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.
37: What is the generally accepted method of determining whether the atmosphere within a cargo tank is explosive, too rich, or too lean to support combustion?
N a. Use the open flame test on a small sample that has been taken from the tank. N b. Send a gas sample ashore for laboratory analysis. N c. Enter the tank with an oxygen analyzer. Y d. Use an explosimeter. 104: In the International Code of Signals, the code signal meaning "I require immediate assistance" is __________.
N a. AE Y b. CB N c. DX N d. CP 730: The percentage of the total surface area or volume of a flooded compartment that can be occupied by water caused by damage is known as __________.
N a. one compartment standard N b. center of flotation Y c. permeability N d. form gain 741: You are ordering ship's stores. Which statement is TRUE?
N a. Stores such as line, rags, mattresses, linens, etc. must be treated to be fire retardant. N b. Stores certified for use on uninspected vessels may be identified by the certification number used by Underwriter's Laboratories. Y c. A portable container of a flammable liquid used as fuel for portable auxiliary equipment must be stowed in a paint locker or at a designated open location. N d. Acetylene may be in a ship's storeroom in quantities not exceeding 6000 cubic feet. 752: Which statement describes the primary process by which fires are extinguished by dry chemical?
N a. The stream of dry chemical powder cools the fire. Y b. The dry chemical powder attacks the fuel and oxygen chain reaction. N c. The powder forms a solid coating over the surface. N d. The dry chemical smothers the fire. 782: On small passenger vessels what device must you install under carburetors, other than the downdraft type, to allow ready removal of fuel leakage?
Y a. A drip collector N b. A funnel and a tin can N c. A sponge N d. Suitable absorbent material 860: A ship's forward draft is 22'-04" and its after draft is 24'-00". The draft amidships is 23'-04". This indicates a concentration of weight __________.
N a. at the bow N b. in the lower holds Y c. amidships N d. at the ends 876: Which person may command a lifeboat in ocean service?
N a. Licensed deck officer N b. Able seaman N c. Certificated person Y d. All of the above 894: Signals between an icebreaker and an assisted vessel may NOT be given by __________.
N a. whistle N b. flag hoist N c. radiotelephone Y d. radiotelegraph 967: Gasoline fuel tanks on small passenger vessels must be installed __________.
Y a. independent of the hull N b. on a level higher than the engine N c. in a cool and insulated place N d. so the fuel line to the engine leads from a shut-off valve at the bottom of the tank 1193: On small passenger, vessels spaces containing batteries require good ventilation because it __________.
N a. adds as much as 2 volts to battery performance N b. supplies extra nitrogen for the battery Y c. helps dissipate flammable gas accumulations N d. allows less soda water to be used in the diodes 1378: The most effective cooling agent among those normally used to fight fires is __________.
Y a. water fog or spray N b. chemical foam N c. mechanical foam N d. carbon dioxide 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 1519: All oil spills must be reported to the __________.
N a. U.S. Corps of Engineers Y b. U.S. Coast Guard N c. local police N d. local fire department 1634: To prevent the spread of fire by convection you should __________.
Y a. close all openings to the area N b. shut off all electrical power N c. remove combustibles from direct exposure N d. cool the bulkhead around the fire 1713: Line throwing equipment should NOT be operated __________.
N a. during a rain storm Y b. in an explosive atmosphere N c. near a liferaft canister N d. by other than licensed officers 1782: Which channel has been designated for on-scene communications in GMDSS?
N a. 24 N b. 2182 N c. 70 Y d. 16 and 2174.5 1789: How long must GMDSS Radio Logs be retained onboard the ship in original form?
Y a. 30 days N b. 3 months N c. 6 months N d. 1 year 1880: The primary reason for placing covers over storage batteries is to __________.
N a. prevent the accumulation of explosive gases N b. protect the hull from leaking electrolyte N c. prevent movement of the battery in rough waters Y d. protect against accidental shorting across terminals 1957: The first AMVER position report must be sent within how many hours of departure?
N a. 12 Y b. 24 N c. 36 N d. 48 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 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 2153: On offshore drilling units each ring life buoy must be marked, in a contrasting color, with the unit's __________.
Y a. name and port of registry N b. owner and port of registry N c. port of registry and identification number N d. name and owner 2178: Your drafts are: FWD 6'-01", AFT 6'-05". From past experience, you know that the vessel will increase her draft by 1 inch for every 7 tons loaded. There is rig water on board and 20 tons of deck cargo. How many more tons of cargo can be loaded while maintaining the same trim? (D037DG )
N a. none N b. 10.5 tons Y c. 14.0 tons N d. 17.5 tons 2350: What is NOT required of the cargo tank venting on a tank barge carrying grade A liquids?
