Q457 - Tankerman Assistant Liquefied Gas, USCG prep certification 2026

Progress: 24% (23/94)

Learning progress ?

1. Which of the following is the pipe used to connect two separate piping systems on a tank vessel?Not learned 2. Which of the following is equivalent to a "barrel", which is a unit of liquid measure?Not learned 3. Which of the following procedures would ensure proper seating of the valve when closing?Not learned 4. The cargo pump relief valve is usually piped to which of the following components?Not learned 5. The term "segregated ballast" is defined in the U.S. regulations as ballast water introduced into which of the following?Not learned 6. What is a cofferdam?Not learned 7. U.S. regulations require an emergency means of stopping the flow of oil or LNG during transfer operations. The emergency means may be which of the following?Not learned 8. If you observe any situation which presents a safety or pollution hazard during fuel transfer operations, what action should you take FIRST?Not learned 9. For all loading operations, the terminal must supply the vessel with a means in which the vessel's designated person in charge may stop the flow of oil to the vessel, insuring immediate shutdown in the event of a hose rupture, tank overflow, etc. Which of the following choices will accomplish this task as required by 33 CFR?Not learned 10. According to U.S. regulations, no person may connect or disconnect an oil transfer hose or engage in any other critical oil transfer operation on a tank vessel unless which of the following is met?Not learned 11. According to the Pollution Prevention Regulations (33 CFR), no person may transfer oil to or from a vessel unless each person in charge has signed the __________.Not learned 12. Who must supervise functions aboard a tanker or tank barge such as connecting, disconnecting, and topping off?Not learned 13. Which topic is NOT required to be discussed at the pre-transfer conference?Not learned 14. When loading bulk liquid cargo, what is the FIRST action you should take if a cargo valve jammed open?Not learned 15. Your tank vessel is loaded down to her marks, and you find that she has too much trim by the stern. Which of the following actions would reduce the excessive trim?Not learned 16. What is NOT a precaution to be taken when topping off?Not learned 17. Who is responsible for the final inspection, ensuring a tank barge is provided with the required equipment and has fittings in good and serviceable condition prior to loading cargo?Not learned 18. Who completes the Declaration of Inspection before loading a tank vessel?Not learned 19. How should pinching of the cargo hose between the vessel and the dock be prevented?Not learned 20. Which statement is TRUE concerning insulating flanges?Not learned 21. Which alarm is NOT found on an inert gas system?Not learned 22. Which of the following will prevent a flammable atmosphere from occurring in a cargo tank on a tank vessel?Not learned 23. LNG is carried at approximately what temperature?Not learned 24. In what condition is LNG transported?Not learned 25. What is the preferable way to extinguish a liquefied gas fire?Not learned 26. With reference to liquefied gas operations, what is the term "rollover" used to describe?Not learned 27. While loading bulk liquid cargo, a tank valve jams open, what is the first action you should take?Not learned 28. On a barge carrying bulk liquid hazardous cargo, remote controls for quick-closing shut off valves are required in how many location(s)?Not learned 29. A fire of escaping liquefied flammable gas is best extinguished by which action?Not learned 30. The condition of asphyxia arises from which of the following?Not learned 31. Which defines the flash point of a liquid?Not learned 32. Which is NOT a safety precaution to be observed during the loading of Liquefied Gas?Not learned 33. What are the primary concern(s) for safely transporting and handling liquefied gas?Not learned 34. What is the lowest temperature at which a liquid will give off sufficient vapors to form a flammable mixture with air?Not learned 35. What do the designations A, B, C, D, and E grades of cargo define?Not learned 36. For the purpose of regulating tank vessels, which defines the term flammable liquids?Not learned 37. Which of the following describes one of the principal dangers inherent in liquefied petroleum gas?Not learned 38. The boiling point of Methane is -161°C. How is the substance carried?Not learned 39. Which of the following describes a liquefied gas?Not learned 40. What is the most common liquefied gas cargo?Not learned 41. When providing first aid to a victim of gas poisoning, what is the MOST important symptom to check for?Not learned 42. Which statement is TRUE concerning combustible gas indicators?Not learned 43. What would likely happen if you were exposed to a 100% methane atmosphere for more than 15 minutes?Not learned 44. Span gas is used for what process?Not learned 45. If a repair team is to enter a confined