Liquid Fuels Volume 5

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  • 1/78 Questions

    The defuel line in the Panero Hydrant system pit has a "U" bend to do what?

    • To prevent backflow
    • To keep the entire line from draining
    • To keep objects from entering
    • To prevent surges
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About This Quiz

Liquid Fuels Volume 5 explores valve identification in fluid systems, focusing on various valve types and their specific numbering. This quiz assesses knowledge crucial for professionals in mechanical and fluid mechanics fields, enhancing operational and safety standards understanding.

Liquid Fuels Volume 5 - Quiz

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  • 2. 

    If the pump is running what should be your first step in diagnosing a fuel delivery problem?

    • Control Panel

    • As-Built Drawing

    • Pump Selector Switch

    • Vaccum Switch

    Correct Answer
    A. As-Built Drawing
    Explanation
    The correct answer is As-Built Drawing. When diagnosing a fuel delivery problem, the first step should be to consult the As-Built Drawing. This drawing provides detailed information about the layout and components of the fuel delivery system, allowing technicians to identify potential issues and locate the source of the problem. By referring to the As-Built Drawing, one can gain a better understanding of the system's design and make an informed diagnosis.

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  • 3. 

    What indicates leakage past the diaphram on the pressure relief control

    • Valve not opening correctly

    • Fuel leakage from the vent port

    • CRL not working

    • Valve not closeing

    Correct Answer
    A. Fuel leakage from the vent port
    Explanation
    Fuel leakage from the vent port indicates leakage past the diaphragm on the pressure relief control valve. The vent port is designed to release excess pressure from the system, and if fuel is leaking from it, it suggests that the diaphragm is not functioning properly and allowing fuel to escape. This can lead to a loss of pressure control and potentially unsafe conditions.

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  • 4. 

    After adjusting the high pressure CRL on the 51AF-4 rapid defuel valve, what is the last thing you should do to the CRL before leaving the area

    • Reset the CRL

    • Replace the CRL

    • Place cap back on and seal

    • Do nothing

    Correct Answer
    A. Place cap back on and seal
    Explanation
    After adjusting the high pressure CRL on the 51AF-4 rapid defuel valve, the last thing you should do to the CRL before leaving the area is to place the cap back on and seal it. This is important to ensure that the CRL is protected from any external elements that could potentially damage or contaminate it. By sealing the cap, it helps maintain the integrity of the CRL and ensures that it functions properly when it is needed again in the future.

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  • 5. 

    What is the emergency shut off valve number?

    • 132AF-9B

    • 136AF-9B

    • 134AF-4B

    • 132AF-4B

    Correct Answer
    A. 136AF-9B
  • 6. 

    During refueling, which 302AF fueling and defueling valve component is responsible for closeing the defueling side of the main valve?

    • CRD

    • CRL

    • Solenoid

    • Ejector

    Correct Answer
    A. Solenoid
    Explanation
    The solenoid is responsible for closing the defueling side of the main valve during refueling. A solenoid is an electromechanical device that uses an electrical current to generate a magnetic field, which in turn causes a mechanical action. In this case, the solenoid is activated to close the defueling side of the main valve, preventing any fuel from being removed during refueling.

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  • 7. 

    What part on the 302AF fuel and defuel valve restricts the flow of fuel in the control tubing and under normal conditons will not close

    • PRT's

    • DPT's

    • Pressure reducing control

    • Ejector-Strainer

    Correct Answer
    A. Pressure reducing control
    Explanation
    The pressure reducing control on the 302AF fuel and defuel valve restricts the flow of fuel in the control tubing. Under normal conditions, it will not close.

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  • 8. 

    Emergency stop switches at a truck loading header must be no closer than how many feet?

    • 50ft

    • 75ft

    • 25ft

    • 35ft

    Correct Answer
    A. 25ft
    Explanation
    Emergency stop switches at a truck loading header must be no closer than 25ft. This is because having the emergency stop switches at a distance of 25ft allows for a safe and accessible location in case of an emergency. It provides enough distance for the truck operator to quickly and easily reach the switch to stop the loading process if needed. Placing the switches closer than 25ft may hinder the operator's ability to reach them in a timely manner, potentially compromising safety.

