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.
10: What is the definition of transverse metacenter?
N a. The distance between the actual center of gravity and the maximum center of gravity that will still allow a positive stability. Y b. The point to which G may rise and still permit the vessel to possess positive stability. N c. The sum of the center of buoyancy and the center of gravity. N d. The transverse shift of the center of buoyancy as a vessel rolls. 100: When a vessel has positive stability, the distance between the line of force through B and the line of force through G is called the __________.
N a. metacentric height Y b. righting arm N c. righting moment N d. metacentric radius 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 323: You must make a written application to obtain or renew your "T" boat's Certificate of Inspection __________.
N a. on form CG-835 N b. at the shipyard where you are hauled out Y c. on form CG-3752 N d. every time your boat is hauled out 386: On vessels subject to 46 CFR Subchapter T, Certification Expiration Date Stickers __________.
N a. are issued along with a valid Certificate of Inspection (COI) to indicate the date the COI expires N b. must be readily visible to each passenger prior to boarding and to patrolling Coast Guard law enforcement personnel N c. must be placed on glass or other smooth surfaces where they may be removed without damage to the vessel Y d. All of the above 489: An extinguisher with 15 lbs. of CO2 or 10 lbs. of dry chemical is a size __________.
N a. I Y b. II N c. III N d. IV 524: The radiotelephone safety message urgently concerned with safety of a person would be prefixed by the word __________.
N a. Mayday Y b. Pan N c. Safety N d. Interco 695: The Declaration of Inspection made before oil transfer operations must be signed by the __________.
N a. Master of the vessel N b. Captain of the Port Y c. person(s) in charge N d. All of the above 754: "PAN-PAN" repeated three times over the radiotelephone indicates which type of message will follow?
N a. Distress N b. Safety N c. All clear Y d. Urgency 765: Hoses used for cargo transfer operations must be tested and inspected at specified intervals by __________.
N a. a representative of the Captain of the Port Y b. the operator of the vessel or facility N c. a representative of the National Cargo Bureau N d. a representative of the American Bureau of Shipping 843: The signal given to commence lowering the lifeboats is __________.
N a. 3 short blasts of the ship's whistle Y b. specified on the muster list (station bill) N c. 3 long blasts of the ship's whistle N d. 1 long blast of the ship's whistle 891: On small passenger vessels, cooling water for the exhaust lines from an internal combustion engine must be __________.
Y a. obtained from the engine's cooling water system or from a separate engine-driven pump N b. chemically treated to prevent corrosion N c. flushed and changed periodically N d. obtained from a fresh water storage tank or an expansion tank 899: EXCEPT when suffering from a head or chest injury a patient in shock should be placed in which position?
N a. Head up and feet down Y b. Head down and feet up N c. Flat on back with head and feet elevated N d. Arms above the head 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 958: Which substance might be subject to spontaneous combustion?
N a. Coal N b. Scrap rubber N c. Leather Y d. All of the above 1002: How do you operate a portable CO2 fire extinguisher?
N a. Point the horn down. N b. Turn cylinder upside-down. N c. Break the rupture disc. Y d. Pull pin, squeeze grip. 1093: On small passenger vessels, which device(s) must be fitted to a fuel line's tank connection?
N a. A fuel strainer Y b. A shut-off valve N c. A tubular glass gauge to indicate the fuel level N d. All of the above 1101: A crew member has suffered frostbite to the toes of the right foot. Which is NOT an acceptable first aid measure?
Y a. Rub the toes briskly. N b. Elevate the foot slightly. N c. Rewarm rapidly. N d. Give aspirin or other medication for pain if necessary. 1218: To safely enter a compartment where CO2 has been released from a fixed extinguishing system, you should __________.
N a. wear a canister type gas mask N b. test the air with an Orsat apparatus N c. test the air with a pure air indicator Y d. wear a self-contained breathing apparatus 1279: On a documented small passenger vessel, what information must be permanently affixed in block-type letters and/or numerals to the main beam or other clearly visible interior structural part of the hull?
N a. The vessel's name and gross tonnage Y b. The vessel's official number N c. Draft markings N d. The vessel's name and home port 1385: An inflatable liferaft is hand-launched by __________.
N a. pulling a cord N b. cutting the wire restraining bands N c. removing the rubber packing strip Y d. throwing the entire container overboard 1568: The SS AMERICAN MARINER is ready to load the cargo listed. There is already 2464 tons of cargo on board with a KG of 27.3 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-0042
N a. KG 27.0 feet N b. KG 27.8 feet Y c. KG 28.6 feet N d. KG 29.8 feet 1947: INTERNATIONAL AND INLAND Your 18-meter vessel is under sail at night displaying sidelights, stern light, and a red light over a green light at the masthead. If you start the auxiliary engine and engage the propeller, you must_______.
N a. turn your stern light off N b. show two green lights instead of a red and green at the masthead N c. display a white light in sufficient time to prevent collision Y d. turn off the red over green, turn on the white masthead light 2076: A cargo tank that is initially gas freed, can be inerted by introducing inert gas by a process known as __________.
