The spacing of tile drains to relieve water-logged land is directly pr

1.	The spacing of tile drains to relieve water-logged land is directly proportional to the
A.	depth of drain below the ground surface
B.	depth of impervious strata from the drain
C.	depth of drain below the water level
D.	coefficient of permeability of the soil to be drained
Answer» E.

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The spacing of tile drains to relieve water-logged land is directly proportional to the

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