Q419 - Deck Safety, USCG prep certification 2026

Progress: 24% (23/94)

Learning progress ?

1. When is firefighting foam most effective?Not learned 2. What is the function of wearing rings found on some centrifugal pumps?Not learned 3. How does good housekeeping prevent fires on a vessel?Not learned 4. Which of the following conditions represents the appropriate time for setting off distress flares and rockets?Not learned 5. Which signaling device(s) is/are required on inflatable liferafts?Not learned 6. All of the following are part of the fire triangle EXCEPT __________.Not learned 7. When compared to low-expansion foam, a high-expansion foam will __________.Not learned 8. Firefighting foam is only effective when the foam __________.Not learned 9. How can the spread of fire be prevented?Not learned 10. Convection spreads a fire by __________.Not learned 11. Radiation can cause a fire to spread by __________.Not learned 12. When approaching a fire from windward, you should shield firefighters from the fire by using an applicator and __________.Not learned 13. Which is the BEST method of applying foam to a fire?Not learned 14. A fire of escaping liquefied flammable gas is best extinguished by which action?Not learned 15. No outlet on a fire hydrant may point above the horizontal in order to __________.Not learned 16. Your tankship has 40 gallons of 6% foam concentrate aboard. Approximately how much foam solution can be produced from this supply?Not learned 17. 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 18. The volatility of a flammable liquid is indicated by its __________.Not learned 19. Which defines the flash point of a liquid?Not learned 20. Which statement is TRUE concerning the "flash point" of a substance?Not learned 21. Which statement describes the relationship between flash point and auto-ignition temperature?Not learned 22. You have carbon tetrachloride as part of the cargo. If a fire breaks out in the general area, what is the major danger from the carbon tetrachloride?Not learned 23. The explosive range of petroleum vapors when mixed with air is __________.Not learned 24. Paints and solvents used aboard a vessel should be __________.Not learned 25. To prevent oily rags from spontaneously igniting they should be __________.Not learned 26. The primary danger in helicopter fires on a MODU is __________.Not learned 27. Combustible gas indicators measure the presence of combustible gas as a percentage of the __________.Not learned 28. A person who observes an individual fall overboard should do which of the following?Not learned 29. All personnel on board a vessel should be familiar with the rescue boat's __________.Not learned 30. In each inflatable liferaft, what equipment is provided to make quick, emergency, temporary repairs to large holes in the raft?Not learned 31. If you must jump from a vessel, what does the correct posture include?Not learned 32. If help has not arrived in 10-12 hours after you abandon a remotely-located MODU in a survival craft, which of the following would be the best course of action?Not learned 33. When collecting condensation for drinking water, __________.Not learned 34. 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?Not learned 35. An immersion suit should be equipped with a/an __________.Not learned 36. Which statement concerning immersion suits is TRUE?Not learned 37. Which is TRUE concerning immersion suits and their use?Not learned 38. In accordance with 46 CFR, life jackets should be stowed in __________.Not learned 39. Which statement is TRUE concerning life preservers?Not learned 40. Which precaution should be taken when testing a line throwing gun?Not learned 41. A liferaft which has inflated bottom-up on the water __________.Not learned 42. The jackknife stored on an inflatable liferaft will always be located __________.Not learned 43. An inflatable liferaft can be launched by __________.Not learned 44. An inflatable liferaft is hand-launched by __________.Not learned 45. After abandoning ship, why should you deploy the sea anchor from a liferaft?Not learned 46. Using a sea anchor when in a life raft will __________.Not learned 47. If more than one liferaft is manned after the vessel has sunk, which action will aid in your rescue?Not learned 48. How is the inside light in an inflatable liferaft activated?Not learned 49. 