Q346 - Navigation and Deck General/Safety, USCG prep certification 2026

Progress: 24% (23/94)

Learning progress ?

1. Cargo tanks on barges fitted with goose neck vents and flame screens are limited to carrying which grade of cargo?Not learned 2. What is required of the access to a cargo pumproom on a tank vessel carrying grades A, B, C or D liquid cargoes?Not learned 3. Which of the signals listed is required to be displayed during the day while bunkering?Not learned 4. Each distress signal and self-activated smoke signal must be replaced not later than the marked date of expiration, or not more than how many months from the date of manufacture?Not learned 5. Which extinguishing agent is most likely to allow reflash as a result of not cooling the fuel below its ignition temperature?Not learned 6. Which portable fire extinguisher should be used on a class C fire on board a vessel?Not learned 7. Recharging a previously used cartridge-operated dry chemical fire extinguisher is accomplished by __________.Not learned 8. No outlet on a fire hydrant may point above the horizontal in order to __________.Not learned 9. Your tankship has 40 gallons of 6% foam concentrate aboard. Approximately how much foam solution can be produced from this supply?Not learned 10. The carbon dioxide cylinders of a fixed fire extinguishing system may be located inside the protected space, if the quantity of CO2 required to protect that space is not more than which amount?Not learned 11. CO2 cylinders must be recharged when the weight of the charge in the cylinder is less than what percent of the stamped full weight of the charge?Not learned 12. Where should muster lists be posted?Not learned 13. All personnel on board a vessel should be familiar with the rescue boat's __________.Not learned 14. A man who is conscious has fallen overboard is being picked up by a lifeboat. In a mild breeze how should the boat approach the person in the water?Not learned 15. If you reach shore in a liferaft, the first thing to do is __________.Not learned 16. When can a work vest be substituted for a lifejacket in the total count of the required lifesaving gear?Not learned 17. What is the purpose of rigging frapping lines on lifeboat falls?Not learned 18. What does the lubber's line on a magnetic compass indicate?Not learned 19. An inflatable liferaft can be launched by __________.Not learned 20. After having thrown the liferaft and stowage container into the water, how is the liferaft inflated?Not learned 21. If your vessel is equipped with inflatable liferafts, how should they be maintained?Not learned 22. When the height of the metacenter is greater than the height of the center of gravity, the upright equilibrium position is stable and stability is __________.Not learned 23. Which term defines the difference between the forward and aft drafts?Not learned 24. Which term is given to the difference between the starboard and port drafts caused by shifting a weight transversely in the vessel?Not learned 25. When a wind force causes a floating MODU to heel to a static angle, the __________.Not learned 26. When should the control of flooding of your vessel be addressed?Not learned 27. If a MODU takes a sudden severe list or trim from an unknown cause, you should FIRST __________.Not learned 28. After measuring the length to which a section of shoring should be cut, you should cut the shoring __________.Not learned 29. The order of importance in addressing damage control is __________.Not learned 30. Which term describes the strengthening of damaged bulkheads by using wood or steel?Not learned 31. In plugging submerged holes; why are rags, wedges, and other materials used in conjunction with plugs?Not learned 32. When shoring a damaged bulkhead, effort should be taken to spread the pressure over the __________.Not learned 33. What is the objective of shoring a damaged bulkhead?Not learned 34. The overspeeding of the diesel engine driving an electric generator could cause __________.Not learned 35. In accordance with Coast Guard Regulations, which statement is TRUE with regards to Coast Guard approved buoyant work vests?Not learned 36. According to regulations when, if ever, may cargo hatches on Great Lakes vessels, with more than 6 feet of freeboard, be left uncovered or open while the vessel is being navigated?Not learned 37. According to regulations, how many hand portable fire extinguishers are required in the cargo tank area of an unmanned, cargo pump-equipped tank barge (90 GT) while engaged in transferring grade B flammable liquids?Not learned 38. Which agency assigns Load lines for U.S. vessels?Not learned 39. Which agency must approve the safety equipment on board inspected vessels?Not learned 40. When anchoring in a clay bottom, what is one hazard that may cause the anchor to drag?Not learned 41. An annual inspection of a tank vessel shall be made between which of the following months while the Certificate of Inspection is