N a. Each cargo tank must have a vent. N b. A vent header must be fitted with a pressure-vacuum valve. Y c. The diameter of the vent must be greater than 4 inches in diameter. N d. The vent must extend to a reasonable height above the weather deck. 2543: The boom stops are installed on an offshore crane to __________.
Y a. prevent the boom from being raised too high N b. prevent the boom from swinging N c. support the boom when not in use N d. prevent the boom from being lowered 2583: How can rescue personnel detect that a SART is transmitting in the immediate vicinity?
Y a. The SART's blips on the PPI will become arcs and eventually become concentric circles. N b. The DSC unit will react to the SART's signal and respond with the two-tone autoalarm. N c. The SART can provide an approximate location to within a two nautical mile radius per IMO standards. N d. The SART signal appears as a target which comes and goes; the effect of heavy swells on a SART. 2760: According to the regulations, what type of gauging is required for a cargo of butadiene?
N a. Open Y b. Restricted N c. Closed N d. None 2767: Forces within a drilling unit have caused a difference between the starboard and port drafts. This difference is __________.
Y a. list N b. heel N c. trim N d. flotation 2905: Each emergency light must be marked with __________.
Y a. the letter "E" N b. an arrow pointing to the nearest exit N c. a no-smoking symbol N d. the word "DANGER" 2961: The Certificate of Inspection issued to a vessel carrying more than six passengers must be __________. (small passenger vessel regulations)
Y a. posted on board under glass, if practical N b. posted on the dock where passengers are embarked N c. retained at the owner's principal place of business N d. kept on file by the Collector of Customs 3270: Which portable fire extinguisher is required just outside the exit of the propulsion machinery space of a 75-ton passenger vessel?
N a. 2-1/2 gallon foam extinguisher Y b. 15 lb. CO2 extinguisher N c. 2 lb. dry chemical extinguisher N d. None of the above 3336: Which statement is TRUE concerning gasoline vapors on board a vessel?
Y a. They are heavier than air and will settle in the lowest part of the vessel. N b. They are lighter than air and will settle in the highest part of the vessel. N c. They should be vented into the engine to improve combustion. N d. They should be vented into the wheelhouse. 3360: The premixed foam agent in fixed and semiportable fire extinguishing systems should be replaced __________. (small passenger vessel regulations)
N a. every 12 months N b. every 18 months Y c. every 36 months N d. only when used 3466: A sea anchor is __________.
N a. a heavy metal anchor with an extra long line used to anchor in deep water Y b. a cone shaped bag used to slow down the wind drift effect N c. a pad eye to which the sea painter is made fast N d. made of wood if it is of an approved type 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" 3797: What are the longitudinal moments for the contents of P-tank #1 of the DEEP DRILLER if the ullage is 2.3 feet?
Y a. -3,096 ft-tons N b. -3,880 ft-tons N c. -4,663 ft-tons N d. -6,509 ft-tons 3947: The midships house of your break bulk ship is constructed with an interior stair tower from the main deck to the bridge. Under what circumstances may the doors from each deck to the stair tower be kept open when underway?
N a. They can be kept open if the Muster List ("Station Bill") has personnel designated to close them in case of fire. Y b. They may be kept open if they can be automatically closed from the bridge. N c. They may be kept open if the ventilation or air conditioning system is shut down. N d. They are to be kept closed at all times. 3974: In the illustration, the sea anchor is shown as item number_____. (D014SA )
N a. 7 N b. 13 N c. 15 Y d. 14 4050: The owner or Master of a towing vessel shall ensure that all tests and inspections of gear take place and are logged ___________ .
Y a. when a new Master assumes command N b. daily, at 0800 local zone time N c. weekly, before 2400 Saturday N d. immediately after assuming the watch 4070: Motor-propelled lifeboats are required to be fitted with which of the following?
Y a. Compartments for the storage of canned drinking water N b. Ballast tanks to prevent the boat from capsizing N c. An air starter on the diesel engine N d. Auxiliary mechanical propulsion (Fleming gear) 4475: While the COASTAL DRILLER is elevated, the out-of-level alarm indicates that hull inclination exceeds 0.3°. What should you do?
N a. Raise the high corner. N b. Raise the low corner. N c. Raise unit to proper air gap and inspect for damage. Y d. Confirm operation of out-of-level alarm. 4797: The COASTAL DRILLER is loaded as shown in the Sample Load Form #1 (Rig Move). What is the new TCG if the entire contents of drill water tanks 6 and 7 are discharged?
