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Hydraulics problems

  • 1. If u, v, w are the components of the velocity v of a moving particle, the equation Civil Engineering Hydraulics: If u, v, w are the components of the velocity v of a moving particle, th represents

  • Options
  • A. one diamensional flow
  • B. two dimensional flow
  • C. three dimensional flow
  • D. none of these.
    • Discuss
  • 2. From a nozzle exposed to atmosphere, the liquid jet traverses

  • Options
  • A. a straight line
  • B. a circular path
  • C. an elliptical path
  • D. a parabolic path.
    • Discuss
  • 3. Liquids

  • Options
  • A. cannot be compressed
  • B. do not occupy definite shape
  • C. are not affected by change in pressure and temperature
  • D. none of these.
    • Discuss
  • 4. The ratio of the percentagge error in the discharge and percentage error in the measurement of head over a triangular notch, is

  • Options
  • A. 2/3
  • B. 3/2
  • C. 2/5
  • D. 5/2
    • Discuss
  • 5. Mercury is generally used in barometers because

  • Options
  • A. its vaour pressure is practically zero
  • B. the height of the barometer will be less
  • C. it is a best liquid
  • D. both (a) and (b) above
  • E. both (b) and (c) above.
    • Discuss
  • 6. For the most economical trapezoidal open channel,

  • Options
  • A. half of the top width must be equal to one of the sloping sides
  • B. the hydraulic mean depth must be equal to half the depth of flow
  • C. the semicircle drawn with top width as diameter must touch the three sides of the channel
  • D. All of these.
    • Discuss
  • 7. Kinematic viscosity of liquids by equation Civil Engineering Hydraulics: Kinematic viscosity of liquids by equation is determined by :

  • Options
  • A. Redwood viscometer
  • B. Engler viscometer
  • C. Saybolt universal viscometer
  • D. None of these.
    • Discuss
  • 8. The velocity distribution of viscous fluid through a circular/pipe is :

  • Options
  • A. hyperbolic
  • B. circular
  • C. parabolic
  • D. elliptical.
    • Discuss
  • 9. Water displaced by a floating wooden block of density 0.75, 5 m long, 2 m wide and 3 m high, is

  • Options
  • A. 17.5 m3
  • B. 20.0 m3
  • C. 22.5 m3
  • D. 25 km3.
    • Discuss
  • 10. If the forces are due to inertia and gravity, and frictional resistance plays only a minor role, the design of the channels is made by comparing

  • Options
  • A. Reynold number
  • B. Froude number
  • C. Weber number
  • D. Mach number.
    • Discuss

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