N a. All INMARSAT units have a dedicated key that can be pressed for immediate action. N b. By adding the word "DISTRESS" in the first line of the message's preamble Y c. Certain INMARSAT units have a dedicated key that can be pressed for immediate action, while other systems provide menu-driven features. N d. By transmitting the distress message on the U.S. Coast Guard's dedicated monitoring channel. 2086: A partially full tank causes a virtual rise in the height of the __________.
N a. metacenter N b. center of buoyancy N c. center of flotation Y d. center of gravity 2140: You have 700 tons of below deck tonnage including liquid mud. Your existing deck cargo is 200 tons with a VCG above the deck of 3.0 feet. What is the maximum additional cargo tonnage you are permitted to load? (See illustration D036DG, stability letter for M.V. Hudson.) (D036DG )
Y a. 20 tons N b. 50 tons N c. 80 tons N d. 210 tons 2301: If water is rising in the bilge of a survival craft, you should first __________.
N a. abandon the survival craft N b. check for cracks in the hull N c. shift all personnel to the stern Y d. check the bilge drain plug 2474: Your vessel's drafts are FWD 19'-03", AFT 21'-07". Use the information in Section 1, the blue pages, of the Stability Data Reference Book to determine the final drafts if 142 tons of cargo are loaded 86 feet forward of amidships.
N a. FWD 18'-09", AFT 21'-04" N b. FWD 18'-10", AFT 21'-01" N c. FWD 19'-10", AFT 21'-08" Y d. FWD 19'-11", AFT 21'-04" 2586: To which group of hydrocarbons do Benzene and Toluene belong?
N a. Ketone N b. Caustic Y c. Aromatic N d. Alcohol 2777: The lubber's line on a magnetic compass indicates __________.
N a. compass north Y b. the direction of the vessel's head N c. magnetic north N d. a relative bearing taken with azimuth circle 2956: The SS AMERICAN MARINER arrived in port with drafts of: FWD 21'-10.6", AFT 22'-11.6". Cargo was loaded and discharged as shown. Use sheet 2 in the white pages of The Stability Data Reference Book to determine the final drafts. ST-0089
N a. FWD 22'-00.1", AFT 23'-00.1" N b. FWD 21'-11.0", AFT 23'-01.2" Y c. FWD 21'-10.0", AFT 22'-10.0" N d. FWD 21'-08.9", AFT 22'-11.1" 3227: A semisubmersible, while floating level, displaces 18,000 long tons. Bulk, weighing 400 long tons, is placed in P-tanks located 80 feet to starboard of the centerline. What is the new TCG?
N a. 0.02 foot starboard of centerline N b. 0.32 foot starboard of centerline Y c. 1.74 feet starboard of centerline N d. 1.78 feet starboard of centerline 3290: On vessels that are required to have fixed carbon dioxide fire extinguishing systems, the controls to operate the system shall be installed in an accessible location __________. (small passenger vessel regulations)
Y a. outside the space protected N b. inside the space protected N c. at the carbon dioxide cylinders N d. in a padlocked waterproof metal box 3306: The SS AMERICAN MARINER will sail with the load shown. Use the white pages of The Stability Data Reference Book to determine the drafts. ST-0120
N a. FWD 26'-09", AFT 28'-05" Y b. FWD 26'-05", AFT 28'-07" N c. FWD 26'-04", AFT 28'-10" N d. FWD 26'-00", AFT 29'-00" 3383: The DEEP DRILLER, at a mean draft of 45 feet, has a three-foot trim by the stern and a two-foot list to port. What is the draft at the starboard forward draft mark?
Y a. 42.5 feet N b. 44.5 feet N c. 45.5 feet N d. 47.5 feet 3401: While in port, what signal flag would inform the vessel's crew to report on board because the vessel was about to proceed to sea?
Y a. "P" N b. "H" N c. "U" N d. "A" 3414: A rigid lifesaving device designed to support survivors in the water is a __________.
N a. rigid liferaft Y b. life float N c. inflatable liferaft N d. survival capsule 3418: Your 600 GT vessel must carry a line-throwing appliance if it is certificated for __________.
N a. river service N b. Great Lakes service Y c. coastwise service N d. None of the above 3524: Each fireman's outfit and its spare equipment on a tankship must be stowed in a(n) __________.
N a. locked cabinet in the machinery space N b. unlocked cabinet in the machinery space Y c. separate and accessible location N d. location near a fire hydrant 3537: The marine riser on the DEEP DRILLER should be disconnected if it appears the mooring line tensions will exceed 522 kips or the ball joint angle will exceed __________.
N a. 4° N b. 5° N c. 7° Y d. 10° 3633: The KG of the DEEP DRILLER increases from 57 feet to 59 feet while drilling at a 60 foot draft during an ice storm. What action should be taken?