N a. dilution N b. displacement N c. precipitation Y d. Either A or B 2124: Use the material in Section 1, the blue pages, of the Stability Data Reference Book. If the KG is 25.8 feet, and the drafts are: FWD 15'-02", AFT 15'-10"; at what angle will the vessel lose positive stability?
Y a. 73° N b. 79° N c. 87° N d. 98° 2223: Knowing the compass heading that is 90° to the side of a MODU will enable the operator of a survival craft to initially steer __________.
N a. into the wind Y b. away in fire and smoke N c. directly to the standby boat N d. directly to the nearest land 2415: 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-0062
Y a. 1171.5 tons N b. 1311.0 tons N c. 1503.0 tons N d. 1710.5 tons 2426: Your vessel's drafts are: FWD 17'-05", AFT 20'-01"; and the KG is 22.4 feet. What is the righting moment when the vessel is inclined to 15°? (Use the reference material in Section 1, the blue pages, of the Stability Data Reference Book)
Y a. 10,656 foot-tons N b. 12,340 foot-tons N c. 13,980 foot-tons N d. 17,520 foot-tons 2647: Which statement concerning GMDSS Radio Operator requirements is FALSE?
N a. Each compulsory vessel must carry at least two licensed GMDSS Radio Operators at all times while at sea. N b. Each compulsory vessel must carry at least two licensed GMDSS Radio Operators at all times while at sea and may elect to carry a GMDSS Radio Maintainer as well. Y c. Communications involving safety of life at sea do not have to be logged as long as the compulsory vessel was not involved in such communications. N d. While at sea, adjustments to, and the maintaining of, GMDSS equipment may be performed by the GMDSS Radio Operator as long as the work is supervised by an onboard licensed GMDSS Radio Maintainer. 2740: The SS AMERICAN MARINER arrived in port with drafts of: FWD 19'-06.6", AFT 20'-05.6". Cargo was loaded and discharged as shown. Use sheet 2 in the white pages of The Stability Data Reference book to determine the final drafts. ST-0079
Y a. FWD 20'-06", AFT 21'-02" N b. FWD 18'-06", AFT 19'-09" N c. FWD 18'-10", AFT 20'-05" N d. FWD 20'-03", AFT 21'-05" 2785: The intact volume above the waterline of a floating MODU is __________.
N a. displacement volume Y b. reserve buoyancy N c. gross tonnage N d. net tonnage 2852: You are fighting a fire in a watertight compartment using hoses and river water. Stability may be reduced because of __________.
N a. progressive downflooding N b. reduction of water in the storage tanks Y c. increase in free surface which reduces the metacentric height N d. reduction of KG to the minimum allowable 2860: If a vessel loads 250 tons of deck cargo resulting in a GM of -0.3 foot on 8000 tons displacement, what will be the angle of loll? (Use the information in Section 1, the blue pages, of the Stability Data Reference Book)
N a. 16° N b. 13° Y c. 10° N d. 7° 2875: The symbol 5 as shown represents __________. (D041DG )
N a. displacement N b. leverage center Y c. centerline N d. counterflood limits 2932: What is FALSE concerning the use of unicellular plastic foam work vests on small passenger vessels? (small passenger vessel regulations)
Y a. They may be substituted for up to 50% of the required life jackets. N b. They shall be of an approved type. N c. They shall be stowed separately from required lifesaving equipment. N d. They may be worn by crew members when working near or over the water. 2936: A vessel's drafts are: FWD 16'-03", AFT 16'-09"; and the KG is 21.3 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the angle of list if the center of gravity is shifted 2 feet off the centerline.
N a. 12° N b. 14° Y c. 20° N d. 22° 2948: Licenses are issued for __________.
N a. 3 years Y b. 5 years N c. 1 year N d. 2 years 3018: Each life float on an inspected vessel shall be fitted and equipped with __________. (small passenger vessel regulations)
N a. a lifeline, a painter, and one paddle N b. a lifeline, a painter, and a water light N c. two paddles, a light, and a lifeline Y d. two paddles, a light, a lifeline, a painter and pendants 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 3162: All life jackets and life buoys shall be marked with the vessel's name in letters at least __________. (small passenger vessel regulations)
N a. 1/2 inch high N b. 1 inch high Y c. Height not specified N d. 1-1/2 inches high 3324: How should cargo tank hatches be protected when the ullage opening is open and the tank NOT gas free?
N a. With gooseneck vents N b. With warning signs Y c. With flame screens N d. With pressure-vacuum relief valves 3409: To launch a liferaft by hand, you should __________.
N a. cut the casing bands, throw the raft over the side and it will inflate by itself N b. detach the operating cord, throw the liferaft over the side and it will then inflate N c. cut the casing bands, throw the raft over the side and pull the operating cord Y d. throw the liferaft over the side and pull the operating cord 3449: How many ring life buoys should a 700 foot cargo vessel, not subject to SOLAS, navigating the Great Lakes carry?
