2f051 Edit Code 6 Volume 3

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1. (403) What company was the first to design and install the Type III hydrant system?

Explanation

Phillips Petroleum Company was the first company to design and install the Type III hydrant system.

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About This Quiz
2f051 Edit Code 6 Volume 3 - Quiz

This quiz, titled '2F051 Edit Code 6 Volume 3', assesses knowledge on fuel storage and dispensing systems used in military service stations. It covers specifications like tank capacities,... see morepump ratings, and safety systems, crucial for professionals in fuel system engineering and management. see less

2. (406) Who should be contacted if the DD Form 250, Material Inspection and Receiving Report, or contractor delivery ticket is not available upon arrival of a fuel tank truck and prior to fuel receipt?

Explanation

If the DD Form 250 or contractor delivery ticket is not available upon arrival of a fuel tank truck and prior to fuel receipt, the appropriate person to contact would be the Defense Logistics Agency (DLA) quality assurance representative (QAR). The QAR is responsible for ensuring that the fuel received meets the required specifications and quality standards. They would be able to provide guidance and instructions on how to proceed in the absence of the required documentation.

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3. (402) When receiving fuel at the military service station, what information is not required on the Department of Defense (DD) Form 250, Material Inspection and Receiving Report?

Explanation

The Department of Defense (DD) Form 250, Material Inspection and Receiving Report is a document used to record the receipt of materials or goods. It includes information such as seal numbers, fuel grade, and quantity. However, the delivery schedule is not required to be included on this form. The delivery schedule refers to the planned dates and times for the delivery of the fuel, which is not necessary to be recorded on the DD Form 250.

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4. (402) Who must be notified for product disposition if excessive contamination is detected in motor gasoline (MOGAS) and diesel fuel receipts?

Explanation

The appropriate quality assurance representative (QAR) must be notified for product disposition if excessive contamination is detected in motor gasoline (MOGAS) and diesel fuel receipts. The QAR is responsible for ensuring the quality and compliance of the received products, so they need to be informed about any issues such as excessive contamination. The other options, including the company who shipped the product, base fuels laboratory personnel, and area laboratory personnel, may also be involved in the process, but the QAR is the primary person who needs to be notified in this situation.

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5. (409) When manually gauging a tank, where should fuel-finding paste be applied on the steel tape?

Explanation

Fuel-finding paste should be applied 3-inches above and below the estimated product depth on the steel tape when manually gauging a tank. This allows for a more accurate measurement of the fuel level in the tank.

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6. (402) How is fuel used at the automotive fuel storage and dispensing system normally received?

Explanation

Fuel at the automotive fuel storage and dispensing system is typically received through tank trucks. Tank trucks are commonly used to transport fuel from refineries or storage facilities to the automotive fuel storage and dispensing system. These trucks have large tanks specifically designed to safely transport and deliver fuel to its destination.

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7. (411) Physical inventories on active storage tanks are normally taken between

Explanation

Physical inventories on active storage tanks are normally taken between 2400 and 0800. This time period is chosen because it is during the late night and early morning when there is typically less activity and fewer disruptions in the storage facility. This allows for a more accurate and efficient inventory count to be conducted without interference from ongoing operations or movement of inventory.

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8. (403) On the Type III hydrant system, the light-emitting diode (LED) in the battery backup system in each microprocessor will indicate a problem at least how many days in advance before the battery becomes weak enough to jeopardize the integrity of the memory?

Explanation

The Type III hydrant system has a battery backup system with a microprocessor that includes a light-emitting diode (LED) indicator. This LED indicator will start indicating a problem at least 3 days in advance before the battery becomes weak enough to potentially compromise the integrity of the memory.

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9. (404) What major command (MAJCOM) developed the Type IV hydrant system?

Explanation

The correct answer is United States Air Forces in Europe (USAFE). This is because the question is asking which major command developed the Type IV hydrant system, and USAFE is the correct answer because they are responsible for air operations in Europe and have developed this specific hydrant system.

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10. (401) What is the gallon per minute rating for military automotive service station submersible turbine pumps?

Explanation

The gallon per minute rating for military automotive service station submersible turbine pumps is 10.

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11. (401) What type of dispensing unit has two meters, but only one pump contained within its housing?

Explanation

A dual dispensing, single product unit has two meters but only one pump. This means that the unit is capable of dispensing the same product from two separate outlets simultaneously, but it only requires one pump to do so. This type of unit is commonly used in situations where there is a need for multiple dispensing points for the same product, such as in a gas station with two fueling stations.

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12. (406) When performing flushing operations on a Type III, IV, or V system, in what position should the pump selector switch be placed?

Explanation

During flushing operations on a Type III, IV, or V system, the pump selector switch should be placed in the "Flush" position. This is because the "Flush" position activates the pump to circulate water or cleaning solution throughout the system, effectively removing any debris or contaminants. Placing the switch in the "Off" position would deactivate the pump, while the "Idle" position would keep the pump running but not actively flushing the system. The "Auto" position is not mentioned in the question, so it is not relevant to the correct answer.

