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.
109: Your vessel has a displacement of 10,000 tons. It is 350 feet long and has a beam of 55 feet. You have timed it's full rolling period to be 15.0 seconds. What is your vessel's approximate GM?
N a. 1.18 feet N b. 1.83 feet Y c. 2.60 feet N d. 3.36 feet 114: If you are in urgent need of a helicopter, which signal code should you send?
Y a. BR N b. BS N c. BT1 N d. BZ 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 277: The vessel's Emergency Position Indicating Radio beacon (EPIRB) must be tested __________.
N a. weekly Y b. monthly N c. every 2 months N d. every 3 months 316: The space containing the cylinders for the carbon dioxide(CO2) fire extinguishing system must be designed to preclude an anticipated ambient temperature over __________.
N a. 80°F N b. 95°F Y c. 130°F N d. 150°F 374: A vessel operating outside of coastal waters must carry an automatically activated Emergency Position Indicating Radio Beacon (EPIRB) if she __________.
N a. does not have berthing facilities Y b. has berthing and galley facilities N c. is a workboat and her mother ship carries an EPIRB N d. None of the above are correct. 444: A call between any two ship stations on an intership working frequency shall have a maximum duration of __________.
N a. 2 minutes Y b. 3 minutes N c. 4 minutes N d. 5 minutes 652: How does foam extinguish an oil fire?
N a. By cooling the oil below the ignition temperature N b. By removing the fuel source from the fire Y c. By excluding the oxygen from the fire N d. By increasing the weight of the oil 659: A vessel carries three slack tanks of gasoline (SG .68). The vessel's displacement is 8,000 tons. Each tank is 50 ft. long and 20 ft. wide. What is the reduction in GM due to free surface with the vessel floating in sea water (SG 1.026)?
N a. .20 feet Y b. .24 feet N c. .28 feet N d. .30 feet 992: On small passenger vessels gasoline tanks must be __________.
N a. electrically bonded to a common ground N b. fitted with vertical baffle plates if the tank is longer than 30 inches in any horizontal dimension N c. built without flanged-up top edges Y d. All of the above 1042: Which danger exists to people when CO2 is discharged into a small enclosed space?
N a. Damaged eardrums N b. Electric shock N c. Frostbite Y d. Respiratory arrest 1064: By day, the horizontal motion of a white flag, or arms extended horizontally, by a person on the beach indicates __________.
N a. "Haul away" N b. "Tail block is made fast" Y c. "Negative" N d. "Affirmative" 1082: Which statement is TRUE concerning combustible gas indicators?
N a. One sample of air is adequate to test a tank. Y b. They do not work properly where there is a lack of oxygen. N c. They will detect a lack of oxygen. N d. They are calibrated to read the percentage chance of explosion. 1436: Your vessel's draft is 16'-00" fwd. and 18'-00" aft. The MT1 is 500 ft-tons. How many tons of water must be shifted from the after peak to the forepeak, a distance of 250 feet, to bring her to an even draft forward and aft?
N a. 52 tons N b. 50 tons Y c. 48 tons N d. 24 tons 1439: Safety goggles or glasses are NOT normally worn when __________.
N a. using a rotary grinder with an installed shield N b. letting go the anchor Y c. handling wire rope or natural fiber line N d. painting with a spray gun 1494: Your vessel has 3 lifeboats on each side. The aftermost boat on the port side is designated as boat number __________.
Y a. 6 N b. 5 N c. 3 N d. 3 PORT 1502: A portable foam (stored-pressure type) fire extinguisher would be most useful in combating a fire in __________.
N a. generators Y b. oil drums N c. the bridge controls N d. combustible metals 1736: On a hydrocarbon flammability chart the line which extends from 0% to 21.8% oxygen, lying tangent to the flammability range, is called the __________.
N a. minimum oxygen content line N b. critical displacement line Y c. critical dilution line N d. upper threshold limit 1760: After jacking down your liftboat you have an unexpected list. You find that the only cause of this list must be a flooded leg. Your next course of action should be to __________.
Y a. jack the vessel back up to a safe height N b. proceed on to your next destination since the list is unimportant N c. pump out all ballast to gain reserve buoyancy N d. notify the U. S. Coast Guard 1805: A sloop is a sailing vessel with __________.
Y a. one mast N b. two masts: with the mizzen stepped abaft the rudder post N c. two masts: with the mizzen stepped forward of the rudder post N d. two masts: a foremast and a mainmast 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 2041: You are keeping the required garbage disposal records. The amount of garbage disposed must be stated in __________.
N a. barrels of 55 gallon capacity N b. both kilos and pounds N c. both cubic meters and cubic feet Y d. cubic meters 2062: You are running before the wind in a fresh breeze. The boom may be prevented from accidentally jibing by using a(n) __________.
