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Hydraulics problems

  • 1. 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
  • 2. In an inclined position, a venturimeter records

  • Options
  • A. more reading
  • B. less reading
  • C. same reading
  • D. none of these.
    • Discuss
  • 3. Weber number is the ratio of inertia force to

  • Options
  • A. surface tension
  • B. gravitational force
  • C. elasticity
  • D. viscosity.
    • Discuss
  • 4. 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
  • 5. 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
  • 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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