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.
67: The explosive range of petroleum vapors mixed with air is __________.
N a. 0% to 1% Y b. 1% to 10% N c. 10% to 15% N d. 12% to 20% 107: What best describes for how long a gas-free test is good?
N a. For as long as is indicated on the gas-free certificate Y b. For the instant that it is made N c. Until valves in line with the tank or compartment are reopened N d. Until changes in temperature or pressure affect the vapor content in the space 230: Initial stability of a vessel may be improved by __________.
N a. removing loose water N b. adding weight low in the vessel N c. closing crossover valves between partly filled double bottom tanks Y d. All of the above 326: CO2 cylinders, which protect the small space in which they are stored must __________.
N a. NOT contain more than 200 pounds of CO2 Y b. be automatically operated by a heat actuator N c. have an audible alarm N d. All of the above 412: To get low-velocity fog from an all-purpose nozzle, you would __________.
N a. attach the bronze nozzle tip to the fog outlet of the nozzle Y b. attach an applicator to the nozzle in place of the bronze nozzle tip N c. attach an applicator to the solid stream outlet on the nozzle N d. simply move the handle to the vertical position on the nozzle 447: According to the "Vessel Bridge-to-Bridge Radiotelephone Act", what is NOT required in the radiotelephone log?
N a. Distress and alarm signals transmitted or intercepted N b. Times of beginning and end of watch period Y c. Routine navigational traffic N d. Daily statement about the condition of the required radiotelephone equipment 514: You hear on the radiotelephone the word "Securite" spoken three times. This indicates that __________.
Y a. a message about the safety of navigation will follow N b. a message of an urgent nature about the safety of a ship will follow N c. the sender is in distress and requests immediate assistance N d. you should secure your radiotelephone 704: Which radiotelephone transmission may be sent over channel 16?
N a. Distress signal MAYDAY N b. Call to a particular station N c. A meteorological warning Y d. All of the above 709: What is the reduction in metacentric height due to free surface when a tank 60 ft. wide and 60 ft. long is partially filled with saltwater? (The vessel's displacement is 10,000 tons.)
N a. 3.00 feet Y b. 3.09 feet N c. 3.15 feet N d. 3.20 feet 998: Fire extinguishers of sizes III, IV, and V are designated as __________.
N a. portable Y b. semi-portable N c. fixed N d. disposable 1034: Which vessels must comply with the vessel bridge-to-bridge radiotelephone regulations while navigating?
Y a. All towing vessels 26 feet in length or greater N b. All passenger vessels less than 100 gross tons N c. All power-driven vessels 12 meters or less in length N d. All of the above 1065: Upon hearing the abandon ship signal, you put on your life jacket and report to your station. After the cover is removed you board your open lifeboat. The FIRST thing to do is to __________.
N a. release the gripes N b. release tricing pendants Y c. put the cap on the drain N d. lift the brake handle 1357: The SS AMERICAN MARINER is partially loaded with a GM of 2.9 feet and drafts of: FWD 17'-10", AFT 19'-04". Use the white pages of the Stability Data Reference Book to determine what tanks you should ballast to increase the GM to 3.9 feet.
Y a. Tanks: DB4, DT6 N b. Tanks: DB3, DB5, DT8 N c. Tanks: DB6, DT7 N d. Tanks: DB2, DT1, DT6 1460: Your vessel has 3 lifeboats on each side. The middle boat on the starboard side is designated as boat number __________.
N a. 2 N b. 2 STARBOARD Y c. 3 N d. 4 1500: The SS AMERICAN MARINER is ready to sail with the load shown. Use the white pages of The Stability Data Reference Book to determine the available GM. ST-0040
N a. Available GM 6.9 ft N b. Available GM 5.3 ft Y c. Available GM 4.1 ft N d. Available GM 3.8 ft 1549: You are sailing in a strong wind and may accidentally jibe when __________.
N a. reaching N b. tacking Y c. running-free N d. in irons 1589: The SS AMERICAN MARINER is ready to load the cargo listed. There is already 3284 tons of cargo on board with a KG of 26.4 feet. Use the white pages of the Stability Data Reference Book to determine the final KG of all the cargo after loading is completed. ST-0043
N a. KG 25.0 feet Y b. KG 25.5 feet N c. KG 26.1 feet N d. KG 26.7 feet 1663: Which tank barges require draft marks?
Y a. All tank barges N b. Tank barges over 50 GT N c. Tank barges over 100 GT N d. Notch barges over 1000 GT 1722: Where are remote readouts for oxygen concentration, pressure, and temperature of an inert gas system required to be located?
N a. Bridge and engine control consoles N b. Bridge and tank(s) being inerted N c. Main deck and engine control consoles Y d. Cargo control and engine control consoles 1805: A sloop is a sailing vessel with __________.
Y a. one mast N b. two masts: with the mizzen stepped abaft the rudder post N c. two masts: with the mizzen stepped forward of the rudder post N d. two masts: a foremast and a mainmast 2267: During the towing of a survival craft, a lookout should be on station to __________.
