Physics · Geotechnical Engineering
The A-line in the Unified Soil Classification System (USCS) table is represented by which of the following equations?
- 1Ip = 20 - WL
- 2Ip = 0.73(20 - WL)
- 3Ip = 0.73(WL - 20)✓
- 4Ip = WL - 20
Correct answer
Ip = 0.73(WL - 20)
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