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Home Mechanical Engineering Hydraulics and Fluid Mechanics Comments

  • Question
  • The value of coefficient of discharge is __________ the value of coefficient of velocity.


  • Options
  • A. less than
  • B. same as
  • C. more than

  • Correct Answer
  • less than 


  • Hydraulics and Fluid Mechanics problems


    Search Results


    • 1. When a cylindrical vessel of radius (r) containing liquid is revolved about its vertical axis ? rad/s, then depth of parabola which the liquid assumes is

    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss
    • 2. The vacuum pressure is always the negative gauge pressure.

    • Options
    • A. Yes
    • B. No
    • Discuss
    • 3. A weir is said to be narrow-crested weir, if the width of the crest of the weir is __________ half the height of water above the weir crest.

    • Options
    • A. equal to
    • B. less than
    • C. more than
    • Discuss
    • 4. Stoke is the unit of

    • Options
    • A. kinematic viscosity in C. G. S. units
    • B. kinematic viscosity in M. K. S. units
    • C. dynamic viscosity in M. K. S. units
    • D. dynamic viscosity in S. I. units
    • Discuss
    • 5. A flow whose streamline is represented by a curve, is called

    • Options
    • A. one-dimensional flow
    • B. two-dimensional flow
    • C. three-dimensional flow
    • D. four-dimensional flow
    • Discuss
    • 6. Turbulent flow takes place at high velocities.

    • Options
    • A. Agree
    • B. Disagree
    • Discuss
    • 7. The ratio of the inertia force to the viscous force is called

    • Options
    • A. Reynold's number
    • B. Froude's number
    • C. Weber's number
    • D. Euler's number
    • Discuss
    • 8. The pressure of a liquid measured with the help of a piezometer tube is

    • Options
    • A. vacuum pressure
    • B. gauge pressure
    • C. absolute pressure
    • D. atmospheric pressure
    • Discuss
    • 9. If the depth of water in an open channel is greater than the critical depth, the flow is called

    • Options
    • A. critical flow
    • B. turbulent flow
    • C. tranquil flow
    • D. torrential flow
    • Discuss
    • 10. A submerged body is said to be in a stable equilibrium, if its centre of gravity __________ the centre of buoyancy.

    • Options
    • A. coincides with
    • B. lies below
    • C. lies above
    • Discuss


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