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.
167: One method of controlling rats on vessels is by rat-proofing. Rat-proofing is accomplished by __________.
N a. installing rat guards on the mooring lines when in port N b. keeping foods protected and avoiding the accumulation of garbage Y c. eliminating possible living spaces for rats when the ship is constructed N d. trapping and/or poisoning the rats 200: Which statement is TRUE of a tender vessel?
N a. It has a large GM. Y b. Its period of roll is long. N c. It has a very low center of gravity. N d. It has a good transverse stability. 233: Most enclosed lifeboats will right themselves after capsizing IF the __________.
N a. lower ballast tanks are filled with water N b. fuel tanks are not less than half full Y c. passengers are strapped to their seats N d. sea anchor is deployed to windward 252: What, when removed, will result in the extinguishment of a fire?
N a. Nitrogen N b. Sodium Y c. Oxygen N d. Carbon dioxide 533: What is the purpose of limber holes?
N a. To allow for air circulation N b. To allow for stress and strain in rough waters N c. To allow water in the boat to drain overboard Y d. To allow water in the bilge to get to the boat drain 540: Of the following, the most important consideration for a tank vessel is __________.
N a. GM N b. the vertical center of gravity N c. the longitudinal center of gravity Y d. the stress on the hull 560: On small passenger vessels each inlet or discharge pipe penetrating the hull less than six inches above the deepest load waterline __________.
N a. must have a check valve to prevent water from entering Y b. except for engine exhausts must have a means to prevent water from entering the vessel if the pipe fails N c. must be fitted with a gate valve N d. must be sealed 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 800: The "trimming arm" of a vessel is the horizontal distance between the __________.
N a. LCB and LCF N b. LCF and LCG N c. LHA and LCG Y d. LCB and LCG 1013: If it is impractical to use the fill line to sound the fuel tank, then the tank should be fitted with __________. (Small Passenger Vessel Regulations)
Y a. a separate sounding tube or an installed marine type fuel gauge N b. An extra five gallon tank for reserve fuel N c. A good air vent of sufficient diameter N d. A glass tube to visually observe the fuel 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 1295: If you must land on a beach with an oar-propelled lifeboat through a heavy surf, the recommended method is to __________.
N a. keep the bow directly in toward the beach, and tow the sea anchor off the stern N b. ride in on the back of a large breaker Y c. keep the bow into the seas with the sea anchor out over the bow, and row to meet the breaking waves N d. head directly into the beach by staying between the crests of the waves 1361: What is the minimum diameter allowed for bilge piping on small passenger vessels which are more than 65 feet in length?
N a. 1" Y b. 1-1/2" N c. 2" N d. 2-1/2" 1372: It is necessary to secure the forced ventilation to a compartment where there is a fire to __________.
N a. allow the exhaust fans to remove smoke N b. extinguish the fire by carbon monoxide smothering Y c. prevent additional oxygen from reaching the fire N d. protect fire fighting personnel from smoke 1458: Your vessel displaces 14,500 tons, with a longitudinal CG 247.5 ft. aft of the FP. If you pump 80 tons of ballast from forward to aft through a distance of 480 feet, your new CG will be __________.
N a. 244.85 feet aft of FP N b. 246.22 feet aft of FP N c. 248.87 feet aft of FP Y d. 250.15 feet aft of FP 1525: You are reading the draft marks. The top 2 inches of number "9" are visible above the waterline. What is the draft? (D032DG )
N a. 8'-10" N b. 9'-02" Y c. 9'-04" N d. 9'-08" 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 1740: Tank vessel inerting refers to __________.
N a. the introduction of inert gas into a tank with the object of reducing the oxygen content to below 8% by volume N b. the introduction of inert gas into a gas free tank for the purpose of reducing the oxygen content to below 8% by volume N c. the introduction of inert gas into a cargo tank during cargo discharge to replace the volume of discharged cargo Y d. All of the above 1798: The combined fan discharge rate in an inert gas system is related to the __________.
N a. shoreside loading rate Y b. cargo pump discharge rate N c. boiler forced draft fan rate N d. size of the largest cargo tank 1897: Which is a part of a vessel's standing rigging?
N a. Sheet Y b. Backstay N c. Topping lift N d. Downhaul 1912: Your vessel displaces 640 tons. The existing deck cargo has center of gravity of 2.3 feet above the deck and weighs 18 tons. If you load 12 tons of ground tackle with an estimated center of gravity of 21 inches above the deck, what is the final height of the CG of the deck cargo?
N a. 1.75 feet N b. 1.94 feet Y c. 2.08 feet N d. 2.26 feet 1976: A capsized small sail vessel is best righted when what part of the vessel is downwind?
N a. Stern N b. Bow N c. Centerboard Y d. Mast 2192: Your vessel displaces 689 tons and measures 123'L x 31'B. You ship a large wave on the after deck which measures 65'Lx 31'B. The weight of the water is estimated at 62 tons. What is the reduction in GM due to free surface before the water drains overboard?
