3e451 Volume 3 Operation And Maintenance Of Hydrant Systems And Components

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  • 1/100 Questions

    (405) Approximately how long do you want it to take the fueling valve to open when you adjust the CV flow control on the 302AF fueling and defueling valve?

    • 10 seconds
    • 20 seconds
    • 30 seconds
    • 40 seconds
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Air Force Quizzes & Trivia
About This Quiz

This quiz assesses knowledge in the operation and maintenance of hydrant systems within the Air Force, focusing on control mechanisms, system diagnostics, and troubleshooting common issues. It is essential for personnel involved in direct fuel handling and infrastructure maintenance.

Quiz Preview

  • 2. 

    (401) What positions are on the pump control switch?

    • Hand/off

    • Hand/auto

    • Hand/off/auto

    • Hand/off/manual

    Correct Answer
    A. Hand/off/auto
    Explanation
    The pump control switch has three positions: hand, off, and auto. The hand position allows manual control of the pump, the off position turns the pump off, and the auto position enables automatic control of the pump. Therefore, the correct answer is hand/off/auto.

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  • 3. 

    (402) Most emergency service calls involve

    • Electrical shorts

    • No fuel delivery

    • Minor leaks

    • Jammed valves

    Correct Answer
    A. No fuel delivery
    Explanation
    Most emergency service calls involve no fuel delivery. This is because a lack of fuel can cause a vehicle or equipment to stop functioning, leading to an emergency situation. Without fuel, engines cannot operate, resulting in breakdowns or failures. This is a common issue that requires immediate attention from emergency services to ensure the safety and well-being of individuals involved.

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  • 4. 

    (414) What type of ground rods are hydrant outlets grounded to in the piping system of the type 2 hydrant system?

    • Tin

    • Black steel

    • Cast iron

    • Galvanized/Stainless steel

    Correct Answer
    A. Galvanized/Stainless steel
    Explanation
    In the piping system of a type 2 hydrant system, hydrant outlets are grounded to galvanized/stainless steel ground rods. Grounding the hydrant outlets to these types of rods helps to ensure that any electrical currents or faults are safely directed into the ground, preventing damage to the system and reducing the risk of electrical shock or fire hazards. Tin, black steel, and cast iron are not typically used for grounding rods in this type of system.

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  • 5. 

    (404) The primary purpose of the orifice plate on the 302AF fueling and defueling valve is to create differential

    • Pressure to operate the CDHS-2

    • Pressure to operate the CDHS-3

    • Flow to operate the CDHS-2

    • Flow to operate the CDHS-3

    Correct Answer
    A. Pressure to operate the CDHS-3
    Explanation
    The orifice plate on the 302AF fueling and defueling valve is primarily used to create differential pressure to operate the CDHS-3. This means that the orifice plate helps to generate a pressure difference between two points, which is necessary for the CDHS-3 to function properly. It is not used for creating flow or operating the CDHS-2, as stated in the other options.

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  • 6. 

    (426) The type III system must be flushed

    • When it is not used in 30 days

    • Before servicing an aircraft

    • After defueling an aircraft

    • After servicing an aircraft

    Correct Answer
    A. When it is not used in 30 days
    Explanation
    The correct answer is "When it is not used in 30 days." This means that the type III system, which is presumably a specific system or equipment, needs to be flushed if it has not been used for a period of 30 days. This flushing process is likely necessary to ensure that the system remains in proper working condition and to prevent any potential issues or malfunctions that could arise from prolonged periods of inactivity.

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  • 7. 

    (432) What switch, on the type IV pump control panel, looks like a red mushroom

    • Light test

    • Fire alarm

    • System reset

    • Emergency stop

    Correct Answer
    A. Emergency stop
    Explanation
    The correct answer is "Emergency stop." On the type IV pump control panel, there is a switch that resembles a red mushroom. This switch is known as the emergency stop switch. It is designed to quickly and easily shut down the system in case of an emergency or malfunction. By pressing this switch, all operations of the pump control panel will be immediately halted, ensuring safety and preventing any further damage or harm.

