Aircraft Fuel System: Fuel Heater Operation
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Questions and Answers

What is the primary function of the fuel heater?

  • To warm the fuel to a predetermined temperature (correct)
  • To mix fuel with air
  • To regulate the flow of fuel into the engine
  • To cool the fuel
  • What is used to sense the fuel temperature?

  • A temperature sensor as the fuel leaves the fuel heater (correct)
  • A temperature sensor in the fuel cooled oil cooler
  • A temperature sensor in the engine
  • A temperature sensor in the fuel heater
  • What is the purpose of the valve in the fuel heater system?

  • To regulate the flow of compressor bleed air into the engine
  • To regulate the flow of fuel into the engine
  • To regulate the flow of hot air into the fuel heater (correct)
  • To regulate the flow of cooled oil into the fuel heater
  • Where is the fuel temperature indicated?

    <p>On the flight deck</p> Signup and view all the answers

    What is the purpose of the automatic temperature control?

    <p>To open or close the valve which regulates the entry of hot air into the fuel heater</p> Signup and view all the answers

    What is the primary function of the low pressure fuel filter?

    <p>To protect the fuel control unit and high pressure fuel pump from dirt and contamination</p> Signup and view all the answers

    What is the smallest particle size that the low pressure fuel filter can filter out?

    <p>50 microns</p> Signup and view all the answers

    What is the unit of measurement for the fuel flow rate in the fuel flowmeter?

    <p>Gallons per hour</p> Signup and view all the answers

    What is the purpose of the integrating system in the fuel flowmeter?

    <p>To add the total amount of fuel used</p> Signup and view all the answers

    What is the type of filter element used in the low pressure fuel filter?

    <p>Replaceable paper</p> Signup and view all the answers

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