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Irrigation - Engineering

Q1:

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 down stream of the crestwall, is given by the equation

A

B

C

D

ANS:C -

The answer is C.

t= (h-1)/(G-1).
Now, h-1=h,
So, we get h'/(G-1).