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.
7: You have been carrying a liquid with flammable limits of 1% to 7% mixture with air. If your instructions say that no one shall enter the tank if the vapor concentration is over 15% of the LEL, what is the maximum allowable percentage of vapors for men to enter?
Y a. .15% N b. .85% N c. 1.05% N d. 7.00% 143: You have abandoned ship in tropical waters. Which procedure(s) should be used during a prolonged period in a raft?
N a. Wet clothes during the day to decrease perspiration. N b. Get plenty of rest. N c. Keep the entrance curtains open. Y d. All of the above 245: Storage batteries should be charged in a well ventilated area because __________.
N a. they generate heat Y b. they emit hydrogen N c. of the toxic fumes they emit N d. they recharge faster in a well ventilated space 281: The gross weight of a fully charged CO2 bottle in a fixed CO2 system is 220 lbs. When the bottle is empty it weighs 120 lbs. What is the minimum acceptable gross weight of the CO2 bottle before it should be recharged by the manufacturer?
N a. 200 lbs N b. 205 lbs Y c. 210 lbs N d. 220 lbs 491: Before starting to hoist provisions, which should be checked?
N a. Hoist rope is not kinked N b. Multiple part lines are not twisted around each other N c. The hook is centrally located over the load Y d. All of the above 538: A victim is coughing and wheezing from a partial obstruction of the airway. An observer should __________.
N a. perform the Heimlich maneuver N b. immediately start CPR N c. give back blows and something to drink Y d. allow the person to continue coughing and dislodge the obstruction on his own 871: The bilge pump on a fishing vessel __________.
Y a. must be fixed if the vessel exceeds 12 meters in length N b. may be used as a fire pump N c. must be portable if there are more than 4 watertight compartments N d. must be capable of pumping at least 450 gpm 911: You are on a supply run to an offshore drilling rig. On board is the cargo listed. What is the height above the main deck of the center of gravity of the cargo? ST-0018
N a. 3.75 feet N b. 3.02 feet Y c. 2.22 feet N d. 0.83 foot 1038: You are piloting a vessel, which is required to have a radiotelephone, on the navigable waters of the United States. You must __________.
N a. maintain a listening watch and communicate in English N b. use the bridge-to-bridge VHF-FM designated frequency only to exchange navigational information or necessary tests N c. have on board an operator who holds a restricted radiotelephone operator permit or higher license, as well as a FCC ship station license Y d. All of the above 1039: On board small passenger vessels, fill lines and sounding pipes of gasoline tanks must extend directly __________.
Y a. to within one-half of their diameter from the bottom of the tank N b. To within one-half foot from the bottom of the tank N c. To the tank top N d. Midway between the top and bottom of the tank 1153: According to 46 CFR Subchapter T, rigid plastic and other nonmetallic piping materials __________.
N a. may replace metal pipe or tubing in any installation N b. may not be used on inspected vessels Y c. may only be used in non-vital systems N d. are preferable to steel pipe 1155: When picking up a lifeboat at sea with way on the ship, the sea painter should be secured __________.
Y a. well forward in the lifeboat N b. about amidships in the lifeboat N c. well aft in the lifeboat N d. only after the falls have been attached 1198: Lead-acid batteries used aboard "T-Boats" must have terminal connections that are __________.
N a. the spring slip style Y b. a permanent type N c. located so as to be easily greased N d. temporarily clamped on the top of the battery 1278: An extinguishing agent which effectively cools, dilutes combustible vapors, removes oxygen, and provides a heat and smoke screen is __________.
N a. carbon dioxide N b. Halon 1301 N c. dry chemical Y d. water fog 1524: A U.S. merchant vessel in ocean service is NOT subject to the requirements of Annex V to MARPOL 73/78 __________.
N a. outside of 25 nautical miles from nearest land N b. outside of the navigable waters of the United States N c. in the waters of those countries not signatory to MARPOL Y d. A U.S. vessel in ocean service is ALWAYS subject to MARPOL. 1620: One disadvantage of using regular dry chemical (sodium bicarbonate) in firefighting is that __________.
N a. it can break down under high heat and emit noxious fumes N b. it will decompose under prolonged storage and lose its effectiveness Y c. fire has been known to flash back over the surface of an oil fire N d. it is ineffective in fighting fires in high-voltage electrical equipment 1776: Which type of vessel shall be required to have an emergency towing arrangement fitted at both ends?
