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 (B)</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 (A)</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 (B)</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 (A)</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 (D)</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 (B)</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 (C)</p> Signup and view all the answers

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

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

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