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  • 9. 

    What is the range of the low range DPT piped into the return venturi on a Type 3

    • 0-50gpm

    • 0-100gpm

    • 0-300gpm

    • 0-600gpm

    Correct Answer
    A. 0-100gpm
    Explanation
    The range of the low range DPT piped into the return venturi on a Type 3 is 0-100gpm. This means that the flow rate of the fluid passing through the venturi can vary from 0 gallons per minute (gpm) to a maximum of 100 gpm.

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  • 10. 

    What opens the 362AF-8 Hydrant Control valve for refueling of an aircraft

    • Pump control panel

    • Pump control switch

    • The pneumatic deadman

    • Ejector strainer

    Correct Answer
    A. The pneumatic deadman
    Explanation
    The pneumatic deadman is responsible for opening the 362AF-8 Hydrant Control valve for refueling of an aircraft. This device is designed to automatically shut off the flow of fuel if the operator becomes incapacitated or loses control. By using air pressure, the pneumatic deadman ensures that the valve remains open only when the operator is actively holding down the control lever. This safety feature prevents any accidental spills or overflows during the refueling process.

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  • 11. 

    After refueling an aircraft and the lead pump de-energizes, at what pressure does the 58AF-9-1 defuel/flush valve close

    • 75psi

    • 80psi

    • 100psi

    • 125psi

    Correct Answer
    A. 80psi
    Explanation
    The 58AF-9-1 defuel/flush valve closes at a pressure of 80psi after the lead pump de-energizes.

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  • 12. 

    When must a Type 3 system be flushed?

    • When the system is not used in 30 days

    • When the system is not used for 60 days

    • When the system is not used for 90 days

    • When the system is not used for 120 days

    Correct Answer
    A. When the system is not used in 30 days
    Explanation
    A Type 3 system must be flushed when it is not used in 30 days. This is likely because after a certain period of inactivity, the system may accumulate bacteria or other contaminants that can affect its performance or pose a health risk. Flushing the system helps to remove any stagnant water and maintain its cleanliness and functionality.

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  • 13. 

    What type solenoid is used on the 90AF-8 refueling control valve

    • 2 port , normally opened

    • 2 port, normally closed

    • 4 port, normally opened

    • 4 port, normally closed

    Correct Answer
    A. 2 port, normally closed
    Explanation
    The correct answer is 2 port, normally closed. This means that the solenoid used on the 90AF-8 refueling control valve has two ports and is normally closed. This type of solenoid allows the flow of fluid or gas through the valve when it is not energized or powered. When the solenoid is energized, it closes the valve and stops the flow of fluid or gas.

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  • 14. 

    When you adjust the 302AF fuel,defuel valve at what rate do you set the CV Flow Control

    • 5 seconds

    • 10 seconds

    • 20 seconds

    • 30 seconds

    Correct Answer
    A. 20 seconds
    Explanation
    The CV Flow Control should be set at a rate of 20 seconds when adjusting the 302AF fuel defuel valve. This means that it will take 20 seconds for the valve to fully open or close, allowing for precise control and adjustment of the fuel flow.

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  • 15. 

    In order to calculate the differentail pressure required to adjust the CDHS-3 properly, you need to know what?

    • Flow rate, downstream pressure

    • Flow rate, upstream pressure

    • Orfice plate size, downstream pressure

    • Orfice plate size, upstream pressure

    Correct Answer
    A. Orfice plate size, downstream pressure
    Explanation
    To calculate the differential pressure required to adjust the CDHS-3 properly, you need to know the orifice plate size and the downstream pressure. The orifice plate size is important because it determines the flow restriction, and the downstream pressure is necessary to measure the pressure difference across the orifice plate. By knowing these two factors, you can calculate the differential pressure and make the necessary adjustments to the CDHS-3.

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  • 16. 

    Which component failed if the 51AF-4 rapid defuel valve opens during a refuel operation?