valid?Not learned 42. Which is the best method to stop a vessel from dragging anchor in a sand bottom?Not learned 43. Which is the proper name given to a block that can be opened at the hook or shackle end to receive a bight of the line?Not learned 44. A block and tackle is "rove to advantage". What does this mean?Not learned 45. The boom indicator tells the operator at what angle the boom is compared to the __________.Not learned 46. The boom stops on a pedestal crane prevent the boom from __________.Not learned 47. A breeches buoy is being rigged from the shore to a stranded vessel. The initial shot line passed to the vessel is normally made fast to a __________.Not learned 48. When bunkering at a dock which of the following signals must be displayed?Not learned 49. Which term defines cargo that is highly susceptible to damage by tainting from odorous cargo?Not learned 50. Cargo hose carried on tank vessels must be designed to withstand the pressure of the shutoff head of the cargo pump or pump relief valve setting, but in no case should it be less than __________.Not learned 51. On a cargo vessels which fire extinguisher is considered semi-portable?Not learned 52. Cargo vessels being navigated, and fitted with emergency lighting and power systems, shall have their emergency systems tested at which interval?Not learned 53. Under the Carriage of Goods by Sea Act of 1936, a vessel will be liable for damage to cargo when the damage arises out of which situation?Not learned 54. Which condition must be met during a stability test on an inspected vessel?Not learned 55. To determine the weight capacity of a deck in a cargo hold, which reference would you refer to?Not learned 56. What is the difference between net tonnage and gross tonnage?Not learned 57. Which document is NOT required by law to be posted aboard a vessel?Not learned 58. Fire hose stations shall be marked in red letters and figures such as Fire Station No. "1", "2", "3", etc. Which is the minimum height of the letters and figures required by regulation?Not learned 59. Which of the following is considered to be a B-II portable fire extinguisher?Not learned 60. Which of the following statements is/are TRUE in regard to Ro-Ro vessels' spaces which are "specially suitable for vehicles"?Not learned 61. The force acting on a single cargo runner which is vertically lifting or lowering a load is greatest when __________.Not learned 62. The galley on your cargo vessel has an area of 2,900 square feet. What will fulfill the requirements for fire protection?Not learned 63. The galley on your cargo vessel has an area of 2,900 square feet. What will fulfill the requirements for fire protection?Not learned 64. Which is TRUE of the Great Lakes Edition of the Notice to Mariners?Not learned 65. What is the group of markings shown in illustration D003DG below called?Not learned 66. Where is the heel block located on a boom?Not learned 67. On an inspected vessel, which abbreviation refers to the horizontal distance between perpendiculars taken at the forward-most and the after-most points on the waterline at her deepest operating draft?Not learned 68. On an inspected vessel, when may a stability test be dispensed with?Not learned 69. The international shore connection required on a MODU is designed to __________.Not learned 70. On an international voyage, a cargo vessel of 1,000 GT or more operating two fire pumps simultaneously is required to have a minimum pitot tube pressure from the two highest outlets. What is the minimum required pressure?Not learned 71. Which item do you NOT have to provide for the Coast Guard representative at the time of a stability test?Not learned 72. Which item is NOT required to be marked with the vessel's name?Not learned 73. Keeping the draft at or below the load line mark will ensure that the vessel has which of the following?Not learned 74. If you are loading fruit in reefer spaces and you notice that the fruit is beginning to mold, which action should you take?Not learned 75. You are loading at port A, governed by the summer load line mark, for a voyage to port B, governed by the winter mark. The fresh water allowance is 10", and the hydrometer reads 1.020. Which statement is TRUE?Not learned 76. You are loading in a port governed by the tropical load line mark for a voyage to a port governed by the winter mark. The freshwater allowance is 5 inches, and the hydrometer reads 1.005. Which statement is TRUE?Not learned 77. What is the mechanical advantage of tackle number 1 as shown in illustration D029DG below?Not learned 78. What is the mechanical advantage of tackle number 10 as shown in illustration D029DG below?Not learned 79. What is the minimum number of fire pumps required on a cargo vessel of 900 GT?Not learned 80. Which is the BEST action to take if your vessel is dragging her anchor in a strong wind?Not learned 81. Which is the BEST method of determining if a vessel is dragging anchor?Not learned 82. Cargo