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?Not learned 50. Which statement is TRUE concerning an inflatable liferaft?Not learned 51. Which of the devices listed will prevent an inflated liferaft from being pulled under by a vessel which sinks in water over 100 feet deep?Not learned 52. Who should inspect and test an inflatable liferaft?Not learned 53. An emergency sea anchor may be constructed by using which item(s)?Not learned 54. Which term is used for the horizontal distance between the vertical lines of action of gravity and the buoyant forces?Not learned 55. At all angles of inclination, which is the true measure of a vessel's stability?Not learned 56. Which term defines the difference between the forward and aft drafts?Not learned 57. When the height of the metacenter has the same value as the height of the center of gravity, the metacentric height is equal to __________.Not learned 58. When should the control of flooding of your vessel be addressed?Not learned 59. If a MODU takes a sudden severe list or trim from an unknown cause, you should FIRST __________.Not learned 60. Which term describes the strengthening of damaged bulkheads by using wood or steel?Not learned 61. In plugging submerged holes; why are rags, wedges, and other materials used in conjunction with plugs?Not learned 62. What is the objective of shoring a damaged bulkhead?Not learned 63. What must be accurately determined to assess the potential for progressive flooding after a vessel has been damaged?Not learned 64. The overspeeding of the diesel engine driving an electric generator could cause __________.Not learned 65. What is the difference between net tonnage and gross tonnage?Not learned 66. What does the line labeled "MS" indicate on the Great Lakes load line model shown in illustration D031DG below?Not learned 67. You are approaching a ship that is broken down and are preparing to take her in tow. BEFORE positioning your vessel to pass the towline, which action should you take?Not learned 68. One of your crew members falls overboard from the starboard side. You should IMMEDIATELY take which action?Not learned 69. When patching holes in the hull, how can pillows, bedding, and other soft materials be used?Not learned 70. The two courses of action if the underwater hull is severely damaged are to plug the openings or to take which action?Not learned 71. Where on a vessel are the load line markings shown in illustration D031DG inscribed?Not learned 72. Your vessel is on a voyage from Ogdensburg, NY, to Chicago, IL, via the Great Lakes. The date is October 3 of the current year. If your vessel is subject to the load line requirements, using illustration D031DG below, to which of her marks should she be loaded?Not learned 73. Which is the abandon ship signal?Not learned 74. 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 75. You have abandoned ship in tropical waters. Which procedure(s) should be used during a prolonged period in a raft?Not learned 76. Which action will affect the trim of a vessel?Not learned 77. What is an advantage of a steam turbine over a diesel for the main propulsion?Not learned 78. An aircraft has indicated that he wants you to change course and follow him. You cannot comply because of an emergency on board. Which signal should you make?Not learned 79. Ambient air, which you normally breathe, contains what percent of oxygen?Not learned 80. At an angle of loll, the capsizing moment is __________.Not learned 81. Angular motion about the longitudinal axis of a vessel is known by which term?Not learned 82. The angular movement of a vessel about a horizontal line drawn from its bow to its stern is known by which term?Not learned 83. What is the best indication of the loading of a diesel engine?Not learned 84. What does blowing tubes accomplish?Not learned 85. You board an inflatable liferaft that has been hand launched from a sinking vessel. What should you do FIRST after everyone is onboard the liferaft?Not learned 86. If the cause of severe list or trim of a vessel is due to off-center ballast, counter-flooding into empty tanks will __________.Not learned 87. Which causes spontaneous combustion?Not learned 88. Channel 13 is primarily used for ship-to-ship communication. Channel 13 is also authorized for which purpose?Not learned 89. What is the color of the signal flare sent up by a submarine indicating that a torpedo has been fired in a training exercise?Not learned 90. You have completed stability calculations for your vessel prior to getting underway. Your vessel's GM is small but positive. Which of the following is true?Not learned 91. A concentration of weight has been shifted inboard to the center line of the vessel. Generally speaking, what effect will this have on the vessel?Not learned 92. The danger of a charged hose left unattended on deck with the nozzle open is __________.Not learned 93. A deck-stowed 40-foot container is giving off smoke, and one end is discolored from heat. The cargo is valuable and easily damaged by water. You want to extinguish the fire without further damage if possible. What action should you take?Not learned 94. Which defines the function of a spark arrestor?Not learned 95. How are all diesel engines classified?Not learned 