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.
77: Normally, the percentage of oxygen in air is __________.
N a. 16% N b. 18% Y c. 21% N d. 25% 349: A marine radar system for surface navigation must be fitted on all ocean or coastwise vessels of over __________.
N a. 1,400 GT N b. 1,500 GT Y c. 1,600 GT N d. 1,700 GT 379: Plastic material may be discharged overboard from a vessel if it is __________.
N a. 3 miles from shore N b. 12 miles from shore N c. 25 miles from shore Y d. None of the above 499: In setting the valves on a steam-smothering system on a tank vessel, the master control valve to cargo tanks should be __________.
N a. open and individual tank valves open N b. open and the individual tank valves closed N c. closed and the individual tank valves closed Y d. closed and the individual tank valves open 627: Distress flares and smoke signals for small passenger vessels __________.
N a. are not required aboard vessels on runs of less than 30 minutes duration N b. must be Coast Guard approved and stowed in a portable, watertight container N c. must be marked with an expiration date not more than 42 months from the date of manufacture Y d. All of the above 902: Your vessel is equipped with a fixed CO2 system and a fire main system. In the event of an electrical fire in the engine room what is the correct procedure for fighting the fire?
N a. Use the CO2 system and evacuate the engine room. N b. Use the fire main system and evacuate the engine room. Y c. Evacuate the engine room and use the CO2 system. N d. Evacuate the engine room and use the fire main system. 928: A fire in the radio transmitter would be of what class?
N a. A N b. B Y c. C N d. D 1297: A small passenger vessel of not more than 65 feet in length must have a collision bulkhead if it __________.
N a. operates on exposed waters N b. carries more than 49 passengers N c. is more than 40 feet in length and operates on partially exposed waters Y d. All of the above 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 1424: Halon gas will decompose and may form very hazardous toxic fumes when discharged __________.
Y a. directly on flames N b. at room temperature N c. in an extremely cold climate N d. None of the above 1428: A Halon 1301 cylinder contains 100 pounds of liquid at 360 psi. It must be recharged when the pressure drops below how many psi?
N a. 360 N b. 352 N c. 336 Y d. 324 1550: The purpose of a water spray system on a covered lifeboat is to __________.
N a. cool the lifeboat engine Y b. keep the lifeboat from reaching combustion temperature while operating in a fire N c. keep the lifeboat warm in a cold climate by applying heated water spray from the engine to the boat N d. put out a fire inside the lifeboat 1557: When a sea anchor for a lifeboat is properly rigged, it will __________.
N a. completely stop the lifeboat from drifting Y b. help to prevent broaching N c. prevent the lifeboat from pitching N d. None of the above 1564: Which action is routinely performed at the annual servicing and inspection of a dry-chemical cartridge-operated portable fire extinguisher?
Y a. Insure the chemical is powdery. N b. Replace the cartridge. N c. Pressure test the discharge hose. N d. Test the pressure gauge for proper operation. 1607: A bilge suction line, in a fishing vessel with more than 16 individuals aboard, must have a strainer with an open area not less than how many times the open area of the suction line?
N a. one N b. two Y c. three N d. four 1642: The Master or person in charge on a MODU shall insure that line throwing equipment is not operated __________.
N a. during a rain storm Y b. in an explosive atmosphere N c. near a lifeboat station N d. by other than senior rig personnel 1702: You are sailing at 8 knots on a beam reach in an apparent wind of 25 knots. Which statement is TRUE?
N a. The true wind is a little abaft your beam, at just under 25 knots. N b. The apparent wind at the top of your mast will be slightly stronger than 25 knots and slightly farther forward than the wind at deck level. N c. If you turn to a close reach, the apparent wind will reduce in strength. Y d. None of the above are true. 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 1810: Halon extinguishes a fire by __________.
Y a. breaking the chain reaction N b. smothering the fire N c. cooling the fire N d. coating the fuel with a nonflammable surface 1845: What is the minimum number of hand held, rocket propelled, parachute, red flare, distress signals required on board offshore drilling units?
N a. 4 N b. 8 Y c. 12 N d. 16 1922: BOTH INTERNATIONAL AND INLAND A sailing vessel shall not impede the safe passage of a __________.
