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.
57: The minimum concentration of a vapor in air which can form an explosive mixture is called the __________.
N a. auto-ignition point N b. flash point Y c. lower explosive limit (LEL) N d. threshold limit value (TLV) 222: On surface type offshore drilling units, each survival craft must be capable of being launched to the water at the minimum operating draft, under unfavorable conditions of trim and with the unit listed not less than __________.
N a. 14° Y b. 20° N c. 26° N d. 32° 241: The signal L1210 means the __________.
Y a. latitude is 12°10' N b. longitude is 12°10' N c. GMT is 1210 N d. zone time is 1210 358: When treating a person for third-degree burns, you should __________.
N a. submerge the burn area in cold water N b. make the person stand up and walk to increase circulation Y c. cover the burns with thick, sterile dressings N d. break blisters and remove dead tissue 394: If you are transmitting a distress message by radiotelephone you should __________.
Y a. use English language N b. always use the International Code N c. preface it by the word "Interco" N d. follow the transmission with the radio alarm signal 513: Number 3 lifeboat would be __________.
N a. the forward boat on the starboard side N b. behind boat number 1 on the port side Y c. behind boat number 1 on the starboard side N d. behind boat number 2 on the port side 693: You are operating a fire hose with an applicator attached. If you put the handle of the nozzle in the vertical position you will __________.
N a. produce high-velocity fog Y b. produce low-velocity fog N c. produce a straight stream N d. shut off the water 907: An advantage of a dry chemical over a carbon dioxide fire extinguisher is its __________.
Y a. greater range N b. effectiveness on all types of fires N c. cleanliness N d. All of the above 927: The extinguishing agent most effective for combating wood fires is __________.
Y a. water N b. carbon dioxide N c. foam N d. dry chemical 968: Which condition is necessary for a substance to burn?
N a. The temperature of the substance must be equal to or above its fire point. N b. The air must contain oxygen in sufficient quantity. N c. The mixture of vapors with air must be within the "explosive range." Y d. All of the above 1168: What is the maximum oxygen content below which flaming combustion will no longer occur?
N a. 1% N b. 10% Y c. 15% N d. 21% 1258: On a bulk chemical carrier, water should NOT be used as an extinguishing agent to fight a fire if the water may come into contact with the chemical called __________.
N a. acrylic acid N b. benzene Y c. oleum N d. vinyl toluene 1347: A quick and rapid motion of a vessel in a seaway is an indication of a(n) __________.
Y a. large GM N b. high center of gravity N c. excessive free surface N d. small GZ 1392: Except in rare cases, it is impossible to extinguish a shipboard fire by __________.
N a. removing the heat N b. removing the oxygen Y c. removing the fuel N d. interrupting the chain reaction 1445: When instructing a crew member concerning the right way to lift a weight, you would instruct him to __________.
N a. arch the back to add strength to the muscles Y b. bend his knees and lift with his legs N c. bend his back and stoop N d. bend his back and stoop with arms straight 1662: By regulation, your cargo vessel must have __________.
Y a. sufficient facilities for the crew to wash their clothes N b. a wash basin in each room N c. separate toilet facilities for engineers where their number exceeds six N d. All of the above 1695: In order to prevent galvanic corrosion, an aluminum boat must be insulated from the davits and gripes. Which of the following is acceptable as an insulator?
Y a. Hard rubber N b. Canvas N c. Leather N d. Sponge rubber 1763: You are operating a liftboat. When jacking down and a leg becomes stuck on the bottom, you should __________.
N a. raise the free legs all the way N b. use the engines to rotate about the leg that is stuck Y c. jack the barge down part way to pull the leg free N d. submerge the barge completely to give added pull 1825: Each drilling unit equipped with helicopter fuel storage tanks must have the tanks installed as far as practicable from the __________.
Y a. landing area and sources of vapor ignition N b. main deck N c. engine room N d. drill floor 1860: You are underway at sea when a fire is reported in the forward part of the vessel. The wind is from dead ahead at 20 knots. You should __________.
N a. remain on course and hold speed N b. change course to put the wind on either beam and increase speed Y c. change course and put the stern to the wind N d. remain on course but decrease speed 1894: The liquid mud tanks on your vessel measure 24'L by 16'B by 8'D. The vessel's displacement in salt water (specific gravity 1.025) is 864 T and the specific gravity of the mud is 1.47. What is the reduction in GM due to 2 of these tanks being slack?
