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.
49: You are fighting a fire in the electrical switchboard in the engine room. You should secure the power, then __________.
N a. use a portable foam extinguisher N b. use a low-velocity fog adapter with the fire hose Y c. use a portable CO2 extinguisher N d. determine the cause of the fire 162: The function of the bypass valve on the self-contained breathing apparatus is to __________.
N a. control the pressure of the oxygen as it enters the body Y b. allow the wearer to manually give himself oxygen N c. release excess heat which would otherwise cause the bottle to explode N d. allow exhaled gases to pass outside the bottle 272: Fire alarm system thermostats are actuated by __________.
N a. smoke sensors Y b. the difference in thermal expansion of two dissimilar metals N c. pressure loss due to air being heated N d. an electric eye which actuates when smoke interferes with the beam 369: A cargo vessel of 9,000 tons displacement is carrying a slack deep tank of molasses (SG 1.4). The tank measures 20 feet long and 30 feet wide. What will be the reduction in metacentric height due to free surface, with the vessel floating in sea water (SG 1.026)?
N a. .142 ft. N b. .177 ft. Y c. .195 ft. N d. .212 ft. 400: Whenever a "T-Boat" is hauled out for repairs or alterations affecting its safety you must __________.
N a. provide a complete set of plans to the Commandant for review Y b. notify the cognizant OCMI N c. schedule a full safety equipment inspection N d. Both B and C 628: The most likely location for a liquid cargo fire to occur on a tanker would be __________.
N a. in the midships house N b. at the main deck manifold N c. at the vent header Y d. in the pumproom 685: The operator of each vessel engaged in a vessel-to-vessel oil transfer operation must keep a signed copy of the declaration of inspection for __________.
N a. 10 days Y b. 1 month N c. 6 months N d. 1 year 1027: What is the most important characteristic of the extinguishing agent in fighting a class "C" fire?
N a. Weight N b. Temperature Y c. Electrical nonconductivity N d. Cost 1269: Life floats and buoyant apparatus used aboard small passenger vessels shall be marked in clearly legible letters and numbers __________.
Y a. with the parent vessels name in 3" high letters and the number of persons allowed with 1 1/2" high numbers N b. by a Coast Guard inspector after inspecting the equipment N c. by the American Bureau of Shipping (ABS), another recognized, authorized classification society or the vessels underwriters N d. by all of the above 1306: Water pockets on the underside of an inflatable liferaft are for __________.
N a. catching rain water Y b. stability N c. easy drainage N d. maneuverability 1373: You are reading draft marks on a vessel. The water level is halfway between the bottom of the number 5 and the top of the number 5. What is the draft of the vessel?
N a. 4'-09" N b. 5'-09" Y c. 5'-03" N d. 5'-06" 1391: Halon extinguishes fire primarily by __________.
N a. cooling N b. smothering N c. shielding of radiant heat Y d. breaking the chain reaction 1462: When authorized to use chemical agents on an oil spill they would __________.
N a. absorb the oil for easy removal N b. dissolve the oil in the water Y c. facilitate the removal of the pollutant from the water N d. sink the oil 1486: A cargo of 30 tons is to be loaded on deck 30 feet from the ship's centerline. The ship's displacement including the 30 tons cargo will be 9,000 tons and the GM will be 5 feet. The list of the vessel after loading this cargo will be __________.
Y a. 1.14° N b. 2.05° N c. 2.31° N d. 3.40° 1618: Which characteristic of Halon is a disadvantage when it is used as a fire extinguishing medium?
N a. Leaves a residue Y b. Cost, relative to other agents N c. Breaks down while under prolonged storage N d. Conducts electricity 1755: When checking the oxygen content of the cargo tanks prior to loading cargoes requiring vapor recovery, the atmosphere must be sampled __________.
N a. one meter from the tank bottom and one meter below the tank top Y b. one half the ullage of the tank and one meter below the tank top N c. one half the ullage of the tank and one meter above the tank bottom N d. at three meter intervals from the tank top 1814: Your vessel displaces 840 tons and measures 146'L x 38'B. You ship a large wave on the after deck. What is the reduction in GM due to free surface before the water drains overboard, if the after deck measures 65'L x 38'B and the weight of the water is 76 tons?
N a. 8.76 feet N b. 8.93 feet N c. 9.04 feet Y d. 9.27 feet 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 1986: Which statement is TRUE?