pumprooms on tank vessels, constructed in 1965, handling grade C liquid cargo shall have power ventilation systems. What is time requirement for these ventilation systems to completely change the air?Not learned 83. What is the mechanical advantage of tackle number 6 as shown in illustration D029DG below?Not learned 84. What is the name of tackle number 12 as shown in illustration D029DG below?Not learned 85. What is the name of tackle number 2 as shown in illustration D029DG below?Not learned 86. What is the name of tackle number 8 as shown in illustration D029DG?Not learned 87. What is one of the main purposes of dunnage?Not learned 88. You are planning to anchor in an area where several anchors have been lost due to fouling. What precaution should you take?Not learned 89. Which is the proper term for a band or collar on the top end of a boom to which the topping lift, midships guy, and outboard guys are secured?Not learned 90. The stowage factor for a cargo is based cubic feet and which other item?Not learned 91. Which it TRUE concerning the cheek length of a block in inches?Not learned 92. In the United States, which organization sets the load line markings?Not learned 93. How much force would be required to lift a weight of 200 lbs. using a gun tackle rigged to disadvantage (do not consider friction)?Not learned 94. How much weight can you lift by applying 100 lbs. of force to a twofold purchase rigged to disadvantage (do not consider friction)?Not learned 95. Regulations require that cargo pumps in tank vessels carrying grade D liquid cargo shall be isolated from sources of vapor ignition by which means?Not learned 96. Who must ensure that the emergency lighting and power systems on cargo vessels are operated at least weekly?Not learned 97. Where must a pressure gauge for each fire pump on a tankship be located?Not learned 98. Which is the name given to the grooved wheel inside a block?Not learned 99. What is the name of the mark indicated by the letter D in illustration D003DG below?Not learned 100. How is the number of pounds of carbon dioxide required for each cargo space on a cargo vessel computed?Not learned 101. Pedestal cranes have limit switches to restrict the movement of which function?Not learned 102. Pedestal cranes have limit switches to restrict the movement of which function?Not learned 103. The periodic weight testing of a vessel's cargo booms may be performed by which organization?Not learned 104. Which portable fire extinguisher is classified as a type B-III extinguisher?Not learned 105. Which is a precaution you should take before bunkering?Not learned 106. Which can be prevented only by segregating two lots of cargo into separate holds?Not learned 107. What is the primary purpose of a load line?Not learned 108. What provides little or no indication that a vessel is dragging anchor?Not learned 109. What is the purpose of a spreader bar when loading cargo?Not learned 110. In reference to accidental oil pollution, the most critical time during bunkering is when __________.Not learned 111. Regulations require that prior to departure on a three-day voyage, the steering gear, whistle, and communications system between the bridge and engine room must be tested prior to departure no earlier than __________.Not learned 112. What are the required number and type of hand portable fire extinguishers to be carried, in the vicinity of the radio room exit, on a tank vessel on an international voyage?Not learned 113. The scuppers had been plugged as required at the time a small oil spill occurs on deck from a leaking dresser coupler. After shutting down the transfer, the engine room should first be informed, and then which action should be taken?Not learned 114. When selecting the fuel oil tanks for the "burn-out" of bunkers during a voyage consideration of all of the following must be taken with the EXCEPTION of __________.Not learned 115. Which term is given to the process of separating both blocks of a tackle to prepare it for reuse?Not learned 116. What size sheave diameter should be used with a 3-inch manila line?Not learned 117. On a ship's crane, the load chart relates the allowable load to the combination of the boom length and __________.Not learned 118. How should you signal the crane operator to stop in an emergency?Not learned 119. How should you signal the crane operator to use the main hoist?Not learned 120. Which of the signals listed is required to be displayed at night while bunkering at a dock?Not learned 121. The signal man assisting the crane operator has his arm extended, his fingers closed, and his thumb pointing downward. This is the signal to __________.Not learned 122. What size block shell should be used with a 4-inch manila line?Not learned 123. When a small craft's anchor fouls in a rocky bottom, how should the first attempt to clear it be made?Not learned 124. A snatch block would most likely be used as a __________.Not learned 125. Which space(s) on