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Home ‣ Mechanical Engineering ‣ Hydraulics and Fluid Mechanics Comments
  • Question

  • If a pitot tube is placed with its nose upstream, downstream or sideways, the reading will be the same in every case.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • False 

    • Hydraulics and Fluid Mechanics problems

    Search Results

    • 1. The shear stress-strain graph for a newtonian fluid is a

    • Options
    • A. straight line
    • B. parabolic curve
    • C. hyperbolic curve
    • D. elliptical
      • Discuss
    • 2. The specific gravity has no units.

    • Options
    • A. Agree
    • B. Disagree
      • Discuss
    • 3. The discharge over a rectangular weir, considering the velocity of approach, is (where H1 = Total height of water above the weir = H + Ha H = Height of water, over the crest of the weir, and Ha = Height of water, due to velocity of approach)

    • Options
    • A. Cd x L2g [H1 - Ha]
    • B. Cd x L2g [H13/2 - Ha3/2]
    • C. Cd x L2g [H12 - Ha2]
    • D. Cd x L2g [H15/2 - Ha5/2]
      • Discuss
    • 4. The atmospheric pressure at sea level is

    • Options
    • A. 103 kN/m2
    • B. 10.3 m of water
    • C. 760 mm of mercury
    • D. all of these
      • Discuss
    • 5. The viscosity of water is __________ than that of mercury.

    • Options
    • A. higher
    • B. lower
      • Discuss
    • 6. The loss of pressure head in case of laminar flow is proportional to

    • Options
    • A. velocity
    • B. (velocity)2
    • C. (velocity)3
    • D. (velocity)4
      • Discuss
    • 7. Whenever a plate is held immersed at some angle with the direction of flow of the liquid, it is subjected to some pressure. The component of this pressure, at right angles to the direction of flow of the liquid is known as lift.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. Reynold's number is the ratio of inertia force to

    • Options
    • A. pressure force
    • B. elastic force
    • C. gravity force
    • D. viscous force
      • Discuss
    • 9. The volume per unit mass of a liquid is called specific volume.

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 10. If a body floating in a liquid does not return back to its original position, and heels farther "away when given a small angular displacement, the body is said to be in neutral equilibrium.

    • Options
    • A. Yes
    • B. No
      • Discuss

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