    • CRL

    • CRD

    • Hytrol Check

    • Ejector

    Correct Answer
    A. Hytrol Check
    Explanation
    If the 51AF-4 rapid defuel valve opens during a refuel operation, it indicates that the Hytrol Check component has failed. The Hytrol Check is responsible for preventing fuel from flowing in the wrong direction, and its failure allows the valve to open unexpectedly during refueling.

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  • 17. 

    At what differntial pressure must the recieving strainer in the type 3 system be cleaned

    • 5 psi

    • 10 psi

    • 15 psi

    • 20 psi

    Correct Answer
    A. 10 psi
    Explanation
    The receiving strainer in a type 3 system must be cleaned at a differential pressure of 10 psi. This means that when the pressure difference between the upstream and downstream sides of the strainer reaches 10 psi, it is necessary to clean the strainer to ensure proper flow and prevent clogging.

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  • 18. 

    What type of control tubing is used on the type 3 system

    • Galvanized steel

    • Seamless stainless steel

    • Aluminum

    • Cooper

    Correct Answer
    A. Seamless stainless steel
    Explanation
    Seamless stainless steel is the preferred type of control tubing used on the type 3 system. This is because stainless steel is highly resistant to corrosion, which is important for maintaining the integrity of the tubing in various environments. Additionally, the seamless construction of the tubing ensures a smooth and continuous flow of fluids or gases, minimizing the risk of leaks or blockages. Overall, seamless stainless steel tubing offers durability, reliability, and optimal performance for the type 3 system.

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  • 19. 

    How must tank outlet vavles be positioned to refuel an aircraft in a type 3 system

    • 1 open, 1 closed

    • 1 half way open, 1 open

    • Both open

    • Both closed

    Correct Answer
    A. 1 open, 1 closed
    Explanation
    In a type 3 system, the tank outlet valves must be positioned with one valve open and one valve closed in order to refuel an aircraft. This configuration allows for a controlled flow of fuel into the aircraft's tanks while preventing any potential leaks or spills. By having one valve open, fuel can flow into the tank, while the closed valve acts as a safety measure to prevent fuel from escaping or overflowing. This ensures a safe and efficient refueling process.

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  • 20. 

    After activiating a E-STOP how do you reset the system to refuel

    • Pull the E-STOP back to normal postion

    • Manually reset the controls in the pump house

    • Turn the lead pump off and turn it back on

    • The system will automatically reset

    Correct Answer
    A. Manually reset the controls in the pump house
    Explanation
    To refuel the system after activating an E-STOP, the controls in the pump house need to be manually reset. This suggests that there is a specific process or sequence of actions that need to be performed in order to resume normal operation and allow for refueling. Simply pulling the E-STOP back to its normal position or turning the lead pump off and on may not be sufficient to reset the system. The fact that the system does not automatically reset further supports the need for manual intervention in the pump house.

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  • 21. 

    What is the bypass valve's number?

    • 40-27G

    • 40-28G

    • 413AF-5A

    • 41AF-1A

    Correct Answer
    A. 40-28G
    Explanation
    The correct answer is 40-28G. This is the bypass valve's number.

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  • 22. 

    At what pressure does the 58AF-9 back pressure control valve open to control the hydrant loop pressure

    • 75psi to the furthest outlet

    • 100 psi to the furthest outlet

    • 125 psi to the furthest outlet

    • 150 psi to the furthest outlet

    Correct Answer
    A. 100 psi to the furthest outlet
    Explanation
    The back pressure control valve opens to control the hydrant loop pressure at 100 psi to the furthest outlet. This means that when the pressure in the hydrant loop reaches 100 psi, the valve will open to release excess pressure and maintain it at that level.

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  • 23. 

    How can the 413AF-5A high level shut off on a above ground tank be tested

    • Test button on the control panel

    • Fill tank till alarm sounds

    • Manaul tester on the float assembly

    • All the above

    Correct Answer
    A. Manaul tester on the float assembly
    Explanation
    The correct answer is "Manual tester on the float assembly." This is because the 413AF-5A high level shut off on an above ground tank can be tested by using a manual tester on the float assembly. This involves manually activating the shut off mechanism using the tester to ensure that it is functioning properly. The other options, such as using the test button on the control panel or filling the tank till the alarm sounds, do not specifically address the testing of the high level shut off mechanism.

