Fluid Flow and Conservation of Energy in Varying Cross-Sectional Area Pipes
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Questions and Answers

What is required to produce the acceleration of an incompressible fluid in a pipe of varying cross-sectional area?

  • A force exerted by the surrounding fluid (correct)
  • A decrease in fluid viscosity
  • An increase in fluid density
  • An increase in temperature of the fluid
  • According to Bernoulli's equation, what does the pressure difference between two points in a pipe relate to?

  • Velocity changes and elevation changes (correct)
  • Viscosity and compressibility
  • Frictional losses and pipe roughness
  • Density changes and temperature changes
  • In a steady flow of incompressible fluid through a pipe of varying cross-sectional area, what causes the velocity to change?

  • Viscosity of the fluid
  • Force of gravity
  • Friction between the fluid and the pipe walls
  • Equation of continuity (correct)
  • What did Swiss physicist Daniel Bernoulli develop in 1738 to relate pressure difference between two points in a pipe?

    <p>Bernoulli's equation</p> Signup and view all the answers

    What does the pressure difference between two points in a pipe depend on, according to Bernoulli's equation?

    <p>Velocity changes, elevation changes, and kinetic energy change</p> Signup and view all the answers

    According to Bernoulli's equation, what remains constant as we move along a streamline?

    <p>All of the above</p> Signup and view all the answers

    What is the assumption made when applying the energy conservation principle in fluid flow?

    <p>No energy is lost due to internal friction</p> Signup and view all the answers

    In Bernoulli's equation, what does the term 'pgh' represent?

    <p>Potential energy per unit volume</p> Signup and view all the answers

    What happens to the lost kinetic energy of a fluid according to Bernoulli's equation?

    <p>It gets converted into heat energy</p> Signup and view all the answers

    Why does Bernoulli's equation ideally apply to fluids with zero viscosity?

    <p>Because it assumes no internal friction or energy loss</p> Signup and view all the answers

    What is the general expression that relates the pressure difference between two points in a pipe to velocity and elevation changes, according to the text?

    <p>Bernoulli's equation</p> Signup and view all the answers

    What is required to produce the acceleration of an incompressible fluid in a pipe of varying cross-sectional area, as mentioned in the text?

    <p>A force from the surrounding fluid is required</p> Signup and view all the answers

    What did Swiss physicist Daniel Bernoulli develop in 1738 to relate pressure difference between two points in a pipe?

    <p>Bernoulli's equation</p> Signup and view all the answers

    In Bernoulli's equation, what does the term 'pgh' represent?

    <p>Potential energy per unit volume</p> Signup and view all the answers

    According to the text, what happens to the lost kinetic energy of a fluid according to Bernoulli's equation?

    <p>It is converted into potential energy</p> Signup and view all the answers

    According to Bernoulli's equation, what does the term 'pgh' represent?

    <p>Change in gravitational potential energy</p> Signup and view all the answers

    What assumption is made when applying the energy conservation principle in fluid flow?

    <p>No energy lost due to friction</p> Signup and view all the answers

    What does the pressure difference between two points in a pipe depend on, according to Bernoulli's equation?

    <p>Flow velocity</p> Signup and view all the answers

    What is required to produce the acceleration of an incompressible fluid in a pipe of varying cross-sectional area?

    <p>Pressure difference between two points</p> Signup and view all the answers

    What happens to the lost kinetic energy of a fluid according to Bernoulli's equation?

    <p>Converted into heat energy</p> Signup and view all the answers

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