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.
90: Refer to the illustration below. Which represents the righting arm? (D001SA )
N a. GM Y b. GZ N c. BM N d. Angle MGZ 126: Which portable fire extinguisher is classified as a type B-III extinguisher?
N a. 12 gallon soda acid N b. 20 gallon foam N c. 30 pound carbon dioxide Y d. 20 pound dry chemical 157: On a tankship, sanitary inspections of the crew's quarters are the responsibility of the __________.
N a. Master and Second Mate Y b. Master and Chief Engineer N c. Master and union delegate N d. Master and Chief Mate 201: Your vessel is equipped with totally enclosed lifeboats. Which statement is TRUE when the boat is enveloped in flames?
N a. The ventilators will automatically close by the action of fusible links. N b. The motor takes its air supply from outside the lifeboat to prevent asphyxiation of the crew. N c. A water spray system to cool the outside of the boat is operated by a high-volume manual pump. Y d. An air tank will provide about ten minutes of air for the survivors and the engine. 250: Which will be a result of removing on-deck containers?
N a. KG will increase Y b. Metacentric height will increase N c. KB will increase N d. Reserve buoyancy will decrease 299: Which of the following statements relating to AMVER (Automated Mutual-assistance Vessel Rescue) is TRUE?
N a. An AMVER participant is under greater obligation to render assistance to a vessel in distress than a non-participant. Y b. There is no cost to the ship or owner for messages sent within the AMVER system. N c. An AMVER participant is not relieved of the obligation to give 24 hour advance notice to the U.S. Coast Guard before entering a U.S. port from offshore. N d. The AMVER system does not reduce the time lost for vessels responding to calls for assistance. 347: The danger of a charged hose left unattended on deck with the nozzle open is __________.
N a. the hose could burst Y b. the nozzle end will whip about causing damage or injury N c. water damage to vessel's cargo or structure N d. personnel might trip over the hose 455: Fuel for use on a vessel (300 GT or more constructed before July 1, 1974) may be carried in independent tanks forward of a collision bulkhead if the __________.
Y a. tanks were designated, installed, or constructed for fuel oil carrying before July 1, 1974 N b. tank is 18 inches inboard of the hull structure N c. shell of the tank is of the same thickness or greater than that of the vessel's hull N d. fuel has a flash point above 180°F 457: According to the "Vessel Bridge-to-Bridge Radiotelephone Act", your radiotelephone log must contain __________.
N a. a record of all routine calls N b. a record of your transmissions only N c. the home address of the vessel's Master or owner Y d. a summary of all distress calls and messages 496: The lifeboat releasing gear lever should be marked with the words __________.
N a. "DANGER, DO NOT TOUCH" N b. "DANGER, BOAT MAY DROP" N c. "DANGER, LEVER RELEASES BOAT" Y d. "DANGER, LEVER DROPS BOAT" 628: The most likely location for a liquid cargo fire to occur on a tanker would be __________.
N a. in the midships house N b. at the main deck manifold N c. at the vent header Y d. in the pumproom 632: Portable foam type fire extinguishers are most effective on __________.
N a. mattress fires Y b. oil fires N c. wood fires N d. All of the above 788: Fires of which class would most likely occur in the engine room of a vessel?
N a. Classes A and B Y b. Classes B and C N c. Classes C and D N d. Classes A and D 897: Which statement is TRUE concerning carbon dioxide?
N a. It is lighter than air. Y b. It is an inert gas. N c. It is used mostly on class A fires. N d. All of the above 908: If ignited, which material would be a class B fire?
N a. Magnesium N b. Paper N c. Wood Y d. Diesel Oil 953: You are at sea on a vessel that has a beam of 50 feet, and you calculate the period of roll to be 22 seconds. What is the vessel's metacentric height?
N a. 0.8 ft Y b. 1.0 ft N c. 1.2 ft N d. 1.4 ft 1084: On small passenger vessels, what type of devices are required at both the tank and engine connections of all internal combustion engine fuel lines?
N a. Clean out plates N b. Fuel gauges N c. Drain valves Y d. Shut-off valves 1406: The principal danger from ice collecting on a vessel is the____________________.
N a. decrease in capabilities of radar N b. decrease in displacement N c. adverse effect on trim Y d. loss of stability 1466: You used a carbon dioxide (CO2) fire extinguisher but did not empty the extinguisher. You must have it recharged if the weight loss exceeds __________.
N a. one percent of the weight of the charge N b. five percent of the weight of the charge N c. seven percent of the weight of the charge Y d. ten percent of the weight of the charge 1526: Which type of portable fire extinguishers is NOT designed for use on flammable liquid fires?
N a. Foam N b. Dry chemical Y c. Water (cartridge-operated) N d. Carbon dioxide 1529: Under the Pollution Regulations, garbage disposal records must be kept __________.