96. Why are diesel engines considered safer than gasoline engines?Not learned 97. The difference in water spray pattern between the high-velocity tip and low-velocity applicator used with the all-purpose nozzle is due to __________.Not learned 98. Dry chemical extinguishers extinguish class B fires to the greatest extent by which method?Not learned 99. Due to the shape of the sea anchor, which is the best way to haul it back aboard?Not learned 100. What is the effect of heated intake air on a diesel engine that is at normal operating temperature?Not learned 101. When electrical equipment is involved in a fire, where should the stream of dry chemicals be directed?Not learned 102. If an engine shuts down due to high jacket water temperature, what action should be taken?Not learned 103. Before entering the chain locker, you should __________.Not learned 104. 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 105. How is the external flotation bladder of an immersion suit inflated?Not learned 106. When should the external inflation bladder on an immersion suit be inflated?Not learned 107. What factor is essential to the proper operation of a radiator cooled engine?Not learned 108. You are fighting a fire in a cargo hold on your vessel. Which action is most important concerning the stability of the vessel?Not learned 109. When fighting a fire in an enclosed space, why should the hose team crouch as low as possible?Not learned 110. Fighting a fire in the galley poses which additional threat?Not learned 111. There is a fire in the crew's quarters of your vessel. Which action should you take FIRST?Not learned 112. A fire in the galley ALWAYS poses which additional threat?Not learned 113. A fire starts in a switchboard due to a short circuit. This is which class of fire?Not learned 114. A fire starts on your vessel while refueling. Which action should you take FIRST?Not learned 115. A fire starting by spontaneous combustion can be expected in which condition?Not learned 116. A fire in a transformer terminal would be classified as class __________.Not learned 117. Fixed CO2 systems would not be used on crew's quarters or at which other location?Not learned 118. When flammable liquids are handled in a compartment on a vessel, the ventilation for that area should be __________.Not learned 119. How does foam extinguish an oil fire?Not learned 120. Which of the following aspects of a flooded space will most adversely affect transverse stability if it is subject to free communication?Not learned 121. Which of the following penalties can be imposed for a violation of the "Vessel Bridge-to-Bridge Radiotelephone Act"?Not learned 122. Four-cycle diesel engines obtain combustion air through turbo chargers, blowers, or which other means?Not learned 123. The free surface effects of a partially full liquid tank decrease with the increase of which item?Not learned 124. What is NOT a function of the steam drum of a marine water-tube boiler?Not learned 125. A galley grease fire on the stove may be extinguished using _______.Not learned 126. In general, how often are sanitary inspections of passenger and crew quarters made aboard passenger vessels in river service?Not learned 127. Why can the vessel's GM not be used as an indicator of stability at all angles of inclination?Not learned 128. When the GMDSS Radio Operator on watch hears "SECURITE" spoken three times he can expect to receive a message concerning __________.Not learned 129. What does the gross tonnage of a vessel indicate?Not learned 130. You have hand launched an inflatable liferaft. What should be one of your FIRST actions after all persons have boarded the liferaft?Not learned 131. What happens when the handle of an all-purpose nozzle is pushed into the forward position?Not learned 132. When the handle of an all-purpose nozzle is pulled all the way back, it will __________.Not learned 133. Heave is motion along which axis?Not learned 134. If heavy smoke is coming from the paint locker, what should be the FIRST firefighting response?Not learned 135. Why is the height of a VHF radio antenna more important than the power output wattage of the radio?Not learned 136. A high-velocity fog stream can be used in firefighting situations to drive heat and smoke ahead of the firefighters in a passageway. This technique should only be used when which condition exists?Not learned 137. Horizontal transverse motion of a vessel is known by which term?Not learned 138. In illustration D001SA below, what represents the center of gravity?Not learned 139. In illustration D014SA below, which item number correctly identifies the external lifelines?Not learned 140. In illustration D014SA below, which item is the righting strap?Not learned 141. In illustration D031DG below, what does the single line located directly