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13. (406) Fuel/water mixtures from product recovery systems should be disposed of in accordance with

Explanation

Fuel/water mixtures from product recovery systems should be disposed of in accordance with local, state, and federal environmental laws and regulations. This means that the disposal of these mixtures should comply with the guidelines and regulations set by the local government, the state government, and the federal government regarding environmental protection and waste management. It is important to follow these guidelines to ensure that the disposal of fuel/water mixtures does not harm the environment and is done in a responsible and legal manner.

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14. (404) On the Type IV hydrant system, how is fuel prevented from spilling should a hose separate from the nozzle during a hot refueling operation?

Explanation

A dry break coupler located inside the hose will close automatically to prevent fuel from spilling if the hose separates from the nozzle during a hot refueling operation.

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15. (402) What is the maximum time interval permitted by the vehicle identification link (VIL) in which to make a pump selection?

Explanation

The maximum time interval permitted by the vehicle identification link (VIL) to make a pump selection is 999 seconds. This means that the VIL system allows the user to take up to 999 seconds, or approximately 16 minutes and 39 seconds, to make a pump selection.

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16. (412) Heat can be transferred in cryotainers by

Explanation

Heat can be transferred in cryotainers through conduction, convection, and radiation. Conduction is the transfer of heat through direct contact between objects or substances. Convection is the transfer of heat through the movement of fluids or gases. Radiation is the transfer of heat through electromagnetic waves. Since all three methods of heat transfer are mentioned, it can be concluded that heat can be transferred in cryotainers through conduction, convection, and radiation.

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17. (412) The purpose of a portable vacuum gauge is to check the

Explanation

A portable vacuum gauge is used to measure the level of vacuum in the annular space. The annular space refers to the space between two concentric objects, such as between the inner and outer tank of a system. Checking the vacuum in this space is important as it helps ensure the integrity and efficiency of the system. By measuring the vacuum, any leaks or issues in the annular space can be identified and addressed promptly.

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18. (413) What does a heavy freeze spot on the outer hose of a liquid oxygen/liquid nitrogen (LOX/LIN) transfer hose indicate?

Explanation

A heavy freeze spot on the outer hose of a LOX/LIN transfer hose indicates that the inner hose is damaged. When the inner hose is damaged, the liquid oxygen or liquid nitrogen can leak out and come into contact with the outer hose, causing it to freeze. This freeze spot is a clear indication that there is a problem with the inner hose and it needs to be inspected and repaired.

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19. (414) Which procedure is only accomplished during a liquid oxygen (LOX) receipt?

Explanation

During a liquid oxygen (LOX) receipt, the procedure that is only accomplished is the test for odor. This is important because liquid oxygen is odorless, but if there is a leak or contamination, it may produce a distinct smell. Therefore, testing for odor helps to ensure the quality and safety of the liquid oxygen being received. The other options, monitoring for leaks, checking the DD Form 250, and ensuring sufficient ullage, may be important procedures during a LOX receipt but are not exclusively accomplished during this process.

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20. (404) How many tanks are used with the Type IV hydrant system and how many gallons will each hold?

Explanation

The correct answer is 4; 50,000. This means that the Type IV hydrant system uses 4 tanks, and each tank has a capacity of 50,000 gallons.

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21. 403) On the Type III hydrant system, what would the sequence of the other pumps be if pump # 2 is selected as the lead pump?

Explanation

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22. (403) What is the purpose of the Type III hydrant system lockout key?

Explanation

The Type III hydrant system lockout key is used to transfer control from one microprocessor to the other. This key allows for a smooth transition of control between the two microprocessors, ensuring that the system continues to operate efficiently and effectively. It helps to maintain the stability and reliability of the hydrant system by seamlessly transferring control without any interruptions or disruptions.

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23. (401) In inches, what is the diameter of the manway with access ladder used for military service station above and below ground tanks?

Explanation

The correct answer is 36. This suggests that the diameter of the manway with access ladder used for military service stations above and below ground tanks is 36 inches.

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24. (401) What system is designed to cut all electric current running to all dispensers when activated?

Explanation

The emergency power down system is designed to cut all electric current running to all dispensers when activated. This system is specifically designed for emergency situations where it is necessary to quickly and safely shut off power to all dispensers to prevent any potential hazards or accidents. It serves as a safety measure to protect both the dispensers and the individuals using them.

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25. (401) What is the standard gallon capacity for an above ground fuel storage tank used at a military service station?

Explanation

The standard gallon capacity for an above ground fuel storage tank used at a military service station is 12000. This capacity allows for a sufficient amount of fuel to be stored, ensuring that the military service station has an adequate supply to meet the needs of vehicles and equipment. It also allows for efficient refueling operations, reducing the frequency of refills and potential disruptions in service.

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26. (406) During receipt operations, how far in front and to the rear of a tank truck should danger signs be placed when offloading in an unsecure area?

Explanation

During receipt operations, danger signs should be placed 50 feet in front and 50 feet to the rear of a tank truck when offloading in an unsecure area. This ensures that the signs are visible from a sufficient distance to warn approaching vehicles or pedestrians of the potential hazards.

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27. (403) What is the rated capacity in gallons per minute (gpm) and revolutions per minute (rpm) of a deep well turbine fuel transfer pump used for the Type III product recovery system?

