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.
22: An inert gas system installed on a tanker is designed to __________.
N a. aid in the stripping and cleaning of cargo tanks N b. increase the rate of discharge of cargo N c. force toxic and explosive fumes from a cargo tank to vent to the outside atmosphere Y d. lower the oxygen levels inside cargo tanks, making explosion nearly impossible 125: Addition of weight to a vessel will ALWAYS __________.
Y a. reduce reserve buoyancy N b. increase righting moments N c. increase GM N d. All of the above 287: The Master shall insure that the Emergency Position Indicating Radio beacon (EPIRB) is __________.
N a. secured inside the wheelhouse N b. tested annually Y c. tested monthly N d. secured in the emergency locker 390: A tank which carries liquid is dangerous to the stability of a vessel when it is __________.
N a. low in the vessel N b. completely empty N c. completely full Y d. slack 577: All towing vessels of 26 feet or longer while navigating are required to carry which item?
N a. At least two lifeboats Y b. A radiotelephone N c. A radio direction finder N d. None of the above 578: When fighting fires in spaces containing bottles of LPG (liquefied petroleum gas), you should __________.
N a. attempt to isolate the fire from the LPG Y b. cool the bottles or remove them from the fire area N c. see that the valves on all LPG bottles are closed N d. place insulating material over the bottles 581: You are ordering ships' stores that are NOT consumer commodities. Which statement is TRUE?
N a. All flammable liquids must be stowed in the paint locker or specially constructed integral tanks. Y b. The label of a hazardous ships' store must include instructions for safe stowage. N c. Replacement CO2 cylinders for the fixed fire fighting system must have been tested within 8 years of receipt. N d. Cartridges for the line throwing appliance must be stored in the portable magazine chest after receipt. 708: Removing which will extinguish a fire?
N a. Nitrogen N b. Carbon dioxide N c. Sodium Y d. Oxygen 733: Lifeboat hatchets should be __________.
N a. kept in a locker Y b. secured at each end of the boat with a lanyard N c. kept next to the boat coxswain N d. kept in the emergency locker on the ship and brought to the lifeboat when needed 784: While communicating with a shore station concerning an injured female, your message should indicate the subject's age is 32. Which code would your message contain?
N a. MAO 32 N b. MAJ 32 N c. MAL 32 Y d. MAK 32 846: If a lifeboat is stowed 40 feet above the light water draft and 200 feet from the bow, how long must the sea painter be?
Y a. 80 feet N b. 160 feet N c. Sufficiently long enough to reach the water when the vessel has an adverse list of 15° N d. One third the length from the bow to where the lifeboat is stowed 1004: The lifesaving signal used to indicate, "Landing here highly dangerous" is __________.
N a. firing of a white star signal Y b. firing of a red star signal N c. vertical motion of a red light N d. code letter "K" given by light or sound signaling apparatus 1280: On which type davit does the davit head stay at the same height?
Y a. Radial N b. Sheath-screw N c. Quadrantal N d. Gravity 1356: What is placed on the under side of an inflatable liferaft to help prevent it from being skidded by the wind or overturned?
Y a. Water pockets N b. A keel N c. Strikes N d. Sea anchor 1515: You see an iceberg that has not been reported. What kind of radio message do you transmit to warn others?
Y a. Safety message N b. Urgency message N c. Distress message N d. Routine message 1520: When operating the air supply system in a covered lifeboat the __________.
N a. fuel supply valve should be closed Y b. hatches, doors, and oar ports should be closed N c. air cylinder shut-off valve should be closed N d. engine should be shut off 1523: The term "oil" as used in the Oil Pollution Regulations means __________.
N a. fuel oil N b. sludge N c. oil refuse Y d. All of the above 1594: Which statement is TRUE concerning buoyant work vests aboard tank vessels?
N a. They may be worn while working on deck but not while working over the side. Y b. They must be used only under supervision of a designated ship's officer. N c. They will be accepted for up to 10% of the required life preservers. N d. They may be worn during drills. 1647: Electrical wiring on all "T-Boats" must be __________.
N a. concealed to prevent mechanical damage N b. concealed so the boat can be maintained more easily Y c. protected from the weather N d. in an accessible place behind the ceiling 1942: Which EPIRB transmits a distress alert that is received and relayed by an INMARSAT satellite?
N a. Class A EPIRBs N b. Class B EPIRBs Y c. L-Band EPIRBs N d. Category I EPIRBs 1968: Which categories of NAVTEX messages may not be selectively rejected through receiver programming?
N a. Navigational warnings N b. Weather warnings N c. SAR information Y d. All of the above 2003: Who is responsible for maintaining the logbook on a mobile offshore drilling unit?