Y a. power-driven vessel following a traffic lane N b. pilot vessel enroute to a pilot station N c. law enforcement vessel N d. All of the above 2089: On a vessel carrying grades A, B, C or D cargoes, enclosed spaces where sources of vapor ignition are normally present shall NOT be segregated from cargo tanks by __________. (vessel constructed after 1970)
N a. cofferdams Y b. galleys N c. pump rooms N d. tanks used to carry liquids having a flash point of 150°F or above 2256: 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-0054
N a. Available GM 6.8 ft N b. Available GM 5.4 ft N c. Available GM 4.1 ft Y d. Available GM 3.6 ft 2276: What is the Reid vapor pressure of allyl chloride?
N a. 16.5 (psia) N b. 14.0 (psia) N c. 12.9 (psia) Y d. 10.3 (psia) 2288: A major health hazard of the product tert-butylamine is that it______.
N a. can be absorbed through the skin Y b. causes irreversible damage to eye tissue N c. is a very unstable product N d. All of the above 2367: The person or company, either proprietor or lessee, actually operating an oil well or lease is the __________.
N a. production company N b. company representative N c. drilling contractor Y d. operator 2459: A virtual rise in the center of gravity may be caused by __________.
N a. filling a partially filled tank Y b. using fuel from a pressed fuel tank N c. emptying a partially filled tank N d. transferring ballast from the forepeak to the after peak 2568: Your vessel's drafts are: FWD 27'-06", AFT 28'-02"; 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 righting arm at 15° inclination.
N a. 0.3 foot N b. 1.3 feet Y c. 1.5 feet N d. 1.8 feet 2626: Which message categories cannot be disabled by the GMDSS Radio Operator?
N a. Navigational warnings N b. Meteorological warnings N c. Search and Rescue information Y d. All of the above 2842: No "T-boat", however propelled, may operate with more than six passengers onboard __________.
Y a. unless the operator has a Coast Guard license N b. unless the vessel has a valid Permit to Proceed N c. until the Boarding Officer has checked the papers N d. until a permit is obtained from the Collector of Customs 2871: As shown, the symbol 3 represents __________. (D041DG )
N a. displacement Y b. amidships N c. forward perpendicular N d. baseline 3092: Why is it necessary to extend ventilators of gasoline powered vessels to the bilges?
N a. To keep them dry, and thus easier to clean Y b. To remove fuel vapors which are heavier than air N c. To provide adequate air to the engines N d. To cool the machinery areas 3166: You are underway with a tow consisting of six barges containing hazardous chemicals. Which statement is FALSE concerning a cargo information card?
N a. It must be carried in the pilothouse, readily available for each chemical carried. Y b. It must be posted on the lead barge of the tow only. N c. It must be posted on each barge on the tow. N d. It contains information on procedure for spills or leaks. 3322: If your vessel is certificated to carry 10 persons, including both adults and children, how many life jackets are you required to carry on board? (small passenger vessel regulations)
N a. 11 adult Y b. 10 adult and 1 child N c. 10 adult and 5 child N d. 10 adult 3364: 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-0124
N a. 444 tons N b. 644 tons N c. 1044 tons Y d. 1263 tons 3484: Your 80-ton schooner is hove to on the starboard tack under storm trysail and fore-staysail in 45 knots of wind. Your heading is averaging about 000° true and the wind is from the northeast. There is a dangerous shoal bearing 270° true, range 5 miles. Which action would be appropriate?
N a. You need only stay alert for changes, as your present drift will carry you away from the danger. N b. You should strike all sails and get underway under bare poles, making as much way as possible to the north. N c. You should set a reefed foresail and strike the jib. Y d. You should tack or jibe to the port tack and make all possible headway to the south. 3567: What are the maximum vertical moments including free surface moments permitted on the DEEP DRILLER at a draft of 60 feet if the winds are greater than 70 knots?
Y a. 942,120 foot-tons N b. 946,271 foot-tons N c. 974,441 foot-tons N d. 1,059,885 foot-tons 3600: How should the number "3" be pronounced when spoken on the radiotelephone?
Y a. TAY-RAH-TREE N b. BEES-SOH-THREE N c. NUM-ERL-THREE N d. TRIC-THREE 3648: All of the following are recognized distress signals under the Navigation Rules EXCEPT __________.
Y a. a green star signal N b. orange-colored smoke N c. red flares N d. the repeated raising and lowering of outstretched arms 3698: You are attempting to administer CPR to a victim. When you blow into his mouth it is apparent that no air is getting into the lungs. What should you do?
N a. Blow harder to force the air past the tongue. N b. Raise the victim's head higher than his feet. N c. Press on the victim's lungs so that air pressure will blow out any obstruction. Y d. Re-tip the head and try again. 3944: What is the most vulnerable part of the fire main system?