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  • 8. 

    (404) A damaged diaphragm on the pressure reducing control is indicated by?

    • An uncontrolled downstream flow

    • A fuel leakage from the vent port

    • Uncontrolled downstream pressure

    • Fuel leaking from the disc removal plug

    Correct Answer
    A. A fuel leakage from the vent port
    Explanation
    A damaged diaphragm on the pressure reducing control can cause a fuel leakage from the vent port. When the diaphragm is damaged, it may not be able to properly regulate the pressure, leading to excess pressure buildup. This excess pressure can cause fuel to leak from the vent port, indicating a problem with the diaphragm.

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  • 9. 

    (408) If the cover chamber pressure on the 90AF-8 refueling control valve stays between the inlet and outlet pressure, the valve

    • Pulsates

    • Modulates

    • Opens fully

    • Closes fully

    Correct Answer
    A. Modulates
    Explanation
    If the cover chamber pressure on the 90AF-8 refueling control valve stays between the inlet and outlet pressure, the valve modulates. This means that the valve adjusts the flow of fluid or gas by varying the size of the opening. It does not fully open or close, but instead regulates the flow to maintain a steady pressure within the desired range.

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  • 10. 

    (401) The pressure/flow recorder indicates which of the following?

    • System pressure and issue flow rate

    • System pressure and issue/return flow rates

    • Issue/return flow rates and tank liquid level

    • Filter/separator differential pressure and tank liquid level

    Correct Answer
    A. System pressure and issue/return flow rates
    Explanation
    The pressure/flow recorder indicates system pressure and issue/return flow rates. This means that the recorder is able to measure and display the pressure within the system, as well as the flow rates of the fluid being issued and returned. This information is important for monitoring and analyzing the performance of the system, as well as identifying any potential issues or abnormalities in the flow rates.

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  • 11. 

    (424) What happens if the third pump is called on automatically in a type III system and fails to start?

    • The next pump in the predetermined sequence is called on

    • Only the lead and second pump continue to run

    • An alarm will sound and the entire system shuts down

    • A light in the pumphouse illuminates and a vibrating horn sounds

    Correct Answer
    A. The next pump in the predetermined sequence is called on
    Explanation
    If the third pump fails to start in a type III system, the next pump in the predetermined sequence will be automatically called on. This means that the system will move on to the fourth pump and attempt to start it.

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  • 12. 

    (403) How many hydrant outlets are served by each panero pit?

    • 1

    • 2

    • 3

    • 4

    Correct Answer
    A. 1
    Explanation
    Each panero pit serves only one hydrant outlet.

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  • 13. 

    (404) What component closes the main valve of the 302AF fueling/defueling valve when there is excess flow at the hydrant outlet?

    • CRD

    • CDHS-3

    • Loaded CRL

    • CV flow control

    Correct Answer
    A. CDHS-3
    Explanation
    The CDHS-3 component closes the main valve of the 302AF fueling/defueling valve when there is excess flow at the hydrant outlet.

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  • 14. 

    (408) What happens to the auxiliary hytrols A and B, on the 90AF-8 refueling control valve, when excess flow trips the CDHS-3 pressure differential control?

    • A and B close

    • A and B open

    • A opens and B closes

    • A closes and B opens

    Correct Answer
    A. A opens and B closes
    Explanation
    When the CDHS-3 pressure differential control detects excess flow, it trips and activates a mechanism that causes auxiliary hytrol A to open and auxiliary hytrol B to close.

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  • 15. 

    (422) What does the first symbol in a rung of ladder logic represent?

    • Contacts

    • Timer

    • Output

    • Counter

    Correct Answer
    A. Contacts
    Explanation
    The first symbol in a rung of ladder logic represents contacts. Contacts are used to represent the input conditions or events that must be true in order for the rung to be active. They can be normally open (NO) or normally closed (NC) and are used to control the flow of current in the ladder logic circuit.

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  • 16. 

    (406) To remedy a leakage on the Philidelphia hydrant adapter, which one of the following would you usually replace?

