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  • Question

  • An error of 1% in measuring the head of water over the crest of a triangular notch, produces an error in the discharge which is equal to


  • Options
  • A. 1.25%
  • B. 1.5%
  • C. 2.0%.
  • D. 2.5%

  • Correct Answer
  • 2.5% 

    • Hydraulics problems

    Search Results

    • 1. Discharge over an ogee weir remains the same as that of

    • Options
    • A. sharp crested weir
    • B. triangular weir
    • C. cippoletti weir
    • D. drowned weir.
      • Discuss
    • 2. Manometers are used to measure

    • Options
    • A. pressure in water channels, pipes etc.
    • B. difference in pressure at two points
    • C. atmospheric pressure
    • D. very low pressure.
      • Discuss
    • 3. If total head available at the inlet of pipe and f1 is the loss of head due to friction in the pipe, the maximum efficiency of transmission of power (?max) is

    • Options
    • A. 1/2
    • B. 2/3
    • C. 3/4
    • D. 4/5
      • Discuss
    • 4. Back water curve is caused if

    • Options
    • A. friction head loss is more than the bed slope
    • B. pressure is due to weir in the channel
    • C. there is an increase in width of the channel
    • D. none of these.
      • Discuss
    • 5. In an open tube, free surface of mercury remains

    • Options
    • A. horizontal
    • B. curved upwards
    • C. curved downwards
    • D. none of these.
      • Discuss
    • 6. The following is not a laminar flow

    • Options
    • A. Flow of oil in measuring instruments
    • B. Flow in beds in ground water
    • C. Rise of water in plants through roots
    • D. Flow of blood in the arteries of human body
    • E. Flow in water pipe lines.
      • Discuss
    • 7. Which one of the following equation is applicable to unsteady flow in open channels :

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 8. The magnitude of water hammer in a pipe depends upon

    • Options
    • A. speed at which value is closed
    • B. length of the pipe line
    • C. elastic properties of the pipe material
    • D. elastic properties of the following liquid
    • E. all the above.
      • Discuss
    • 9. To avoid an interruption in the flow of a syphon, an air vessel is provided

    • Options
    • A. at the inlet
    • B. at the outlet
    • C. at the summit
    • D. at any point between intet and outlet.
      • Discuss
    • 10. The equation for the viscosity, is suggested

    • Options
    • A. Bernoulli
    • B. Newton
    • C. Chezy
    • D. Bezin
    • E. Helmholtz.
      • Discuss

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