N a. 0.32 foot Y b. 0.78 foot N c. 0.96 foot N d. 1.12 feet 1896: The edge of the sail labeled "A" is called the __________. (D001SL )
N a. leech N b. clew Y c. luff N d. headboard 1965: Which statement concerning exposure to microwave signal radiation is TRUE?
N a. There is minimal hazard potential as long as the Operator notifies other system users aboard the vessel that the potential exists. Y b. The INMARSAT-B ray dome normally prevents nearby persons from being able to determine the direction of the internal antenna. N c. There is equally significant hazard potential from all INMARSAT antenna systems. N d. FCC type acceptance regulations require that radiated power be kept to a minimum so as to prevent hazard potential. 2036: Which system provides maximum communications range?
N a. MF SITOR Y b. INMARSAT N c. Digital Selective Calling on 8414.5KHz N d. VHF ARQ 2423: A large valve, usually installed above the ram preventers, that forms a seal in the annular space between the pipe and wellbore or, if no pipe is present, on the wellbore itself is called the __________.
Y a. annular blowout preventer N b. annulus N c. accumulator N d. automatic choke 2609: Which action should the GMDSS radio operator take in a distress situation when embarking in survival craft?
Y a. Switch on EPIRB and SART immediately and leave on. N b. Switch on EPIRB and SART manually prior to launching and remain aboard vessel in distress. N c. Notify RCC (Rescue Coordination Center) through VHF DSC with portable equipment. N d. Communicate via Inmarsat-C from the survival craft. 2652: Which vessel is required to carry an efficient daylight signaling lamp? (Uninspected Vessel Regulations)
N a. 99 GT towing vessel on Inland Waters N b. 199 GT towing vessel on a coastwise voyage N c. 299 GT towing vessel on a coastwise voyage Y d. 199 GT towing vessel on an international voyage 2680: You are loading benzyl chloride and a small quantity spills on deck. According to the Chemical Data Guide, which of the following may be used as a substitute for water for the cleanup procedure?
N a. Alcohol N b. Sodium bisulfite Y c. Sodium carbonate N d. Soda ash solution 2681: You are offloading garbage to another ship. Your records must identify that ship by name and show her __________.
Y a. official number N b. home port N c. Master N d. next port-of-call 2853: What can be used to measure the percentage of oxygen inside a confined space?
N a. Flame safety lamp N b. Combustible gas indicator Y c. Oxygen indicator N d. H2S meter 2951: A jack-up displacing 350,000 cubic feet while floating in sea water (64 pounds per cubic foot) weighs __________.
N a. 10,000 kips N b. 18,169 kips N c. 21,841 kips Y d. 22,400 kips 3111: For a MODU with list, an increase in GMT will cause the inclination to __________.
N a. stabilize at an angle of loll Y b. decrease N c. increase N d. remain constant 3259: Why is a warning sign displayed at the gangway or access point of a barge during cargo transfer?
N a. To keep visitors away from the barge N b. To prohibit smoking N c. To prohibit open lights Y d. All of the above 3281: Preparing to move on a location, you find that you must remove 450 tons of drill water, with a VCG of 8 feet, to enable you to meet the draft limitations. You started with a displacement of 17,000 tons and a KG of 69 feet. What is the KG after pumping out the drill water?
N a. 49.13 feet N b. 59.13 feet N c. 69.13 feet Y d. 70.66 feet 3535: The marine riser on the DEEP DRILLER should be disconnected if it appears the ball joint angle will exceed 10° or the mooring line tensions will exceed __________.
N a. 348 kips N b. 500 kips Y c. 522 kips N d. 600 kips 3615: The DEEP DRILLER is moored in 700 feet of water. The tension on anchor line #3 is 200 kips. What is the vertical component of chain tension for that line?
N a. 59.1 long tons Y b. 60.9 long tons N c. 89.3 long tons N d. 487.2 long tons 3918: If your liferaft is to leeward of a fire on the water, you should FIRST __________.
Y a. cut the line to the sea anchor N b. paddle away from the fire N c. splash water over the liferaft to cool it N d. get out of the raft and swim to safety 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 4122: Under normal firefighting conditions, approximately how far could a straight stream of water reach when the hose pressure is 100 PSI?
