Q456 - Tankerman Assistant Dangerous Liquids, 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. What is the standard net barrel for petroleum products?Not learned 4. On tankers using manually operated tank valves, what does the deck hand wheel indicator register?Not learned 5. On tankers with manually operated tank valves, which of the following is the type of valve most commonly used?Not learned 6. Which of the following procedures would ensure proper seating of the valve when closing?Not learned 7. What is the purpose of the relief valve of a cargo pump?Not learned 8. What type of valve is usually on the discharge side of a cargo pump on a tank vessel?Not learned 9. The cargo pump relief valve is usually piped to which of the following components?Not learned 10. The term "segregated ballast" is defined in the U.S. regulations as ballast water introduced into which of the following?Not learned 11. The flame screens installed on tank vents that may contain combustible gases, are designed to prevent explosions by which of the following?Not learned 12. In special cases, the Commandant of the Coast Guard may permit cargo piping to pass through machinery spaces, what are the type(s) of cargo permitted to be carried through such piping?Not learned 13. What is a cofferdam?Not learned 14. Before a tank is to be crude oil washed, what position must the oxygen content in the tank must be measured at?Not learned 15. When tank cleaning with a portable machine, how is the weight of the machine is suspended?Not learned 16. 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 17. If you observe any situation which presents a safety or pollution hazard during fuel transfer operations, what action should you take FIRST?Not learned 18. 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 19. U.S. regulations require which of the following upon completion of oil transfer operations?Not learned 20. 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 21. U.S. regulations state that no person may transfer oil to or from a vessel unless which of the following conditions is met?Not learned 22. 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 23. Each pressure gage used in an oil transfer operation must be accurate to within what percent?Not learned 24. During oil transfer operations, who is responsible for ensuring that the posted transfer procedures are followed?Not learned 25. What is meant by "thieving" a petroleum cargo?Not learned 26. Who must supervise functions aboard a tanker or tank barge such as connecting, disconnecting, and topping off?Not learned 27. Which of the following does not require cargo transfer operations on a tank vessel to be stopped?Not learned 28. Which topic is NOT required to be discussed at the pre-transfer conference?Not learned 29. When loading bulk liquid cargo, what is the FIRST action you should take if a cargo valve jammed open?Not learned 30. 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 31. Which factor must be considered when determining the order of loading of dissimilar products through the same piping system aboard a tanker?Not learned 32. What is NOT a precaution to be taken when topping off?Not learned 33. When stripping a tank, what is caused by excessive air in the suction line?Not learned 34. What should be the first consideration when discharging an oil cargo?Not learned 35. 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 36. The person in charge on the vessel and the person in charge at the facility must hold a meeting before starting the transfer of oil. Who must decide to start the transfer?Not learned 37. Who completes the Declaration of Inspection before loading a tank vessel?Not learned 38. How should pinching of the cargo hose between the vessel and the dock be prevented?Not learned 39. According to U.S. regulations, which of the following conditions would disqualify a nonmetallic hose as being suitable for use in transferring oil?Not learned 40. Which statement is TRUE concerning insulating flanges?Not learned 41. On a tanker vessel, what is the required combined capacity of the inert gas generating system as compared to the total capacity of all the cargo pumps which can be operated simultaneously?Not learned 42. What is the required gas supply capacity of an inert gas system?Not learned 43. How does an inert gas system on a tanker function to prevent explosions in cargo tanks?Not learned 44. Which of the following conditions will result in an automatic shut down of the flue gas inert gas system?Not learned 45. Which alarm is NOT found on an inert gas system?Not learned 46. In an inert gas system, high pressure alarms are set in the main vapor collection line to cause an audible and visual alarm if the pressure reaches a certain level. What is the percentage of the lowest relief valve setting at which the alarm must sound?Not learned 47. What is the maximum allowable oxygen content within the ships cargo tanks, inert gas piping and the vapor recovery system?Not learned 48. Which of the following will prevent a flammable atmosphere from occurring in a cargo tank on a tank vessel?Not learned 49. While loading bulk liquid cargo, a tank valve jams open, what is the first action you should take?Not learned 50. 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 51. The condition of asphyxia arises from which of the following?Not learned 52. What is the minimum required protective clothing that must be worn while sampling hazardous cargo on a tankship?Not learned 53. Which defines the flash point of a liquid?Not learned 54. Which of the flash points would indicate a grade D combustible liquid?Not learned 55. Which of the following is an example of an example of a grade D product?Not learned 56. Which of the following would be classified as grade "C" petroleum product?Not learned 57. What is the lowest temperature at which a liquid will give off sufficient vapors to form a flammable mixture with air?Not learned 58. What do the designations A, B, C, D, and E grades of cargo define?Not learned 59. For the purpose of regulating tank vessels, which defines the term flammable liquids?Not learned 60. The most likely location for a liquid cargo fire to occur on a tanker would be __________.Not learned 61. Which of the following is the chief source of spontaneous combustion aboard tankers?Not learned 62. When providing first aid to a victim of gas poisoning, what is the MOST important symptom to check for?Not learned 63. Which statement is TRUE concerning combustible gas indicators?Not learned 64. What would likely happen if you were exposed to a 100% methane atmosphere for more than 15 minutes?Not learned 65. Span gas is used for what process?Not learned 66. If a repair team is to enter a confined space for repair work, what minimum level of oxygen should be present?Not learned 67. According to the Coast Guard Pollution Prevention Regulations (33 CFR), what is the minimum number of bolts required in a temporarily connected standard ANSI coupling?Not learned 68. What causes the most frequent incidents of pollution during tanker operations?Not learned 69. While loading bulk oil, you notice oil on the water near the barge. Which of the following actions should you carry out FIRST?Not learned 70. 