GTS Mod 9 Difficult
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Questions and Answers

What material is fire extinguisher plumbing usually made of?

  • Copper
  • Stainless steel (correct)
  • Aluminum
  • Plastic
  • Why should plumbing never be stretched during installation?

  • To meet regulatory standards
  • To ensure it fits properly (correct)
  • To make the installation process faster
  • To save money on materials
  • What is a key precaution to observe when installing fire extinguisher plumbing?

  • Stretch it to fit if necessary
  • Support it with pipe clamps (correct)
  • Mount it on electrical looms
  • Ensure it is routed where it can be damaged easily
  • Which personnel are authorized to perform maintenance on explosive cartridges systems according to the text?

    <p>Only suitably trained and authorised personnel</p> Signup and view all the answers

    What should be the approval process for any new replacement or manufactured fire extinguisher plumbing lines?

    <p>Approval from the System Program Office or an approved authority</p> Signup and view all the answers

    Why should plumbing never be attached to electrical looms during installation?

    <p>To avoid interference with electrical systems</p> Signup and view all the answers

    What is the primary function of the Inconel tube in the Fenwal fire-detecting element?

    <p>To provide a protective sheath</p> Signup and view all the answers

    Which two companies' sensors are commonly referred to as fire-wire due to their similar construction?

    <p>Fenwal and Walter</p> Signup and view all the answers

    What is the range of lengths in which tubular fire detectors are manufactured for modern aircraft?

    <p>Less than one meter to over four meters</p> Signup and view all the answers

    What is the typical diameter range of tubular fire detectors used in modern aircraft?

    <p>1.5 to 2.3mm</p> Signup and view all the answers

    What material fills the space between the centre conductor and the tubing wall in the Fenwal fire-detecting element?

    <p>Ceramic insulating material</p> Signup and view all the answers

    In the context of fire detection systems on aircraft, what is the primary role of the Fenwal, Walter, and Kidde sensors?

    <p>Detecting overheat or fire conditions</p> Signup and view all the answers

    What happens to the eutectic salt mixture when the sensing element is exposed to a fire?

    <p>It melts, causing the resistance of the ceramic material to decrease.</p> Signup and view all the answers

    What role does the ceramic material play in a thermal switch fire detection system under normal conditions?

    <p>Acts as an insulator and prevents current flow between inner and outer conductors.</p> Signup and view all the answers

    What is the function of the eutectic salt mixture in the sensing element of a fire detection system?

    <p>Facilitates rapid change in resistance of the ceramic material in case of a fire.</p> Signup and view all the answers

    In what scenario would current flow between the inner and outer conductors of a fire detection system be initiated?

    <p>When the temperature of the sensing element is low.</p> Signup and view all the answers

    What is one significant similarity between the Walter Kidde and Fenwal fire detection sensors?

    <p>Both contain two wire conductors embedded in thermistor material.</p> Signup and view all the answers

    What is the function of one of the inner conductors being grounded in the Walter Kidde fire detection sensor?

    <p>To prevent short circuits between conductors.</p> Signup and view all the answers

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