your cargo vessel must have a fire detection system?Not learned 126. Which statement about the deck line is TRUE?Not learned 127. Which statement is TRUE regarding the Emergency Position Indicating Radio beacon (EPIRB)?Not learned 128. Which tackle arrangement has the LEAST mechanical advantage?Not learned 129. The tank barge on which you are preparing to load petroleum is required to have on board one B-II fire extinguisher. What does NOT meet this requirement?Not learned 130. On tank vessels, fully charged fire extinguishers are considered semi-portable when they have a gross weight of more than __________.Not learned 131. Which is a TRUE statement concerning the examining of cargo equipment at the time of a vessels Inspection for Certification?Not learned 132. The two courses of action if the underwater hull is severely damaged are to plug the openings or to take which action?Not learned 133. On a vessel of 125,000 GT on an international voyage, how many international shore connection flange(s) is the vessel required to maintain onboard?Not learned 134. Your vessel is anchored in an open roadstead with three shots of chain out on the port anchor. The wind freshens considerably, and the anchor begins to drag. Which action should you take FIRST?Not learned 135. Which vessel is most likely to be loaded full but not down?Not learned 136. Your vessel has the symbol shown in illustration D022DG below inscribed on the side. Which statement concerning this symbol is TRUE?Not learned 137. Your vessel is taking on fuel when a small leak develops in the hose. You order the pumping stopped. Before you resume pumping, you should __________.Not learned 138. What is a wet cargo?Not learned 139. The wire rope used for cargo handling on board your vessel has a safe working load of eight tons. It shall be able to withstand a breaking test load of __________.Not learned 140. How can the accuracy of an azimuth circle be checked?Not learned 141. When adjusting a magnetic compass for error, which is TRUE concerning the deviation table?Not learned 142. What is the basic principle of the magnetic compass?Not learned 143. The chart indicates the variation was 3°45'E in 1988, and the annual change is increasing 6'. If you use the chart in 1991 how much variation should you apply?Not learned 144. Which is TRUE if the compass heading and the magnetic heading are the same?Not learned 145. By convention, what color is the south pole of a magnet painted?Not learned 146. Which corrector will compensate for the deviation which is maximum on intercardinal compass headings?Not learned 147. Deviation is the angle between the __________.Not learned 148. When is the greatest directive horizontal force exerted on the magnetic compass of a vessel?Not learned 149. What is the gyrocompass error resulting from your vessel's movement in OTHER than an east-west direction?Not learned 150. What is the MOST important feature of the material used for making the binnacle of a standard magnetic compass?Not learned 151. Which line connects the points of zero magnetic dip?Not learned 152. Magnets in the binnacles of magnetic compasses are used to reduce which effect?Not learned 153. What do the magnets placed in horizontal trays in the compass binnacle compensate for?Not learned 154. What are the only magnetic compass correctors that correct for both permanent and induced effects of magnetism?Not learned 155. The magnetic compass magnets are acted on by the horizontal component of the Earth's total magnetic force. Where is this magnetic force the GREATEST?Not learned 156. Quadrantal error in a gyrocompass has its GREATEST effect on which of the following?Not learned 157. If a ship is proceeding towards the magnetic equator, which is TRUE concerning the uncorrected deviation due to permanent magnetism?Not learned 158. Which statement about gyrocompass error is TRUE?Not learned 159. Which is TRUE if the compass error of a magnetic compass has no deviation?Not learned 160. Your vessel is proceeding up a channel, and you see a pair of range lights that are in line ahead. The chart indicates that the direction of this pair of lights is 147°T, and the variation is 5°E. If the heading of your vessel at the time of the sighting is 148° per standard magnetic compass, what is the correct deviation?Not learned 161. Your ship is entering port from sea, and you sight a pair of range lights. When in line, they bear 315° per standard magnetic compass. The chart shows that the range bearing is 312°T, and that variation is 6°W. What is the deviation of your compass at the time of the sighting?Not learned 162. Two beacons form a range in the direction of 221.5°T. The range is seen in line from your vessel bearing 223° per gyrocompass. The variation in the area is 4°E. What is the error of your gyrocompass?Not learned 163. Your vessel is proceeding up a channel, and you see a pair of range lights that are in line ahead. The chart indicates that the