Mastering Fluid Mechanics
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Questions and Answers

Which one of the following statements is true about fluids?

  • Fluids are gases.
  • Fluids are substances that can flow. (correct)
  • Fluids are substances that cannot flow.
  • Fluids are solids.

    • What is the equation for the pressure difference between two points in a fluid at rest?

  • $p2 - p1 = U(g + a)$
  • $p2 - p1 = U(g + a)h$ (correct)
  • $p2 - p1 = U(g - a)h$
  • $p2 - p1 = U(g - a)$

    • What is the equation for the angle which the liquid's free surface makes with the horizontal?

  • $T = a + g$
  • $T = a - g$
  • $T = g/a$
  • $T = a/g$ (correct)

    • Which of the following assumptions is made about fluids in fluid mechanics?

    <p>Fluids are incompressible.</p> Signup and view all the answers

    What is the excess pressure above atmospheric pressure called?

    <p>Gauge pressure</p> Signup and view all the answers

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