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  • 24. 

    What prevents leakage due to complete failure on the type 3 refuel pump mechanical seal

    • Pump diaphram

    • Hytrol check valve

    • Non-spark throttle bushing

    • Orfice plate

    Correct Answer
    A. Non-spark throttle bushing
    Explanation
    The non-spark throttle bushing prevents leakage due to complete failure on the type 3 refuel pump mechanical seal. This is because the non-spark throttle bushing is designed to be spark-resistant, which reduces the risk of ignition and potential leakage.

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  • 25. 

    The fueling pump and motor in the type 3 system must be aligned within?

    • .2

    • .02

    • .002

    • .0002

    Correct Answer
    A. .002
    Explanation
    The fueling pump and motor in the type 3 system must be aligned within .002. This means that there should be a maximum deviation of .002 units between the pump and motor alignment. This level of precision is necessary to ensure proper functioning and efficiency of the system. Any misalignment beyond this tolerance may result in issues such as decreased fuel flow, increased wear and tear, and potential damage to the components. Therefore, it is crucial to align the pump and motor within this specified range to maintain optimal performance.

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  • 26. 

    At what pressure is the CRD on the 90AF-8 refueling control valve set at

    • 50psi

    • 100psi

    • 150psi

    • 200psi

    Correct Answer
    A. 100psi
    Explanation
    The CRD on the 90AF-8 refueling control valve is set at 100psi. This means that the valve is designed to open and allow fuel to flow when the pressure in the system reaches 100 pounds per square inch.

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  • 27. 

    The 352AF hydrant adapter controls the level at which fuel flow stops in defueling in order to prevent what

    • Water from entering the line

    • Air from entering the line

    • Excess flow

    • Fuel surges

    Correct Answer
    A. Air from entering the line
    Explanation
    The 352AF hydrant adapter controls the level at which fuel flow stops in defueling in order to prevent air from entering the line. This is important because air in the fuel line can cause disruptions in the flow and potentially lead to fuel surges or excess flow. By preventing air from entering the line, the hydrant adapter ensures a smooth and controlled defueling process.

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  • 28. 

    What is used as an overfill valve on the product recovery tank on a type 3

    • 134AF-5B

    • 134AF-9B

    • 2129AF

    • 58AF-3

    Correct Answer
    A. 2129AF
    Explanation
    The correct answer is 2129AF. This is because 2129AF is used as an overfill valve on the product recovery tank.

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  • 29. 

    What is the defuel/flush valve number

    • 58AF-9

    • 58AF-3

    • 58AF-9-1

    • 58AF-5

    Correct Answer
    A. 58AF-9-1
    Explanation
    The correct answer is 58AF-9-1. This is the defuel/flush valve number.

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  • 30. 

    During pantograph flush mode what happens to the 136AF-5B Flush Valve

    • Solenoid is de-energized to open main valve

    • Solenoid is energized to close main valve

    • Valve closes tightly

    • Valve modulates

    Correct Answer
    A. Solenoid is energized to close main valve
    Explanation
    During pantograph flush mode, the solenoid is energized to close the main valve. This means that the solenoid is supplied with electrical energy, which causes it to activate and close the valve. This action is necessary in order to prevent any water from flowing through the valve during the flush mode. By closing the main valve, the water supply is effectively shut off, allowing the flush mode to proceed without any water entering the system.

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  • 31. 

    What is the primary method of recieving fuel in a type 4 system

    • Truck

    • Barge and pipeline

    • Aircraft

    • All the above

    Correct Answer
    A. Barge and pipeline
    Explanation
    In a type 4 system, the primary method of receiving fuel is through barge and pipeline. This means that fuel is transported and delivered to the system using barges and pipelines. This method is commonly used for large-scale fuel distribution, especially in areas where access to fuel by trucks or aircraft may be limited or impractical. By utilizing barges and pipelines, the system can efficiently receive a significant amount of fuel, ensuring a steady supply for operations.

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  • 32. 