space for repair work, what minimum level of oxygen should be present?Not learned 46. What causes the most frequent incidents of pollution during tanker operations?Not learned 47. According to U.S. regulations, tank vessels with greater than 250 barrels capacity are required to have a means of emergency shutdown. This device does which of the following?Not learned 48. What do the emergency shutdown requirements of U.S. regulations apply to?Not learned 49. According to U.S. regulations, which of the following describes the declaration of inspection?Not learned 50. Which of the following describes heavy fuel oils when they have been spilled?Not learned 51. What does the MARPOL 73/78 convention deal with?Not learned 52. Cryogenic burns can result in frostbite. What is the proper immediate treatment?Not learned 53. Which of the following describes intrinsically safe equipment?Not learned 54. Which refers to the depth of a petroleum product in a tank?Not learned 55. 46 CFR directs the location of fuel oil sounding tubes and access openings for fuel oil tanks on cargo vessels. Where can the tubes be located?Not learned 56. According to 46 CFR there are specific alarms that are required to be tested prior to cargo transfer. Which of the following items does not require testing?Not learned 57. According to U.S. regulations, which of the following does not qualify as a discharge of oil?Not learned 58. You have berthed in a port area with other tank vessels. What signal is displayed by a vessel to indicate it is transferring flammable or combustible liquid cargo?Not learned 59. Cargo hose carried on tank vessels shall be able to withstand a pressure of at least how many psi?Not learned 60. Compared to air, the weight of liquefied petroleum gas vapors are which of the following?Not learned 61. How can you determine which grades of cargo a tank vessel is permitted to carry?Not learned 62. When discharging a tanker, how can list be controlled?Not learned 63. Who enforces the U.S. pollution regulations that apply to ships?Not learned 64. What are flame screens used for?Not learned 65. Which of the following conditions will cause a combustible gas indicator to become inoperative or give erroneous readings?Not learned 66. Which of the following is the primary function of the screens that are fitted to the fuel oil tank vents?Not learned 67. Which of the following is a safety consideration when dealing with Liquefied Gas?Not learned 68. Which of the following terms best describes the amount of product in a tank measured from the tank top to the level of liquid?Not learned 69. How is an inert gas system designed to reduce the possibility of tank explosions?Not learned 70. What is the inert gas system on a tanker used for?Not learned 71. Which statement is TRUE when loading a tanker?Not learned 72. What is the lowest temperature at which the vapors of a flammable liquid will ignite and cause self-sustained combustion in the presence of a spark or flame?Not learned 73. Which of the following terms defines the minimum temperature required to ignite gas or vapor without a spark or flame being present?Not learned 74. When you notice oil on the water near your vessel while taking on fuel, what should your first action be?Not learned 75. What is the primary hazard of liquefied petroleum gas and liquefied natural gas?Not learned 76. What is the proper first aid for LPG in the eye?Not learned 77. In reference to accidental oil pollution, the most critical time during bunkering is when __________.Not learned 78. The sign used to caution persons approaching the gangway of a tank barge during cargo transfer should state which of the following?Not learned 79. Span gas is used aboard liquefied natural gas carriers to __________.Not learned 80. Your tank vessel is fully loaded to the marks, and you find that she is down slightly by the head. Which of the following choices would be the best action to take to trim the vessel slightly by the stern?Not learned 81. Which of the terms best describes the process of the production of vapor above the surface of a boiling cargo due to evaporation on an LNG tanker?Not learned 82. What term is not considered a "discharge" as it applies to the U.S. pollution regulations?Not learned 83. When two ballast pumps used for deballasting a single tank start cavitating, you should __________.Not learned 84. Your vessel is securely moored to the berth preparing to discharge a cargo of LPG. Which of the following items would not comply with a "Safety Checklist" and should be corrected?Not learned 85. Why is a warning sign displayed at the gangway or access point of a barge during cargo transfer?Not learned 86. It would be prudent to perform which of the following actions prior to the commencement of bunkering?Not learned 87. What is generally the first action in extinguishing a liquefied gas fire caused by escaping gas?Not learned 88. What is the distance between the surface of the liquid and the tank top in a cargo tank called?Not learned