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Hydraulics problems

  • 1. The velocity of flow (v) at the outlet of a syphon of length l, is given by

  • Options
  • A.
  • B.
  • C.
  • D.
    • Discuss
  • 2. 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
  • 3. 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
  • 4. 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
  • 5. 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
  • 6. 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
  • 7. To measure very low pressure, we use

  • Options
  • A. barometers
  • B. piezometers
  • C. manometers
  • D. differential manometers.
    • Discuss
  • 8. 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
  • 9. 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
  • 10. Practical fluids possess

  • Options
  • A. viscosity
  • B. surface tension
  • C. compressibility
  • D. all the above.
    • Discuss

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