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  • Question

  • Equation of continuity of flow is based on the principle of conservation of


  • Options
  • A. mass
  • B. momentum
  • C. force
  • D. none of these.

  • Correct Answer
  • mass 

    • Hydraulics problems

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    • 1. 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
    • 2. Weber number is the ratio of inertia force to

    • Options
    • A. surface tension
    • B. gravitational force
    • C. elasticity
    • D. viscosity.
      • Discuss
    • 3. In an inclined position, a venturimeter records

    • Options
    • A. more reading
    • B. less reading
    • C. same reading
    • D. none of these.
      • Discuss
    • 4. 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
    • 5. Mass density of liquid (?) is given by

    • Options
    • A.
    • B.
    • C.
    • D. all the above.
      • Discuss
    • 6. 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
    • 7. 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
    • 8. 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
    • 9. The centre of pressure of a vertical plane immersed in a liquid is at

    • Options
    • A. centre of higher edge
    • B. centre of lower edge
    • C. centroid of the area
    • D. none of these.
      • Discuss
    • 10. In an inclined pipe, the pressure difference at its two ends is due to

    • Options
    • A. sudden head drop at inlet
    • B. exit head drop
    • C. frictional loss head
    • D. elevation head
    • E. all the above.
      • Discuss

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