direction of this pair of lights is 311°T, and the variation is 8°E. If the heading of your vessel at the time of the sighting is 305° per standard magnetic compass, what is the correct deviation?Not learned 164. Your vessel is proceeding down a channel, and you see a pair of range lights that are in line dead ahead. The chart indicates that the direction of this pair of lights is 229°T, and variation is 6°W. If the heading of your vessel at the time of the sighting is 232° per standard magnetic compass, what is the deviation?Not learned 165. A 750-foot passenger vessel operating on the Great Lakes, not subject to SOLAS regulations, is required to carry how many ring life buoys?Not learned 166. You abandoned ship in the North Atlantic and one of the crew members is hypothermic. During a SAR helicopter extraction which lifting device should be avoided when hoisting this patient to the aircraft?Not learned 167. An "ABC" dry chemical fire extinguisher would be LEAST effective against a fire in which situation?Not learned 168. Aboard a vessel, what does dividing the sum of the longitudinal moments by the total weight yield?Not learned 169. In the absence of external forces, the center of buoyancy of an inclined vessel is vertically aligned directly below the __________.Not learned 170. According to the regulations for lifeboat falls, which action must be taken with the falls no later than 5-year intervals?Not learned 171. Which action will affect the trim of a vessel?Not learned 172. Which action must be taken annually concerning inflatable liferafts carried on passenger vessels?Not learned 173. Which action would you take to get low-velocity fog from an all-purpose nozzle?Not learned 174. What is NOT an advantage of double bottom ships?Not learned 175. What is another name for the garboard strake?Not learned 176. What is the best indication of the loading of a diesel engine?Not learned 177. What is the breaking strength of the service lines of the rockets used with an impulse-projected, rocket type line throwing appliance?Not learned 178. In continuous operation, what is the effective range of the 15 pound CO2 extinguisher?Not learned 179. The deck beam brackets of a transversely framed vessel resist which stresses?Not learned 180. Which describes the floors aboard a ship?Not learned 181. Who determines the number of rowing oars that must be carried in a motor-propelled lifeboat on a cargo vessel?Not learned 182. Why are diesel engines considered safer than gasoline engines?Not learned 183. Which describes the difference between the height of the metacenter and the height of the center of gravity of a vessel?Not learned 184. Which is the most effective extinguishing action of dry chemical extinguisher?Not learned 185. When electrical equipment is involved in a fire, where should the stream of dry chemicals be directed?Not learned 186. You are evacuating crew members from a survival craft that has been adrift in the North Atlantic for several days. What could occur if a person suffering from hypothermia is vertically lifted in a rescue sling to the helicopter?Not learned 187. On every vessel, where must distress signals be stowed?Not learned 188. A fire hose has a __________.Not learned 189. If a firefighting situation calls for low-velocity fog which action would you take?Not learned 190. Why should foam be banked off a bulkhead when extinguishing an oil fire?Not learned 191. Foam extinguishes a fire mainly by __________.Not learned 192. Which of the following aspects of a flooded space will most adversely affect transverse stability if it is subject to free communication?Not learned 193. What is NOT a function of the steam drum of a marine water-tube boiler?Not learned 194. Where are the grab rails of a metal lifeboat normally located?Not learned 195. The greatest effect on stability occurs from loose liquids flowing __________.Not learned 196. What does the gross tonnage of a vessel indicate?Not learned 197. When the handle of an all-purpose nozzle is pulled all the way back, it will __________.Not learned 198. When you hear three short blasts on the ship's whistle and the same signal on the general alarm bells, which action should you take?Not learned 199. When the height of the metacenter is less than the height of the center of gravity of a vessel, the upright equilibrium position is referred to by which term?Not learned 200. In illustration D016SA below, what number indicates the frapping line?Not learned 201. In illustration D033DG below, what is the joint indicated by letter D?Not learned 202. In illustration D033DG below, which letter indicates a butt?Not learned 203. In illustration D033DG below, the lower seam of the strake indicated by the letter B is sometimes riveted. Why is this done?Not learned 204. In illustration D033DG below, what is the plating indicated by the letter N known as?Not learned 205. In illustration D033DG below, what is the strake of shell plating indicated