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Questions and Answers

Which of the following is true about the Bernoulli's equation?

  • It states that pressure and velocity of a fluid are directly proportional (correct)
  • It states that pressure and density of a fluid are directly proportional
  • It states that pressure and velocity of a fluid are inversely proportional
  • It states that pressure and density of a fluid are inversely proportional
  • What is the difference between laminar and turbulent flow?

  • Laminar flow is characterized by smooth and predictable motion, while turbulent flow is characterized by irregular and unpredictable motion (correct)
  • Laminar flow occurs at low Reynolds numbers, while turbulent flow occurs at high Reynolds numbers
  • Laminar flow is characterized by irregular and unpredictable motion, while turbulent flow is characterized by smooth and predictable motion
  • Laminar flow occurs at high Reynolds numbers, while turbulent flow occurs at low Reynolds numbers
  • What is the difference between absolute pressure and gauge pressure?

  • Absolute pressure is the sum of atmospheric pressure and gauge pressure, while gauge pressure is the pressure measured relative to atmospheric pressure (correct)
  • Absolute pressure is the pressure measured at the surface of a fluid, while gauge pressure is the pressure measured at the center of a fluid
  • Absolute pressure is the pressure measured relative to atmospheric pressure, while gauge pressure is the sum of atmospheric pressure and absolute pressure
  • Absolute pressure is the pressure measured at the center of a fluid, while gauge pressure is the pressure measured at the surface of a fluid
  • Which of the following is NOT a stress state in mechanics of materials?

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

    What is the formula for calculating strain in mechanics of materials?

    <p>Change in length/Original length</p> Signup and view all the answers

    What is the difference between Hooke's Law and Poisson's Ratio?

    <p>Hooke's Law describes the relationship between stress and strain, while Poisson's Ratio describes the relationship between lateral and axial strain</p> Signup and view all the answers

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