Explanation

The correct answer is 50 gpm; 1,800 rpm. This means that the rated capacity of the deep well turbine fuel transfer pump used for the Type III product recovery system is 50 gallons per minute and it operates at a speed of 1,800 revolutions per minute.

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28. (413) What are cryotainer safety relief valves tested with?

Explanation

Cryotainer safety relief valves are tested with compressed air. This is because compressed air is a commonly used medium for testing safety relief valves in various industries. It allows for the simulation of pressure conditions without the need for hazardous or expensive gases such as helium, methane, or nitrogen. By testing with compressed air, the functionality and reliability of the safety relief valves can be assessed to ensure they will function properly in real-life scenarios.

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29. (406) During Type IV hydrant system operations, who is responsible for positioning the aircraft on the "hot pad?"

Explanation

The hot refueling supervisor is responsible for positioning the aircraft on the "hot pad" during Type IV hydrant system operations. This role is specifically designated to ensure safe and efficient positioning of the aircraft during the refueling process.

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30. (403) What handheld device is used to shut off fuel flow if the operator becomes incapacitated?

Explanation

A deadman control valve is a handheld device that is used to shut off fuel flow if the operator becomes incapacitated. This valve is designed to be operated by the operator's hand and requires continuous pressure to keep the fuel flow open. If the operator releases the valve due to incapacitation or any other reason, the valve automatically shuts off the fuel flow, preventing any potential accidents or hazards. Therefore, the deadman control valve is the correct answer for this question.

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31. (403) Which condition will cause the vibrating horn to sound on the Type III hydrant system?

Explanation

If the engine generator on the Type III hydrant system experiences a fault, it will cause the vibrating horn to sound.

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32. (404) What is the rated capacity in gallons per minute (gpm) of the pumps on the Type IV hydrant system?

Explanation

The rated capacity in gallons per minute (gpm) of the pumps on the Type IV hydrant system is 600 gpm.

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33. (408) Who is responsible for completing the "Maintenance Status" column on page 2 of the Air Force Technical Order (AFTO) Form 39?

Explanation

The correct answer is water and fuel systems maintenance personnel. These individuals are responsible for completing the "Maintenance Status" column on page 2 of the Air Force Technical Order (AFTO) Form 39. This makes sense as water and fuel systems maintenance personnel would have the necessary knowledge and expertise to accurately record the maintenance status of these specific systems.

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34. (404) What component on the Type IV hydrant system shuts down the fueling pumps when water and sediment are detected in the fuel?

Explanation

The contamination monitor is the component on the Type IV hydrant system that shuts down the fueling pumps when water and sediment are detected in the fuel. This device is designed to detect any contaminants in the fuel, such as water and sediment, and automatically triggers a shutdown of the fueling pumps to prevent further contamination of the fuel. It plays a crucial role in ensuring the quality and purity of the fuel being dispensed.

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35. (403) Which alarm indicator on the Type III system, when actuated, shuts down all fueling pumps that are operating at the time?

Explanation

When the low level alarm indicator on the Type III system is actuated, it indicates that the fuel level has dropped to a dangerously low level. In order to prevent any further fueling, the system automatically shuts down all fueling pumps that are currently operating. This is a safety measure to prevent any potential accidents or fuel leaks due to insufficient fuel levels.

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36. (412) What two gauges are permanently installed on cryotainers?

Explanation

The correct answer is pressure and quantity. Cryotainers are containers used for storing cryogenic gases or liquids at extremely low temperatures. The pressure gauge is important for monitoring the pressure inside the cryotainer to ensure it remains within safe limits. The quantity gauge is used to measure the amount of cryogenic substance remaining in the container, allowing for proper inventory management and planning for refills or replacements.

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37. (406) Fuels management and civil engineering (CE)/water and fuel systems maintenance (WSFM) personnel will develop specific operating instructions for hydrant system flushing based on the

Explanation

Fuels management and civil engineering (CE)/water and fuel systems maintenance personnel will develop specific operating instructions for hydrant system flushing based on the type of system. This means that the specific instructions will vary depending on the type of system being used. The rated capacity of the system and the number of control valves in the system may also be important factors to consider, but the primary factor for developing the operating instructions is the type of system.

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38. (412) Which type of heat transfer is the only one the operator can control in a cryotainer?

Explanation

The correct answer is Convection. Convection is the type of heat transfer that involves the movement of heat through a fluid, such as air or water. In a cryotainer, the operator can control the temperature inside by manipulating the flow of fluid, such as using fans or pumps to circulate the cold air or liquid. This allows for better control of the temperature and prevents hot spots or uneven cooling. Radiation, conduction, and vaporization are not directly controlled by the operator in a cryotainer.

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39. (406) Which Type III hydrant system valve will open to relieve thermal expansion?

Explanation

The pressure control valve in a Type III hydrant system will open to relieve thermal expansion. When the temperature of the fuel increases, it causes the fuel to expand, creating pressure within the system. The pressure control valve is designed to automatically open when the pressure exceeds a certain limit, allowing the excess pressure to be released and preventing any damage or failure of the system. This valve helps to maintain the proper pressure levels in the hydrant system and ensures its safe operation.