above the diamond indicate?Not learned 142. An immersion suit must be equipped with which item(s)?Not learned 143. An important step in fighting any electrical fire is to take which action?Not learned 144. Which will improve stability?Not learned 145. If an inflatable liferaft inflates upside down, you can right it by taking which action?Not learned 146. Inflatable liferafts are provided with a __________.Not learned 147. Inflatable liferafts are provided with which item?Not learned 148. Which instrument is suitable for determining the presence of explosive concentrations of fuel oil vapors in tanks?Not learned 149. You are involved in an emergency landing of a helicopter on the water. You should inflate your life jacket __________.Not learned 150. Who issues a ship's radiotelephone station license?Not learned 151. You have a large, broken-down vessel in tow with a wire rope and anchor cable towline. Both vessels have made provision for slipping the tow in an emergency; however, unless there are special circumstances which is TRUE?Not learned 152. To launch a liferaft by hand, you should take which actions?Not learned 153. How should the letter "D" be pronounced when spoken on the radiotelephone?Not learned 154. Lifesaving regulations in Subchapter W require that a fire drill include which of the following?Not learned 155. What does the lifesaving signal indicated by a horizontal motion of a white light or white flare mean?Not learned 156. How do the lights on the outside of the canopy on an inflatable liferaft operate?Not learned 157. Line throwing equipment should NOT be operated __________.Not learned 158. When should the lubricating oil be changed on a heavy-duty diesel engine?Not learned 159. When the mainline valve of a self-contained breathing apparatus is open, the bypass valve should be __________.Not learned 160. Which is the major disadvantage of a low-speed diesel as compared to a steam main-propulsion system?Not learned 161. All marine low-speed diesels are of what design?Not learned 162. What may the firing of a red star signal mean?Not learned 163. Metacentric height is an indication of a vessel's stability __________.Not learned 164. If the meter needle of the oxygen indicator cannot be set to zero, what should be done?Not learned 165. What is the minimum number of people required to safely handle a 1-1/2-inch fire hose?Not learned 166. You have abandoned ship in rough weather. After picking up other survivors in your liferaft, what should you do next?Not learned 167. 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 168. What is the function of the bypass valve on the self-contained breathing apparatus?Not learned 169. How are fusible link fire dampers operated?Not learned 170. Which item(s) is/are a 2,000 GT tankship required to carry?Not learned 171. When launching an inflatable liferaft, which is TRUE concerning the operating cord?Not learned 172. What is the lifesaving signal used to indicate, "Landing here is highly dangerous"?Not learned 173. 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 174. Normally, potable water systems are connected directly to the __________.Not learned 175. Normally, your vessel is on a voyage of three months duration. How many sanitary inspections are required to be conducted during the voyage?Not learned 176. Which officer is responsible for the sanitary condition of the engineering department?Not learned 177. How often are CO2 cylinders forming part of a fixed fire extinguishing system required to be pressure tested?Not learned 178. The outlet at a fire hydrant may be positioned anywhere from horizontal to pointing in which direction(s)?Not learned 179. 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 180. If a powdered aluminum fire is being fought, which is the most effective extinguishing agent to use?Not learned 181. What is the preferred agent used in fighting a helicopter crash fire?Not learned 182. Which is the primary element to successfully rescuing a man overboard?Not learned 183. Which is the primary type of welding employed in shipyards in the construction of cargo vessels?Not learned 184. Where a propeller shaft passes through the hull, which device prevents water from entering the hull?Not learned 185. On the all-purpose nozzle, what is the position of the nozzle valve when the handle is all the way forward?Not learned 186. When is it recommended that seawater be used for drinking?Not learned 187. 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 188. 