    • The coupling poppet

    • The vacuum breaker

    • The flange gasket

    • The solenoid

    Correct Answer
    A. The flange gasket
    Explanation
    To remedy a leakage on the Philadelphia hydrant adapter, the most common component that would need to be replaced is the flange gasket. The flange gasket is responsible for creating a tight seal between two connecting parts, in this case, the hydrant adapter and the hydrant. If there is a leakage, it indicates that the flange gasket is worn out or damaged and needs to be replaced to restore the proper seal and prevent further leakage.

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  • 17. 

    (407) How many manual valves are found in the lateral control pit of the Pritchard system?

    • 1

    • 2

    • 3

    • 4

    Correct Answer
    A. 3
    Explanation
    In the lateral control pit of the Pritchard system, there are three manual valves.

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  • 18. 

    (430) What type fueling pumps are used in a type IV cut and cover tank?

    • Deep well turbine pumps, 600 gallons per minute (gpm)

    • Deep well turbine pumps, 1200 gpm

    • Horizontal centrifugal pumps, 600 gpm

    • Horizontal centrifugal pumps, 1200 gpm

    Correct Answer
    A. Deep well turbine pumps, 600 gallons per minute (gpm)
    Explanation
    Deep well turbine pumps are used in a type IV cut and cover tank. These pumps are capable of pumping fuel at a rate of 600 gallons per minute (gpm). They are specifically designed for deep well applications and are commonly used in underground storage tanks. The use of deep well turbine pumps ensures efficient and reliable fueling operations in the tank. Horizontal centrifugal pumps, on the other hand, are not suitable for this type of tank as they are not designed for deep well applications. Additionally, the 1200 gpm option is incorrect as it exceeds the specified pumping capacity for this type of tank.

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  • 19. 

    (407) What lateral control pit component automatically cuts off the defuel pump when a predetermined amount of inches of mercury is reached?

    • Solenoid control switch

    • Pump circuit breaker

    • Vacuum control switch

    • Panel selector switch

    Correct Answer
    A. Vacuum control switch
    Explanation
    The vacuum control switch is the correct answer because it automatically cuts off the defuel pump when a predetermined amount of inches of mercury is reached. This switch is responsible for controlling the flow of vacuum to various components in the lateral control pit, including the defuel pump. Once the predetermined amount of inches of mercury is reached, the switch activates and shuts off the pump to prevent any further fueling and maintain safety.

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  • 20. 

    (422) How long will the back-up battery maintain the type III microprocessors memory?

    • 15 days maximum

    • 30 days minimum

    • 45 days maximum

    • 60 days minimum

    Correct Answer
    A. 30 days minimum
    Explanation
    The back-up battery will maintain the type III microprocessor's memory for a minimum of 30 days. This means that even if there is a power outage or the main power source fails, the back-up battery will ensure that the memory of the microprocessor remains intact for at least 30 days.

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  • 21. 

    (413) What is the probable cause when the 41AF-10 main valve opens during refueling?

    • Leakage through normally open solenoid valve

    • Leakage through normally closed solenoid valve

    • Leakage through solenoid valve during slow flow

    • Check valve installed backwards

    Correct Answer
    A. Leakage through normally closed solenoid valve
    Explanation
    The probable cause when the 41AF-10 main valve opens during refueling is leakage through the normally closed solenoid valve. This means that the solenoid valve, which is supposed to be closed during refueling, is experiencing leakage and allowing fuel to pass through it. This can lead to unintended opening of the main valve and potentially cause safety hazards during refueling operations.

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  • 22. 

    (419) At what full percentage does the overfill valve close in the product recovery tank in a type III system?

    • 65

    • 70

    • 75

    • 80

    Correct Answer
    A. 80
    Explanation
    In a type III system, the overfill valve in the product recovery tank closes at a full percentage of 80. This means that when the tank reaches 80% capacity, the overfill valve will automatically shut off to prevent any further filling and avoid overfilling the tank.

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  • 23. 