N a. You need not keep a record of ground garbage dumped into the sea more than 25 miles offshore. Y b. You must keep a record of garbage discharged in port to a shore facility. N c. You need not keep a record of garbage incinerated on the ship. N d. You must keep a record of the approximate weight of the garbage dumped. 2100: You have 180 tons of below deck tonnage including liquid mud. Your existing deck cargo is 300 tons with a VCG above the deck of 3.0 feet. What is the maximum additional cargo tonnage you are permitted to load? (See illustration D036DG, stability letter for M.V. Hudson.) (D036DG )
N a. 20 tons N b. 60 tons Y c. 100 tons N d. 400 tons 2106: In special cases, the Commandant of the Coast Guard may permit cargo piping to pass through machinery spaces, provided that the only cargo carried through such piping is(are) __________.
N a. grades A or B N b. grades D or E Y c. grade E N d. LFG 2173: Which statement concerning exposure to radiation is TRUE?
N a. The INMARSAT unit's ray dome filters out potentially dangerous UV rays. Y b. Certain INMARSAT systems will automatically transmit when called and can expose an individual to harmful radiation. N c. INMARSAT-A and B antennas are safe because they are omnidirectional. N d. An INMARSAT-C antenna must be carefully avoided because it focuses the transmitter's signal into a fine beam of energy. 2189: Changing direction by bringing the stern of the vessel through the eye of the wind is known as __________.
Y a. jibing N b. running before the wind N c. tacking N d. reefing 2303: The air cylinder bottles in the survival craft should be refilled with __________.
N a. oxygen N b. nitrogen Y c. compressed air N d. nitrogen and oxygen 2421: How many degrees are there on a compass card?
Y a. 360° N b. 380° N c. 390° N d. 420° 2485: A drilling bit which is doughnut shaped to permit recovery of the center portion of the hole drilled is called a __________.
N a. diverter bit N b. hole reamer Y c. core bit N d. conventional bit 2521: To enable tying down a helicopter on the landing area of a MODU, the landing deck must be fitted with __________.
Y a. recessed tie down points N b. hydraulically lifted bitts N c. air tuggers N d. fixed cleats 2529: What is a grade B flammable liquid?
N a. Ethylene oxide N b. Paraldehyde Y c. Chlorallylene N d. Allyl alcohol 2545: On a MODU crane, the boom indicator tells the operator what the boom angle is compared to the __________.
N a. vertical position Y b. horizontal position N c. boom stop angle N d. minimum radius angle 2548: According to regulations, which grade(s) of cargo may be carried in tanks that are vented 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 2627: Deck beams on a MODU are generally spaced at equal intervals and run __________.
N a. longitudinally N b. vertically Y c. transversely N d. intermittently 2671: To meet the regulations governing manning requirements outside U.S. jurisdiction, a person holding a foreign license can serve in any of the following positions EXCEPT __________.
N a. able seaman N b. ballast control operator N c. barge supervisor Y d. offshore installation manager 3028: While serving as Master on board your vessel, your license must be __________. (small passenger vessel regulations)
N a. displayed in the company office on shore N b. displayed in your home Y c. in your possession on board the vessel N d. kept in the Coast Guard office where you sat for your license 3412: Your vessel's existing draft is FWD 24'-08", AFT 25'-04". Using the Guidance Manual for Loading M.V. GRAND HAVEN, determine the new draft if 180 long tons are loaded in No. 23 hatch.
N a. FWD 24'-04 2/3", AFT 25'-10 3/4" Y b. FWD 24'-06 1/2", AFT 25'-08 2/3" N c. FWD 24'-08 1/4", AFT 25'-00 2/3" N d. FWD 24'-10 1/4", AFT 25'-00 1/4" 3417: Which statement is TRUE concerning an inflatable liferaft?
N a. The floor may be inflated for insulation from cold water. N b. Crew members may jump into the raft without damaging it. N c. The raft may be boarded before it is fully inflated. Y d. All of the above 3559: The rescue boat on an OSV is not required to carry a __________.
Y a. fishing kit N b. searchlight N c. sea anchor N d. radar reflector 3809: Provided every effort is used to produce, as well as preserve body moisture content by avoiding perspiration, how long is it normally possible to survive without stored quantities of water?
N a. Up to 3 days Y b. 8 to 14 days N c. 15 to 20 days N d. 25 to 30 days 3812: If you have to abandon ship, and enter a liferaft, your main course of action should be to __________.
Y a. remain in the vicinity of the sinking vessel N b. head for the closest land N c. head for the closest sea-lanes N d. get a majority opinion 3927: What pump may be used to supplement the bilge pump on the DEEP DRILLER?