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 189. You have sent a visual signal to an aircraft. The aircraft then flies over your position on a straight course and level altitude. What should you do?Not learned 190. The single turn method of returning to a man overboard should be used ONLY if which condition exists?Not learned 191. A situation has occurred where it becomes necessary for you to be towed. What action should be taken to prevent your vessel from yawing?Not learned 192. A situation has occurred in which your vessel must be towed. When the towing vessel passes the towing line to you, where should you secure the line?Not learned 193. A squeeze-grip type carbon dioxide portable fire extinguisher has been partially discharged. Which action should be taken?Not learned 194. Which statement about immersion suits is TRUE?Not learned 195. What does subtracting GM from KM yield?Not learned 196. You have taken another vessel in tow. Which is an indicator that the towing speed is too fast?Not learned 197. On a tankship, who is responsible for the sanitary inspections of the crew's quarters?Not learned 198. Which term defines the minimum concentration of a vapor in air which can form a mixture that ignites and burns?Not learned 199. Which term describes the time required to incline the vessel from port to starboard and back to port again?Not learned 200. Which term is given to the brickwork surrounding the firebox of a boiler?Not learned 201. Which term is used to describe the horizontal port or starboard movement of a vessel?Not learned 202. Which term is used to describe the point that is halfway between the forward and after perpendicular and is a reference point for vessel construction?Not learned 203. The three conditions which cause engine shutdown are overspeed, low lube oil pressure, and which other condition?Not learned 204. A thrust bearing is designed to accomplish which action?Not learned 205. Which is TRUE concerning the most serious effect trapped air has on a diesel engine jacket water cooling system?Not learned 206. The two factors which make underwater hull repair of a MODU difficult are accessibility and the __________.Not learned 207. Which type of weld is used to attach stiffeners to a plate?Not learned 208. Ultrasonic testing is used to determine the thickness of a vessel's shell plating and which other testing?Not learned 209. When using the International Code of Signals to communicate, the end of a radiotelephone transmission is indicated by which signal?Not learned 210. 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 211. 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 212. If you wear extra clothing when entering the water after abandoning ship it will accomplish which of the following?Not learned 213. What is a wobbling tail shaft an indication of?Not learned 214. Where is the molded depth measured from on a vessel?Not learned 215. What monitoring device best indicates the load being carried by a diesel engine?Not learned 216. If you must enter water on which there is an oil fire, which is the best action to take?Not learned 217. When approaching a fire from leeward you should shield firefighters from the fire by using __________.Not learned 218. Automatic fire dampers in ventilation systems are operated by use of which item?Not learned 219. Why is it desirable to have screens on the vents of potable water tanks?Not learned 220. How should the number "9" be pronounced when spoken on the radiotelephone?Not learned 221. Oil fires are best extinguished by __________.Not learned 222. What is one effect of running a diesel engine at too cool a temperature?Not learned 223. One gallon of high expansion foam solution will produce __________.Not learned 224. One method of controlling rats on vessels is by rat-proofing. Rat-proofing is accomplished by __________.Not learned 225. The operating cord on an inflatable liferaft also serves as which item?Not learned 226. The operator of the ship's radiotelephone, if the radiotelephone is carried voluntarily, must hold at least which of the following?Not learned 227. Overspeed of the diesel engine driving an electric generator could cause which situation to occur?Not learned 228. 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 229. When possible, what is the FIRST step in fighting an engine fuel-pump fire which results from a broken fuel line?Not learned 230. What power source actuates a solenoid valve?Not learned 231. You are preparing to take another vessel in tow. Which signal indicates, "Hawser is made fast"?Not learned 232. In the presence of external forces, the center of buoyancy of an inclined vessel is vertically aligned with which item?Not learned 233. You are in the process of righting an inflatable liferaft that has inflated in an upside down position. Which statement is TRUE?Not learned 234. What is the purpose of a striker plate?Not learned 235. For the purpose of training and drills, if reasonable and practicable, how frequently should rescue boats be launched with their assigned crew?Not learned 236. What is the purpose of the