N a. A 30,000 dwt ton oil barge N b. An 18,000 dwt ton tanker constructed in 1998 N c. A 5,000 dwt ton coastal tanker Y d. A 22,000 dwt ton tanker operated after Jan. 1, 1999 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. 1962: You have 200 tons of below deck tonnage. There is no liquid mud aboard. If you have 140 tons of cargo above deck with a VCG above the deck of 4.2 feet, what is the maximum allowed VCG of the remainder of the deck cargo that is permitted? (D036DG )
N a. 0.56 foot N b. 0.87 foot N c. 1.04 feet Y d. 2.44 feet 2055: What agency issues the Ship Station license for the VHF marine radio on a mobile offshore drilling unit?
N a. U.S. Coast Guard N b. Department of Transportation N c. Federal Broadcast Authority Y d. Federal Communications Commission 2190: You have approximately 24 tons of fish on deck. What will be the shift in the center of gravity after you shift the fish to the fish hold, a vertical distance of 8 feet? (total displacement is 540 tons)
N a. 0.14 foot N b. 0.23 foot Y c. 0.36 foot N d. 0.44 foot 2233: You are underway when a fire breaks out in the forward part of your vessel. If possible, you should __________.
N a. call for assistance N b. abandon ship to windward N c. keep going at half speed Y d. put the vessel's stern into the wind 2268: To what chemical family does chlorallylene belong?
N a. Alcohols N b. Esters N c. Glycol ethers Y d. Substituted allyl 2532: The appearance of Bunker C and fuel oils are dark colored liquids, and __________ .
N a. soluble oils N b. slop oils N c. cutting oils Y d. viscous oils 2581: A continuous watertight bulkhead on a MODU is normally also a(n) __________.
Y a. structural bulkhead N b. exterior bulkhead N c. centerline bulkhead N d. joiner bulkhead 2701: Compared to internal structural plating, the exterior hull plating on a MODU is usually __________.
Y a. stronger N b. thinner N c. more corrosion resistant N d. a lower grade steel 2773: The required portable radio apparatus on an international voyage must be stowed in __________.
N a. the Master's quarters N b. the ship's office Y c. the radio room, bridge, or protected location N d. an unlocked cabinet next to the Muster List ("Station Bill") 3002: A vessels Certificate of Inspection will show the __________. (small passenger vessel regulations)
N a. crew requirements N b. minimum fire fighting and lifesaving equipment N c. route permitted Y d. All of the above 3011: A semisubmersible which will not remain upright and will assume a list either to port or starboard is likely to have __________.
N a. a large TCG Y b. a negative GM N c. excessive ballast N d. insufficient deck load 3199: You are towing a 1,000 GT gasoline tank barge which is not gas free. By regulation, cargo tank hatches, ullage holes, and Butterworth plates on the barge may __________.
N a. not be open without flame screens under any circumstances N b. be open without flame screens in good weather from 16 May to 15 September N c. be open without flame screens when the barge is empty Y d. be open without flame screens under the supervision of the senior crew member on duty 3232: Which statement is TRUE concerning work vests aboard a vessel? (Uninspected Vessel Regulations)
N a. They may be worn during drills. N b. They may be substituted for up to 10% of the required lifesaving gear aboard. N c. They need not be of an approved type. Y d. They must be stowed separately from approved life preservers. 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 3465: The free surface effects of a partially full liquid tank decrease with increased __________.
N a. density of the liquid N b. placement of the tank above the keel Y c. displacement volume of the vessel N d. size of the surface area in the tank 3596: The light on a life jacket must be replaced __________.
N a. when the power source is replaced N b. each year after installation N c. every six months Y d. when it is no longer serviceable 3621: The DEEP DRILLER is moored in 700 feet of water. The average tension on the mooring lines is 200 kips. What is the total vertical component of chain tension?
N a. 60.9 long tons N b. 472.8 long tons Y c. 487.2 long tons N d. 714.4 long tons 3880: The Emergency Position Indicating Radio beacon on an OSV vessel must be stowed __________.
N a. in an inside passageway N b. in an approved bracket N c. so that it is accessible from the pilothouse of the vessel Y d. so that it will float free if the vessel sinks 3930: You have abandoned your vessel. You are in a liferaft and have cleared away from your vessel. One of your FIRST actions should be to __________.
N a. take measures to maintain morale N b. prepare and use radio equipment N c. identify the person in charge of liferaft Y d. search for survivors 3942: You have abandoned ship in tropical waters. Which procedure(s) should be used during a prolonged period in a raft?
N a. Wet clothes during the day to decrease perspiration. N b. Get plenty of rest. N c. Keep the entrance curtains open. Y d. All of the above 3958: If there's a fire aboard your vessel, you should FIRST __________.