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40. (405) Since the Type V hydrant system is not required to be manned when it is being operated, as a minimum, inspections are performed every

Explanation

The Type V hydrant system does not need to be manned while it is being operated. Therefore, inspections need to be conducted at regular intervals to ensure its proper functioning. The correct answer of 3 hours suggests that inspections should be performed every 3 hours to monitor the system and address any potential issues that may arise during its operation.

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41. (403) What is the minimum number of figures displayed on the non-resettable totalizer on the Type III receipt line?

Explanation

The correct answer is 7. This means that the minimum number of figures displayed on the non-resettable totalizer on the Type III receipt line is 7.

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42. (407) When performing a daily inspection of fixed hydrant system filter separators, you must inspect the vessel for ¾ to 1 inch markings that include all of the following information except

Explanation

When performing a daily inspection of fixed hydrant system filter separators, you must inspect the vessel for ¾ to 1 inch markings that include all of the following information except the date of last filter element change in the MMM/YY format. The markings should include the type of filter elements installed, the maximum allowable differential pressure, and the date of next filter element change in the MMM/YY format. These markings are important for monitoring the condition of the filter elements and ensuring that they are changed regularly to maintain the system's efficiency.

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43. (406) When flushing Type III, IV, and V hydrant systems, a visual sample should be drawn on the return loop at the

Explanation

When flushing Type III, IV, and V hydrant systems, it is recommended to draw a visual sample on the midpoint of flushing operations. This means that the sample should be taken when the flushing process is halfway through. Drawing a visual sample at this point allows for a more accurate assessment of the water quality and ensures that any contaminants or sediments that may have been dislodged during the flushing process are properly captured and analyzed.

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44. (415) As a minimum, liquid oxygen (LOX) storage tanks should be purged every

Explanation

Liquid oxygen (LOX) storage tanks should be purged every 365 days. Purging is necessary to remove any contaminants or impurities that may have accumulated in the tank over time. Regular purging helps to maintain the purity and quality of the stored liquid oxygen, ensuring its safe and efficient use. Purging every 365 days strikes a balance between maintaining the integrity of the storage system and minimizing the frequency of maintenance tasks.

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45. (416) The Air Force Technical Order (AFTO) Form 245 is

Explanation

The correct answer is "an continuation of the AFTO Form 244." This means that the AFTO Form 245 is a document that follows and builds upon the information provided in the AFTO Form 244. It suggests that the AFTO Form 245 is a subsequent form or an extension of the previous form, allowing for the continuation of the record-keeping process.

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46. (409) When manually gauging a tank for temperature, at a minimum, how long must the thermometer be left in the fuel to ensure an accurate temperature reading?

Explanation

To ensure an accurate temperature reading when manually gauging a tank for temperature, the thermometer must be left in the fuel for at least 5 minutes. This is because it takes time for the thermometer to reach thermal equilibrium with the fuel and accurately measure its temperature. Leaving the thermometer in the fuel for less than 5 minutes may result in an inaccurate reading.

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47. (403) Commonly used pumps on the Type III system are balanced statically and dynamically for all flow rates from no flow to

Explanation

The correct answer is 120 percent of the designed rate. This means that the commonly used pumps on the Type III system are balanced statically and dynamically for flow rates up to 120 percent of the designed rate. This ensures that the pumps can handle higher flow rates without causing any imbalance or malfunctioning.

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48. (403) What Type III system component signals the microprocessor to turn on the lead pump when the system pressure drops below 60 pounds per square inch (psi)?  

Explanation

A pressure indicating transmitter is a type III system component that signals the microprocessor to turn on the lead pump when the system pressure drops below 60 psi. This component is designed to measure and indicate the pressure in the system, and when it detects a pressure drop below the specified threshold, it sends a signal to the microprocessor to activate the lead pump. This ensures that the system maintains a minimum pressure level for proper operation.

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49. (407) Who must inform the squadron commander, Air Force Petroleum Office, and other affected agencies of any deficiency in a fixed hydrant system that compromises mission accomplishment?

Explanation

The Fuels management team must inform the squadron commander, Air Force Petroleum Office, and other affected agencies of any deficiency in a fixed hydrant system that compromises mission accomplishment. This team is responsible for managing and overseeing the fuel operations, including the fixed hydrant system, and ensuring that it is functioning properly to support the mission. They have the knowledge and expertise to identify and address any deficiencies in the system, and it is their responsibility to inform the relevant authorities to ensure mission success.

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50. (408) When should the fuels manager, fuels flight commander, and/or terminal superintendent review the Air Force Technical Order (AFTO) Form 39 and sign page 2 in the Management Form Review sections?

Explanation

The fuels manager, fuels flight commander, and/or terminal superintendent should review the Air Force Technical Order (AFTO) Form 39 and sign page 2 in the Management Form Review sections on a monthly basis. This ensures that they stay updated on any changes or updates in the technical order and can address any issues or concerns in a timely manner. Regular monthly reviews help maintain the accuracy and effectiveness of the AFTO Form 39 and ensure compliance with regulations and procedures.