N a. 5.51 feet N b. 5.67 feet N c. 5.89 feet Y d. 6.14 feet 2323: Why is electrical power preferred over mechanical power for driving heavy machinery on drilling rigs?
N a. More fuel efficient Y b. More flexible N c. Lighter N d. Less maintenance 2472: Which cargo grade(s) are permitted by regulations to be carried on a barge in tanks fitted only with gooseneck vents and flame screens?
N a. B only N b. B or C N c. C or D Y d. D or E 2488: If a crew member is exposed to phenol by way of skin or eye contact, you should IMMEDIATELY __________.
N a. administer oxygen N b. treat victim for shock Y c. flush skin and eyes with water N d. give victim stimulant 2537: Which statement(s) is(are) TRUE regarding heaving-to?
N a. A sloop will heave to with her jib and mainsail aback. N b. A ketch will heave to with her jib and mizzen aback. Y c. A yawl will heave to with her jib aback, main sheet eased, and her mizzen sheeted in. N d. All of the above are correct. 2774: 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-0080
N a. Available GM 3.8 ft N b. Available GM 3.5 ft Y c. Available GM 3.2 ft N d. Available GM 2.9 ft 2804: Your vessel's drafts are: FWD 19'-09", AFT 20'-09"; and the KG is 24.6 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the remaining righting arm at 15° inclination if the center of gravity is 0.5 foot off the centerline.
Y a. 0.0 feet N b. 0.5 foot N c. 1.2 feet N d. 1.7 feet 2861: What is the minimum number of portable fire extinguishers required on board a 45-foot towing vessel having a fixed fire system on board? (Uninspected Vessel Regulations)
N a. 1 B-I Y b. 2 B-I N c. 3 B-I N d. 4 B-I 2884: The sailing drafts are: FWD 23'-02", AFT 24'-06" and the GM is 2.8 feet. Use the information in Section 1, the blue pages, of the Stability Data Reference Book to determine the available righting arm at 30° inclination.
N a. 1.3 feet Y b. 2.5 feet N c. 3.2 feet N d. 3.7 feet 2890: You have loaded a deck cargo, and the vessel has assumed an 8° list due to negative GM. Your salt water drafts are: FWD 16'-10", AFT 17'-02". If you then load 1050 tons of cargo in the lower holds (VCG 12.5 feet) and 475 tons in the lower 'tween decks (VCG 24.5 feet), what is the final GM? (Use the reference material in Section 1, the blue pages, of the Stability Data Reference Book)
N a. 2.1 feet N b. 1.6 feet N c. 1.4 feet Y d. 0.6 foot 3054: Your sailing drafts are: FWD 22'-04", AFT 23'-06" and the GM is 3.2 feet. What will be the angle of list if #3 starboard double bottom (capacity 97 tons, VCG 2.5 feet and 23 feet off the centerline) is filled with saltwater? (Use the data in Section 1, the blue pages, of the Stability Data Reference Book)
N a. Less than 1° Y b. 3° N c. 7° N d. 11° 3071: The free surface effects of a partially-full tank in a floating MODU increase with the __________.
Y a. surface area of the fluid in the tank N b. displacement volume of the MODU N c. draft of the MODU N d. height of the tank above the keel 3108: A CO2 extinguisher which has lost 10% of its charge must be __________.
N a. used at the earliest opportunity N b. hydro tested Y c. recharged N d. weighed again in one month 3160: Fixed ballast, if used, may be __________. (small passenger vessel regulations)
N a. discharged or moved at any time Y b. moved temporarily for examination or repair of the vessel, when done under the supervision of an inspector N c. moved under the supervision of the owner, Master or shipyard N d. moved under any condition except extreme emergency 3654: You are communicating on the radiotelephone using plain English. Which procedural word (proword) indicates that you have received another vessel's transmission?
N a. Out N b. Over Y c. Roger N d. Wilco 3687: While drilling loaded as shown in Sample Load Form #4 (Drilling), the DEEP DRILLER suffers an unexpected but slowly increasing port and aft inclination. The wind and waves are light. This inclination could have been caused by __________.
N a. the failure of mooring lines 2 and 3 N b. the drilling crew dumping the mud N c. the drill string breaking Y d. ballast tanks equalizing into tank 10P 3999: Which item may be substituted for, in the fireman's outfit, on a cargo vessel?
N a. fire ax N b. flashlight N c. rigid helmet Y d. flame safety lamp 4018: Towing vessel fire protection regulations distinguish between "new" and "existing" towing vessels. A "new" towing vessel is one that was __________.
N a. built within the last three years N b. contracted for on or after August 27, 2002 Y c. contracted for on or after August 27, 2003 N d. not previously owned 4025: When is direct voice communication allowed in place of an internal communication system on a towing vessel?
