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  • Question

  • The minimum specific energy of flow of water in open channel is : (where hc is the critical depth)


  • Options
  • A. hc
  • B. The minimum specific energy of flow of water in open channel is : (where hc is the critical depth) h
  • C. The minimum specific energy of flow of water in open channel is : (where hc is the critical depth) h
  • D. The minimum specific energy of flow of water in open channel is : (where hc is the critical depth) h hc

  • Correct Answer
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    • Hydraulics problems

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    • 1. If the Mach number for a fluid flow is less than 1, the flow is

    • Options
    • A. sonic
    • B. supersonic
    • C. sub-sonic
    • D. none of these.
      • Discuss
    • 2. For a long pipe, the head loss

    • Options
    • A. at the entrance is ignored
    • B. at the outlet is ignored
    • C. at the entrance and outlet both are ignored
    • D. due to friction is ignored.
      • Discuss
    • 3. An error of 1% in measuring the head of water over the crest of a rectangular weir, produces an error in the discharge which is equal to

    • Options
    • A. 1.25%
    • B. 1.5%
    • C. 1.75%
    • D. 2.25%
      • Discuss
    • 4. In a fluid flow a particle may posses

    • Options
    • A. elevation energy
    • B. kinetic energy
    • C. pressure energy
    • D. initial energy
    • E. all the above.
      • Discuss
    • 5. Total pressure on the top of a closed cylindrical vessesl completely filled with liquid, is directly proportional to

    • Options
    • A. radius
    • B. (radius)2
    • C. (radius)3
    • D. (radius)4
    • E. none of these.
      • Discuss
    • 6. Orifice-meter is used to measure

    • Options
    • A. pressure at the point
    • B. discharge
    • C. average speed
    • D. velocity.
      • Discuss
    • 7. The pressure variation along the radial direction for vortex flow along a horizontal plane is related by

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 8. A water tank partially filled with water is being carried on a truck moving with a constant horizontal acceleration. The level of the water

    • Options
    • A. rises on the front side of the tank
    • B. falls on the back side of the tank
    • C. remains the same at both sides of the tank
    • D. rises on the back side and falls on the front side
    • E. none of these.
      • Discuss
    • 9. In a venturimeter, the divergent cone is kept

    • Options
    • A. shorter than convergent cone
    • B. equal to covergent cone
    • C. longer than convergent cone
    • D. none of these.
      • Discuss
    • 10. In flowing liquids pitot tubes are used measure

    • Options
    • A. discharge
    • B. pressure
    • C. velocity
    • D. depth.
      • Discuss

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