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  • Question

  • For an anisotropic soil, permeabilities in x and y directions are kx and ky respectively in a two dimensional flow. The effective permeability keq for the soil is given by


  • Options
  • A. kx + ky
  • B. kx/ky
  • C. (kx2 + ky2)1/2
  • D. (kxky)1/2

  • Correct Answer
  • (kxky)1/2 

    • More questions

    • 1. If H and d are the water depth and drop in the bed level at a Sarda fall, the width B of the trapezoidal crest, is given by

    • Options
    • A. B = 0.22 H + d
    • B. B = 0.33 H + d
    • C. B = 0.44 H + d
    • D. B = 0.55 H + d
      • Discuss
    • 2. In a three hinged arch, the bending moment will be zero

    • Options
    • A. at right hinge only
    • B. at left hinge only
    • C. at both right and left hinges
    • D. at all the three hinges.
      • Discuss
    • 3. It ? is the probable error of an observed bearing of a line of length l, the error over the whole length of the traverse of n lines of length l is

    • Options
    • A. l n
    • B. n
    • C. ?
    • D. ? n
      • Discuss
    • 4. 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
    • 5. Setting out of Lemniscate transition curves, is done with

    • Options
    • A. perpendicular offsets
    • B. radial offsets
    • C. deflection angles
    • D. polar deflection angles.
      • Discuss
    • 6. A construction schedule is prepared after collecting

    • Options
    • A. number of operations
    • B. output of labour
    • C. output of machinery
    • D. quantity of various items
    • E. all the above.
      • Discuss
    • 7. Which one of the following statements is true?

    • Options
    • A. The value of kinetic energy correction factor for turbulent flow lies between 1.03 to 1.06
    • B. The value of kinetic energy correction factor for laminar flow is 2
    • C. The practical value of kinetic energy correction factor for turbulent flow is unity
    • D. all the above.
      • Discuss
    • 8. The rotational velocity of a satellite is increased by 450 m per second if its launch is done from equator

    • Options
    • A. eastward
    • B. northward
    • C. westward
    • D. southward
    • E. upward.
      • Discuss
    • 9. If the length of a transition curve to be introduced between a straight and a circular curve of radius 500 m is 90 m, the maximum perpendicular offset for the transition curve, is

    • Options
    • A. 0.70 m
    • B. 1.70 m
    • C. 2.70 m
    • D. 3.70 m
    • E. 4.70 m
      • Discuss
    • 10. The ratio of the inertia and viscous forces acting in any flow, ignoring other forces, is called

    • Options
    • A. Euler number
    • B. Frode number
    • C. Reynold number
    • D. Weber number.
      • Discuss

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