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51. (411) How often should active storage tanks be inventoried?

Explanation

Active storage tanks should be inventoried daily to ensure accurate monitoring of the inventory levels and to identify any potential issues or leaks promptly. Daily inventory allows for timely adjustments and maintenance, reducing the risk of overfilling or running out of storage capacity. It also helps in detecting any discrepancies between actual and recorded inventory, enabling quick corrective actions. Regular daily inventory is crucial for maintaining the efficiency and safety of active storage tanks.

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52. (412) What type of insulation is used in the annular space of a liquid oxygen/liquid nitrogen (LOX/LIN) transfer hose?

Explanation

Glass wool is the correct answer because it is commonly used as insulation material in the annular space of a liquid oxygen/liquid nitrogen transfer hose. Glass wool is a type of thermal insulation made from spun glass fibers. It is lightweight, has good thermal insulation properties, and is resistant to high temperatures. These characteristics make it suitable for insulating the transfer hose and preventing heat transfer between the inner and outer surfaces of the hose, ensuring the safe and efficient transfer of the cryogenic liquids.

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53. (406) The Defense Logistics Agency (DLA) Energy Form 702 is prepared to cover a 24-hour duty day that runs from

Explanation

The correct answer is 2400 to 2400. This means that the DLA Energy Form 702 is prepared to cover a 24-hour duty day that starts at midnight and ends at midnight the following day. This is the standard military time format where 2400 represents midnight.

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54. (406) On a fillstand equipped with the Scully Intellitrol® control system, how often are electrical pulses sent to the high-level sensor during a filling operation?

Explanation

During a filling operation on a fillstand equipped with the Scully Intellitrol control system, electrical pulses are sent to the high-level sensor 30 times per second.

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55. (406) During a transfer operation, when is water removal from the tanks not required?

Explanation

When equipped with an Enraf®-Vito probe in the sump and no water presence is shown, water removal from the tanks is not required. This is because the Enraf®-Vito probe is able to detect the presence of water in the sump and if no water is detected, there is no need for water removal.

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56. (406) In what section of the Defense Energy Support Center (DESC) Form 1233 are returns to bulk recorded?

Explanation

Bulk returns are recorded in the Fueling Unit Summary section of the Defense Energy Support Center (DESC) Form 1233. This section specifically captures the returns made to bulk fuel units. The other options, such as Issues, Reconciliation, and Net Issues From Bulk, do not pertain to the recording of returns to bulk.

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57. (403) What size mesh screen is used in the Type III hydrant system receiving strainer?

Explanation

The correct answer is 60. In a Type III hydrant system, the receiving strainer is equipped with a mesh screen to filter out debris and prevent clogging. The size of the mesh screen used in this system is 60. This means that the screen has 60 openings per linear inch, allowing water to flow through while trapping larger particles. Using a finer mesh screen helps to ensure that the hydrant system remains free from blockages and operates effectively.

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58. (416) Once the last aircraft has been serviced, the Air Force Technical Order (AFTO) Form 134 may be destroyed after two

Explanation

The correct answer is "weeks". According to the given information, the Air Force Technical Order (AFTO) Form 134 may be destroyed after two weeks once the last aircraft has been serviced.

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59. (416) What symbol on the Air Force Technical Order (AFTO) Form 244 is used to represent an unsatisfactory condition exists, but it is not sufficiently dangerous enough to warrant not using the equipment?

Explanation

The red diagonal symbol on the Air Force Technical Order (AFTO) Form 244 is used to represent an unsatisfactory condition that exists but is not dangerous enough to warrant not using the equipment. This symbol indicates that there is a minor issue or defect with the equipment that does not pose a significant risk to safety or functionality. It serves as a visual reminder to the user that there is a problem that needs to be addressed, but it does not require immediate action or grounding of the equipment.

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60. (405) What is the constant pressure range in pounds per square inch (psi) for the Type V hydrant system?

Explanation

The constant pressure range for the Type V hydrant system is 45 to 150 psi. This means that the pressure within the system remains within this range regardless of any fluctuations or changes in demand. This range allows for a consistent and reliable water supply for firefighting purposes.

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61. (403) On the Type III hydrant system, which filter separator control valve function will prevent the elements from bursting and allowing contaminated fuel downstream?

Explanation

The maximum differential pressure shutoff function on the Type III hydrant system will prevent the elements from bursting and allowing contaminated fuel downstream. This function is designed to automatically shut off the flow of fuel when the pressure difference between the upstream and downstream sides of the filter separator reaches a certain limit. By doing so, it prevents excessive pressure build-up that could cause the elements to burst and ensures that only clean fuel is allowed to flow downstream.

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62. (406) What form serves as a record for all issues and returns to bulk?

Explanation

The correct answer is Defense Energy Support Center (DESC) Form 1233. This form serves as a record for all issues and returns to bulk. It is specifically used by the Defense Energy Support Center (DESC) for this purpose.

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63. (410) At a minimum, how many measuring points does the measurement probe on an automated tank gauging system have?

Explanation

An automated tank gauging system typically requires at least two measuring points on the measurement probe. This is because the system needs to measure both the level of the liquid in the tank and the temperature of the liquid. These two measurements are crucial for accurate tank gauging and inventory management.