N a. #1 Ballast N b. #2 Ballast N c. Salt-Water Service Y d. Drill water 4167: The DEEP DRILLER is loaded as shown in the Sample Load form #3 (Preparing to Drill). If all the liquid mud (see table 8) is dumped, what would be the new metacentric height corrected for transverse free surface effects?
Y a. 11.26 feet N b. 10.07 feet N c. 9.67 feet N d. 8.30 feet 4173: The DEEP DRILLER, loaded as shown in the Sample Load Form #4 (Drilling), discharges all the cement in the P-Tanks. See Table 7. What is the change in KG?
N a. 0.24 foot downward Y b. 0.49 foot downward N c. 0.88 foot downward N d. 1.02 feet downward 4232: The number of approved adult life jackets that shall be carried is equal to __________. (small passenger vessel regulations)
N a. 120% of the number of persons listed in the vessel's Certificate of Inspection N b. 90% of the number of persons listed in the vessel's Certificate of Inspection N c. 90% of the number of persons on board at the time Y d. the number of persons on board at the time 4246: Radiation spreads a fire by __________.
Y a. transferring heat across an unobstructed space N b. heated gases flowing through ventilation systems N c. burning liquids flowing into another space N d. transmitting the heat of a fire through the ship's metal 4333: The COASTAL DRILLER is experiencing a single amplitude roll angle of 2 degrees and a roll period of 10 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 4461: If you have to jump in the water when abandoning a MODU, your legs should be __________.
N a. spread apart as far as possible N b. held as tightly against your chest as possible N c. in a kneeling position Y d. extended straight down and crossed at the ankles 5387: Which toxic gas is a product of incomplete combustion, and is often present when a fire burns in a closed compartment?
N a. Nitric oxide N b. Carbon dioxide N c. Hydrogen sulfide Y d. Carbon monoxide 6013: On a MODU, size III, IV, and V extinguishers are considered __________.
N a. hand portable N b. all purpose N c. fixed extinguishers Y d. semi-portable 6023: On a MODU, 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 6083: A fixed CO2 system on a MODU with a capacity of over 300 lbs (136 kilograms) CO2 which protects spaces other than tanks must have __________.
N a. two or more releasing stations N b. automatic release in event of a fire Y c. an audible alarm and time delay N d. an audible and visible alarm 6245: On board a mobile offshore drilling unit, the key to the most rapid and effective response to a man overboard situation is __________.
Y a. well-conducted drills N b. a dedicated crew N c. good equipment N d. good communication 6603: A weathertight door on a MODU must not allow water to penetrate into the unit in __________.
N a. 50 knot winds N b. 70 knot winds N c. 100 knot winds Y d. any sea condition 6731: During the required periodic abandon ship drill aboard a MODU, each person not assigned duties in the muster list is __________.
N a. instructed in the use of portable fire extinguishers N b. shown a video demonstrating lifeboat launching Y c. instructed in the use of life jackets N d. not required to attend the boat drill 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 7072: The SS AMERICAN MARINER has drafts of: FWD 15'-06", AFT 18'-06". Use the white pages of the Stability Data Reference Book to determine the drafts if you ballast the forepeak with 62 tons of seawater.
N a. FWD 15'-11.5", AFT 18'-02.7" N b. FWD 16'-00.1", AFT 18'-02.1" Y c. FWD 16'-00.7", AFT 18'-01.5" N d. FWD 16'-01.3", AFT 18'-00.9" 7391: Personnel boarding a davit-launched liferaft from a MODU should be checked to assure they are not in possession of or wearing __________.
N a. oil stained shoes or clothing Y b. sharp objects that may puncture or damage the liferaft N c. matches or cigarette lighters N d. drugs or paraphernalia not approved by a medical doctor 8036: Radiation spreads a fire by __________.
N a. transmitting the heat of a fire through the ship's metal N b. burning liquids flowing into another space Y c. transferring heat across an unobstructed space N d. heated gases flowing through ventilation systems 8621: What is the transverse shift in the center of gravity if 200 short tons are placed 10 feet to port of the centerline on a MODU with TCG 0.7 foot starboard of the centerline, and the displacement is 9,000 short tons?
N a. 0.03 foot N b. 0.20 foot Y c. 0.23 foot N d. 0.62 foot 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 9414: Blocking open or removing fire dampers can cause __________.
Y a. the fire to spread through the ventilation system N b. fixed foam systems to be ineffective N c. faster cooling of the fire N d. the accumulation of explosive gases 9521: Aboard a vessel, dividing the sum of the vertical moments by the total weight yields the vessel's __________.
Y a. height of the center of gravity N b. vertical moments N c. righting moments N d. inclining moments