N a. 50 feet Y b. 100 feet N c. 150 feet N d. 200 feet 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 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 5068: The SS AMERICAN MARINER is ready to bunker with drafts of FWD 19'-00", AFT 24'-00". 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-0171
N a. 0.62 foot N b. 0.80 foot Y c. 0.85 foot N d. 0.99 foot 5511: When inspecting anchor chain, the American Petroleum Institute recommends checking the length over 5 links every __________.
N a. 10 feet Y b. 100 feet N c. 250 feet N d. 500 feet 5743: The safest device used to secure the end of the pendant wire when it is initially passed to the anchor handling vessel is a __________.
N a. pelican hook Y b. hydraulic deck stopper N c. connecting link N d. shackle 5771: A J-chaser is used to __________.
N a. transfer a pennant wire to the anchor handling vessel N b. clean chain as it is hauled into the rig N c. lower spring buoys into the water Y d. retrieve an anchor after the buoy has been lost 6033: During a fire drill on a MODU, what action is required?
Y a. Start each fire pump N b. Launch and run a lifeboat N c. Inventory rescue and fire equipment N d. Inspect fire hoses 6426: Your drafts are: FWD 21'-03", AFT 26'-00". Use the blue pages of the Stability Data Reference Book to determine the location of the center of flotation relative to amidships.
Y a. 2.8 feet forward N b. 2.1 feet forward N c. 1.6 feet forward N d. 1.9 feet aft 6583: When weight-testing a davit-launched liferaft on a mobile offshore drilling unit, the test weight must be equivalent to the weight of the raft, its required equipment, and __________.
N a. 90% of the allowed capacity of persons for the raft Y b. 100% of the allowed capacity of the persons for the raft N c. 110% of the allowed capacity of the persons for the raft N d. 120% of the allowed capacity of the persons for the raft 6604: Fusible-link fire dampers are operated by __________.
Y a. the heat of a fire melting the link N b. a break-glass and pull-cable system N c. electrical controls on the bridge N d. a mechanical arm outside the vent duct 6813: The Master or person in charge of a mobile offshore drilling unit shall ensure the crane record book shows __________.
N a. the name of the operator Y b. the American Petroleum Institute name plate data N c. the average load in pounds each usage N d. All of the above 6931: A report of casualty to a mobile offshore drilling unit must include __________.
N a. the estimated cost of damage to the unit N b. an evaluation of who was at fault N c. the amount of ballast on board Y d. the name of the owner or agent of the unit 8054: A thrust block is designed to __________.
N a. transmit the thrust of the engine to the propeller Y b. transmit the thrust of the propeller to the vessel N c. absorb the shock of wave pressure at the bow N d. be placed between the engines and the foundation to absorb the vibration 8311: High concentrations of H2S gas are most dangerous to personnel because they can __________.
N a. cause involuntary muscle contractions Y b. paralyze your breathing system N c. cause eye inflammation N d. cause dizziness 8917: The DEEP DRILLER is loaded as shown in Sample Load Form #4 (Drilling). While the unit is deballasting, starboard valve 17 fails in the closed position. You may deballast from tank 8S by pumping from tank 9S and opening valves 18 and __________.
N a. 35 N b. 21 Y c. 20 N d. 17 9187: The external flotation bladder on an immersion suit should be inflated __________.
N a. before you enter the water Y b. after you enter the water N c. after one hour in the water N d. after you notice that your suit is losing buoyancy 9257: The shear rams of a MODU blowout preventer stack are used in emergency well control to __________.
N a. close and seal around the drill pipe N b. close and seal around casing Y c. cut off pipe inside the preventer stack N d. close and seal around drill collars 9276: You are underway when a fire breaks out in the forward part of your vessel. If possible, you should __________.
N a. call for assistance Y b. put the vessel's stern into the wind N c. abandon ship to windward N d. keep going at half speed 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. 9473: What is the stability term for the distance from the center of gravity (G) to the Metacenter (M), when small-angle stability applies?
Y a. metacentric height N b. metacentric radius N c. height of the metacenter N d. righting arm 9497: Stability is determined principally by the location of the point of application of two forces: the upward-acting buoyant force and the __________.
N a. upward-acting weight force Y b. downward-acting weight force N c. downward-acting buoyant force N d. environmental force