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.
42: The advantages of using an inert gas system on a tank vessel is that it provides __________.
N a. for faster loading Y b. tank atmosphere with low oxygen content N c. better fuel economy N d. All of the above 115: Which is TRUE concerning immersion suits and their use?
N a. Only a light layer of clothing may be worn underneath. Y b. They provide sufficient flotation to do away with the necessity of wearing a life jacket. N c. They should be tight fitting. N d. A puncture in the suit will not appreciably reduce its value. 221: Which statement about the free surface effect is TRUE?
N a. It increases in direct proportion to the length of the tank times the breadth squared. Y b. It decreases at increased angles of heel due to pocketing when a tank is 90% full. N c. It decreases in direct proportion to increasing specific gravity of the liquid in the tank. N d. In practice, the correction is considered to be a virtual reduction of KG. 619: A fire in the galley ALWAYS poses the additional threat of __________.
N a. contaminating food with extinguishing agent N b. spreading through the engineering space N c. causing loss of stability Y d. a grease fire in the ventilation system 636: What is required by regulations concerning the stowage of lifeboats on cargo vessels?
Y a. Each lifeboat must have a launching appliance. N b. Launching appliances must be of the gravity type. N c. There may not be more than two launching appliances on the same deck. N d. All of the above 690: Those ship's tanks that are particularly important for trimming the ship are the __________.
N a. domestics N b. settlers N c. deeps Y d. peaks 701: Which statement about free surface is TRUE?
N a. A partially filled space with 40% surface permeability will have greater free surface effect than one with 60% surface permeability. N b. Pocketing increases the loss of GM due to free surface effect. N c. Cargo with a specific gravity of 1.05 has less free surface effect than a cargo with a specific gravity of 0.98. Y d. Pocketing occurs at small angles of inclination when a tank is 98% full. 901: A squeeze-grip type carbon dioxide portable fire extinguisher has been partially discharged. It should be __________.
N a. replaced in its proper location if weight loss is no more than 15% N b. replaced in its proper location if weight loss is no more than 25% Y c. labeled empty and recharged as soon as possible N d. labeled empty and replaced in its proper location regardless of weight 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 1264: The operating cord on an inflatable liferaft should be renewed by __________.
N a. removing the top half of the shell, cutting the line at its source, and renewing completely N b. cutting the line where it enters the case and replacing that portion N c. leaving the original line and tying another one to it so the two lines will take the strain Y d. an approved servicing facility ashore 1536: Which types of portable fire extinguishers are designed for putting out electrical fires?
N a. Foam and water (stored pressure) N b. Foam and carbon dioxide N c. Foam and dry chemical Y d. Dry chemical and carbon dioxide 1542: The SS AMERICAN MARINER has the following drafts: FWD 09'-10", AFT 15'-08". Upon completion of loading and bunkering the items listed will be on board. Use the white pages of The Stability Data Reference Book to determine the minimum GM required to meet a one compartment standard. ST-0041
N a. 1.91 feet N b. 2.09 feet Y c. 2.21 feet N d. 2.48 feet 1678: Your vessel is 79 feet long with 20 people aboard. The coaming of a deck above the lowest weather deck (except an exposed forecastle deck) must be at least __________.
N a. 6" high N b. 12" high N c. 24" high Y d. Not required 1683: You are running before a strong wind in a sloop. The most dangerous thing to do is __________.
Y a. jibe N b. tack about N c. reef the mainsail N d. strike the jib 1732: The blowers of an inert gas generation system aboard a tanker, will be automatically secured if __________.
N a. normal water supply at the water seal is lost N b. the temperature of the inert gas being delivered to the cargo tanks is more than 150°F N c. the cooling water supply to the scrubbers is lost Y d. all of the above 1742: What is the report identifier code for the first AMVER report sent at the start of a voyage?
N a. DP N b. DR N c. PR Y d. SP 1878: The liquid mud tanks on your vessel measure 20'L by 18'B by 7'D. The vessel's displacement is 866 T and the specific gravity of the mud is 1.8. What is the reduction in GM due to 2 of these tanks being slack?
N a. 0.24 foot N b. 0.56 foot N c. 0.95 foot Y d. 1.12 feet 1931: The SS NORTHLAND is loaded to drafts: FWD 17'-03", AFT 19'-03". The KG is 23.6 feet. Use the salmon pages of the Stability Data Reference Book to determine the angle of list if #6 starboard tank is fully loaded with 1624 tons of salt water ballast (VCG is 36.5 feet off the centerline).
N a. 3.0° Y b. 4.4° N c. 6.0° N d. 7.5° 1952: Your vessel displaces 497 tons. The existing deck cargo has a center of gravity of 2.5 feet above the deck and weighs 24 tons. If you load 18 tons of ground tackle with an estimated center of gravity of 18 inches above the deck, what is the final height of the CG of the deck cargo?