by letter H known as?Not learned 206. In illustration D033DG below, what is the structural member indicated by the letter F?Not learned 207. In illustration D033DG below, what is the structural member indicated by the letter K?Not learned 208. In illustration D033DG below, the structural member indicated by the letter K was fitted in segments between continuous longitudinals. It is known as which type of floor?Not learned 209. In illustration D033DG below, what is the structural member indicated by the letter L?Not learned 210. In illustration D033DG below, what is a wooden deck installed on top of the plating lettered N known as?Not learned 211. In the illustration D041DG below, what does symbol 2 represent?Not learned 212. In illustration D041DG below, which is the symbol for amidships?Not learned 213. In illustration D041DG below, which symbol is the reference from which the height of the center of gravity is measured?Not learned 214. If an inflatable liferaft is overturned, it may be righted by which action?Not learned 215. You are involved in an emergency landing of a helicopter on the water. You should inflate your life jacket __________.Not learned 216. Your lifeboat has been adrift for several days when land is sighted. Which procedure should you use to survey a potential site to beach your lifeboat?Not learned 217. The lifeboats on your vessel are stowed on cradles on deck and are handled by sheath-screw boom davits. Which of the following statements about launching a boat is TRUE?Not learned 218. Lifesaving regulations in Subchapter W require that a fire drill include which of the following?Not learned 219. In which location are lifejackets required to be stowed?Not learned 220. When lowering a boat with gravity davits, it will be initially pulled into the embarkation deck by which item?Not learned 221. When should the lubricating oil be changed on a heavy-duty diesel engine?Not learned 222. Which is the major disadvantage of a low-speed diesel as compared to a steam main-propulsion system?Not learned 223. How many ring life buoys should a 700-foot cargo vessel, not subject to SOLAS, navigating the Great Lakes carry?Not learned 224. All marine low-speed diesels are of what design?Not learned 225. Most medium and slow speed diesels are started by what medium?Not learned 226. Which meets the requirement of an independent backup system on an electric start survival craft?Not learned 227. According to the Lifesaving regulations in Subchapter W, fire and abandon ship drills must be held within 24 hours of leaving port if the percentage of the crew that has not participated in drills aboard that particular vessel in the prior month exceeds which percentage?Not learned 228. Which item(s) is/are a 2,000 GT tankship required to carry?Not learned 229. All lifeboats, rescue boats, and rigid-type liferafts shall be stripped, cleaned, and thoroughly overhauled at which time interval?Not learned 230. A liferaft with a capacity of 8 people used in ocean service is required by regulations to carry which items?Not learned 231. Line throwing apparatus aboard ship must contain which items?Not learned 232. You must shore up the collision bulkhead due to solid flooding forward. The bulkhead approximates an inverted triangle. Where should the center of pressure of the shores on the bulkhead be located?Not learned 233. What is the name given to the lines that are passed around the falls to hold the boat and prevent it from swinging violently?Not learned 234. What name is given to the perforated, elevated bottom of the chain locker, which prevents the chains from touching the main locker bottom and allows seepage water to flow to the drains?Not learned 235. How often are each EPIRB and SART for lifeboats required to be tested on the vessel?Not learned 236. What can an oxygen indicator be used to determine?Not learned 237. You are picking up a conscious person that has fallen overboard in one of the vessels motor boats. Recovery is easier in a light breeze if you approach from which direction?Not learned 238. You are picking up an unconscious person that has fallen overboard in a fresh breeze. For safety reasons how should a small craft approach?Not learned 239. To reduce the number of strakes at the bow, two strakes are tapered and joined at their ends by a single plate. What is the name of this plate?Not learned 240. When rendering assistance to personnel in the water a SAR helicopter utilizes a rescue sling for most extractions. In which case would the use of a litter be preferred?Not learned 241. During a SAR helicopter evolution the rescue sling is the most widely used method of extraction. Which of the following describes the alternate Double Lift Method used to pick up incapacitated persons?Not learned 242. Which term is given to the brickwork surrounding the firebox of a boiler?Not learned 243. A thirty-pound plate would be which thickness?Not learned 244. The three conditions which cause