N a. The fire pump N b. Exposed hard piping N c. The hydrant valve Y d. The fire hose 4106: In the event of a fire, the doors to a stair tower must be closed to prevent the spread of fire by __________.
N a. conduction N b. ventilation N c. radiation Y d. convection 4121: The DEEP DRILLER is observed to be level at a draft of 60.0 feet. At the same time, the calculated load form shows the displacement to be 17,845 long tons, total longitudinal moments 51,466 foot-tons, and total transverse moments -10,000 foot-tons. What is the weight of the missing load?
N a. 220.7 long tons N b. 235.3 long tons N c. 253.7 long tons Y d. 272.7 long tons 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 4701: After you activate your emergency position indicating radio beacon, you should __________.
N a. turn it off for five minutes every half-hour N b. turn it off and on at five-minute intervals N c. turn it off during daylight hours Y d. leave it on continuously 5235: If a MODU takes a sudden severe list or trim from an unknown cause, you should FIRST __________.
Y a. determine the cause before taking countermeasures N b. assume the shift is due to off-center loading N c. counterflood on the side opposite the list or trim N d. assume the cause is environmental forces 5591: The major cause of anchor buoy pendant wire failures is __________.
N a. corrosion Y b. rough weather N c. defective sockets N d. mishandling 6495: A small fuel spillage has occurred during helicopter refueling. After the leak has been stopped and fire-control personnel have been notified and are standing by, the next step is to __________.
N a. proceed with fueling operation N b. have helicopter move to a safer location Y c. wash spilled fuel away with a flood of water N d. clean spilled fuel with rags 6623: Each hose in the fuel transfer system for helicopter refueling must have a __________.
Y a. static grounding device N b. quick-disconnect nozzle N c. splash guard N d. vapor recovery system 6833: If a drill required by regulations is not completed on a mobile offshore drilling unit, the Master or person in charge must __________.
N a. report this immediately to the OCMI N b. report this immediately to the Commandant of the Coast Guard Y c. log the reason for not completing the drill N d. conduct two of the required drills at the next opportunity 6843: With regard to the opening and closing of watertight integrity appliances not fitted with a remote operating control or alarm system, what must the Master or person in charge of a MODU enter in the logbook?
N a. The time required to close the appliances Y b. The reason for opening or closing each appliance N c. The name of the person performing the opening and closing of such appliances N d. The fact that the hull indicators functioned or not 7047: What are symptom(s) of a ruptured appendix?
N a. Dilated pupils and shallow breathing N b. Diarrhea and frequent urination Y c. Muscle tenseness in almost the entire abdomen N d. Extreme sweating and reddening skin 7321: The reception of weak radio signals may be improved by "opening up" the squelch control. What is the normal setting of the squelch control?
Y a. Just past the point where background noise is cut off N b. Completely closed with the volume at the highest level N c. Completely open with the volume at the lowest level N d. None of the above 8073: A person who holds a foreign license can serve as the ballast control operator to meet manning requirements on a MODU on waters outside U.S. jurisdiction until the __________.
N a. MODU's contract is completed N b. Certificate of Inspection is renewed Y c. MODU returns to a U.S. port N d. Operations Manual is revised 8315: The airborne concentrations of substances (such as H2S) under which nearly all workers may be repeatedly exposed without adverse effects are called __________.
N a. exposure limits N b. concentration limits Y c. threshold limit values N d. substance limit values 8707: The DEEP DRILLER is loaded as shown in Sample Load Form #4 (Drilling). If port valves 24 and 2 are mistakenly opened, the change in inclination will be increasing trim by the __________.
Y a. bow with port list N b. bow N c. stern N d. stern with starboard list 8985: The time required to incline from bow down to stern down and return to bow down again is called __________.
N a. rolling period N b. amplitude moment N c. inclining moment Y d. pitching period 9231: The transverse free surface correction of a floating MODU displacing 24,000 long tons is 1.0 foot. When the MODU is deballasted by discharging 8,000 long tons of ballast, the FSMT decreases by 4,000 ft-long tons. What is the new FSCT?
N a. 1.50 feet Y b. 1.25 feet N c. 1.00 foot N d. 0.83 foot 9562: The most likely location for a liquid cargo fire to occur on a tanker would be __________.
N a. the midships house Y b. in the pumproom N c. at the vent header N d. at the main deck manifold 9565: The LCG of a vessel may be found by dividing displacement into the __________.
N a. longitudinal center of gravity of the vessel N b. sum of the vertical moments of the vessel Y c. sum of the longitudinal moments of the vessel N d. longitudinal baseline of the vessel