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64. (407) Weekly inspections on fixed hydrant systems must be accomplished every seven days, and must not exceed

Explanation

Weekly inspections on fixed hydrant systems must be accomplished every seven days, meaning that they need to be done once a week. The inspections must not exceed 12 days, which means that they cannot be done more than 12 days apart. Therefore, the correct answer is 12 days.

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65. Which one do you like?

Explanation

The answer "10 Secs" suggests that the person prefers a longer duration of something. Without further context, it is unclear what exactly is being referred to, but it could be a preference for a longer time to complete a task, a longer duration for an activity or event, or a longer period of time for a specific outcome to occur.

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66. (403) At what liquid percentage level will the Type III hydrant system product recovery tank overfill valve close?

Explanation

The Type III hydrant system product recovery tank overfill valve will close at a liquid percentage level of 80.

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67. (412) How many gallons will a TMU–20/E cryotainer hold?

Explanation

A TMU-20/E cryotainer is designed to hold a large volume of liquid, specifically cryogenic materials. The fact that the answer is 5000 suggests that this particular cryotainer has a capacity of 5000 gallons. Therefore, this cryotainer can hold up to 5000 gallons of liquid.

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68. (406) Under normal conditions and as a minimum, how many hours must fuel in above ground tanks settle prior to transferring?

Explanation

Fuel in above ground tanks must settle for a minimum of 8 hours before transferring. This settling period allows any impurities or sediments in the fuel to settle at the bottom of the tank, ensuring that only clean fuel is transferred. It also helps to prevent any turbulence or agitation during the transfer process, which could lead to the mixing of impurities and affect the quality of the fuel. Therefore, waiting for 8 hours allows for a sufficient settling time to ensure the fuel is ready for transfer.

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69. (415) The air within the air purge unit is heated to

Explanation

The air within the air purge unit needs to be heated to a high temperature in order to effectively remove any moisture or contaminants present. A temperature of 350°F is sufficient to achieve this purpose.

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70. (406) At what pressure in pounds per square inch (psi) is the R–12's defuel pump capable of delivering fuel to the Type III hydrant system?

Explanation

The R-12's defuel pump is capable of delivering fuel to the Type III hydrant system at a pressure of 165 psi.

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71. (415) What aircraft is not authorized to transport cryogenic tanks due to the need of an overboard vent system to vent excessive pressure?

Explanation

The correct answer is C–21. The C–21 aircraft is not authorized to transport cryogenic tanks due to the need of an overboard vent system to vent excessive pressure. This means that the C–21 does not have the necessary equipment or capability to safely transport cryogenic tanks, which require a specific vent system to release pressure.

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72. (406) What is the maximum gallons per minute (gpm) flow rate of the R–12's defuel pump?

Explanation

The maximum gallons per minute (gpm) flow rate of the R-12's defuel pump is 300 gpm.

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73. (412) The two commonly used insulating materials used in the annular space of a cryotainer are

Explanation

The correct answer is crushed glass perlite beads and mylar film. These materials are commonly used as insulating materials in the annular space of a cryotainer. Fiberglass and glass wool are not mentioned as commonly used materials.

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74. (405) How is the deadman control valve operated on the Type V hydrant system?

Explanation

The deadman control valve on the Type V hydrant system is operated by fuel pressure. This means that the valve is controlled and activated by the pressure of the fuel in the system.

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75. (406) On the Type III hydrant system, at what pressure in pounds per square inch (psi) will the control system start the lead pump?

Explanation

The control system will start the lead pump on the Type III hydrant system at a pressure of 60 psi.

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76. (406) The fueling control valve on the Type IV hydrant system is opened to perform hot refueling operations by

Explanation

The fueling control valve on the Type IV hydrant system is opened to perform hot refueling operations by air pressure from the deadman control valve. This means that the valve is opened when air pressure is applied from the deadman control valve. The deadman control valve is a safety device that requires continuous pressure from the operator to keep the valve open. Therefore, when the operator applies air pressure to the deadman control valve, it opens the fueling control valve, allowing fuel to flow for hot refueling operations.

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77. (405) On the Type V hydrant system, what size (in inches) are the stainless steel pantographs installed inside the hardened shelters?

Explanation

The stainless steel pantographs installed inside the hardened shelters on the Type V hydrant system are of size 3 inches.

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78. (413) As a minimum how often should cryotainer pressure gauges be calibrated?

Explanation

Cryotainer pressure gauges should be calibrated at least once a year. Calibrating the gauges annually ensures that they are accurate and reliable in measuring the pressure inside the cryotainer. Regular calibration helps to maintain the safety and efficiency of the cryotainer system by detecting any potential issues or deviations in pressure readings.

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79. (416) What AFTO Form acts as a permanent history of significant maintenance actions on equipment?

Explanation

AFTO Form 95 acts as a permanent history of significant maintenance actions on equipment.

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80. (415) How many cryotainers can be connected in a series when transporting cryotainers on an aircraft using the overboard vent system?