Y a. The person in charge N b. The safety man N c. The rig superintendent N d. The driller 2040: You have 360 tons of below deck tonnage and 145 tons of above deck cargo on board. You must load 220 tons of liquid mud below deck. How much more deck cargo can you load? (See illustration D036DG, stability letter for M.V. Hudson.) (D036DG )
N a. 22 tons N b. 48 tons Y c. 94 tons N d. 239 tons 2090: You have 520 tons of below deck tonnage including liquid mud. Your existing deck cargo is 160 tons with a VCG above the deck of 2.7 feet. What is the maximum cargo tonnage you are permitted to load? (See the stability letter for the M.V. Hudson illustration D036DG.) (D036DG )
Y a. 84 tons N b. 160 tons N c. 244 tons N d. 317 tons 2188: You have 6 containers of rig supplies each measuring 8'L by 4'B by 3'H and weighing 1.6 tons each. Each container is stowed on deck. What is the maximum VCG permitted of the remaining cargo if you are carrying rig water and load to maximum capacity? (D037DG )
N a. 0.4 foot N b. 0.9 foot N c. 1.75 feet Y d. 2.18 feet 2471: The device that allows a floating MODU to sway without bending the marine riser system is the __________.
N a. yaw joint N b. sway joint N c. slip joint Y d. flex or ball joint 2478: Depending on its concentration, which product(s) can be classified as either grade D or E?
N a. Sulfuric acid Y b. Formaldehyde solutions 37% to 50% N c. 1,1,1-trichloroethane N d. All of the above 2792: Your vessel's drafts are: FWD 18'-06", AFT 19'-01"; and the KG is 18.2 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the righting arm at 35° inclination.
N a. 1.8 feet N b. 3.0 feet N c. 4.7 feet Y d. 5.8 feet 2840: If a vessel loads 400 tons of deck cargo resulting in a GM of -0.2 feet on 9000 tons of displacement, what will be the angle of loll? (Use the information in Section 1, the blue pages, of the Stability Data Reference Book)
N a. 16° N b. 15° N c. 12° Y d. 9° 2978: Which equipment is not required for a life float? (small passenger vessel regulations)
N a. Paddles N b. Light N c. Painter Y d. Compass 3034: Your sailing drafts are: FWD 14'-04", AFT 16'-02" and the GM is 3.0 feet. What will be the angle of list if #5 port double bottom (capacity 195 tons, VCG 2.6 feet, and 18.5 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. 4° Y b. 8° N c. 13° N d. 16° 3077: The purpose of the inclining experiment on a MODU is to determine the __________.
Y a. lightweight and lightweight center of gravity location N b. position of the center of buoyancy N c. position of the metacenter N d. maximum load line 3254: All uninspected motor vessels constructed after 25 April 1940, which use fuel with a flash point of 110°F (43°C) or less, shall have at least what number of ventilator ducts for the removal of explosive or flammable gases from every engine and fuel tank compartment? (Uninspected Vessel Regulations)
N a. 1 Y b. 2 N c. 3 N d. 4 3413: With no environmental forces on the DEEP DRILLER, the average of the forward drafts is 59.0 feet, and the average of the aft drafts is 61.0 feet. KGL is 51.13 feet. What is the value of LCG?
N a. -0.12 foot N b. 0.12 foot Y c. 2.11 feet N d. 2.35 feet 3418: Your 600 GT vessel must carry a line-throwing appliance if it is certificated for __________.
N a. river service N b. Great Lakes service Y c. coastwise service N d. None of the above 3427: A semisubmersible, 200 feet in length between draft marks with the LCF 10 feet aft of amidships, records the following drafts: Port Forward 64'-09"; Port Aft 68'-09"; Starboard Forward 59'-09"; and Starboard Aft 63'-09". What is the trim?
N a. 8 feet by the stern Y b. 4 feet by the stern N c. 2 feet by the stern N d. 4 feet by the head 3625: The DEEP DRILLER is on location during a storm. Windward anchor tensions begin to exceed the test tensions. To reduce tensions while minimizing offset over the well, you should __________.
N a. increase tension on the leeward chain N b. pay out more chain on the windward side Y c. reduce tension on the leeward chains N d. connect an emergency tow wire to the work boat 3639: Which condition represents the appropriate time for setting off distress flares and rockets?
Y a. Only when there is a chance of their being seen by rescue vessels N b. At half hour intervals N c. At one hour intervals N d. Immediately upon abandoning the vessel 3670: On a passenger vessel with stateroom accommodations, which space would NOT be required to be checked by the patrol between 10 pm and 6 am?
N a. galley N b. public spaces with an automatic fire detection system Y c. pilothouse N d. weather decks 3685: While drilling loaded as shown in Sample Load Form #4 (Drilling), the DEEP DRILLER suffers an unexpected but slowly increasing starboard and aft inclination. The wind and waves are light. This inclination could have been caused by __________.