engine shutdown are overspeed, low lube oil pressure, and which other condition?Not learned 245. A thrust bearing is designed to accomplish which action?Not learned 246. Which is TRUE if passengers are on board when an abandon ship drill is carried out?Not learned 247. For a vessel inclined by the wind, multiplying the buoyant force by the horizontal distance between the lines of action of the buoyant and gravity forces gives which information?Not learned 248. A vessel can be termed as either tender or stiff in relation to its rolling period. Which of the following would cause a vessel to be tender?Not learned 249. In weighing CO2 cylinders, they must be recharged if weight loss exceeds which amount?Not learned 250. What is a wobbling tail shaft an indication of?Not learned 251. Where is the molded depth measured from on a vessel?Not learned 252. Motor-propelled lifeboats are required to have sufficient fuel to operate continuously at 6 knots for how many hours?Not learned 253. If the OCMI has NOT granted an extension, how often are free-fall lifeboats required to be lowered into the water and launched with the assigned crew?Not learned 254. What is one effect of running a diesel engine at too cool a temperature?Not learned 255. Overspeed of the diesel engine driving an electric generator could cause which situation to occur?Not learned 256. If a passenger vessel navigating the Great Lakes is required to carry 8 life buoys, what is the allowable minimum number of these buoys that must have self-igniting lights attached?Not learned 257. The percentage of the total surface area or volume of a flooded compartment that can be occupied by water caused by damage defines which term?Not learned 258. What power source actuates a solenoid valve?Not learned 259. In the presence of external forces, the center of buoyancy of an inclined vessel is vertically aligned with which item?Not learned 260. You are proceeding to a distress site and expect large numbers of people in the water. Which statement is TRUE?Not learned 261. Progressive flooding is controlled by securing watertight boundaries and which other action?Not learned 262. What is the purpose of the hydrostatic release on an inflatable liferaft?Not learned 263. What is the purpose of the intake/exhaust valves in a diesel engine?Not learned 264. What is the purpose of sheer in the construction of the vessel?Not learned 265. What is the purpose of a striker plate?Not learned 266. For the purpose of training and drills, if reasonable and practicable, how frequently should rescue boats be launched with their assigned crew?Not learned 267. What does a pyrometer measure on a diesel engine?Not learned 268. After each reading of an oxygen indicator, the instrument should be purged with __________.Not learned 269. Which is the most serious effect of air trapped in a non-treated diesel engine jacket water cooling system?Not learned 270. What shall be conducted during a fire and boat drill?Not learned 271. A ship's forward draft is 22'-04" and it’s after draft is 24'-00". The draft amidships is 23'-04". This indicates a concentration of weight is located at which of the following areas?Not learned 272. Small hull leaks can be temporarily repaired by __________.Not learned 273. Which statement about bilge keels is CORRECT?Not learned 274. Which statement concerning solid floors is TRUE?Not learned 275. Which statement is FALSE concerning precautions during small craft fueling operations?Not learned 276. What statement about immersion suits is TRUE?Not learned 277. The straight stream capability of an all-purpose nozzle is used in fighting a class A fire to accomplish which task?Not learned 278. A tank with internal dimensions of 40 feet X 20 feet X 12 feet is pressed with fuel oil weighing 54 pounds per cubic foot. What is the weight, in short tons, of the liquid?Not learned 279. You are tending the lifeline of a person who has entered a compartment wearing a breathing apparatus. How many tugs of the lifeline mean "Are you all right"?Not learned 280. The terms "ceiling" and "margin plate" are associated with which areas of the vessel?Not learned 281. Which term is given to the wooden planking that protects the tank top from cargo loading?Not learned 282. What term indicates the midships portion of a vessel that has a constant cross section?Not learned 283. What term indicates the outward curvature of the hull above the waterline?Not learned 284. The term "strake" is used in reference to which item(s)?Not learned 285. "Thermal protective aids" are required for what percentage of the persons a survival craft is equipped to carry?Not learned 286. Tonnage openings must be closed by means of __________.Not learned 287. Topside icing that blocks freeing ports and scuppers _________.Not learned 288. The total weight of cargo, fuel, water, stores, passengers and crew, and their effects, that a ship can carry, is known as which term?Not learned 289. Which is TRUE