N a. notify the Coast Guard N b. have passengers put on life preservers Y c. sound the alarm N d. cut off air supply to the fire 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 4006: The SS AMERICAN MARINER arrived in port with drafts of: FWD 18'-06", AFT 20'-10". Cargo was loaded and discharged as indicated. Use sheet 2 in the white pages of the Stability Data Reference Book to determine the final drafts. ST-0152
N a. FWD 18'-11", AFT 20'-02" N b. FWD 19'-01", AFT 20'-00" N c. FWD 19'-03", AFT 19'-10" Y d. FWD 19'-05", AFT 19'-08" 4192: Alterations or repairs on inspected small passenger vessels must be done __________.
N a. under the direction of the Officer in Charge, Marine Inspection N b. in accordance with the regulations of Subchapter "S" (Subdivision and Stability) N c. in accordance with regulations in effect when the vessel was contracted for, as long as the repairs are minor Y d. All of the above 4347: In using the Allowable Wind and Wave Charts for the COASTAL DRILLER, leg penetration is assumed to be less than __________.
N a. 55 feet N b. 45 feet N c. 35 feet Y d. 25 feet 4741: 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. What is the weight of the missing load?
N a. 46 kips N b. 84 kips N c. 189 kips Y d. 217 kips 4753: Because there is a possibility of fuel oil being discharged overboard from a full fuel oil tank, it is decided to transfer 25 kips from tank #14 to tank #13. See COASTAL DRILLER Sample Load Form #1 (Rig Move). What would be the change in transverse moments with this transfer?
N a. 56 ft-kips N b. 979 ft-kips N c. 1035 ft-kips Y d. 2010 ft-kips 5124: The SS AMERICAN MARINER is ready to bunker with drafts of FWD 14'-04", AFT 18'-08". 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-0173
Y a. 1.05 feet N b. 1.15 feet N c. 1.25 feet N d. 1.31 feet 5495: Extended cyclical variations in tensions will cause an anchor chain to break due to __________.
Y a. fatigue N b. corrosion N c. distortion N d. abrasion 5845: Yawing can be described as __________.
N a. jumping on the tow line as the rig pitches N b. jumping on the tow line as the rig slams into waves Y c. veering from side to side on the end of the tow line N d. corkscrew motion due to wave action 6011: On a MODU, hand portable extinguishers are size(s) __________.
N a. II only N b. II and III Y c. I and II N d. I only 6306: An inflatable liferaft is thrown into the water from a sinking vessel. What occurs automatically after the painter trips the CO2 bottles to inflate the raft?
Y a. The sea anchor deploys. N b. The floor inflates. N c. If upside down, the craft rights itself. N d. The painter detaches from the raft. 6965: In the case of a casualty involving a MODU, the Master, owner, agent or person in charge shall make the records required by regulation available upon request to __________.
N a. anyone involved in the casualty Y b. any Coast Guard official authorized to investigate the casualty N c. the local Captain of the Port N d. All of the above 7056: Your drafts are: FWD 23'-03", AFT 27'-01". Use the blue pages of the Stability Data Reference Book to determine the vessels displacement if you are in fresh water.
N a. 12,550 tons Y b. 12,900 tons N c. 13,200 tons N d. 13,350 tons 7113: Fire extinguishers used on MODU's are numbered by size I through V, with I being __________.
N a. used for electrical fires only Y b. the smallest N c. the most accessible N d. the most effective 7625: The original equilibrium position is always unstable when __________.
Y a. metacentric height is negative N b. KM is higher than KG N c. KG exceeds maximum allowable limits N d. free surfaces are excessive 8075: A semisubmersible is more likely to experience structural stresses during heavy weather when __________.
N a. operating at drilling draft N b. deballasting to survival draft N c. when at survival draft Y d. when at transit draft 8156: Category 1 EPIRBs are required to be carried on board __________.
N a. small passenger vessels on the Great Lakes N b. all deep draft vessels Y c. fishing industry vessels N d. small passenger vessels 8343: The probability of sulfide stress cracking in the presence of hydrogen sulfide is greatest for __________.
N a. low strength steel Y b. high strength steel N c. rubber sealing elements N d. aluminum 8755: While elevated, the COASTAL DRILLER prepares for a severe storm. When the setback is lowered and placed in the pipe racks, it is considered as part of the __________.
N a. fixed loads N b. basic loads Y c. variable loads N d. storm loads 8875: The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). Excessive motion makes it necessary to ballast down to survival draft. It is decided to check the stability at the intermediate draft of 32 feet. If the added ballast has an average VCG of 9.03 feet, and the sum of free surface moments is 56,244 foot-tons, what is the new margin on the maximum allowable KG?
N a. 6.23 feet N b. 5.11 feet N c. 4.86 feet Y d. 4.06 feet 9335: The disadvantage of using CO2 is that the __________.
Y a. CO2 does not cool the fire N b. cylinders are regulated pressure vessels N c. C02 is not effective on class "B" fires N d. C02 is not effective on class "C" fires