Irrigation Engineering

If the height of the hydraulic gradient line above the floor of thickness t is h and the specific gravity of the material of the floor is G, the minimum thickness t of the floor downstream of the crest-wall, is given by the equation

  • A. t = (h + 1)/(G + t)
  • B. t = (h – 1)/(G + t)
  • C. t = (h – 1)/(G – t)
  • D. t = (h + 1)/G
Answer: Option C.
Explanation: 

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