N a. When the vessel is less than 20 meters in length N b. When the vessel is ruled to be an "existing vessel" Y c. When the controls at the operation station are within 3 meters (10 feet) of the engine room access N d. When it is easier to shout than use a radio or telephone 4031: The DEEP DRILLER, at 60.0 feet draft in sea water, has VM = 974,441 foot-long tons, and FSMT = 18,732 foot-long tons. What is the metacentric height corrected for transverse free surface effects?
N a. 5.66 feet N b. 7.37 feet Y c. 8.02 feet N d. 54.82 feet 4060: After an item of required safety equipment on a towing vessel fails, the owner or Master must consider all of these factors before continuing the voyage, EXCEPT the ___________ .
N a. weather conditions, including visibility Y b. estimated time of arrival promised to the customer N c. safety of the vessel, considering the other traffic in the area N d. dictates of good seamanship 4136: If one hydraulic pump of an electro-hydraulic steering unit fails, the vessel's steering can be initially and best maintained by using the __________.
N a. trick wheel N b. accumulator Y c. standby pump N d. telemotor 4203: While going on location in 200 feet water depth when the roll angle of the COASTAL DRILLER is 2.5 degrees, the roll period should be longer than __________.
N a. 0.8 second N b. 6.2 seconds Y c. 13.0 seconds N d. 17.0 seconds 4453: When transferring survivors from a survival craft to a rescue vessel, personnel on board the craft should __________.
N a. remove their life preservers to make it easier to climb on board the rescue vessel N b. climb on top of the survival craft while waiting for their turn to transfer to the rescue vessel Y c. remain seated inside the survival craft and make the transfer one person at a time N d. enter the water and swim over to the rescue vessel 4651: If you wear extra clothing when entering the water after abandoning a MODU 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 5047: A jack-up drilling rig being towed must __________.
Y a. turn off all lights that interfere with the navigation lights N b. turn on all available working lights on deck N c. ring the bell rapidly for five seconds once a minute N d. display two black diamonds in a vertical line during the day 5286: A vessel is inclined at an angle of loll. In the absence of external forces, the righting arm (GZ) is __________.
N a. positive N b. negative Y c. zero N d. vertical 5354: You are scheduled to load 3200 tons of cargo, 45 tons of crew effects and stores and 323 tons of fuel. Use the blue pages of the Stability Data Reference Book to determine the vessel's mean draft in salt water.
N a. 17'-00" N b. 16'-10" N c. 16'-07" Y d. 16'-04" 5821: Why should you preload a mooring system above your precalculated operating mooring tensions?
Y a. This serves as a benchmark for increasing tensions in rough weather. N b. This allows you to determine existing bottom conditions. N c. This insures that the anchor cable is stretched out in a straight line. N d. This tests all the components of your mooring equipment. 6743: The required fireman's outfits required for MODU's are not to be used for any other purpose EXCEPT for the __________.
N a. oxygen and explosion meter when it is used for detection of flare gases Y b. self-contained breathing apparatus, when used as protection from gas leaking from a refrigeration unit N c. boots and gloves that are made of rubber or electrically non-conductive material, if used when repairing electrical equipment N d. lifeline, if used by personnel entering a compartment which might be deficient of oxygen 6838: What is an advantage of a steam turbine over a diesel for the main propulsion?
N a. Faster response from ahead to astern N b. Less fuel consumption N c. Cheaper initial installation cost Y d. Less weight per unit of horsepower 7381: One way to increase the period of roll on a semisubmersible rig while under tow is to __________.
N a. dump deck tanks into lower hulls N b. plug ballast tank vents N c. head into the waves Y d. increase tank free surface 7665: Subtracting KG from KM yields __________.
N a. BL Y b. GM N c. FS N d. KG 8131: The COASTAL DRILLER is loaded as shown in Sample Load Form #3 (Drilling). What would be the new sum of longitudinal moments for the liquid variables if the entire contents of drill water tank #17 are transferred to drill water tank #18?
N a. 181,648 ft-kips Y b. 181,718 ft-kips N c. 187,345 ft-kips N d. 195,462 ft-kips 8702: An oil fire is classified as class __________.
N a. D N b. C Y c. B N d. A 8705: The DEEP DRILLER is loaded as shown in Sample Load Form #5 (Survival). While the unit is deballasting, starboard valve 5 fails in the closed position. You may deballast from tank 2S by pumping from tank 1S after opening valves 6 and __________.
N a. 8 N b. 7 Y c. 2 N d. 1 8757: The routes to be used during evacuation of the COASTAL DRILLER are shown in the __________.
N a. official log N b. Muster List ("Station Bill") Y c. posted Fire Control/Lifesaving Plan N d. control room under glass 9607: There is a fire aft aboard your vessel. To help fight the fire, you should __________.
Y a. head the bow into the wind and decrease speed N b. put the wind off either beam N c. put the stern into the wind and increase speed N d. put the stern into the wind and decrease speed