    (420) Defining temperature rating for motors used with fueling pumps in the type III system is the responsibility of the

    • National Fire Protection Agency 70

    • Major command fuels engineer

    • American Petroleum Institute

    • National Society of Engineers

    Correct Answer
    A. National Fire Protection Agency 70
    Explanation
    The National Fire Protection Agency 70 is responsible for defining the temperature rating for motors used with fueling pumps in the type III system.

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  • 24. 

    (424) What happens to the lead, second, third, and fourth pump when the issue venturi senses 2400 gpm and the return venturi senses 1000 gpm for 15 seconds?

    • The fourth pump is called on

    • The fourth pump is called off

    • The four pumps are called on

    • The four pumps continue to run

    Correct Answer
    A. The fourth pump is called off
    Explanation
    When the issue venturi senses 2400 gpm and the return venturi senses 1000 gpm for 15 seconds, it indicates that there is an excess flow in the system. In order to balance the flow and prevent damage, the fourth pump is called off. This helps to regulate the flow and maintain stability in the pumping system.

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  • 25. 

    (426) To flush a type III system, you must turn the selector switch on the pump control panel to

    • "Flush" and all available pump switches to "hand"

    • "Automatic" and all available pump switches to "hand"

    • "Flush" and half the available pump switches to "hand"

    • "Automatic" and half the available pump switches to "hand"

    Correct Answer
    A. "Flush" and all available pump switches to "hand"
    Explanation
    To flush a type III system, the correct procedure is to turn the selector switch on the pump control panel to "Flush" and all available pump switches to "hand". This means that the system will be manually operated by hand pumps during the flushing process. The "Flush" setting ensures that the system is in the correct mode for flushing, and using all available pump switches to "hand" ensures that all pumps are manually operated to flush the system thoroughly.

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  • 26. 

    (432) What do blue lines on the type IV pump control panel graphic display represent?

    • The receiving line

    • The pump suction line

    • The pump discharge and fueling loop

    • The system refueling loop return line

    Correct Answer
    A. The pump discharge and fueling loop
    Explanation
    The blue lines on the type IV pump control panel graphic display represent the pump discharge and fueling loop. This means that these lines indicate the path through which the fuel is pumped out and circulated for fueling purposes.

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  • 27. 

    (417) What type steel is used in the control tubing of the type III system?

    • Copper

    • Carbon

    • Galvanized

    • Stainless Steel

    Correct Answer
    A. Stainless Steel
    Explanation
    Stainless steel is the correct answer for the type of steel used in the control tubing of the type III system. Stainless steel is a durable and corrosion-resistant material that is commonly used in various industries, including oil and gas. It is preferred for control tubing as it can withstand high pressure and temperature conditions, ensuring the safe and efficient operation of the system. Copper, carbon, and galvanized steel are not suitable for control tubing in this context as they do not possess the same level of corrosion resistance and strength as stainless steel.

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  • 28. 

    (419) Where is the ball float for the 413AF-5A high-level shut-off valve on an operating storage tank located?

    • On top of the tank in the float well

    • On top of the tank in the gauging well

    • On the exterior side of the tank at the required shut-off height

    • On the interior side of the tank at the require shut-off height

    Correct Answer
    A. On the exterior side of the tank at the required shut-off height
    Explanation
    The ball float for the 413AF-5A high-level shut-off valve is located on the exterior side of the tank at the required shut-off height. This means that the float is positioned outside of the tank, at a specific height that allows it to effectively shut off the valve when the tank reaches a certain level. Placing the float on the exterior side of the tank ensures that it is easily accessible for maintenance and inspection purposes.

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  • 29. 

    (419) A type III operating storage tank level indicator servo compartment must be approved for hazardous locations and listed for use in class I

    • Division I, Group C

    • Division I, Group D

    • Division II, Group C

    • Division II, Group D

    Correct Answer
    A. Division I, Group D
    Explanation
    The correct answer is Division I, Group D. This is because a type III operating storage tank level indicator servo compartment must be approved for hazardous locations and listed for use in class I, division I. Division I indicates that the hazardous material is present continuously or intermittently during normal operations, and Group D represents a hazardous material that is a flammable gas or vapor. Therefore, Division I, Group D is the appropriate classification for the operating storage tank level indicator servo compartment.

