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Hydraulics problems

  • 1. Frictional loss of head includes the loss of energy due to

  • Options
  • A. viscosity
  • B. turbulence
  • C. both (a) and (b)
  • D. none of these.
    • Discuss
  • 2. A nozzle is fitted at the end of a pipe whose length is 320 m and diameter is 10 cm. If the value of f = 0.01, the diameter of the nozzle for the maximum transmission of power through the nozzle is

  • Options
  • A. 2.4 cm
  • B. 2.5 cm
  • C. 2.6 cm
  • D. 2.7 cm.
    • Discuss
  • 3. Pick up the incorrect statement from the following :

  • Options
  • A. In radial flow, fluid flows such that pressure and velocity at any point change with respect to its distance from the central axis
  • B. In radial flow, velocity of flow is in a radial direction
  • C. In radial flow, flow may take place radially inward to or outward from the centre
  • D. In radial flow, flow is one dimensional with stream lines parallel.
    • Discuss
  • 4. For solving the problems is hydraulic engineering, the velocity used is

  • Options
  • A. velocity at the centre of pipe section
  • B. average velocity of flow over a section
  • C. mean of the velocities at the centre and that along the pipe surface
  • D. none of these.
    • Discuss
  • 5. The length of hydraulic jump is roughly

  • Options
  • A. 2 to 3 times its height
  • B. 3 to 5 times its height
  • C. 5 to 7 times its height
  • D. None of these.
    • Discuss
  • 6. A load w is rolled a distance d across the deck of a ship of weight W, due to which the ship heels through ?°. The metacentric height of the ship, is

  • Options
  • A.
  • B.
  • C.
  • D.
    • Discuss
  • 7. Falling drops of water become spheres due to

  • Options
  • A. adhesion
  • B. cohesion
  • C. surface tension
  • D. viscosity.
    • Discuss
  • 8. Chezy's formula is used to determine

  • Options
  • A. head loss due to friction in pipe
  • B. velocity of flow in pipe
  • C. velocity of flow in open channels
  • D. none of these.
    • Discuss
  • 9. The formula Q = m x L x 2g x H3/2 where Civil Engineering Hydraulics: The formula Q = m x L x 2g x H3/2< was suggested by :

  • Options
  • A. Bazin
  • B. Francis
  • C. Cipolletti
  • D. None of these.
    • Discuss
  • 10. If a pitot tube is placed with its nose facing down stream, the liquid

  • Options
  • A. does not rise in the tube
  • B. rises in the tube to a height
  • C. falls in the tube to a depth
  • D. none of these.
    • Discuss

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