Explanation

The correct answer is 3 because the question asks about the number of cryotainers that can be connected in a series when using the overboard vent system on an aircraft. This means that the cryotainers are connected one after another in a sequential manner. Therefore, the maximum number of cryotainers that can be connected in this way is 3.

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81. (407) Bonding receptacles will be inspected with a pounds per square inch (psi) spring scale for a pull of

Explanation

The correct answer is 8 to 14 psi. This means that when inspecting bonding receptacles, a spring scale should be used to measure the pull force, and the reading should be between 8 and 14 pounds per square inch (psi). This range ensures that the bonding receptacles are securely attached and can withstand a certain amount of force without detaching.

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82. (417) Who is required to conduct a monthly cryogenic storage facility inspection with the cryogenic supervisor?

Explanation

The correct answer is the Fuels management team. The Fuels management team is responsible for conducting a monthly cryogenic storage facility inspection with the cryogenic supervisor. This team is specifically trained and equipped to handle the storage and management of fuels, including cryogenic substances. They have the necessary expertise and knowledge to ensure that the storage facility is properly maintained and meets all safety standards. The squadron commander may have overall responsibility for the facility, but it is the Fuels management team that conducts the inspections.

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83. (406) Which valve(s) on the Type III hydrant system will modulate open, allowing the fuel to pass through when returning to the operating tanks during a defuel operation?

Explanation

During a defuel operation on a Type III hydrant system, the valve that will modulate open, allowing the fuel to pass through when returning to the operating tanks is the backpressure control valve. This valve is designed to regulate the pressure in the system and prevent excessive backpressure, ensuring a smooth and controlled flow of fuel during defueling.

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84. (408) Prior to the first servicing, a system on standby status should be inspected at least

Explanation

A system on standby status should be inspected at least monthly because regular inspections are necessary to ensure that the system is functioning properly and to identify any potential issues or malfunctions. Monthly inspections allow for timely detection of any problems and allow for prompt maintenance or repairs to be carried out, reducing the risk of system failure or damage. Additionally, monthly inspections help to maintain the system's efficiency and prolong its lifespan.

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85. (414) Before issuing liquid oxygen/liquid nitrogen (LOX/LIN) to a receiving cryotainer, open the pressure build-up valve until the pressure gauge, in pounds per square inch (psi), indicates

Explanation

Before issuing liquid oxygen/liquid nitrogen (LOX/LIN) to a receiving cryotainer, it is necessary to open the pressure build-up valve until the pressure gauge indicates a range of 10 to 15 psi. This pressure range ensures that the cryotainer is filled with the appropriate amount of pressure to safely contain the liquid oxygen or liquid nitrogen. Higher pressures could potentially cause damage to the cryotainer, while lower pressures may result in insufficient pressure for proper storage and usage. Therefore, maintaining a pressure of 10 to 15 psi is essential for the safe and effective storage of LOX/LIN.

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86. (407) Strainers equipped with a differential pressure (DP) gauge should be inspected daily and cleaned when the DP reading in pounds per square inch (psi) reaches at least

Explanation

Strainers equipped with a differential pressure (DP) gauge should be inspected daily and cleaned when the DP reading in pounds per square inch (psi) reaches at least 10 PSI. This means that when the pressure difference across the strainer reaches 10 PSI, it is an indication that the strainer is becoming clogged and needs to be cleaned. Regular inspection and cleaning of the strainer helps to maintain its efficiency and prevent any potential damage or blockage in the system.

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87. (415) As a minimum, vacuum checks should be performed on cryotainers every

Explanation

Vacuum checks should be performed on cryotainers every 180 days. This is because cryotainers are containers used for storing cryogenic materials, such as liquid nitrogen or helium, which require a vacuum to maintain their low temperatures. Regular vacuum checks are necessary to ensure that the cryotainers are maintaining the required vacuum levels and are functioning properly. Performing these checks every 180 days allows for timely detection and correction of any issues that may arise, ensuring the safe and efficient storage of cryogenic materials.

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88. (416) What AF Form is used to document liquid oxygen (LOX) and liquid nitrogen (LIN) inventories?

Explanation

The correct answer is 1235. This AF Form is used to document liquid oxygen (LOX) and liquid nitrogen (LIN) inventories.

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89. (407) When inspecting automated tank gauging (ATG) systems, what pressure range in pounds per square inch (psi) should the nitrogen cylinder regulator setting indicate?

Explanation

The correct answer is 20 to 25 psi. This pressure range is the appropriate setting for the nitrogen cylinder regulator when inspecting automated tank gauging (ATG) systems. This pressure range ensures that the ATG system operates effectively and accurately measures the tank levels.

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90. (403) During the Type III hydrant system's shut down process, the pressure control valve reduces the system pressure to

Explanation

During the Type III hydrant system's shut down process, the pressure control valve reduces the system pressure to 75 PSI.

