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  • Question

  • 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%

  • Correct Answer
  • 1.5% 

    • Hydraulics problems

    Search Results

    • 1. 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
    • 2. 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
    • 3. In two dimensional flow the components of velocity are given by u = ax; v = by. The stream lines will be

    • Options
    • A. circular
    • B. parabolic
    • C. hyperbolic
    • D. elliptical.
      • Discuss
    • 4. Hydraulic coefficient of an orifice means the coefficient of

    • Options
    • A. velocity
    • B. contraction
    • C. resistance
    • D. all the above.
      • Discuss
    • 5. Chezy's constant is suggested by

    • Options
    • A. Bazin
    • B. Kutter
    • C. Manning
    • D. Powell.
      • Discuss
    • 6. 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
    • 7. 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
    • 8. The minimum specific energy of flow of water in open channel is : (where hc is the critical depth)

    • Options
    • A. hc
    • B.
    • C.
    • D. hc
      • Discuss
    • 9. Orifice-meter is used to measure

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

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss

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