concerning the painter of an inflatable liferaft?Not learned 290. Which is TRUE concerning the production of mechanical foam by a portable in-line foam proportioner?Not learned 291. Which is TRUE of the term negative slip on a vessel?Not learned 292. Which type of portable fire extinguisher is NOT designed for use on flammable liquid fires?Not learned 293. What is used as an indicator of initial stability?Not learned 294. What can be used to measure the percentage of oxygen inside a chain locker?Not learned 295. What should be used to steer an open lifeboat if the rudder becomes lost or damaged?Not learned 296. Before using a fixed CO2 system to fight an engine room fire, you must __________.Not learned 297. When using the lifeboat compass, you must be careful to __________.Not learned 298. Your vessel is conducting helicopter evacuation operations for an injured crew member. Which of the following statements is true concerning the hoisting line?Not learned 299. Your vessel is discharging containers from the main deck with the ship's cranes. Which of the following must be taken into account when calculating the center of gravity as the containers are discharged?Not learned 300. Your vessel has grounded on a bar. What should you do?Not learned 301. When a vessel has positive stability, which term is used to describe the distance between the line of force through B and the line of force through G?Not learned 302. A vessel's "quarter" is that section which is __________.Not learned 303. In a water-tube marine type boiler, after the steam leaves the generating tubes, in what part of the boiler is temperature of the steam increased?Not learned 304. A well in the uppermost deck of a shelter deck vessel which has only a temporary means of closing for the purpose of gaining an exemption from tonnage measurement is called a(n) __________.Not learned 305. How would the exhaust of a properly operating diesel engine appear?Not learned 306. A motor lifeboat shall carry sufficient fuel to operate continuously for a period of which duration?Not learned 307. A wooden plug fitted tightly in the vent of a damaged tank may prevent which situation?Not learned 308. Carbon dioxide cylinders which protect machinery spaces, paint lockers and tanks may be located within those spaces when the amount of carbon dioxide does not exceed which amount?Not learned 309. Fire alarm system thermostats are actuated by which means?Not learned 310. Great Lakes vessels, using liferafts, must have sufficient liferaft capacity on each side of the vessel to accommodate how many persons onboard?Not learned 311. If the magnetic heading is greater than the compass heading, what direction is the deviation?Not learned 312. In the illustration D041DG below , what does symbol 5 represent?Not learned 313. In the illustration D041DG below, what does symbol 3 represent?Not learned 314. The Master of a fishing vessel must ensure that each crew member participates in at least one fire drill during which time frame?Not learned 315. What are the quadrantal spheres used for?Not learned 316. What are the required number and type of hand portable fire extinguishers for a galley having an area of 3,500 square feet?Not learned 317. What is a sheave?Not learned 318. What is the difference between magnetic heading and compass heading called?Not learned 319. What is the stress on the hauling part when lifting a 4,200 lbs. weight using a threefold purchase rove to advantage? (Allow 10 percent of the weight per sheave for friction.)Not learned 320. When discharging a portable CO2 fire extinguisher, why must you grasp the hose handle and NOT the discharge horn?Not learned 321. When lowering lifeboats in heavy seas, a good practice is to rig frapping lines which way?Not learned 322. Which defines the standing part of a tackle?Not learned 323. Which is required to be marked on the vessel's life preservers?Not learned 324. Which is TRUE concerning a certified lifeboat operator assigned to command a lifeboat?Not learned 325. Which is TRUE for the connection facilities utilized for the international shore connection aboard the vessel?Not learned 326. Which it TRUE concerning a snatch block?Not learned 327. Which statement is TRUE concerning CO2 cylinders which protect the small space in which they are stored?Not learned 328. Your vessel has 3 lifeboats on each side. What is the designation number for the middle boat on the starboard side?Not learned 329. Safety shackles are fitted with which items?Not learned 330. Which defines the process of cargoes segregation?Not learned 331. The greatest horizontal stress between the heads of the booms in the yard and stay rig occurs when the load is in such a position that the __________.Not learned 332. A vessel that has which of the following will ensure that it will keep its draft at or below the load line mark?Not learned 333. What is the minimum number of fire pumps required on a cargo vessel of 2,000 GT?Not learned