N a. 1.86 feet Y b. 2.07 feet N c. 2.35 feet N d. 2.76 feet 2098: The SS AMERICAN MARINER is loaded with the cargo shown. Use the white pages of The Stability Data Reference Book to determine the amount of liquid loading required in the double bottom tanks to meet a one compartment standard. ST-0049
Y a. 395 tons N b. 530 tons N c. 750 tons N d. 990 tons 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 2132: On which vessels is GMDSS required?
N a. All vessels capable of international voyages N b. Vessels operating outside of the range of VHF coastal radio stations Y c. SOLAS Convention ships of 300 gross tonnage or more. N d. Coastal vessels of less than 300 gross tons 2352: Your vessel's drafts are: FWD 18'-09", AFT 19'-01". 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. 5333 tons N b. 5420 tons Y c. 5649 tons N d. 5775 tons 2356: Your vessel's drafts are: FWD 22'-04", AFT 21'-06". Use the information in Section 1, the blue pages, of the Stability Data Reference Book to determine the final drafts if: (1) 300 tons are loaded 122 feet forward of amidships; (2) 225 tons are loaded 150 feet aft of amidships; and 122 tons of fuel are pumped 72 feet aft.
Y a. FWD 22'-11", AFT 22'-09" N b. FWD 23'-00", AFT 23'-00" N c. FWD 23'-02", AFT 23'-01" N d. FWD 23'-03", AFT 23'-05" 2404: Regulations require that cargo tanks carrying grades D or E liquids on tank barges be vented with __________.
Y a. gooseneck vents and flame screens N b. pressure-vacuum relief valves N c. branch vent lines and a vent header N d. forced draft blowers 2600: If your Bunker-C barge has operated in salt water for more than 12 months in the 24 month period since it was last dry-docked, when is it required to be hauled out again?
N a. 36 months since last dry-docking Y b. 24 months since last dry-docking N c. 18 months since last dry-docking N d. 12 months since last dry-docking 2678: What happens to the pulling power of a winch when retrieving wire rope?
N a. It increases Y b. It decreases N c. It remains the same N d. It fluctuates, depending on the gearing system 2787: You are on a commercial fishing vessel 78 feet long. At least one of your ring buoys or throwable flotation devices must have a line of what minimum length attached?
N a. 60 feet N b. 70 feet N c. 80 feet Y d. 90 feet 2993: Convection spreads a fire by __________.
N a. the transfer of heat across an unobstructed space N b. burning liquids flowing into another space N c. transmitting the heat of a fire through the ship's metal Y d. heated gases flowing through ventilation systems 3084: All life floats and buoyant apparatus shall be clearly and legibly marked or painted with the __________. (small passenger vessel regulations)
N a. manufacturer's price, stock number, and inspection date N b. vessel's name, tonnage, and horsepower Y c. vessel's name in 3" letters N d. vessel's name, and number of persons allowed, all in at least 3" inch high letters and numbers 3184: The center of buoyancy and the metacenter are in the line of action of the buoyant force __________.
N a. only when there is positive stability N b. only when there is negative stability N c. only when there is neutral stability Y d. at all times 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 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 3321: A semisubmersible displacing 18,000 long tons has an LCG 2 feet forward of amidships. Bulk, weighing 400 long tons, is discharged from P-tanks located 50.8 feet aft of amidships. What is the new LCG?
N a. 0.8 foot forward of amidships N b. 1.20 feet forward of amidships N c. 3.11 feet forward of amidships Y d. 3.20 feet forward of amidships 3431: The DEEP DRILLER, at a draft of 60 feet, has a KGL of 55.4 feet and an LCG of 2.37 feet. What is the trim in feet?
N a. 2.0 feet by the head Y b. 4.0 feet by the head N c. 4.0 feet by the stern N d. 8.0 feet by the stern 3436: After launching, an inflatable raft should be kept dry inside by __________.
N a. opening the automatic drain plugs N b. draining the water pockets N c. using the electric bilge pump Y d. using the bailers and cellulose sponge 3475: What is the increase in the longitudinal free surface correction for the DEEP DRILLER at a draft of 60 feet if 103.48 long-tons of ballast are transferred from a full ballast tank 1P to an empty ballast tank 10S?
N a. 0.50 foot Y b. 0.47 foot N c. 0.27 foot N d. 0.13 foot 3515: The lightweight longitudinal free surface moments for the DEEP DRILLER are __________.
N a. 680,914 ft-long tons Y b. 000 ft-long tons N c. -5,937 ft-long tons N d. -6,716 ft-long tons 3732: Heat exhaustion is caused by excessive __________.
N a. loss of body temperature Y b. loss of water and salt from the body N c. gain in body temperature N d. intake of water when working or exercising 3816: When abandoning an OSV, following the launching of the survival craft you should __________.
