

MCQOPTIONS
Saved Bookmarks
1. |
To make certain that the backfill material is more pervious than the soil to be drained, the relationship used in |
A. | (D15)Filter ‚â§ 5 (D85)Protected soil |
B. | (D15)Filter ‚â• 5 (D85)Protected soil |
C. | (D15)Filter ‚â• 5 (D15)Protected soil |
D. | (D15)Filter ‚â§ 5 (D15)Protected soil |
Answer» E. | |