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  • 30. 

    (420) What millampere (mA) signal does the differential pressure transmitter send when 1200 gallons per minute flows through the issue venturi in the type III system

    • 4 mA

    • 8 mA

    • 12 mA

    • 20 mA

    Correct Answer
    A. 12 mA
    Explanation
    The differential pressure transmitter sends a milliampere (mA) signal that corresponds to the flow rate through the venturi in the type III system. In this case, when 1200 gallons per minute flows through the venturi, the transmitter sends a signal of 12 mA.

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  • 31. 

    (421) The 352AF-8 hydrant control valve opens when an aircraft is refueling. It opens by using the

    • Remote-sensing pressure reducing control

    • Control valve flow control valve

    • Hydraulic deadman

    • The pneumatic deadman

    Correct Answer
    A. The pneumatic deadman
    Explanation
    The correct answer is the pneumatic deadman. The pneumatic deadman is a safety device that is used to control the flow of fuel during refueling operations. It is designed to automatically shut off the flow of fuel if the operator releases the deadman handle or if there is a loss of pressure in the system. This helps to prevent overfilling or fuel spills, ensuring the safety of the aircraft and personnel involved in the refueling process.

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  • 32. 

    (421) Solenoid "B" on the 58AF-9-1 defuel/flush valve energizes to allow the main valve to open only when the

    • Fueling pumps are started manually

    • Fueling pumps started automatically

    • System is placed in the flush mode

    • System is placed in the automatic mode

    Correct Answer
    A. System is placed in the flush mode
    Explanation
    When the system is placed in the flush mode, solenoid "B" on the 58AF-9-1 defuel/flush valve energizes. This energization allows the main valve to open, enabling the flushing process to occur. The other options, such as manually starting the fueling pumps or placing the system in automatic mode, do not directly relate to the energization of solenoid "B" or the opening of the main valve.

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  • 33. 

    (407) When you place a magnet on the defuel magnetic control switch, during defueling, the solenoid on the

    • Refueling control valve and defueling valve are energized

    • Defueling control valve and the defueling pump are energized

    • Rate-of-flow control valve and defuel pump are energized

    • Defueling control valve and deep-well turbine pumps are energized

    Correct Answer
    A. Defueling control valve and the defueling pump are energized
    Explanation
    When you place a magnet on the defuel magnetic control switch, it activates the defueling control valve and the defueling pump. This allows for the fuel to be pumped out of the system and into a separate container or storage tank. The activation of these components ensures that the defueling process can occur smoothly and efficiently.

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  • 34. 

    (408) The pressure relief control, on the 90AF-8 is set to

    • 5 pounds per square inch (psi) higher than the normal operating pressure

    • 5 psi higher than the inlet pressure of the 90AF-8

    • 5 psi higher than the 51AF-4

    • 5 higher than the normal inlet pressure of the 51AF-4

    Correct Answer
    A. 5 pounds per square inch (psi) higher than the normal operating pressure
    Explanation
    The pressure relief control on the 90AF-8 is set to 5 pounds per square inch (psi) higher than the normal operating pressure. This means that when the pressure in the system exceeds the normal operating pressure, the relief control will activate and release the excess pressure to maintain the system within safe limits. By setting the relief pressure 5 psi higher than the normal operating pressure, it ensures that the relief control will only activate when necessary and prevent any potential damage or failure in the system.

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  • 35. 

    (409) Which of the following would probably cause the 90AF-8 refueling control valve to open, then close?

    • Auxiliary hytrol A closing

    • CDHS-3 tripping

    • Solenoid never energizing

    • Pressure relief control set too high

    Correct Answer
    A. CDHS-3 tripping
    Explanation
    The CDHS-3 tripping would probably cause the 90AF-8 refueling control valve to open, then close. The CDHS-3 is a system that monitors and controls various functions in the refueling process. If it trips, it indicates a malfunction or abnormal condition, which could lead to the valve opening and then closing as a safety measure to prevent any further issues or damage.