N a. Continue drilling operations while waiting for the ice to melt Y b. Reduce the deck load until you reach the allowable KG for draft N c. Notify the USCG that the rig is temporarily above the allowable KG N d. Deballast to reach the allowable KG 3806: A liferaft which has inflated bottom-up on the water __________.
Y a. should be righted by standing on the carbon dioxide cylinder, holding the righting straps and leaning backwards N b. should be righted by standing on the life line, holding the righting straps leaning backwards N c. will right itself when the canopy tube inflates N d. must be cleared of the buoyant equipment before it will right itself 4067: The DEEP DRILLER is operating as shown in Sample Load Form #4 (Drilling). Assume ballast added or discharged to remain at a constant draft is at a VCG of 10 feet. How much non-liquid load would have to be removed from an average height of 130 feet above the keel to meet the maximum allowable KG at a draft of 60 feet for winds greater than 70 knots?
N a. 373 long tons N b. 457 long tons N c. 484 long tons Y d. 524 long tons 4151: The DEEP DRILLER is loaded as shown in the Sample Load Form #3 (Preparing to Drill). If the liquid mud in mud pit #1 (see table 8) is dumped, what would be the new draft?
N a. 60 feet 9.6 inches N b. 59 feet 9.3 inches Y c. 59 feet 2.7 inches N d. 56 feet 10.9 inches 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 4241: The COASTAL DRILLER is elevated in 250 feet of water, experiencing 2 knots current and 70 knot winds. With a maximum leg reaction of 5,760 kips, the maximum wave height for drilling is __________.
N a. 15 feet Y b. 20 feet N c. 25 feet N d. 30 feet 4313: The COASTAL DRILLER, in transit with winds expected to exceed 70 knots, must lower the legs to 60.5 feet below the hull in order to meet the requirements for leg strength and __________.
Y a. stability N b. variable load N c. environmental load N d. load line 4323: Guide tolerances during elevation of the jack-up rig will __________.
N a. reduce spud can bearing pressure Y b. keep the unit level and reduce overloading N c. reduce stresses on the hull N d. minimize the potential for punch-through 4371: Where the seabed consists of sand or silt, the most severe potential problem for an independent-leg jack-up can result from __________.
Y a. scour N b. penetration N c. marine growth N d. insufficient preload 4527: The sounding for Drill Water Tank #18 for the Coastal Driller is 1.25 feet. It is decided to fill the tank. What is the vertical center of gravity for the added liquid?
Y a. 3.13 feet N b. 2.50 feet N c. 1.87 feet N d. 0.63 foot 5491: The American Petroleum Institute recommends that a new anchor chain should be inspected after being in service for __________.
N a. 1 year Y b. 3 years N c. 5 years N d. 10 years 5571: Which two components pass through the shank of an LWT anchor?
Y a. Anchor shackle and stock N b. Tripping palm and flukes N c. Crown and chocks N d. Swivel and stabilizer bar 6838: What is an advantage of a steam turbine over a diesel for the main propulsion?
N a. Faster response from ahead to astern N b. Less fuel consumption N c. Cheaper initial installation cost Y d. Less weight per unit of horsepower 8105: What is the port leg reaction for the COASTAL DRILLER if the total weight is 15,000 kips, LCG is 120 feet, and TCG is 1.0?
Y a. 4,909 kips N b. 4,931 kips N c. 4,950 kips N d. 5,160 kips 8153: The DEEP DRILLER, at a draft of 60 feet and a total vertical moment of 1,012,598 foot-tons, pumps 2,068.7 long tons of ballast overboard. The VCG of the discharged ballast is 15.0 feet. What is the new height of the center of gravity?
N a. 50.62 feet N b. 55.89 feet N c. 60.56 feet Y d. 61.16 feet 8395: What is the purpose of the intake/exhaust valves in a diesel engine?
Y a. They regulate the combustion cycle. N b. They supply cooling water. N c. They synchronize the ignition spark. N d. They supply and regulate the lubricant flow. 8983: The time required to incline from port to starboard and back to port again is called __________.
N a. initial stability N b. range of stability N c. inclining moment Y d. rolling period 9342: The ventilation system of your ship has fire dampers restrained by fusible links. Which statement is TRUE?
Y a. Fusible links must be replaced if a damper is activated. N b. Fusible links are tested by applying a source of heat to them. N c. Fusible links must be replaced at every inspection for certification. N d. A fusible link will automatically open after a fire is extinguished and reset the damper. 9703: Which of the following statements is/are FALSE in regard to Ro-Ro vessels' spaces that are "specially suitable for vehicles"?
N a. The spaces shall be fitted with an approved fire or smoke detecting system. N b. The spaces shall be fitted with an approved fixed fire extinguishing system. Y c. The installation of a water sprinkler extinguishing system is prohibited. N d. All of the above