tripping line on a sea anchor?Not learned 237. What does a pyrometer measure on a diesel engine?Not learned 238. What quality of a diesel fuel is most significant for efficient combustion?Not learned 239. A quick and rapid motion of a vessel in a seaway is an indication of a(n) __________.Not learned 240. Which is the quickest method to stop a small diesel engine whose throttle or governor has become stuck open?Not learned 241. When would a racetrack turn be better than a Williamson turn in recovering a man overboard?Not learned 242. After each reading of an oxygen indicator, the instrument should be purged with __________.Not learned 243. You are at sea and have received a General Emergency message announcing the outbreak of war in Europe. You are directed to comply with the instructions in NGA (NIMA) PUB 117, Chapter Eight. Which statement is TRUE?Not learned 244. The self-contained breathing device should not be used in which situation?Not learned 245. What shall be conducted during a fire and boat drill?Not learned 246. You are on a ship that has broken down and are preparing to be taken in tow. You will use your anchor cable as part of the towline. Which statement is TRUE?Not learned 247. 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 248. What is the signal to guide vessels in distress, indicating, "This is the best place to land"?Not learned 249. If the situation arose where it became necessary to tow a disabled vessel, which statement is TRUE concerning the towing line?Not learned 250. For small angles of inclination, if the KG were equal to the KM, which is TRUE concerning the vessel?Not learned 251. The spread of fire is NOT prevented by __________.Not learned 252. What statement about immersion suits is TRUE?Not learned 253. Which statement about immersion suits is TRUE?Not learned 254. Which statement about immersion suits is TRUE?Not learned 255. Which statement is TRUE concerning carbon dioxide?Not learned 256. Which statement is TRUE concerning distress signals in a survival craft?Not learned 257. Which statement is TRUE concerning a fire in a machinery space?Not learned 258. Which statement is TRUE concerning life jackets which are severely damaged?Not learned 259. Which statement is TRUE concerning radiotelephones on board towing vessels?Not learned 260. With what other stations may portable survival craft transceivers communicate?Not learned 261. You suspect that a crewmember has fallen overboard during the night and immediately execute a Williamson turn. What is the primary advantage of this maneuver under these circumstances?Not learned 262. 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 263. 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 264. Which term describes the horizontal fore or aft motion of a vessel?Not learned 265. What term indicates the length measured along the summer load line from the intersection of that load line with the foreside of the stem and the intersection of that load line with the aft side of the rudder post?Not learned 266. What term indicates the outward curvature of the hull above the waterline?Not learned 267. What are the three most common basic types of diesel engine starters?Not learned 268. What time of day would an SSB radio have the longest transmitting range?Not learned 269. Tonnage openings must be closed by means of __________.Not learned 270. 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 271. What is the traditional signal for fire aboard ship?Not learned 272. During a training exercise a submarine indicating that a torpedo has been fired will send up smoke from a float. What color will the smoke be?Not learned 273. Which is TRUE concerning the production of mechanical foam by a portable in-line foam proportioner?Not learned 274. Which is TRUE concerning the stowage of life jackets?Not learned 275. Which is TRUE of paints and solvents on a vessel?Not learned 276. Which types of portable fire extinguishers are designed for use on electrical fires?Not learned 277. Which type of portable fire extinguisher is NOT designed for use on flammable liquid fires?Not learned 278. Which type of weld testing can be used to detect internal flaws?Not learned 279. While underway in thick fog you are on watch and hear the cry "man overboard". Which type of maneuver should you make?Not learned 280. What is used as an indicator of initial stability?Not learned 281. Before using a fixed CO2 system to fight an engine room fire, you must __________.Not learned 282. When using a high-velocity fog stream in a passageway, the possibility of a blow back must be guarded against. Blow back is most likely to occur when __________.Not learned 283. You are using an oxygen indicator. How long should you wait after the sample is drawn into the instrument before reading the meter?Not learned 284. When using the oxygen indicator, which reaction from the needle should you expect as a sample is drawn into the instrument?Not learned 285. You are using a racetrack turn to recover a man overboard. The vessel is first steadied when how many degrees away from the original heading?Not learned 286. When using the rainwater collection tubes on a life raft, the FIRST collection should be __________.Not learned 287. 