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  • 36. 

    (410) Which statement best describes what is removed from the strainer orifice used on the 50AF-2 pressure relief valve?

    • Only the primary jet

    • Only the secondary jet

    • The primary and secondary jets

    • Neither the primary nor the secondary jets

    Correct Answer
    A. Only the primary jet
    Explanation
    The strainer orifice used on the 50AF-2 pressure relief valve removes only the primary jet. The primary jet is the main flow of fluid that passes through the orifice. The secondary jet, on the other hand, is not removed. Therefore, the correct answer is that only the primary jet is removed from the strainer orifice.

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  • 37. 

    (414) When defueling stops, the 352AF hydrant adapter controls its own fuel level in order to

    • Keep moisture out of the system

    • Prevent corrosion in the piping system

    • Keep the fuel pressure from getting too high

    • Prevent air from entering the installed piping system

    Correct Answer
    A. Prevent air from entering the installed piping system
    Explanation
    The 352AF hydrant adapter controls its own fuel level in order to prevent air from entering the installed piping system. This is important because air can cause disruptions in the fuel flow and can lead to issues such as fuel starvation or airlock. By maintaining a consistent fuel level, the hydrant adapter ensures that only fuel is present in the system, preventing any air from entering and potentially causing damage or disruptions in the fuel supply.

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  • 38. 

    (419) What size piping is used to connect the pressure reliefs and other drains to the product recovery tank in a type III system?

    • 1/2-inch

    • 1-inch

    • 1 1/2-inch

    • 2-inch

    Correct Answer
    A. 2-inch
    Explanation
    In a type III system, the pressure reliefs and other drains are connected to the product recovery tank using 2-inch piping. This size of piping is necessary to ensure the efficient flow and drainage of fluids from the system. Smaller sizes like 1/2-inch or 1-inch may not be sufficient to handle the volume of fluids and could result in clogging or inadequate drainage. Similarly, a 1 1/2-inch pipe may be too small for optimal flow, while a 2-inch pipe provides the necessary capacity for proper drainage.

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  • 39. 

    (420) Each issue filter separator in the type III system is rated for how many gallons per minute?

    • 600

    • 800

    • 1200

    • 2400

    Correct Answer
    A. 600
    Explanation
    Each issue filter separator in the type III system is rated for 600 gallons per minute.

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  • 40. 

    (423) To set up the pump control panel for fueling on the type III system, after selecting the lead pump, you then place the system in

    • Manual and push the SYSTEM STOP button

    • Manual and push the SYSTEM START button

    • Automatic and push the SYSTEM STOP button

    • Automatic and push the SYSTEM START button

    Correct Answer
    A. Automatic and push the SYSTEM START button
    Explanation
    To set up the pump control panel for fueling on the type III system, the correct procedure is to select the lead pump first. After that, the system should be placed in automatic mode, which allows for automatic control of the pump. Finally, the SYSTEM START button should be pushed to initiate the fueling process.

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  • 41. 

    (428) What size mesh screen is used in the receiving strainer of a type IV system?

    • 40

    • 60

    • 80

    • 100

    Correct Answer
    A. 60
    Explanation
    The correct answer is 60. In a type IV system, the receiving strainer uses a mesh screen with a size of 60. This size is specifically chosen to allow the desired amount of liquid to pass through while filtering out any larger particles or debris that could potentially clog the system or cause damage. A mesh screen with a smaller size would restrict the flow too much, while a larger size would allow too many particles to pass through. Therefore, a size of 60 is the appropriate choice for the receiving strainer in a type IV system.

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  • 42. 

    (404) When operating normally, what part of the 302AF fueling/defueling valve restricts the flow of fuel in the control tubing and will not close?

    • Ejector strainer

    • CV flow control

    • Pressure relief control

    • Pressure-reducing control

    Correct Answer
    A. Pressure-reducing control
    Explanation
    The pressure-reducing control is the part of the 302AF fueling/defueling valve that restricts the flow of fuel in the control tubing and will not close when operating normally.