N a. until the end of the voyage N b. until the next Coast Guard inspection N c. one year Y d. two years 1629: Which statement is TRUE about fire fighting foam?
N a. The air bubbles in foam act as an insulator in fighting a class C fire. N b. The effectiveness of foam in forming a blanket over a burning liquid increases as the temperature of the liquid increases. N c. Foam can be used to control gases escaping from compressed gas cylinders. Y d. Foam sets up a vapor barrier over a flammable liquid preventing flammable gases from rising. 1681: An LWT anchor often has difficulty tripping in __________.
N a. sand Y b. soft soil N c. stiff clay N d. heterogeneous soil 1768: The flammable limit of methyl ethyl ketone is from __________.
Y a. 1.8% to 11.5% N b. 6.6% to 12.1% N c. 9.6% to 15.1% N d. 12.2% to 18.1% 1852: The liquid mud tanks on your vessel measure 32'L by 15'B by 8'D. The vessel's displacement is 640 tons 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. 0.74 foot N b. 1.24 feet Y c. 1.41 feet N d. 1.66 feet 1875: After abandoning ship which action should be taken IMMEDIATELY upon entering a liferaft?
N a. Open equipment pack. N b. Issue anti-seasickness medicine. Y c. Get clear of the ship. N d. Dry the liferaft floor and inflate. 1919: A sailing vessel with the wind coming from 050° relative would be __________.
Y a. close hauled on the starboard tack N b. reaching on a starboard tack N c. on a broad reach on a port tack N d. running before the wind 2048: Your drafts are: FWD 6'-02", AFT 6'-08". From past experience, you know that the vessel will increase her draft 1 inch for every 6 tons loaded. There is rig water on board and 23 tons of deck cargo. How many more tons of cargo can be loaded and still maintain the same trim? (D037DG )
Y a. 6 tons N b. 12 tons N c. 18 tons N d. 24 tons 2096: Steam driven pumps are considered, by regulations, sources of vapor ignition if the steam temperature is at least __________.
N a. 100°C N b. 212°F Y c. 500°F N d. 1200°F 2110: You have 650 tons of below deck tonnage including liquid mud. Your existing deck cargo is 140 tons with a VCG above the deck of 2.5 feet. What is the maximum additional cargo tonnage you are permitted to load? (See illustration D036DG, stability letter for M.V. Hudson.) (D036DG )
N a. 15 tons N b. 48 tons Y c. 83 tons N d. 140 tons 2221: In heavy seas the helmsman should steer the survival craft __________.
Y a. into the seas N b. broadside to the seas N c. in the same direction as the seas N d. in a series of figure-eights 2260: You are making a heavy lift with the jumbo boom. Your vessel displaces 18,000 T. The 50-ton weight is on the pier, and its center is 75 feet to starboard of the centerline. The head of the boom is 112 feet above the base line, and the center of gravity of the lift when stowed on deck will be 56 feet above the base line. As the jumbo boom takes the strain, the ship lists 3.5°. What is the GM when the cargo is stowed?
N a. 3.19 feet N b. 3.24 feet N c. 3.40 feet Y d. 3.56 feet 2500: According to the Chemical Data Guide, which extinguishing agent is NOT recommended for use in fighting an ethylamine fire?
N a. Alcohol foam N b. Carbon dioxide N c. Dry chemical Y d. Water fog 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 2615: On a MODU, the keel is the primary strength member of the lower hull form in which direction?
N a. transverse N b. diagonal Y c. longitudinal N d. vertical 2756: Your vessel's drafts are: FWD 18'-09", AFT 20'-05"; and the KG is 23.8 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the righting arm at 26° inclination if the center of gravity is 1.0 foot off center.
N a. 0.0 feet N b. 0.4 foot Y c. 0.8 foot N d. 1.7 feet 2764: If you wear extra clothing when entering the water after abandoning ship it will __________.
N a. weigh you down Y b. preserve body heat N c. reduce your body heat N d. make it more difficult to breathe 2895: The downflooding angle for a MODU is the minimum angle at which __________.
N a. the load line becomes submerged Y b. a non-watertight opening is at still water level N c. offset becomes excessive N d. reserve buoyancy is a maximum 3345: When launching an inflatable liferaft, you should make sure that the operating cord is __________.
Y a. fastened to some substantial part of the vessel N b. not fastened to anything N c. secured to the hydrostatic release N d. fastened to the raft container 3361: The moment created by a force of 12,000 tons and a moment arm of 0.25 foot is __________.
N a. 48,000 ft-tons N b. 6,000 ft-tons Y c. 3,000 ft-tons N d. 0 ft-tons 3392: 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-0126
Y a. 595 tons N b. 870 tons N c. 1200 tons N d. 1350 tons 3853: Coast Guard Regulations (46 CFR) require inflatable liferafts to be equipped with __________.
