CASA Part 66: Spring Inspection and Testing
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Questions and Answers

What is the primary consequence of overheating on a spring?

  • It changes the heat treatment and temper of the spring steel (correct)
  • It causes corrosion on the surface of the spring
  • It increases the tension of the spring
  • It increases the durability of the spring

    • What is the effect of a nick or scratch on a spring?

  • It increases the spring's resistance to corrosion
  • It improves the spring's durability
  • It concentrates stress and leads to a fracture (correct)
  • It redistributes the stress evenly throughout the spring

    • Why is spring steel particularly vulnerable to corrosion?

  • It is not heat-treated
  • It is exposed to high temperatures
  • Its nature makes it prone to corrosion (correct)
  • It is a type of alloy

    • What is the result of corrosion on a spring?

    <p>It leads to surface deterioration and adds to stress or fatigue failure</p> Signup and view all the answers

    What can be inferred about the operating environment of a spring?

    <p>It is vulnerable to failure due to its environment and task</p> Signup and view all the answers

    According to the maintenance manual, what is the basis for the inspection and testing of springs?

    <p>The major assembly to which the spring belongs</p> Signup and view all the answers

    What is the purpose of measuring the compression strength of a spring?

    <p>To ensure the spring is within tolerance</p> Signup and view all the answers

    What is the consequence of spring distortion?

    <p>Impact on the control the spring exercises over a mechanism</p> Signup and view all the answers

    What is the purpose of checking the free length of a spring?

    <p>To ensure the spring is not buckled or distorted</p> Signup and view all the answers

    Why is it important to replace a spring with the correctly identified part?

    <p>To avoid incorrect function of the major assembly</p> Signup and view all the answers

    What is the purpose of coloured paint marks on some springs?

    <p>To identify their particular range</p> Signup and view all the answers

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