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  • Question

  • To measure very low pressure, we use


  • Options
  • A. barometers
  • B. piezometers
  • C. manometers
  • D. differential manometers.

  • Correct Answer
  • manometers 

    • Hydraulics problems

    Search Results

    • 1. The ratio of the maximum height to which a jet inclined through ? rises to its total horizontal span is

    • Options
    • A. sin ?
    • B. cos ?
    • C. tan ?
    • D. cot ?.
      • Discuss
    • 2. The flow in open channel is said to be critical if the Froude number is :

    • Options
    • A. less than 1.0
    • B. equal to 1.0
    • C. greater than 1.0
    • D. None of these.
      • Discuss
    • 3. Pick up the correct statement regarding convergent divergent mouth piece from the following :

    • Options
    • A. It converges upto Venacontracta and then diverges
    • B. In this mouth piece there is no loss of energy due to sudden enlargement
    • C. The coefficient of discharge is unity
    • D. All the above.
      • Discuss
    • 4. To ensure that water does not rise more than 100 cm above the crest, for a discharge of 5.00 m3/sec, the length of water will be

    • Options
    • A. 2.48 m
    • B. 2.49 m
    • C. 2.50 m
    • D. 2.51 m.
      • Discuss
    • 5. The discharge through an internal mouth piece is more if its length is

    • Options
    • A. < diameter
    • B. < diameter
    • C. ? diameter
    • D. none of these.
      • Discuss
    • 6. For uniform flow in canals

    • Options
    • A. there is a balance between the frictional loss and drop in elevation of the channel
    • B. bed and free water surfaces of a channel are parallel to each other
    • C. bed of channel represents the hydraulic gradient
    • D. all the above.
      • Discuss
    • 7. One metric slug is equal to

    • Options
    • A. 1 kg wt
    • B. 9.81 kg wt
    • C. 9.81 kg mass
    • D. 0.98 kg wt.
      • Discuss
    • 8. Practical fluids possess

    • Options
    • A. viscosity
    • B. surface tension
    • C. compressibility
    • D. all the above.
      • Discuss
    • 9. An ideal fluid

    • Options
    • A. is frictionless and incompressible
    • B. obeys Newton's law of velocity
    • C. is similar to gas
    • D. is very viscous.
      • Discuss
    • 10. With a clinging nappe of a weir, the excess discharge, is

    • Options
    • A. 6% to 7%
    • B. 8% to 10%
    • C. 18% to 20%
    • D. 25% to 30%
    • E. 30% to 40%.
      • Discuss

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