N a. a first aid kit N b. an instruction manual N c. a sea anchor Y d. All of the above 3962: When should food or water be provided to survivors after boarding a liferaft?
N a. After 12 hours Y b. After 24 hours N c. After 48 hours N d. Some food and water should be consumed immediately and then not until 48 hours later 3963: Salt water ballast tank 2P on the DEEP DRILLER contains 5.0 feet of ballast. It is decided to fill the tank. What is the VCG of the added liquid?
N a. 7.5 feet N b. 10.0 feet Y c. 12.5 feet N d. 15.0 feet 3973: What are the additional vertical moments created when P-tank #4 in the DEEP DRILLER sample load form #1 (Transit) is completely filled?
N a. 2,252 foot-tons Y b. 9,413 foot-tons N c. 11,665 foot-tons N d. 13,917 foot-tons 3984: As shown in the illustration, item #8 would be a(n)______________. (D014SA )
N a. recognition light Y b. rain water catchment tube assembly N c. pressure relief valve N d. floating sheath knife 3985: While loaded as shown in the DEEP DRILLER Sample Load Form #4 (Drilling), all of the liquid mud is dumped. What is the new location of the longitudinal center of gravity?
Y a. 1.71 feet N b. 1.94 feet N c. 2.09 feet N d. 2.23 feet 3995: The DEEP DRILLER is loaded as shown in Sample Load Form #4 (Drilling). What would be the new sum of vertical moments for the Stores & Supplies if paint weighing 3.48 tons is added to the paint locker?
Y a. 13,346 foot-tons N b. 5,054 foot-tons N c. 964 foot-tons N d. 292 foot-tons 4643: What is the change in longitudinal moments for the Coastal Driller if 2.0 feet of drill water is transferred from a full drill water tank #23 to an empty drill water tank #6?
N a. 7,990 foot-kips increase Y b. 7,990 foot-kips decrease N c. 8,502 foot-kips decrease N d. 16,041 foot-kips decrease 4743: The COASTAL DRILLER is observed to be level at a draft of 10 feet 6 inches. At the same time, the calculated load form shows the displacement to be 13,445 kips, total longitudinal moments 1,613,466 foot-kips, and total transverse moments -10,000 foot-kips. What is the longitudinal location of the missing load?
N a. 46 feet AFO Y b. 84 feet AFO N c. 189 feet AFO N d. 217 feet AFO 4795: The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). What is the new LCG if the entire contents of drill water tanks 6 and 7 are discharged?
N a. 118.20 feet N b. 119.44 feet Y c. 120.10 feet N d. 121.36 feet 4805: The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). What is the new Longitudinal Free Surface Correction (FSCL) if the entire contents of drill water tanks 6 and 7 are discharged?
N a. 2.24 feet N b. 2.14 feet N c. 2.10 feet Y d. 1.63 feet 5137: When a floating MODU inclines to an angle slightly greater than the angle of loll, she will __________.
N a. capsize N b. incline further N c. flop to the other side Y d. return to the angle of loll 5196: You are hoisting a heavy lift with the jumbo boom. Your vessel displaces 8560 T. The 45-ton weight is on the pier and its center is 65' to starboard of the centerline. The head of the boom is 95' above the base line and the center of gravity of the lift when stowed on deck will be 55' above the base line. As the jumbo boom takes the strain the ship lists to 5.5°. What is the GM with the cargo stowed?
Y a. 3.74 ft. N b. 3.96 ft. N c. 4.16 ft. N d. 4.35 ft. 5533: Connecting elements of a mooring system should be fabricated from __________.
N a. cast iron Y b. forged steel N c. stainless steel N d. cast steel 5585: Cable tension for catenary calculations is taken at the __________.
N a. chain locker Y b. fairlead N c. anchor N d. contact point of chain with seabed 6213: When patching holes in the hull of a MODU, pillows, bedding, and other soft materials can be used as __________.
N a. caulking Y b. gaskets N c. strongbacks N d. wedges 6913: According to regulations, a Master or person in charge of a MODU is required to submit a report of a loss of life __________.
N a. only when it happens while underway N b. to the next of kin Y c. to the nearest Marine Safety or Marine Inspection Office N d. to the nearest coroner 8405: The most serious effect of oxygen retained in a diesel engine jacket water cooling system is that it __________.
Y a. causes corrosion N b. reduces the effectiveness of the coolant N c. can form air pockets which exclude coolant contact with hot surfaces N d. accelerates formation of hydrogen peroxide deposits 9673: When fighting a large fire on your vessel and attacking it from ABOVE the space on fire, it is important to __________.
N a. rotate personnel, due to heat stress N b. stand erect, to avoid the heat of the deck N c. cool the deck directly above the space on fire Y d. All of the above