N a. 12 Y b. 14 N c. 18 N d. 24 3511: The lightweight transverse moments for the DEEP DRILLER are __________.
N a. 680,914 ft-long tons N b. 9,733 ft-long tons Y c. -5,937 ft-long tons N d. 000 ft-long tons 3531: The draft of the DEEP DRILLER in the lightweight condition is __________.
Y a. 16.19 feet N b. 17.71 feet N c. 17.96 feet N d. 18.35 feet 3554: You are underway in mid-ocean, when you hear a distress message over the VHF radio. The position of the sender is 20 miles away. What action should you take?
Y a. Immediately acknowledge receipt of the distress message. N b. Defer acknowledgment for a short interval so that a coast station may acknowledge receipt. N c. Do not acknowledge receipt until other ships nearer to the distress have acknowledged. N d. Do not acknowledge because you are too far away to take action. 3664: The SS AMERICAN MARINER has drafts of: FWD 29'-04", AFT 30'-06". Use the white pages of the Stability Data Reference Book to determine the drafts if you ballast the forepeak with 101.6 tons of seawater.
N a. FWD 29'-04.5", AFT 30'-07.5" N b. FWD 29'-07.6", AFT 30'-05.0" N c. FWD 29'-04.5", AFT 30'-10.0" Y d. FWD 30'-00.8", AFT 30'-01.0" 4200: A vessel has a maximum allowable draft of 28 feet in salt water and a fresh water allowance of 8 inches. At the loading berth, the water density is 1.011. To what draft can she load in order to be at her marks when she reaches the sea? (The salt water density is 1.025.)
N a. 27' 07.5" N b. 27' 08.5" N c. 28' 03.5" Y d. 28' 04.5" 4241: The COASTAL DRILLER is elevated in 250 feet of water, experiencing 2 knots current and 70 knot winds. With a maximum leg reaction of 5,760 kips, the maximum wave height for drilling is __________.
N a. 15 feet Y b. 20 feet N c. 25 feet N d. 30 feet 4257: Considering the lightweight changes to the COASTAL DRILLER, what is the maximum permitted hook load permitted when 450 kips are in the setback and 200 kips are in the cantilever pipe rack?
N a. 350 kips Y b. 529 kips N c. 550 kips N d. 750 kips 4335: The COASTAL DRILLER is experiencing a single amplitude roll angle of 1 degree and a roll period of 7 seconds. What is the maximum recommended water depth for elevating?
N a. 50 feet N b. 100 feet Y c. 150 feet N d. 200 feet 5103: A hurricane has recurved to the northeast and its forward speed is 20 knots. Your MODU is located 600 miles northeast of the hurricane's center. How long will it take for the hurricane center to reach your position if it holds its present course and speed?
N a. 10 hours Y b. 30 hours N c. 50 hours N d. 80 hours 5708: On a vessel of 6500 tons displacement, a tank 30 ft. long, 32 ft. wide and 18 ft. deep is half filled with liquid cargo (S.G. 1.048) while the vessel is floating in saltwater (S.G. 1.026). What is the free surface constant for this tank?
N a. 1152 N b. 1336 Y c. 2390 N d. 2731 5795: What is the length of the catenary when the DEEP DRILLER is anchored in 600 feet of water and the anchor line tension is 170 kips?
N a. 891 feet N b. 1348 feet Y c. 1493 feet N d. 1657 feet 5936: 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-0188
N a. Available GM 4.1 ft Y b. Available GM 4.3 ft N c. Available GM 4.7 ft N d. Available GM 5.1 ft 6537: When pumping fuel between an offshore supply vessel (OSV) and a MODU, there must be direct VHF radio contact between the offshore supply vessel engineer and the __________.
Y a. person in charge of the fuel transfer N b. crane operator N c. ballast control operator N d. barge superintendent 6684: The SS AMERICAN MARINER has drafts of: FWD 19'-04", AFT 21'-02". Use the white pages of the Stability Data Reference Book to determine the drafts if you ballast the forepeak with 68 tons of seawater.
N a. FWD 19'-09.7", AFT 20'-10.0" Y b. FWD 19'-11.1", AFT 20'-09.4" N c. FWD 19'-11.7", AFT 20'-08.8" N d. FWD 20'-00.3", AFT 20'-08.2" 7613: GM cannot be used as an indicator of stability at all angles of inclination because __________.
Y a. M is not fixed at large angles N b. there is no M at large angles N c. G is not fixed at large angles N d. there is no G at large angles 8551: On offshore drilling units, each fire station is required to be fitted with at least one spanner and at least one __________.
N a. fire axe Y b. hose rack N c. sandbag N d. scupper 9455: The original equilibrium position is stable when __________.
Y a. metacentric height is positive N b. metacentric radius is positive N c. KG exceeds maximum allowable limits N d. free surfaces are excessive