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

  • The magnitude of water hammer depends upon the


  • Options
  • A. elastic properties of the pipe material
  • B. elastic properties of the liquid flowing through the pipe
  • C. speed at which the valve is closed
  • D. all of the above

  • Correct Answer
  • all of the above 

    • Hydraulics and Fluid Mechanics problems

    Search Results

    • 1. The centre of pressure for a vertically immersed surface lies at a distance equal to __________ the centre of gravity.

    • Options
    • A. below
    • B. above
    • C. below
    • D. above
      • Discuss
    • 2. An opening in the side of a tank or vessel such that the liquid surface with the tank is below the top edge of the opening, is called

    • Options
    • A. weir
    • B. notch
    • C. orifice
    • D. none of these
      • Discuss
    • 3. According to Bernoulli's equation

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 4. The shear stress-strain graph for a non-newtonian fluid is a curve.

    • Options
    • A. Correct
    • B. Incorrect
      • Discuss
    • 5. The coefficient of discharge in case of internal mouthpiece is __________ that of external mouthpiece.

    • Options
    • A. less than
    • B. more than
      • Discuss
    • 6. In a lockgate, the reaction between two gates is (where P = Resultant pressure on the lock gate, and ? = Inclination of the gate with the normal to the side of the lock)

    • Options
    • A.
    • B.
    • C. P / 2sin?
    • D.
      • Discuss
    • 7. Newton's law of viscosity is a relationship between

    • Options
    • A. pressure, velocity and temperature
    • B. shear stress and rate of shear strain
    • C. shear stress and velocity
    • D. rate of shear strain and temperature
      • Discuss
    • 8. The property of a liquid which offers resistance to the movement of one layer of liquid over another adjacent layer of liquid, is called

    • Options
    • A. surface tension
    • B. compressibility
    • C. capillarity
    • D. viscosity
      • Discuss
    • 9. In a sharp-crested weir, the thickness of the weir is kept less than half of the height of water above the crest of the weir.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. A flow is called super-sonic if the

    • Options
    • A. velocity of flow is very high
    • B. discharge is difficult to measure
    • C. Mach number is between 1and 6
    • D. none of these
      • Discuss

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