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 288. 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 289. Your vessel has grounded on a bar. What should you do?Not learned 290. Your vessel has an injured crew member onboard that will require evacuation. Which of the following publications should you review for the procedures in conducting rescue/medivac helicopter operations?Not learned 291. A vessel with a large GM will __________.Not learned 292. A vessel is "listed" when it is __________.Not learned 293. A vessel's "quarter" is that section which is __________.Not learned 294. Which vessel is NOT required to have a radiotelephone?Not learned 295. The vessel shown in illustration D025DG has broken down and you are going to take her in tow. The wind is on her starboard beam. Both vessels are making the same amount of leeway. Where should you position your vessel when you start running lines?Not learned 296. A vessel with a small GM will __________.Not learned 297. VHF Channel 6 is used exclusively for what kind of communications?Not learned 298. You are on watch and see a man fall overboard. Which man overboard turn should NOT be used in this situation?Not learned 299. Water pockets on the underside of an inflatable liferaft are for _________.Not learned 300. When water pressure of 100 psi is used in conjunction with an inline proportioner for the production of the mechanical foam, how long will a 5-gallon can of liquid foam last?Not learned 301. 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 302. When water is used to fight a fire on board a ship, the effect of the weight of the water must be taken into account. How much sea water will increase the weight displacement by one ton?Not learned 303. Which weld fault can only be detected by a method that examines the internal structure of a weld?Not learned 304. What welding pattern is NOT used to permanently attach a stiffener to a plate?Not learned 305. 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 306. What would be used to call all stations in your vicinity by radiotelephone?Not learned 307. What would a yellow signal floating in the air from a small parachute, about 300 feet above the water indicate about a submarine?Not learned 308. All inflatable liferafts have which item?Not learned 309. When discharging a portable CO2 fire extinguisher, why must you grasp the hose handle and NOT the discharge horn?Not learned 310. A fire in a pile of linen is considered which class of fire?Not learned 311. An aluminum powder fire is in which fire classification category?Not learned 312. What is the normal percentage of oxygen in air?Not learned 313. What is the Ring life buoy requirement on your small passenger vessel that has a length of 28 feet?Not learned 314. Which is the principal danger from ice collecting on a vessel?Not learned 315. If the cause of a sudden severe list or trim is negative initial stability, counter-flooding into empty tanks located high on the vessel, may cause which of the following?Not learned 316. Inflatable liferafts are provided with which item(s)?Not learned 317. How should the letter "T" be pronounced when spoken on the radiotelephone?Not learned 318. How should the number "1" be pronounced when spoken on the radiotelephone?Not learned 319. When used to fight fire, which is TRUE concerning carbon dioxide as an extinguishing agent?Not learned 320. Where must the life jackets be stowed?Not learned 321. When using the rainwater collection tubes on a liferaft, what should be done with the first collection?Not learned 322. The vessel shown in illustration D025DG has broken down and you are going to take her in tow. The wind is on her starboard beam. She is making more leeway than you. Where should you position your vessel when you start running lines?Not learned 323. The vessel shown in illustration D025DG has broken down and you are going to take her in tow. The wind is coming from her starboard beam. You are making more leeway than she. Where should you position your vessel when you start running lines?Not learned 324. Your cargo vessel is transiting pirate waters with a temporary security team onboard. The ship has been attacked and starts sinking. The decision has been made to abandon ship. During the muster, the security force leader is determined to be missing. What initial action should be taken?Not learned