Pressure Refueling Modes Overview

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Questions and Answers

What is the primary responsibility of the operator in manual refueling mode?

  • Automatically control the refueling valves
  • Calculate fuel distribution and monitor quantities (correct)
  • Physically open valves using mechanical overrides
  • Monitor tank pressures during refueling

Which mode of pressure refueling is considered the standard for modern aircraft due to its safety and efficiency?

  • Automatic mode (correct)
  • Manual mode
  • Override mode
  • Emergency mode

What happens when the preselected block fuel is reached in automatic refueling mode?

  • The refueling process automatically stops (correct)
  • Fuel will overflow into the tanks
  • The operator must reset the system
  • Refueling continues until manually stopped

What is required to use override mode for refueling?

<p>Manual operation of refueling valves (A)</p> Signup and view all the answers

What is a notable advantage of automatic refueling mode compared to manual mode?

<p>It reduces the operator's workload (B)</p> Signup and view all the answers

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Study Notes

Pressure Refueling Modes

  • There are 3 modes of pressure refueling: manual, automatic, and override.

Manual Refueling

  • Requires pre-calculation of fuel distribution
  • Refueling valves are manually controlled through a control panel.
  • Requires constant monitoring of fuel quantities in the tanks.

Automatic Refueling

  • Uses a fuel quantity control computer to calculate fuel distribution based on block fuel preselection.
  • Automatically controls the refueling valves for accurate fuel and distribution.
  • Benefits: safe, reduces workload, stops refueling at preselected fuel.
  • The standard mode on modern aircraft.

Override Refueling

  • Used when electrical power to the refueling valves is unavailable.
  • Refueling valves are opened by a mechanical override on the refueling valves, bypassing the electrical system.

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