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  • Question
  • The discharg formula Q = Cd 2gH x A is used for rectangular


  • Options
  • A. small orifices only
  • B. large orifices only
  • C. small and large orifices only
  • D. for all types of orifices.

  • Correct Answer
  • large orifices only 


  • Hydraulics problems


    Search Results


    • 1. The discharge through a V-notch weir varies as

    • Options
    • A. H
    • B. 1/H
    • C. H3/2
    • D. H7/2
    • E. H5/2.
    • Discuss
    • 2. Water belongs to

    • Options
    • A. Newtonian fluids
    • B. non-Newtonian fluids
    • C. compressible fluid
    • D. none of these.
    • Discuss
    • 3. If L, D and f are the length, diameter and coefficient of friction of a pipe, the ratio of the areas of the pipe A and nozzle a, to transmit maximum power, is

    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss
    • 4. For mountaneous regions having steep slope, wagons for carrying liquid are made with bottom

    • Options
    • A. parallel to the road surface
    • B. parallel to the horizontal surface
    • C. inclined upward while moving upwards
    • D. inclined downward while moving downwards.
    • Discuss
    • 5. The ratio of inertia force of a flowing fluid and the viscous force of the liquid is called :

    • Options
    • A. Renold's number
    • B. Froude's number
    • C. Euler's number
    • D. Weber's number.
    • Discuss
    • 6. For a most economical rectangular channel, the hydraulic mean depth, is equal to

    • Options
    • A. the depth of flow
    • B. half the depth of flow
    • C. one-third depth of flow
    • D. None of these.
    • Discuss
    • 7. Flow of water in pipes of diameter more than 3 metres, can be measured by

    • Options
    • A. pitot tube
    • B. venturimeter
    • C. orifice plate
    • D. rotameter.
    • Discuss
    • 8. Energy equation is usually applicable to

    • Options
    • A. non-uniform flow
    • B. turbulent flow
    • C. laminar flow
    • D. steady flow.
    • Discuss
    • 9. Hydraulic grade line

    • Options
    • A. remains above the centre line of conduit
    • B. remains below the centre line of conduit
    • C. remains parallel to the centre line of conduit
    • D. may be above or below the centre line of conduit.
    • Discuss
    • 10. The flow is called rotational if its velocity normal to the plane of area is equal to

    • Options
    • A. angular velocity vector
    • B. twice the angular velocity vector
    • C. thrice the angular velocity vector
    • D. none of these.
    • Discuss


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