Mechanical Engineering Department Marks and Hours Distribution Quiz
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Questions and Answers

What is the primary focus of failure analysis?

  • Collecting and analyzing data
  • Environmental conditions
  • Determining the root cause of a failure (correct)
  • Operating loads

    • Which of the following is NOT an example of harsh environments that commonly induce failure?

  • Chemically reactive environment
  • Low humidity environment (correct)
  • High temperature environment
  • Corrosive environment

    • What are examples of operating conditions that frequently cause material failure?

  • Stress concentration and fracture toughness
  • Distortion and crack propagation
  • Impact and frictional loading (correct)
  • Corrosive environment and high temperature

    • Which chapter in the content deals with 'Failure Due To Overload'?

    <p>Chapter 2</p> Signup and view all the answers

    What is the purpose of a failure analysis report?

    <p>To document the root cause of a failure</p> Signup and view all the answers

    What is stress concentration often associated with in terms of material failure?

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

    What is the first critical step in failure prevention according to the text?

    <p>Selecting appropriate materials</p> Signup and view all the answers

    What method can be used to evaluate the magnitude of stress?

    <p>Loading situation data</p> Signup and view all the answers

    Which process may create gas porosity and segregation?

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

    What is used to analyze the phases, inclusions, and corrosion products?

    <p>Energy dispersive X-ray spectroscopy (SEM/EDX)</p> Signup and view all the answers

    What can reveal depth of hardening, grain size, and non-metallic inclusions?

    <p>Metallographic examination</p> Signup and view all the answers

    What is a common failure cause according to the text?

    <p>Fabrication defects</p> Signup and view all the answers

    What does selecting appropriate materials depend on?

    <p>Stress-rupture time</p> Signup and view all the answers

    What does correct design involve according to the text?

    <p>Avoiding stress raisers</p> Signup and view all the answers

    What do cold working and forging create according to the text?

    <p>Gas porosity and cracks</p> Signup and view all the answers

    What is used to detect crack initiation, fatigue striations, and fracture modes?

    <p>Scanning electron microscope (SEM)</p> Signup and view all the answers

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