Y a. release the towline in an emergency N b. help the helmsman steer N c. look for food and water N d. check the water level in the bilge 2277: What periodic inspection is required in order to remain in compliance with the regulations regarding GMDSS ship radio station inspections?
N a. U.S. Coast Guard annual inspection Y b. An inspection at least once every 12 months by the FCC or a holder of a GMDSS Maintainers license N c. FCC inspection every five years N d. Periodic inspections not required if on board maintainers perform routine preventive maintenance 2316: The flammable limits for motor gasoline are __________.
N a. 5.3% to 7% mixture in air N b. 0.9% to 5.9% mixture in air Y c. 1.4% to 7.6% mixture in air N d. 2.5% to 12.8% mixture in air 2403: A frame with two, or sometimes four, arms through which are threaded the guidelines and which is used to keep the drill stem and bit in line with the center opening in the temporary guide base is the __________.
N a. drill stem guide Y b. guide frame N c. drill string frame N d. casing guide 2482: If a cargo of kerosene were considered "too lean" to explode, then it must be __________.
N a. above the "explosive range" N b. within the "explosive range" Y c. below the "explosive range" N d. None of the above 2505: The helicopter deck of a MODU must be marked with the units identification, appropriate aiming circles, and a continuous line on the perimeter which is __________.
N a. 8 inches wide Y b. 16 inches wide N c. 24 inches wide N d. 32 inches wide 2510: Camphor oil is classified as a __________.
N a. Grade A flammable liquid N b. Grade C flammable liquid Y c. Grade D combustible liquid N d. Grade E combustible liquid 2563: The hoist line primarily used for lifting personnel on MODU cranes is called the __________.
N a. personnel line Y b. whip line N c. main hoist line N d. pendant 2664: Gasoline fumes tend to __________.
Y a. settle near the bottom of the bilge N b. settle near the top of the bilge N c. settle evenly throughout all levels of the bilge by mixing with air N d. disperse to atmosphere 2877: In illustration D041DG, the symbol for the vertical plane midway between the fore and aft perpendiculars is __________.
N a. 2 Y b. 3 N c. 4 N d. 5 3229: The engine head, block, and exhaust manifold shall be __________. (small passenger vessel regulations)
Y a. water jacketed N b. air cooled N c. preheated prior to starting N d. drained weekly 3245: 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-0115
Y a. FWD 25'-02", AFT 29'-10" N b. FWD 25'-06", AFT 29'-06" N c. FWD 27'-10", AFT 26'-02" N d. FWD 29'-11", AFT 25'-04" 3278: Gasoline tanks should be filled __________.
N a. to the top to expel all vapors from the tanks N b. to the top so the operator is certain how much fuel he has aboard N c. with only sufficient fuel for the planned trip so excess gasoline is not carried Y d. to near the top with some space allowed for gasoline expansion 3283: The midships house of your break bulk ship is constructed with an interior stair tower from the main deck to the bridge. Under what circumstances may the doors from each deck to the stair tower be kept open when underway?
N a. They can be kept open if the Muster List ("Station Bill") has personnel designated to close them in case of fire. N b. They may be kept open if the ventilation or air conditioning system is shut down. N c. They are to be kept closed at all times. Y d. They may be kept open if they can be automatically closed from the bridge. 3427: A semisubmersible, 200 feet in length between draft marks with the LCF 10 feet aft of amidships, records the following drafts: Port Forward 64'-09"; Port Aft 68'-09"; Starboard Forward 59'-09"; and Starboard Aft 63'-09". What is the trim?
N a. 8 feet by the stern Y b. 4 feet by the stern N c. 2 feet by the stern N d. 4 feet by the head 3536: There are two disadvantages to CO2 as a firefighting agent. One of these is the limited quantity available, and the other is __________.
Y a. the lack of cooling effect on heated materials N b. that it cannot be used in a dead ship situation with no electrical power to the CO2 pump N c. that it breaks down under extreme heat to form poisonous gases N d. there is no effect on a class A fire even in an enclosed space 3543: The DEEP DRILLER's lightweight is the condition prior to loading __________.
N a. deck load N b. deck load and lower-hull liquids N c. deck load, lower-hull liquids, and external loads Y d. deck load, lower-hull liquids, external loads, and deploying anchors 3743: An unconscious person should NOT be __________.
N a. placed in a position with the head lower than the body N b. given an inhalation stimulant Y c. given something to drink N d. treated for injuries until conscious 3924: If you are forced to abandon ship in a liferaft, your course of action should be to __________.
Y a. remain in the immediate vicinity N b. head for the nearest land N c. head for the closest sea-lanes N d. let the persons in the boat vote on what to do 4022: Which towing vessels are NOT required to have an internal communication system between the engine room and the operating station?
Y a. Twin-screw vessels that have operating station control for both engines N b. Vessels on limited routes N c. Fleet boats making or breaking tows N d. Vessels serving a single company or facility 4047: The DEEP DRILLER, loaded as shown in the Sample Load Form #4 (Drilling), discharges a non-liquid load of 275.8 long tons from a position 130 feet above the centerline. What is the improvement in KGT?