Y a. -0.23 foot N b. 0.00 foot N c. 0.23 foot N d. 0.54 foot 5101: When a marine surveyor is employed to assist in the move of a mobile offshore drilling unit, he __________.
N a. becomes responsible for the safe movement of the rig N b. relieves the Offshore Installation Manager at the moment the rig is free from the bottom N c. must be designated as the person in charge of the rig Y d. is a specialist who is hired to provide advice and guidance on aspects of the move 5113: A tropical storm is building strength some distance from your MODU. Waves are coming from the east, with periods increasing from 5 seconds to 15 seconds. The swell is from the east. Where was the storm when these new swells were generated?
N a. To the north of you N b. To the south of you Y c. To the east of you N d. To the west of you 5535: What effect is achieved from soaking an anchor?
Y a. It allows the bottom soil to consolidate. N b. It gives the palms time to trip the anchor. N c. It stabilizes the mooring system. N d. It lubricates the anchor for better tripping. 6253: The Coast Guard requires machinery spaces and enclosed mud handling spaces to have __________.
Y a. remote ventilation shutdowns N b. remote pump shutdowns N c. alternative control stations N d. smoke and/or fire detection system 6255: Control of fire on a MODU should be addressed __________.
N a. immediately after restoring vital services Y b. immediately N c. following control of flooding N d. following establishment of fire boundaries 6703: The person-in-charge of a mobile offshore drilling unit must be designated by the __________.
N a. Coast Guard N b. Minerals Management Service N c. operator or his agent Y d. owner or his agent 6801: Where must the 0mster or person in charge of a MODU record the date of each test of emergency lighting and power systems and the condition and performance of the equipment?
N a. On the Certificate of Inspection N b. On the Muster List ("Station Bill") N c. In the Operations Manual Y d. In either the official or unofficial log 7031: Symptoms of sugar diabetes include __________.
Y a. increased appetite and thirst N b. decreased appetite and thirst N c. gain in weight N d. elevated temperature 7843: After putting on a self-contained breathing apparatus, you open the air supply and hear a continuous ringing of a bell. What does this mean?
N a. The unit is working properly. N b. The face mask is not sealed properly. Y c. The air bottle needs to be refilled. N d. The air supply hose has a leak. 8201: While on an ocean tow, the COASTAL DRILLER is threatened with the approach of a severe storm. Including the time required to place the generators on-line, the approximate time required to lower the legs from a TOC (tip-of-can) position of 12.38 feet to 60.5 feet is __________.
N a. 8 minutes N b. 32 minutes N c. 40 minutes Y d. 47 minutes 8361: What is the effect of heated intake air on a diesel engine?
N a. Increases efficiency N b. Increases engine horsepower N c. Increases engine life Y d. Reduces engine horsepower 8647: While the DEEP DRILLER is loaded as shown in Sample Form #4 (Drilling), casing is accidentally dropped over the port side. Because the tank sounding level and port forward inclination are rapidly increasing, you decide that tank 1P is damaged. Your best countermeasure is to __________.
Y a. deballast from tank 2P N b. dump the mud N c. counterflood into 9S N d. counterflood into C3S 8703: The DEEP DRILLER is loaded as shown in Sample Load Form #5 (Survival). While the unit is deballasting, port valve 5 fails in the closed position. You may deballast from tank 2P by pumping from tank 1P after opening valves 6 and __________.
N a. 35 N b. 7 N c. 4 Y d. 2 8853: While underway in a field move with the lower hulls awash, a semisubmersible has a maximum allowable KG of 63.69 feet; KMT is 65.12 and KML is 64.92. The KGT is 56.13 and KGL is 55.89. What is the margin on the maximum allowable KG?
N a. 1.43 feet Y b. 7.56 feet N c. 7.80 feet N d. 8.99 feet 8981: The important initial stability parameter, GM, is the __________.
Y a. metacentric height N b. height of the metacenter above the keel N c. height of the center of buoyancy above the keel N d. height of the center of gravity above the keel 9553: When the height of the metacenter is greater than the height of the center of gravity, a vessel is in __________.
Y a. stable equilibrium N b. neutral equilibrium N c. unstable equilibrium N d. negative equilibrium 9632: In a fixed carbon dioxide extinguishing system for a machinery space, designed WITH a stop valve in the line leading to the protected space, the flow of CO2 is established by actuating __________.
N a. one control Y b. two controls N c. three controls N d. none of the above