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  • 43. 

    (414) After activating an emergency stop switch at the type 2 hydrant outlet, you reset the system to refuel by

    • Placing the magnet on the refuel magnetic control station switch

    • Placing the cover back on the emergency switch

    • Manually resetting the controls in the lateral control pit

    • Manually resetting the controls in the pumphouse control room

    Correct Answer
    A. Manually resetting the controls in the pumphouse control room
    Explanation
    After activating the emergency stop switch at the type 2 hydrant outlet, the system needs to be manually reset. This manual reset is done in the pumphouse control room. This means that the controls in the pumphouse control room need to be adjusted or reset in order to resume the refueling process.

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  • 44. 

    (421) At what pressure, in pounds per square inch, does the 58AF-9 back pressure control valve open to control the hydrant loop pressure?

    • 80 at the nearest hydrant outlet

    • 80 at the farthest hydrant outlet

    • 100 at the nearest hydrant outlet

    • 100 at the farthest hydrant outlet

    Correct Answer
    A. 100 at the farthest hydrant outlet
    Explanation
    The correct answer is 100 at the farthest hydrant outlet. This means that the 58AF-9 back pressure control valve will open to control the hydrant loop pressure when the pressure at the farthest hydrant outlet reaches 100 pounds per square inch.

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  • 45. 

    (412) What condition exists when fuel leaks past the 134AF main valve disc and seat?

    • The 50AF-2 valve does not open

    • Hydrant pressure becomes very high

    • The defuel pump rotates slowly during refueling

    • The refueling valve opens and clsoes

    Correct Answer
    A. The defuel pump rotates slowly during refueling
    Explanation
    When fuel leaks past the 134AF main valve disc and seat, the defuel pump rotates slowly during refueling.

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  • 46. 

    (406) What components are magnetized when you place a magnet on the refuel contact points at the hydrant on the modified panero system?

    • The 302AF electrical solenoid only

    • The deep-well pump only

    • The 302AF solenoid and the defueling pump

    • The deep-well turbine pump and the 302AF electrical solenoid

    Correct Answer
    A. The deep-well turbine pump and the 302AF electrical solenoid
    Explanation
    When a magnet is placed on the refuel contact points at the hydrant on the modified panero system, the components that are magnetized are the deep-well turbine pump and the 302AF electrical solenoid.

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  • 47. 

    (419) When fuel reaches the high-high level alarm setting, the high-high level alarm window on the pump control panel (PCP) is activated on a type III operating storage tank. How do you see and hear the warnings?

    • By a flashing PCP and vibrating horn sounds

    • By an illuminating PCP and vibrating horn sounds

    • By a flashing PCP and resonating horn sounds

    • By an illuminating PCP and resonating horn sounds

    Correct Answer
    A. By a flashing PCP and resonating horn sounds
    Explanation
    When fuel reaches the high-high level alarm setting on a type III operating storage tank, the pump control panel (PCP) will flash to visually indicate the warning. Additionally, a resonating horn will sound to audibly alert the operator of the high-high level alarm. This combination of flashing PCP and resonating horn sounds allows for both visual and auditory warnings to be received by the operator.

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  • 48. 

    (419) What size is the product recovery tank?

    • 2,000 gallons

    • 3,000 gallons

    • 4,000 gallons

    • 5,000 gallons

    Correct Answer
    A. 4,000 gallons
    Explanation
    The product recovery tank has a size of 4,000 gallons.

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  • 49. 

    (620) When the two solenoids on the 136AF-9B emergency shut-off valve are energized, what happens to the valve?

    • It closes only

    • It opens only

    • It reenergizes

    • It free floats

    Correct Answer
    A. It free floats
    Explanation
    When the two solenoids on the 136AF-9B emergency shut-off valve are energized, the valve does not open or close, but rather it free floats. This means that it is not fixed in either the open or closed position, but can move freely based on the conditions and pressure in the system.

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Quiz Review Timeline (Updated): Mar 22, 2023 +

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  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Sep 25, 2013
    Quiz Created by
    Pggomoljak328

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