N a. plot a course for the nearest land N b. take a vote on the direction in which to go Y c. stay in the immediate area N d. go in one direction until fuel runs out 3926: To keep injured survivors warm in the water after abandoning ship, 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 water at intervals of fifteen minutes 4127: While loaded as shown in the DEEP DRILLER Sample Load Form #3 (Preparing to Drill), all of the casing is discharged. What is the change in LCG?
N a. 0.45 foot Y b. -0.45 foot N c. -1.78 feet N d. -2.68 feet 4137: The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). According to the deck load graph, how much additional deck load could be added on the unit?
Y a. 435.59 long tons N b. 321.59 long tons N c. 281.59 long tons N d. 192.59 long tons 4195: The motions of the COASTAL DRILLER during a normal transit when wind speeds are less than 70 knots are limited by __________.
N a. stability N b. deck edge immersion N c. wave heights Y d. leg strength 4251: What are the maximum acceptable levels of ice and snow accumulations on the COASTAL DRILLER?
N a. 3 inches N b. 2 inches N c. 1 1/4 inches Y d. none 4260: Which statement about immersion suits is TRUE?
Y a. The suit must, without assistance, turn an unconscious person's mouth clear of the water within 5 seconds. N b. The immersion suit seals in body heat and provides protection against hypothermia for weeks. N c. The suit will still be serviceable after a brief (2-6 minutes) exposure to flame and burning. N d. The collar must be inflated before abandoning ship. 4261: The rotary of the COASTAL DRILLER is located 34 feet aft of the transom and 2 feet to port of the centerline. With the changes to lightweight shown in the Operating Manual, the maximum allowable hook load is __________.
N a. 1000 kips N b. 875 kips Y c. 854 kips N d. 776 kips 4362: The free surface effects of a partially full tank in a vessel increase with the __________.
Y a. surface area of the fluid in the tank N b. displacement volume of the vessel N c. draft of the vessel N d. height of the tank above the keel 4413: The COASTAL DRILLER, while in a normal transit, experiences single amplitude rolling of three degrees. What is the minimum period of roll which does not exceed the design limits of the legs?
N a. 1.5 seconds N b. 3.0 seconds Y c. 5.5 seconds N d. 7.0 seconds 4521: While in transit at a draft of 10.5 feet, the COASTAL DRILLER has a KGT of 60.0 feet. What is the GMT?
N a. 139.92 feet N b. 138.89 feet N c. 79.92 feet Y d. 78.89 feet 5061: During a move to a new location, a jack-up drilling unit with personnel on board is towed through a heavy rainstorm. What signal must be sounded by the drilling rig when visibility is restricted?
N a. One prolonged blast N b. Two prolonged blasts N c. One prolonged and two short blasts Y d. One prolonged and three short blasts 5263: The DEEP DRILLER, loaded as shown in Sample Load Form #4 (Drilling), suffers major damage which results in flooding in tank C3S. Your best countermeasure is to __________.
Y a. pump from 9S N b. pump from C3S N c. counterflood in 1P N d. counterflood in 10S 5313: The COASTAL DRILLER, in ocean transit at a draft of 10 feet 0 inches with winds greater than 70 knots, has a KGT of 39.0 feet and a KGL of 38.6 feet. The margin on the maximum allowable KG is __________.
Y a. 2.6 feet N b. 4.1 feet N c. 26.3 feet N d. 26.8 feet 5501: What is a major disadvantage of Di-Lok chain compared with Oil Rig Quality (stud link) chain in floating drilling rig operations?
Y a. Shorter fatigue life N b. Higher weight N c. Lower strength N d. Greater expense 5625: For a semisubmersible moored in heavy weather conditions, the leeward lines should be paid out, and the windward lines adjusted so that __________.
N a. the unit remains as close to the hole as possible Y b. several weather lines carry about the same tension N c. at least 1,000 feet of chain lie along the bottom N d. the vertical component of chain tension at the lower fairlead is not excessive 5863: If a MODU under tow starts jumping on its tow line, the most appropriate action to alleviate the condition is to __________.
N a. change course N b. slow down N c. heave to Y d. adjust tow line length 6257: If there are a number of survivors in the water after abandoning a MODU, they should __________.
N a. tie themselves to the unit so they won't drift with the current Y b. form a small circular group to create a warmer pocket of water in the center of the circle N c. send the strongest swimmer to shore for assistance N d. form a raft by lashing their life preservers together 8555: The discharge side of every fire pump must be equipped with a __________.
N a. gate valve Y b. pressure gauge N c. check valve N d. strainer 8881: The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). How much additional deck load can be placed aboard without exceeding the deck load limit?
N a. 1,335.6 long tons N b. 1,086.6 long tons N c. 585.4 long tons Y d. 435.6 long tons 8994: Two types of anchor shackles which are currently available are __________.
N a. U-Type and posilok shackles N b. C-Type and wedge shackles Y c. D-Type and bow shackles N d. wedge and kenter shackles