N a. 0.68 foot N b. 0.99 foot Y c. 1.16 feet N d. 2.07 feet 4061: In the DEEP DRILLER, TCG is obtained from the sum of the transverse moments by __________.
N a. adding the free surface correction N b. subtracting the free surface correction N c. multiplying by displacement Y d. dividing by displacement 4081: Visual inspections of survival craft on offshore drilling units, to ensure operational readiness, must be conducted at least once a __________.
Y a. week N b. month N c. quarter N d. year 4126: Using sheet 25 in the Guidance Manual for Loading 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. 1045 tons each Y d. 1070 tons each 4227: What is the maximum weight that can be placed in the setback area on the COASTAL DRILLER?
N a. 1000 kips N b. 750 kips Y c. 450 kips N d. 375 kips 4483: The COASTAL DRILLER has a trim of 2.13 feet by the stern. The draft in sea water at the forward draft marks is observed to be 8.0 feet. The KML is __________.
Y a. 286.27 feet N b. 299.09 feet N c. 316.67 feet N d. 355.42 feet 5092: You are scheduled to load 3200 tons of cargo, 45 tons of crew effects and stores and 259 tons of fuel. Use the blue pages of the Stability Data Reference Book to determine the vessel's mean draft in fresh water:
N a. 17'-00" Y b. 16'-09" N c. 16'-06" N d. 16'-04" 5223: When floating, the appropriate leg horizontal must be aligned in the center of the __________.
N a. center of each lower hull guide Y b. center of each upper guide structure N c. top of the jack house N d. bottom of the hull 5386: Which toxic gas is a product of incomplete combustion, and is often present when a fire burns in a closed compartment?
N a. Carbon dioxide Y b. Carbon monoxide N c. Nitric oxide N d. Hydrogen sulfide 5387: Which toxic gas is a product of incomplete combustion, and is often present when a fire burns in a closed compartment?
N a. Nitric oxide N b. Carbon dioxide N c. Hydrogen sulfide Y d. Carbon monoxide 5413: The COASTAL DRILLER is loaded as shown in the Sample Load Form #2 (Preload). What would be the TCG if the preload is dumped and the cantilever and drill floor are skidded aft, placing the rotary 34 feet aft of the transom, and the drill floor is skidded 8 feet to port?
N a. -0.52 foot Y b. -0.33 foot N c. -0.17 foot N d. 0.52 foot 5574: The SS AMERICAN MARINER is ready to sail with the load shown. Use the white pages of The Stability Data Reference Book to determine the available GM. ST-0181
Y a. Available GM 2.8 ft N b. Available GM 3.2 ft N c. Available GM 3.5 ft N d. Available GM 3.8 ft 5755: Why are symmetric mooring patterns frequently used to keep MODU's on station?
N a. All lines contribute to the holding power of the mooring system. Y b. Environmental forces will probably vary in direction during the time the MODU is on station. N c. Environmental forces will probably come from the same direction during the time the MODU is on station. N d. Governmental regulations require this mooring pattern unless an exemption is issued. 5934: You are wearing a breathing apparatus inside a tank. How many tugs on the lifeline should you give to indicate that you need help?
N a. 1 N b. 2 N c. 3 Y d. 4 5955: After using a CO2 extinguisher on a MODU, it should be __________.
N a. put back in service if some CO2 remains N b. hydrostatically tested N c. retagged Y d. recharged 7061: The primary concern in aiding a back injury patient is __________.
N a. relieving the patient's pain by giving aspirin or stronger medication Y b. avoiding possible injury to the spinal cord by incorrect handling N c. preventing convulsions and muscle spasms caused by the pain N d. providing enough fluids to prevent dehydration 7725: Reserve buoyancy is the __________.
N a. unoccupied space below the waterline Y b. volume of intact space above the waterline N c. excess of the buoyant force over the gravity force N d. difference in the buoyant force in salt and fresh waters 8288: What is NOT used as a stern tube bearing, on a large vessel?
N a. Wooden (lignum vitae) strips N b. Hard rubber N c. Resin bonded composition Y d. Bronze bushings 8392: You are preparing for what promises to be a rough ocean passage. Your 120-foot schooner carries a yard on the foremast about 50 feet above the water. The yard weighs about 1000 pounds. If you take the yard down and stow it on deck for the trip, you will __________.
N a. decrease the GM N b. give the vessel a gentler roll Y c. increase the metacentric height N d. decrease the reserve buoyancy 8631: What is the new location of the longitudinal center of gravity if 200 short tons are discharged from 30 feet forward of amidships on a MODU with LCG 1.5 feet forward of amidships, and displacement 9,000 short tons?
N a. 0.88 foot forward of amidships Y b. 0.85 foot forward of amidships N c. 0.82 foot forward of amidships N d. 0.79 foot forward of amidships