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 71. What do the emergency shutdown requirements of U.S. regulations apply to?Not learned 72. According to U.S. regulations, which of the following describes the declaration of inspection?Not learned 73. Which of the following describes heavy fuel oils when they have been spilled?Not learned 74. What does the MARPOL 73/78 convention deal with?Not learned 75. Which of the following describes intrinsically safe equipment?Not learned 76. On tankers ullages are measured from what point?Not learned 77. Which refers to the depth of a petroleum product in a tank?Not learned 78. What is litmus paste is used to determine?Not learned 79. 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 80. When is it acceptable to use power-driven or manually-operated spark producing devices in the pumproom, where grades A, B, C, and D liquid cargoes are involved?Not learned 81. According to U.S. regulations, which conditions would not disqualify a nonmetallic hose as being suitable for use in transferring oil?Not learned 82. According to U.S. regulations, which of the following does not qualify as a discharge of oil?Not learned 83. 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 84. Cargo hose carried on tank vessels shall be able to withstand a pressure of at least how many psi?Not learned 85. If a cargo of kerosene were considered "too lean" to explode, then it must be which of the following?Not learned 86. Combustion can occur inside a piping system such as a vapor collection header in a marine emission control system. Which of the following will not aid in this combustion process?Not learned 87. How can you determine which grades of cargo a tank vessel is permitted to carry?Not learned 88. When discharging a tanker, how can list be controlled?Not learned 89. Who enforces the U.S. pollution regulations that apply to ships?Not learned 90. A flame screen __________.Not learned 91. What are flame screens used for?Not learned 92. What are the flammable limits for motor gasoline?Not learned 93. Which of the following choices does not depict the tank inerting process on a tank vessel?Not learned 94. Under which of the following conditions will the blowers of an inert gas generation system aboard a tanker remain operational?Not learned 95. Which of the following conditions will cause a combustible gas indicator to become inoperative or give erroneous readings?Not learned 96. Which of the following represents an emergency procedure used to stop the oil flow aboard tank vessels, of 250 tons or greater, as required by U.S. regulations?Not learned 97. 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 98. What grade are most crude oils are classified as?Not learned 99. How is an inert gas system designed to reduce the possibility of tank explosions?Not learned 100. What is the inert gas system on a tanker used for?Not learned 101. When the inert gas system is temporarily unable to maintain a positive pressure, or an oxygen content less than 8%, how should cargo operations be adjusted?Not learned 102. The intakes for an air compressor on a tank vessel carrying grade A cargo may be located in which of the following areas?Not learned 103. "Line Displacement" is a procedure that is followed at an oil terminal facility, when there is a change of which of the following?Not learned 104. Which statement is TRUE when loading a tanker?Not learned 105. 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 106. Which of the following terms defines the minimum temperature required to ignite gas or vapor without a spark or flame being present?Not learned 107. When you notice oil on the water near your vessel while taking on fuel, what should your first action be?Not learned 108. In order to reduce the accumulation of static electricity while loading petroleum products, you should __________.Not learned 109. What is the proper first aid for LPG in the eye?Not learned 110. In reference to accidental oil pollution, the most critical time during bunkering is when __________.Not learned 111. What is Reid Vapor Pressure?Not learned 112. The sign used to caution persons approaching the gangway of a tank barge during cargo transfer should state which of the following?Not learned 113. What is the standard unit of liquid volume used in the petroleum industry?Not learned 114. You start a centrifugal cargo pump to discharge cargo. The pump works fine for a while and then loses suction. What could have caused this?Not learned 115. Which statement about the use of portable electric lights in petroleum product tanks is TRUE?Not learned 116. 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 117. What term is not considered a "discharge" as it applies to the U.S. pollution regulations?Not learned 118. 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 119. Why is a warning sign displayed at the gangway or access point of a barge during cargo transfer?Not learned 120. It would be prudent to perform which of the following actions prior to the commencement of bunkering?Not learned 121. U.S. regulations require a meeting before starting any oil transfer operation. Who must be in attendance at this meeting?Not learned 122. Oil product samples should be taken at the commencement and completion of loading operations. As the person in charge, where should the the final samples be taken?Not learned 123. On modern tankers with separate pumprooms, which of the following is used to minimize cargo pump shaft leakage?Not learned 124. What is the distance between the surface of the liquid and the tank top in a cargo tank called?Not learned