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(403) What company was the first to design and install the Type III...
(406) Who should be contacted if the DD Form 250, Material Inspection...
(402) When receiving fuel at the military service station, what...
(402) Who must be notified for product disposition if excessive...
(409) When manually gauging a tank, where should fuel-finding paste be...
(402) How is fuel used at the automotive fuel storage and dispensing...
(411) Physical inventories on active storage tanks are normally taken...
(403) On the Type III hydrant system, the light-emitting diode (LED)...
(404) What major command (MAJCOM) developed the Type IV hydrant...
(401) What is the gallon per minute rating for military automotive...
(401) What type of dispensing unit has two meters, but only one pump...
(406) When performing flushing operations on a Type III, IV, or V...
(406) Fuel/water mixtures from product recovery systems should be...
(404) On the Type IV hydrant system, how is fuel prevented from...
(402) What is the maximum time interval permitted by the vehicle...
(412) Heat can be transferred in cryotainers by
(412) The purpose of a portable vacuum gauge is to check the
(413) What does a heavy freeze spot on the outer hose of a liquid...
(414) Which procedure is only accomplished during a liquid oxygen...
(404) How many tanks are used with the Type IV hydrant system and how...
403) On the Type III hydrant system, what would the sequence of the...
(403) What is the purpose of the Type III hydrant system lockout key?
(401) In inches, what is the diameter of the manway with access ladder...
(401) What system is designed to cut all electric current running to...
(401) What is the standard gallon capacity for an above ground fuel...
(406) During receipt operations, how far in front and to the rear of a...
(403) What is the rated capacity in gallons per minute (gpm) and...
(413) What are cryotainer safety relief valves tested with?
(406) During Type IV hydrant system operations, who is responsible for...
(403) What handheld device is used to shut off fuel flow if the...
(403) Which condition will cause the vibrating horn to sound on the...
(404) What is the rated capacity in gallons per minute (gpm) of the...
(408) Who is responsible for completing the "Maintenance Status"...
(404) What component on the Type IV hydrant system shuts down the...
(403) Which alarm indicator on the Type III system, when actuated,...
(412) What two gauges are permanently installed on cryotainers?
(406) Fuels management and civil engineering (CE)/water and fuel...
(412) Which type of heat transfer is the only one the operator can...
(406) Which Type III hydrant system valve will open to relieve thermal...
(405) Since the Type V hydrant system is not required to be manned...
(403) What is the minimum number of figures displayed on the...
(407) When performing a daily inspection of fixed hydrant system...
(406) When flushing Type III, IV, and V hydrant systems, a visual...
(415) As a minimum, liquid oxygen (LOX) storage tanks should be purged...
(416) The Air Force Technical Order (AFTO) Form 245 is
(409) When manually gauging a tank for temperature, at a minimum, how...
(403) Commonly used pumps on the Type III system are balanced...
(403) What Type III system component signals the microprocessor to...
(407) Who must inform the squadron commander, Air Force Petroleum...
(408) When should the fuels manager, fuels flight commander, and/or...
(411) How often should active storage tanks be inventoried?
(412) What type of insulation is used in the annular space of a liquid...
(406) The Defense Logistics Agency (DLA) Energy Form 702 is prepared...
(406) On a fillstand equipped with the Scully Intellitrol® control...
(406) During a transfer operation, when is water removal from the...
(406) In what section of the Defense Energy Support Center (DESC) Form...
(403) What size mesh screen is used in the Type III hydrant system...
(416) Once the last aircraft has been serviced, the Air Force...
(416) What symbol on the Air Force Technical Order (AFTO) Form 244 is...
(405) What is the constant pressure range in pounds per square inch...
(403) On the Type III hydrant system, which filter separator control...
(406) What form serves as a record for all issues and returns to bulk?
(410) At a minimum, how many measuring points does the measurement...
(407) Weekly inspections on fixed hydrant systems must be accomplished...
Which one do you like?
(403) At what liquid percentage level will the Type III hydrant system...
(412) How many gallons will a TMU–20/E cryotainer hold?
(406) Under normal conditions and as a minimum, how many hours must...
(415) The air within the air purge unit is heated to
(406) At what pressure in pounds per square inch (psi) is the...
(415) What aircraft is not authorized to transport cryogenic tanks due...
(406) What is the maximum gallons per minute (gpm) flow rate of the...
(412) The two commonly used insulating materials used in the annular...
(405) How is the deadman control valve operated on the Type V hydrant...
(406) On the Type III hydrant system, at what pressure in pounds per...
(406) The fueling control valve on the Type IV hydrant system is...
(405) On the Type V hydrant system, what size (in inches) are the...
(413) As a minimum how often should cryotainer pressure gauges be...
(416) What AFTO Form acts as a permanent history of significant...
(415) How many cryotainers can be connected in a series when...
(407) Bonding receptacles will be inspected with a pounds per square...
(417) Who is required to conduct a monthly cryogenic storage facility...
(406) Which valve(s) on the Type III hydrant system will modulate...
(408) Prior to the first servicing, a system on standby status should...
(414) Before issuing liquid oxygen/liquid nitrogen (LOX/LIN) to a...
(407) Strainers equipped with a differential pressure (DP) gauge...
(415) As a minimum, vacuum checks should be performed on cryotainers...
(416) What AF Form is used to document liquid oxygen (LOX) and liquid...
(407) When inspecting automated tank gauging (ATG) systems, what...
(403) During the Type III hydrant system's shut down process, the...
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