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  • Question

  • Weber number is the ratio of inertia force to


  • Options
  • A. surface tension
  • B. gravitational force
  • C. elasticity
  • D. viscosity.

  • Correct Answer
  • surface tension 

    • Hydraulics problems

    Search Results

    • 1. In an inclined position, a venturimeter records

    • Options
    • A. more reading
    • B. less reading
    • C. same reading
    • D. none of these.
      • Discuss
    • 2. The flow in which each liquid particle has a definite path and the paths of adjacent particles do not cross each other, is called

    • Options
    • A. stream line flow
    • B. uniform flow
    • C. steady flow
    • D. turbulent flow.
      • Discuss
    • 3. Mass density of liquid (?) is given by

    • Options
    • A.
    • B.
    • C.
    • D. all the above.
      • Discuss
    • 4. An open container filled with water is moved vertically upward with a uniform linear acceleration. The pressure at its bottom will be

    • Options
    • A. greater than static pressure
    • B. equal to static pressure
    • C. lesser than static pressure
    • D. none of these.
      • Discuss
    • 5. The hydrostatic force acts through

    • Options
    • A. centre of pressure
    • B. centre of top edge
    • C. centre of bottom edge
    • D. metacentre.
      • Discuss
    • 6. The ratio of time for completely emptying the hemispherical tank and circular horizontal tank of equal radii both fitted with similar orifices at their bottoms is :

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 7. Equation of continuity of flow is based on the principle of conservation of

    • Options
    • A. mass
    • B. momentum
    • C. force
    • D. none of these.
      • Discuss
    • 8. If a1 and a2 are the cross-sectional areas of a tank and orifice, h the height of water level in tank above the centre of the orifice, the velocity of approach is given by

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 9. For a most economical rectangular channel, the width of the channel must be

    • Options
    • A. equal to depth of flow
    • B. twice the depth of flow
    • C. half the depth of flow
    • D. None of these.
      • Discuss
    • 10. The pressure rise due to water hammer depends upon

    • Options
    • A. the velocity of flow of water in the pipe
    • B. the length of pipe
    • C. time taken to close the valve
    • D. the elasticity of the pipe material
    • E. All of above.
      • Discuss

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