    What is the purpose of the flow switch in the type 3

    • Determine flow

    • Kill the pumps if theres excess flow

    • To lock on the lead pump

    • Signals the microprosser of flow

    Correct Answer
    A. To lock on the lead pump
    Explanation
    The purpose of the flow switch in the type 3 is to lock on the lead pump.

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  • 33. 

    When the cover chamber pressure of the 90AF-8 refueling control valve is at least as great as the inlet pressure, the valve does what

    • Opens

    • Closes tightly

    • Modulates

    • Free floats

    Correct Answer
    A. Closes tightly
    Explanation
    When the cover chamber pressure of the 90AF-8 refueling control valve is at least as great as the inlet pressure, the valve closes tightly. This means that the valve shuts off completely, preventing any flow of fluid through it. The high cover chamber pressure ensures a strong seal, preventing any leakage or backflow.

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  • 34. 

    The Pritchard system control room has how many electircal panels and what are they used for?

    • 2, pump control, hand selector, refuel pumps

    • 4, defuel pumps, hand selector, pump control

    • 1, pump, control, pump selector, defuel pumps/

    • 3, pump control, pump selector, defuel pumps

    Correct Answer
    A. 3, pump control, pump selector, defuel pumps
    Explanation
    The correct answer is 3, pump control, pump selector, defuel pumps. This answer states that the Pritchard system control room has three electrical panels. These panels are used for pump control, pump selector, and defuel pumps. This suggests that the control room is responsible for monitoring and controlling the operation of pumps and fuel transfer processes.

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  • 35. 

    How many hydrant outlets are normally installed for each 302AF fueling and defueling valve?

    • 1

    • 2

    • 3

    • 4

    Correct Answer
    A. 1
    Explanation
    Each 302AF fueling and defueling valve normally has only one hydrant outlet installed.

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  • 36. 

    What is the purpose of the limit switch on the Type 4 product recovery tank high level shut off valve

    • To open the high level shut off valve

    • To alarm when the fuel level is high

    • To signal the microprocesser when the main valve is closed

    • To test the high level alarm

    Correct Answer
    A. To signal the microprocesser when the main valve is closed
    Explanation
    The purpose of the limit switch on the Type 4 product recovery tank high level shut off valve is to signal the microprocessor when the main valve is closed. This means that when the main valve is closed, the limit switch will send a signal to the microprocessor to indicate that the valve is in the closed position. This information is important for the microprocessor to accurately monitor and control the fuel level in the tank.

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  • 37. 

    At what psi is the pressure differential control on the Type 4 emergency shut off vavle adjusted?

    • 5psi

    • 6psi

    • 7psi

    • 8psi

    Correct Answer
    A. 7psi
    Explanation
    The pressure differential control on the Type 4 emergency shut off valve is adjusted at 7psi.

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  • 38. 

    On a type 3 system, what can be used as an operating storage tank if the nearest bulk storage tank is 2 miles from the fueling apron.

    • 5,000 gallon bbl (barrel)

    • 10,000 gallon bbl (barrel)

    • 15,000 gallon bbl (barrel)

    • 20,000 gallon bbl (barrel

    Correct Answer
    A. 10,000 gallon bbl (barrel)
  • 39. 

    What size is the product recovery tank

    • 2,000 gallons

    • 4,000 gallons

    • 6,000 gallons

    • 8,000 gallons

    Correct Answer
    A. 4,000 gallons
    Explanation
    The correct answer is 4,000 gallons because it is the only option provided that matches the question asking for the size of the product recovery tank.

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  • 40. 

    What lateral control pit component cuts off the defuel pump when the hydrant outlet closes

    • Flow switch

    • Vaccum control switch

    • Return dpt's

    • Issue prt's

    Correct Answer
    A. Vaccum control switch
    Explanation
    The vacuum control switch is responsible for cutting off the defuel pump when the hydrant outlet closes. This switch detects the change in pressure when the hydrant outlet closes and triggers the cutoff mechanism for the defuel pump. It ensures that fuel flow is stopped when the hydrant outlet is closed, preventing any leaks or spills.

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  • 41. 

    What is the Combo rate of flow/ Fuel shut off valve's number?