N a. the failure of mooring lines 6 and 7 N b. the drilling crew dumping the mud N c. the drill string breaking Y d. ballast tanks equalizing into tank 10S 3779: If more than one liferaft is manned after the vessel has sunk, __________.
N a. each raft should go in a different direction in search of land N b. the possibility of a search aircraft finding you is increased by spreading out N c. reduce the number of liferafts by getting as many people as possible into as few rafts as possible Y d. tie each of the rafts together and try to stay in a single group 4097: The DEEP DRILLER is loaded as shown in the Sample Load Form #2 (Ballasting to Survival). What is the new height of the longitudinal metacenter if all the bulk materials are discharged?
N a. 61.34 feet N b. 62.13 feet Y c. 62.35 feet N d. 64.00 feet 4113: The DEEP DRILLER is loaded as shown in the Sample Load Form #2 (Ballasting to Survival). What is the metacentric height corrected for transverse free surface effects if 100.76 long tons of ballast are added to Ballast Tank #8S to replace the discharge of all bulk materials?
N a. 10.42 feet N b. 10.87 feet N c. 11.50 feet Y d. 12.13 feet 4175: How much non-liquid deck load can the DEEP DRILLER, loaded as shown in the sample Load Form #4 (Drilling), accept if the weight is placed at a VCG of 130 feet? Ballast added or discharged to maintain draft at 60 feet is done so at 10 feet.
N a. 461.9 long tons Y b. 457.5 long tons N c. 388.8 long tons N d. 323.1 long tons 4713: When the COASTAL DRILLER is loaded as shown in the sample load form #3 (drilling), the hook load is placed in the pipe racks. What would be the new variable load?
N a. 2,381.0 kips N b. 3,381.0 kips Y c. 3,658.8 kips N d. 4,381.0 kips 5495: Extended cyclical variations in tensions will cause an anchor chain to break due to __________.
Y a. fatigue N b. corrosion N c. distortion N d. abrasion 5541: What is the "holding power ratio" of an anchor?
Y a. Maximum mooring line tension divided by the anchor's weight in air N b. Anchor's weight in air divided by the maximum mooring line tension N c. Preloading tension divided by the anchor's weight in air N d. Operating tension divided by the anchor's weight in air 5555: The fluke angle of an anchor system is the angle between the __________.
Y a. flukes and the shank N b. shank and the sea bottom N c. mooring line and the sea bottom N d. flukes and the shackle 5811: The unit used to measure anchor line tensions in the offshore drilling industry is the __________.
N a. long ton N b. short ton N c. metric ton Y d. Kip 6261: When should the emergency position-indicating radio beacon be activated after abandoning a MODU?
Y a. Immediately N b. After one hour N c. Only when another vessel is in sight N d. Only after sunset 6515: While off-loading from an offshore supply vessel with the crane, the wind increases in strength and changes direction significantly, you should __________.
N a. expedite off-loading N b. stop off-loading, but keep the offshore supply vessel in the present location N c. continue off-loading with no changes Y d. move the offshore supply vessel to the downwind side 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 7405: VHF Channel 6 is used exclusively for what kind of communications?
N a. Radio checks and time checks Y b. Inter-vessel safety and search and rescue N c. Working with helicopters N d. Radio direction finding 8543: It is proposed to moor the DEEP DRILLER in 600 feet of water in a region in which the effective wind velocity could reach 80 knots, significant wave height could reach 30 feet, and the current could be 1.5 knots. If these conditions occurred at the same time from the bow, the environmental force due to the wind would be __________.
N a. 595 kips Y b. 475 kips N c. 425 kips N d. 300 kips 9275: A jack-up displacing 15,000 kips has a KG of 20 feet. The legs weighing 3,500 kips are lowered 100 feet. What is the new KG?
N a. 23.33 feet N b. 18.67 feet N c. 4.67 feet Y d. -3.33 feet 9275: A jack-up displacing 15,000 kips has a KG of 20 feet. The legs weighing 3,500 kips are lowered 100 feet. What is the new KG?
N a. 23.33 feet N b. 18.67 feet N c. 4.67 feet Y d. -3.33 feet 9311: Basic emergency care for third degree electrical burn is to __________.
N a. flood the burned area with warm water for two minutes N b. brush away the charred skin and wrap the burned area Y c. cover the burned area with a clean cloth and transport the patient to a medical facility N d. apply ointment or spray to the burned area and wrap with a clean cloth 9467: When inclined to an angle of list, the value of the righting moment is __________.
N a. negative Y b. zero N c. positive N d. maximum 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 9703: Which of the following statements is/are FALSE in regard to Ro-Ro vessels' spaces that are "specially suitable for vehicles"?
N a. The spaces shall be fitted with an approved fire or smoke detecting system. N b. The spaces shall be fitted with an approved fixed fire extinguishing system. Y c. The installation of a water sprinkler extinguishing system is prohibited. N d. All of the above