N a. buntline N b. clewline N c. outhaul Y d. preventer 2097: If you reef a marconi mainsail, the sail area __________.
Y a. becomes less N b. becomes larger N c. does not change N d. moves aft 2502: The international shore connection __________.
N a. permits discharge of waste oil Y b. allows hook up of fire hoses from a dock or another vessel N c. satisfies pollution prevention requirements N d. allows emergency use of the fire main for deballasting 2584: The grade C flammable liquid phenylethane is found in the Chemical Data Guide under the chemical name __________.
N a. ethyl cyanide Y b. ethylbenzene N c. ethyl acetate N d. muriatic ether 2800: Your vessel assumes an angle of loll of 8° after loading a deck cargo. The drafts are: FWD 17'-09", AFT 18'-03". Use the information in Section 1, the blue pages, of the Stability Data Reference Book to determine the negative GM.
N a. 0.0 foot Y b. -0.2 foot N c. -0.8 foot N d. -1.0 foot 2843: Under the Pollution Regulations, garbage disposal records must be kept __________.
Y a. two years N b. one year N c. until the next Coast Guard inspection N d. until the end of the voyage 2844: Your vessel's drafts are: FWD 27'-06", AFT 28'-02"; and the KG is 23.1 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the righting arm at 37° inclination if the center of gravity is 1.8 feet off center.
Y a. 0.4 foot N b. 1.4 feet N c. 1.8 feet N d. 2.6 feet 2902: Vessels in ocean service shall carry sufficient life floats for __________. (small passenger vessel regulations)
N a. 25% of all persons on board N b. 50% of all persons on board N c. 75% of all persons on board Y d. 100% of all persons on board 2911: In the event of a fire, the doors to a stair tower must be closed to prevent the spread of fire by __________.
N a. ventilation Y b. convection N c. radiation N d. conduction 3367: After a liferaft is launched, the operating cord __________.
Y a. serves as a sea painter N b. detaches automatically N c. is used to rig the boarding ladder N d. is cut immediately as it is of no further use 3536: There are two disadvantages to CO2 as a firefighting agent. One of these is the limited quantity available, and the other is __________.
Y a. the lack of cooling effect on heated materials N b. that it cannot be used in a dead ship situation with no electrical power to the CO2 pump N c. that it breaks down under extreme heat to form poisonous gases N d. there is no effect on a class A fire even in an enclosed space 3592: When should the emergency position-indicating radio beacon be activated after abandoning an OSV?
Y a. Immediately N b. After one hour N c. Only when another vessel is in sight N d. Only after sunset 3636: The SS AMERICAN MARINER has the following drafts: FWD 08'-11.5", AFT 15'-11.5". Upon completion of loading and bunkering the items listed will be on board. Use the white pages of The Stability Data Reference Book to determine the minimum GM required to meet a one compartment standard. ST-0144
N a. 3.15 feet Y b. 3.00 feet N c. 2.90 feet N d. 2.80 feet 3756: Treatment of sunstroke consists principally of __________.
Y a. cooling, removing to shaded area, and lying down N b. bathing with rubbing alcohol N c. drinking ice water N d. All of the above 3774: The signal given to commence lowering the lifeboats is __________.
N a. 3 short blasts of the ship's whistle Y b. 1 short blast of the ship's whistle N c. 3 long blasts of the ship's whistle N d. 1 long blast of the ship's whistle 3956: Your ship is sinking rapidly. A container containing an inflatable liferaft has bobbed to the surface upon functioning of the hydrostatic release. Which action should you take?
N a. Cut the painter line so it will not pull the liferaft container down. N b. Swim away from the container so you will not be in danger as it goes down. Y c. Take no action because the painter will cause the liferaft to inflate and open the container. N d. Manually open the container and inflate the liferaft with the hand pump. 4078: When shifting to a course where the wind comes more from astern, easing the mainsheet will __________.
N a. bring the boom more fore and aft N b. decrease the force needed to haul on the mainsheet N c. bring the head of the sail down from the top of the mast Y d. allow the sail to catch more wind 4234: Which type of fixed fire protection system is approved for use on board uninspected vessels? (Uninspected Vessel Regulations)
N a. Dry chemical Y b. Water mist N c. Chemical foam N d. Steam smothering 4237: The Cantilever Beam Load Chart for the COASTAL DRILLER shows the limits in the hook setback conductor tension, and __________.
N a. wind loads N b. wave loads N c. current loads Y d. rotary loads 4621: On the COASTAL DRILLER, the start/stop station for the bilge pumps is located __________.