    • 413AF-5A

    • 41AF-1A

    • 40-28G

    • 41AF-2C

    Correct Answer
    A. 41AF-2C
    Explanation
    The correct answer is 41AF-2C. The question is asking for the combo rate of flow/fuel shut off valve's number. Among the given options, 41AF-2C is the only one that matches this criteria.

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  • 42. 

    What is the hydrant refueling control valve number?

    • 362AF-4

    • 362AF-8

    • 364AF-2

    • 364AF-8

    Correct Answer
    A. 362AF-8
    Explanation
    The correct answer is 362AF-8. This number refers to the hydrant refueling control valve. The "362AF" part of the number likely indicates the specific model or type of valve, while the "-8" at the end could signify a particular version or size of the valve. Without further context, it is difficult to determine the exact meaning of the numbers, but based on the options provided, 362AF-8 is the correct answer.

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  • 43. 

    The primary purpose of the orfice plate on the 302AF fueling and defueling valve is to create a differential pressure to do what?

    • Operate the CRL

    • Operate the CRD

    • Operate the CDHS-3

    • Operate the Solenoid

    Correct Answer
    A. Operate the CDHS-3
    Explanation
    The orifice plate on the 302AF fueling and defueling valve is primarily used to create a differential pressure. This differential pressure is necessary to operate the CDHS-3.

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  • 44. 

    When you adjust the unloading CRL on the 302AF fuel , defuel valve at what pressure do you set the CRL

    • 5psi above NOP

    • 10psi above NOP

    • 15psi above NOP

    • 20psi above NOP

    Correct Answer
    A. 10psi above NOP
    Explanation
    The correct answer is 10psi above NOP. When adjusting the unloading CRL on the 302AF fuel defuel valve, it is set at 10psi above NOP (Normal Operating Pressure). This means that the pressure is increased by 10psi from the normal operating pressure in order to properly adjust the unloading CRL.

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  • 45. 

    What condition would cause a resonating horn to sound in a type 4 system

    • High level alarm

    • Fire

    • E-Stop hit

    • High pressure

    Correct Answer
    A. E-Stop hit
    Explanation
    When an E-Stop (Emergency Stop) button is pressed or hit in a type 4 system, it triggers a safety mechanism that causes the resonating horn to sound. This is a precautionary measure to alert individuals in the vicinity that an emergency situation has occurred and immediate action is required. The resonating horn is activated specifically in response to the E-Stop being hit, ensuring that the alarm is distinct and easily recognizable in order to prompt a quick and appropriate response.

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  • 46. 

    How many solenoids are on the 136AF-9B emergency shut off valve and what does the valve do when the solenoids energize?

    • 2, closes

    • 2, free floats

    • 4, closes

    • 4, opens

    Correct Answer
    A. 2, free floats
    Explanation
    The 136AF-9B emergency shut off valve has two solenoids. When the solenoids energize, the valve free floats, meaning it is not held in any fixed position.

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  • 47. 

    What is the high level shut off valve's number?

    • 40-27G

    • 41AF-1A

    • 413AF-5A

    • 41AF-2C

    Correct Answer
    A. 413AF-5A
    Explanation
    The correct answer is 413AF-5A. This is the high level shut off valve's number.

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  • 48. 

    What component aids in the opening of the 302AF fueling and defuel valve

    • CHDS-3

    • CRL

    • CRD

    • Ejector-Strainer

    Correct Answer
    A. Ejector-Strainer
    Explanation
    The ejector-strainer component aids in the opening of the 302AF fueling and defuel valve.

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  • 49. 

    How many DPT's are piped into the return venturi on a 2,400gpm Type 3 system

    • 1

    • 2

    • 3

    • 4

    Correct Answer
    A. 4
    Explanation
    In a 2,400gpm Type 3 system, four DPT's are piped into the return venturi. The return venturi is a device used in hydronic systems to measure flow rates. In this particular system, four DPT's (Differential Pressure Transmitters) are used to measure the pressure difference across the venturi. This information is then used to calculate the flow rate of the system. Therefore, the correct answer is 4.

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Quiz Review Timeline (Updated): May 17, 2023 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • May 17, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Feb 02, 2010
    Quiz Created by
    Streed08
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