GTS Mod 9 Moderate
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Questions and Answers

What material is fire extinguisher plumbing usually made of?

  • Copper
  • Aluminum
  • PVC
  • Stainless steel (correct)
  • What should be avoided when installing plumbing?

  • Not using pipe clamps to support the lines
  • Stretching the plumbing to make it fit (correct)
  • Attaching the plumbing to electrical looms
  • Routing the plumbing near electrical components
  • Who must approve any new replacement or manufactured lines for fire extinguisher plumbing?

  • Fire Marshal
  • System Program Office (correct)
  • Plumbing contractor
  • Manufacturer
  • Which component should never have the plumbing routed near it according to the text?

    <p>Electrical looms</p> Signup and view all the answers

    What is an essential requirement mentioned for lines in fire extinguisher plumbing installation?

    <p>Being supported by pipe clamps</p> Signup and view all the answers

    What are the three types of tubular fire detection elements mentioned in the text?

    <p>Fenwal, Walter Kidde, Systron-Donner</p> Signup and view all the answers

    What is the diameter range of tubular fire detectors mentioned in the text?

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

    Which material acts as a protective sheath and the outer conductor in the Fenwal fire-wire?

    <p>Inconel</p> Signup and view all the answers

    What is the function of the space between the centre conductor and the tubing wall in the Fenwal fire-wire?

    <p>Filled with a porous ceramic insulating material</p> Signup and view all the answers

    What are Fenwal and Walter Kidde sensors commonly referred to as due to their construction similarity?

    <p>Fire-wire</p> Signup and view all the answers

    What acts as an insulator when the temperature of the sensing element is low?

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

    What happens when the eutectic salt melts in response to a high temperature?

    <p>Resistance of the ceramic material falls rapidly</p> Signup and view all the answers

    Which material are the wire conductors embedded in within the Walter Kidde fire detection element?

    <p>Thermistor material</p> Signup and view all the answers

    What is the outcome when the thermistor material has high electrical resistance at low temperatures?

    <p>Minimal current flows between the inner conductors</p> Signup and view all the answers

    What happens to the resistance of the ceramic material when exposed to a fire?

    <p>Falls rapidly</p> Signup and view all the answers

    What purpose do adjustment screws serve in a thermal switch sensor?

    <p>To calibrate the sensor</p> Signup and view all the answers

    What happens to the spring-bow assembly contacts when pressure within the tube increases?

    <p>They separate</p> Signup and view all the answers

    How does the tube in a thermal switch sensor behave when heat is applied?

    <p>It expands</p> Signup and view all the answers

    What is a thermocouple primarily used for?

    <p>Generating a small electrical current</p> Signup and view all the answers

    What determines the amount of current flowing in a thermocouple loop?

    <p>The temperature difference between the junctions</p> Signup and view all the answers

    What happens to the resistance of the thermistor material when exposed to high temperature?

    <p>Falls rapidly</p> Signup and view all the answers

    What initiates a fire warning in the context of the text?

    <p>Increased current flow between conductors</p> Signup and view all the answers

    What is the purpose of the metallic gas-absorption core material in the sensor responder?

    <p>Releasing hydrogen gas at high temperatures</p> Signup and view all the answers

    What gas is used to pressurize the area between the inert metal tape and the outer tubing in the sensor?

    <p>Helium</p> Signup and view all the answers

    Which component of the sensor responder contains pressure switches?

    <p>Responder unit</p> Signup and view all the answers

    What component allows the aircrew to discharge fire extinguishant to the appropriate engine?

    <p>HRD button</p> Signup and view all the answers

    Where are detectors typically installed on aircraft?

    <p>Where there is a high possibility of fire, overheating, smoke, or toxic gas</p> Signup and view all the answers

    What material is used to make the heat-sensitive expansion tube in a thermal switch?

    <p>Alloy</p> Signup and view all the answers

    What can cause the detectors to become unserviceable?

    <p>Incorrect handling</p> Signup and view all the answers

    Which part of the thermal switch consists of two electrical contacts mounted on a spring-bow assembly?

    <p>Electrical contacts</p> Signup and view all the answers

    What is the main purpose of using halogenated hydrocarbon agents for fire extinguishing in aircraft engine compartments?

    <p>To disrupt the chemical combination between oxygen and fuel</p> Signup and view all the answers

    Which chemical is described as having relatively low toxicity among the Halon agents mentioned in the text?

    <p>Halon 1211</p> Signup and view all the answers

    Where is Halon 1301 commonly stored when used for protecting aircraft power plant systems?

    <p>In spherical High Rate Discharge (HRD) bottles</p> Signup and view all the answers

    Which of the following statements about Halon 1301 is TRUE based on the text?

    <p>It is non-corrosive and least toxic among modern fire-extinguishing agents</p> Signup and view all the answers

    What type of bottles are used to store Halon 1301 for protection of aircraft power plant systems?

    <p>Spherical High Rate Discharge (HRD) bottles</p> Signup and view all the answers

    How do halogenated hydrocarbon agents like Halon 1211 and Halon 1301 control fires effectively?

    <p>By disrupting the chemical reactions between oxygen and fuel</p> Signup and view all the answers

    What distinguishes Halon 1301 from other modern fire-extinguishing agents?

    <p>Its non-corrosive and low toxicity properties</p> Signup and view all the answers

    What mechanism do Halon agents utilize to disrupt fires in aircraft engine compartments?

    <p>Disrupting the chemical combination between oxygen and fuel</p> Signup and view all the answers

    Which characteristic makes Halon 1211 a preferred agent for effective fire extinguishing?

    <p>Relatively low toxicity</p> Signup and view all the answers

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