N a. in the OIM's office N b. in the control house Y c. near the bilge pits N d. in the MCC 4687: What is the decrease in vertical moments for the Coastal Driller if 2.5 feet of drill water is discharged from a full drill water tank #23?
N a. 3,464 ft-kips N b. 2,982 ft-kips Y c. 482 ft-kips N d. 161 ft-kips 4703: A jack-up 210 feet in length is level during transit. The LCF is 140 feet aft of the bow. How much weight should be applied at the stern to re-level the jack-up if 75 kips is applied at the bow?
N a. 50 kips N b. 75 kips N c. 100 kips Y d. 150 kips 5085: A mobile offshore drilling unit must display obstruction lights when it is on the waters over the Outer Continental Shelf and is __________.
N a. under tow Y b. fixed to the seabed N c. underway N d. All of the above 5427: The COASTAL DRILLER, loaded as shown in the Sample Load Form #4 (Storm), discharges all the bulk in the four bulk tanks. What is the new LCG?
N a. 115.79 feet AFO Y b. 119.18 feet AFO N c. 119.44 feet AFO N d. 126.68 feet AFO 5522: Radiation spreads a fire by __________.
N a. transmitting the heat of a fire through the ship's metal Y b. transferring heat across an unobstructed space N c. burning liquids flowing into another space N d. heated gases flowing through ventilation systems 5814: Your drafts are: FWD 18'-03", AFT 21'-09". What is the KM based on the tables in the blue pages of the Stability Data Reference Book?
N a. 25.2 feet Y b. 25.6 feet N c. 25.9 feet N d. 26.3 feet 5946: The SS AMERICAN MARINER has drafts of: FWD 25'-11", AFT 26'-11". Use the white pages of the Stability Data Reference Book to determine the drafts if you ballast the forepeak with 83 tons of seawater.
N a. FWD 26'-05.6", AFT 26'-07.5" N b. FWD 26'-06.2", AFT 26'-06.9" Y c. FWD 26'-06.8", AFT 26'-06.3" N d. FWD 26'-07.7", AFT 26'-05.4" 6291: When dragging of an anchor occurs, you must either reposition it at greater range or __________.
N a. adjust the tensiometer N b. reduce the conductor tension Y c. use a piggyback (backing) anchor N d. increase the riser tension 6985: The COASTAL DRILLER, while operating with minimal wave clearance, is inclined 0.5 degrees bow down. Lowering the stern may place the hull in the wave action. The recommended course of action is to __________.
N a. prepare to take action in case inclination increases Y b. jack the hull up on the bow leg N c. jack the hull down on the aft two legs N d. transfer weight, such as drill water, toward the stern 7093: Normal mouth temperature is __________.
N a. 96.4°F N b. 97.5°F Y c. 98.6°F N d. 99.7°F 7395: In evacuation from a MODU, an individual without the option of a survival craft or liferaft should enter the water on the leeward side, except when __________.
Y a. there is burning oil on the water N b. there is a rescue craft in the area N c. water temperature is below 40°F N d. a rigid survival craft is in the area 8191: During a severe storm while the COASTAL DRILLER is elevated, on board loads must be shifted so that the TCG is on the centerline and the LCG is __________.
N a. 40.00 feet AF0 N b. 68.33 feet AF0 Y c. 119.44 feet AF0 N d. 160.33 feet AF0 8557: Each fire pump on a MODU must have a pressure gauge located at __________.
Y a. the pump discharge N b. the manifold connection N c. each fire station discharge N d. the pump station 8715: Starboard ballast pump #1 on the DEEP DRILLER has failed. To deballast from tank C2SA using starboard ballast pump #2, it is necessary to open the manual valve and which motor driven valves?
Y a. 15, 34, 35, 36, 46, 48 N b. 16, 27, 32, 35, 36, 48 N c. 15, 33, 43, 48 N d. 14, 34, 35, 36, 46, 48 8847: A semisubmersible 300 feet long and an LCF of 0 (amidships) is in transit with hulls awash and an MT1" of 87.67 foot-tons. Work on the BOP (weight 263 long tons) requires that it be moved aft 12 feet. What is the resulting trim change?
N a. 1.5 feet Y b. 3.0 feet N c. 6.0 feet N d. 7.3 feet 9513: In the presence of external forces, the center of buoyancy of an inclined vessel is vertically aligned with the __________.
N a. center of gravity Y b. metacenter N c. center of flotation N d. keel 9535: When stability of a vessel is neutral, the value of GM __________.
N a. only depends on the height of the center of gravity N b. only depends on the height of the metacenter N c. is greater when G is low Y d. is zero 9537: When the height of the metacenter is less than the height of the center of gravity of a vessel, the upright equilibrium position is __________.
N a. stable N b. neutral Y c. unstable N d. negative